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Group rocksdb.sst.read.micros stat by different user read IOActivity + misc (#11444) 

Summary:
**Context/Summary:**
- Similar to https://github.com/facebook/rocksdb/pull/11288 but for user read such as `Get(), MultiGet(), DBIterator::XXX(), Verify(File)Checksum()`.
   - For this, I refactored some user-facing `MultiGet` calls in `TransactionBase` and various types of `DB` so that it does not call a user-facing `Get()` but `GetImpl()` for passing the `ReadOptions::io_activity` check (see PR conversation)
   - New user read stats breakdown are guarded by `kExceptDetailedTimers` since measurement shows they have 4-5% regression to the upstream/main.

- Misc
   - More refactoring: with https://github.com/facebook/rocksdb/pull/11288, we complete passing `ReadOptions/IOOptions` to FS level. So we can now replace the previously [added](https://github.com/facebook/rocksdb/pull/9424) `rate_limiter_priority` parameter in `RandomAccessFileReader`'s `Read/MultiRead/Prefetch()` with `IOOptions::rate_limiter_priority`
   - Also, `ReadAsync()` call time is measured in `SST_READ_MICRO` now

Pull Request resolved: https://github.com/facebook/rocksdb/pull/11444

Test Plan:
- CI fake db crash/stress test
- Microbenchmarking

**Build** `make clean && ROCKSDB_NO_FBCODE=1 DEBUG_LEVEL=0 make -jN db_basic_bench`
- google benchmark version: 604f6fd3f4
- db_basic_bench_base: upstream
- db_basic_bench_pr: db_basic_bench_base + this PR
- asyncread_db_basic_bench_base: upstream + [db basic bench patch for IteratorNext](https://github.com/facebook/rocksdb/compare/main...hx235:rocksdb:micro_bench_async_read)
- asyncread_db_basic_bench_pr: asyncread_db_basic_bench_base + this PR

**Test**

Get
```
TEST_TMPDIR=/dev/shm ./db_basic_bench_{null_stat|base|pr} --benchmark_filter=DBGet/comp_style:0/max_data:134217728/per_key_size:256/enable_statistics:1/negative_query:0/enable_filter:0/mmap:1/threads:1 --benchmark_repetitions=1000
```

Result
```
Coming soon
```

AsyncRead
```
TEST_TMPDIR=/dev/shm ./asyncread_db_basic_bench_{base|pr} --benchmark_filter=IteratorNext/comp_style:0/max_data:134217728/per_key_size:256/enable_statistics:1/async_io:1/include_detailed_timers:0 --benchmark_repetitions=1000 > syncread_db_basic_bench_{base|pr}.out
```

Result
```
Base:
1956,1956,1968,1977,1979,1986,1988,1988,1988,1990,1991,1991,1993,1993,1993,1993,1994,1996,1997,1997,1997,1998,1999,2001,2001,2002,2004,2007,2007,2008,

PR (2.3% regression, due to measuring `SST_READ_MICRO` that wasn't measured before):
1993,2014,2016,2022,2024,2027,2027,2028,2028,2030,2031,2031,2032,2032,2038,2039,2042,2044,2044,2047,2047,2047,2048,2049,2050,2052,2052,2052,2053,2053,
```

Reviewed By: ajkr

Differential Revision: D45918925

Pulled By: hx235

fbshipit-source-id: 58a54560d9ebeb3a59b6d807639692614dad058a
This commit is contained in:
Hui Xiao 2023-08-08 17:26:50 -07:00 committed by Facebook GitHub Bot
parent 9c2ebcc2c3
commit 9a034801ce
83 changed files with 1127 additions and 494 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

35
db/blob/blob_file_reader.cc
View File

@ -154,11 +154,9 @@ Status BlobFileReader::ReadHeader(const RandomAccessFileReader* file_reader,
constexpr uint64_t read_offset = 0;
constexpr size_t read_size = BlobLogHeader::kSize;
// TODO: rate limit reading headers from blob files.
const Status s =
ReadFromFile(file_reader, read_options, read_offset, read_size,
statistics, &header_slice, &buf, &aligned_buf,
Env::IO_TOTAL /* rate_limiter_priority */);
statistics, &header_slice, &buf, &aligned_buf);
if (!s.ok()) {
return s;
}
@ -207,11 +205,9 @@ Status BlobFileReader::ReadFooter(const RandomAccessFileReader* file_reader,
const uint64_t read_offset = file_size - BlobLogFooter::kSize;
constexpr size_t read_size = BlobLogFooter::kSize;
// TODO: rate limit reading footers from blob files.
const Status s =
ReadFromFile(file_reader, read_options, read_offset, read_size,
statistics, &footer_slice, &buf, &aligned_buf,
Env::IO_TOTAL /* rate_limiter_priority */);
statistics, &footer_slice, &buf, &aligned_buf);
if (!s.ok()) {
return s;
}
@ -242,8 +238,7 @@ Status BlobFileReader::ReadFromFile(const RandomAccessFileReader* file_reader,
const ReadOptions& read_options,
uint64_t read_offset, size_t read_size,
Statistics* statistics, Slice* slice,
Buffer* buf, AlignedBuf* aligned_buf,
Env::IOPriority rate_limiter_priority) {
Buffer* buf, AlignedBuf* aligned_buf) {
assert(slice);
assert(buf);
assert(aligned_buf);
@ -264,13 +259,13 @@ Status BlobFileReader::ReadFromFile(const RandomAccessFileReader* file_reader,
constexpr char* scratch = nullptr;
s = file_reader->Read(io_options, read_offset, read_size, slice, scratch,
aligned_buf, rate_limiter_priority);
aligned_buf);
} else {
buf->reset(new char[read_size]);
constexpr AlignedBuf* aligned_scratch = nullptr;
s = file_reader->Read(io_options, read_offset, read_size, slice, buf->get(),
aligned_scratch, rate_limiter_priority);
aligned_scratch);
}
if (!s.ok()) {
@ -345,8 +340,7 @@ Status BlobFileReader::GetBlob(
}
prefetched = prefetch_buffer->TryReadFromCache(
io_options, file_reader_.get(), record_offset,
static_cast<size_t>(record_size), &record_slice, &s,
read_options.rate_limiter_priority, for_compaction);
static_cast<size_t>(record_size), &record_slice, &s, for_compaction);
if (!s.ok()) {
return s;
}
@ -357,10 +351,10 @@ Status BlobFileReader::GetBlob(
PERF_COUNTER_ADD(blob_read_count, 1);
PERF_COUNTER_ADD(blob_read_byte, record_size);
PERF_TIMER_GUARD(blob_read_time);
const Status s = ReadFromFile(
file_reader_.get(), read_options, record_offset,
static_cast<size_t>(record_size), statistics_, &record_slice, &buf,
&aligned_buf, read_options.rate_limiter_priority);
const Status s =
ReadFromFile(file_reader_.get(), read_options, record_offset,
static_cast<size_t>(record_size), statistics_,
&record_slice, &buf, &aligned_buf);
if (!s.ok()) {
return s;
}
@ -468,9 +462,12 @@ void BlobFileReader::MultiGetBlob(
TEST_SYNC_POINT("BlobFileReader::MultiGetBlob:ReadFromFile");
PERF_COUNTER_ADD(blob_read_count, num_blobs);
PERF_COUNTER_ADD(blob_read_byte, total_len);
s = file_reader_->MultiRead(IOOptions(), read_reqs.data(), read_reqs.size(),
direct_io ? &aligned_buf : nullptr,
read_options.rate_limiter_priority);
IOOptions opts;
s = file_reader_->PrepareIOOptions(read_options, opts);
if (s.ok()) {
s = file_reader_->MultiRead(opts, read_reqs.data(), read_reqs.size(),
direct_io ? &aligned_buf : nullptr);
}
if (!s.ok()) {
for (auto& req : read_reqs) {
req.status.PermitUncheckedError();

3
db/blob/blob_file_reader.h
View File

@ -89,8 +89,7 @@ class BlobFileReader {
const ReadOptions& read_options,
uint64_t read_offset, size_t read_size,
Statistics* statistics, Slice* slice, Buffer* buf,
AlignedBuf* aligned_buf,
Env::IOPriority rate_limiter_priority);
AlignedBuf* aligned_buf);
static Status VerifyBlob(const Slice& record_slice, const Slice& user_key,
uint64_t value_size);

5
db/blob/blob_log_sequential_reader.cc
View File

@ -29,9 +29,8 @@ Status BlobLogSequentialReader::ReadSlice(uint64_t size, Slice* slice,
StopWatch read_sw(clock_, statistics_, BLOB_DB_BLOB_FILE_READ_MICROS);
// TODO: rate limit `BlobLogSequentialReader` reads (it appears unused?)
Status s =
file_->Read(IOOptions(), next_byte_, static_cast<size_t>(size), slice,
buf, nullptr, Env::IO_TOTAL /* rate_limiter_priority */);
Status s = file_->Read(IOOptions(), next_byte_, static_cast<size_t>(size),
slice, buf, nullptr);
next_byte_ += size;
if (!s.ok()) {
return s;

21
db/convenience.cc
View File

@ -7,6 +7,7 @@
#include "rocksdb/convenience.h"
#include "db/convenience_impl.h"
#include "db/db_impl/db_impl.h"
#include "util/cast_util.h"
@ -38,6 +39,22 @@ Status VerifySstFileChecksum(const Options& options,
return VerifySstFileChecksum(options, env_options, read_options, file_path);
}
Status VerifySstFileChecksum(const Options& options,
const EnvOptions& env_options,
const ReadOptions& _read_options,
const std::string& file_path,
const SequenceNumber& largest_seqno) {
if (_read_options.io_activity != Env::IOActivity::kUnknown) {
return Status::InvalidArgument(
"Can only call VerifySstFileChecksum with `ReadOptions::io_activity` "
"is "
"`Env::IOActivity::kUnknown`");
}
ReadOptions read_options(_read_options);
return VerifySstFileChecksumInternal(options, env_options, read_options,
file_path, largest_seqno);
}
Status VerifySstFileChecksumInternal(const Options& options,
const EnvOptions& env_options,
const ReadOptions& read_options,
const std::string& file_path,
@ -68,8 +85,8 @@ Status VerifySstFileChecksum(const Options& options,
!kImmortal, false /* force_direct_prefetch */, -1 /* level */);
reader_options.largest_seqno = largest_seqno;
s = ioptions.table_factory->NewTableReader(
reader_options, std::move(file_reader), file_size, &table_reader,
false /* prefetch_index_and_filter_in_cache */);
read_options, reader_options, std::move(file_reader), file_size,
&table_reader, false /* prefetch_index_and_filter_in_cache */);
if (!s.ok()) {
return s;
}

15
db/convenience_impl.h Normal file
View File

@ -0,0 +1,15 @@
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
// This source code is licensed under both the GPLv2 (found in the
// COPYING file in the root directory) and Apache 2.0 License
// (found in the LICENSE.Apache file in the root directory).
#pragma once
#include "rocksdb/db.h"
namespace ROCKSDB_NAMESPACE {
Status VerifySstFileChecksumInternal(const Options& options,
const EnvOptions& env_options,
const ReadOptions& read_options,
const std::string& file_path,
const SequenceNumber& largest_seqno = 0);
} // namespace ROCKSDB_NAMESPACE

57
db/db_impl/compacted_db_impl.cc
View File

@ -43,18 +43,25 @@ Status CompactedDBImpl::Get(const ReadOptions& options, ColumnFamilyHandle*,
/*timestamp*/ nullptr);
}
Status CompactedDBImpl::Get(const ReadOptions& options, ColumnFamilyHandle*,
const Slice& key, PinnableSlice* value,
std::string* timestamp) {
if (options.io_activity != Env::IOActivity::kUnknown) {
Status CompactedDBImpl::Get(const ReadOptions& _read_options,
ColumnFamilyHandle*, const Slice& key,
PinnableSlice* value, std::string* timestamp) {
if (_read_options.io_activity != Env::IOActivity::kUnknown &&
_read_options.io_activity != Env::IOActivity::kGet) {
return Status::InvalidArgument(
"Cannot call Get with `ReadOptions::io_activity` != "
"`Env::IOActivity::kUnknown`");
"Can only call Get with `ReadOptions::io_activity` is "
"`Env::IOActivity::kUnknown` or `Env::IOActivity::kGet`");
}
ReadOptions read_options(_read_options);
if (read_options.io_activity == Env::IOActivity::kUnknown) {
read_options.io_activity = Env::IOActivity::kGet;
}
assert(user_comparator_);
if (options.timestamp) {
const Status s = FailIfTsMismatchCf(
DefaultColumnFamily(), *(options.timestamp), /*ts_for_read=*/true);
if (read_options.timestamp) {
const Status s =
FailIfTsMismatchCf(DefaultColumnFamily(), *(read_options.timestamp),
/*ts_for_read=*/true);
if (!s.ok()) {
return s;
}
@ -74,7 +81,7 @@ Status CompactedDBImpl::Get(const ReadOptions& options, ColumnFamilyHandle*,
GetWithTimestampReadCallback read_cb(kMaxSequenceNumber);
std::string* ts =
user_comparator_->timestamp_size() > 0 ? timestamp : nullptr;
LookupKey lkey(key, kMaxSequenceNumber, options.timestamp);
LookupKey lkey(key, kMaxSequenceNumber, read_options.timestamp);
GetContext get_context(user_comparator_, nullptr, nullptr, nullptr,
GetContext::kNotFound, lkey.user_key(), value,
/*columns=*/nullptr, ts, nullptr, nullptr, true,
@ -88,8 +95,8 @@ Status CompactedDBImpl::Get(const ReadOptions& options, ColumnFamilyHandle*,
/*b_has_ts=*/false) < 0) {
return Status::NotFound();
}
Status s = f.fd.table_reader->Get(options, lkey.internal_key(), &get_context,
nullptr);
Status s = f.fd.table_reader->Get(read_options, lkey.internal_key(),
&get_context, nullptr);
if (!s.ok() && !s.IsNotFound()) {
return s;
}
@ -106,14 +113,27 @@ std::vector<Status> CompactedDBImpl::MultiGet(
}
std::vector<Status> CompactedDBImpl::MultiGet(
const ReadOptions& options, const std::vector<ColumnFamilyHandle*>&,
const ReadOptions& _read_options, const std::vector<ColumnFamilyHandle*>&,
const std::vector<Slice>& keys, std::vector<std::string>* values,
std::vector<std::string>* timestamps) {
assert(user_comparator_);
size_t num_keys = keys.size();
if (_read_options.io_activity != Env::IOActivity::kUnknown &&
_read_options.io_activity != Env::IOActivity::kMultiGet) {
Status s = Status::InvalidArgument(
"Can only call MultiGet with `ReadOptions::io_activity` is "
"`Env::IOActivity::kUnknown` or `Env::IOActivity::kMultiGet`");
return std::vector<Status>(num_keys, s);
}
if (options.timestamp) {
Status s = FailIfTsMismatchCf(DefaultColumnFamily(), *(options.timestamp),
ReadOptions read_options(_read_options);
if (read_options.io_activity == Env::IOActivity::kUnknown) {
read_options.io_activity = Env::IOActivity::kMultiGet;
}
if (read_options.timestamp) {
Status s =
FailIfTsMismatchCf(DefaultColumnFamily(), *(read_options.timestamp),
/*ts_for_read=*/true);
if (!s.ok()) {
return std::vector<Status>(num_keys, s);
@ -136,7 +156,7 @@ std::vector<Status> CompactedDBImpl::MultiGet(
GetWithTimestampReadCallback read_cb(kMaxSequenceNumber);
autovector<TableReader*, 16> reader_list;
for (const auto& key : keys) {
LookupKey lkey(key, kMaxSequenceNumber, options.timestamp);
LookupKey lkey(key, kMaxSequenceNumber, read_options.timestamp);
const FdWithKeyRange& f = files_.files[FindFile(lkey.user_key())];
if (user_comparator_->CompareWithoutTimestamp(
key, /*a_has_ts=*/false,
@ -159,14 +179,15 @@ std::vector<Status> CompactedDBImpl::MultiGet(
if (r != nullptr) {
PinnableSlice pinnable_val;
std::string& value = (*values)[idx];
LookupKey lkey(keys[idx], kMaxSequenceNumber, options.timestamp);
LookupKey lkey(keys[idx], kMaxSequenceNumber, read_options.timestamp);
std::string* timestamp = timestamps ? &(*timestamps)[idx] : nullptr;
GetContext get_context(
user_comparator_, nullptr, nullptr, nullptr, GetContext::kNotFound,
lkey.user_key(), &pinnable_val, /*columns=*/nullptr,
user_comparator_->timestamp_size() > 0 ? timestamp : nullptr, nullptr,
nullptr, true, nullptr, nullptr, nullptr, nullptr, &read_cb);
Status s = r->Get(options, lkey.internal_key(), &get_context, nullptr);
Status s =
r->Get(read_options, lkey.internal_key(), &get_context, nullptr);
assert(static_cast<size_t>(idx) < statuses.size());
if (!s.ok() && !s.IsNotFound()) {
statuses[idx] = s;

8
db/db_impl/compacted_db_impl.h
View File

@ -30,9 +30,9 @@ class CompactedDBImpl : public DBImpl {
ColumnFamilyHandle* column_family, const Slice& key,
PinnableSlice* value) override;
Status Get(const ReadOptions& options, ColumnFamilyHandle* column_family,
const Slice& key, PinnableSlice* value,
std::string* timestamp) override;
Status Get(const ReadOptions& _read_options,
ColumnFamilyHandle* column_family, const Slice& key,
PinnableSlice* value, std::string* timestamp) override;
using DB::MultiGet;
// Note that CompactedDBImpl::MultiGet is not the optimized version of
@ -43,7 +43,7 @@ class CompactedDBImpl : public DBImpl {
const std::vector<Slice>& keys,
std::vector<std::string>* values) override;
std::vector<Status> MultiGet(const ReadOptions& options,
std::vector<Status> MultiGet(const ReadOptions& _read_options,
const std::vector<ColumnFamilyHandle*>&,
const std::vector<Slice>& keys,
std::vector<std::string>* values,

206
db/db_impl/db_impl.cc
View File

@ -28,6 +28,7 @@
#include "db/arena_wrapped_db_iter.h"
#include "db/builder.h"
#include "db/compaction/compaction_job.h"
#include "db/convenience_impl.h"
#include "db/db_info_dumper.h"
#include "db/db_iter.h"
#include "db/dbformat.h"
@ -74,7 +75,6 @@
#include "port/port.h"
#include "rocksdb/cache.h"
#include "rocksdb/compaction_filter.h"
#include "rocksdb/convenience.h"
#include "rocksdb/db.h"
#include "rocksdb/env.h"
#include "rocksdb/merge_operator.h"
@ -1922,15 +1922,43 @@ Status DBImpl::Get(const ReadOptions& read_options,
return Get(read_options, column_family, key, value, /*timestamp=*/nullptr);
}
Status DBImpl::Get(const ReadOptions& read_options,
Status DBImpl::GetImpl(const ReadOptions& read_options,
ColumnFamilyHandle* column_family, const Slice& key,
PinnableSlice* value) {
return GetImpl(read_options, column_family, key, value,
/*timestamp=*/nullptr);
}
Status DBImpl::Get(const ReadOptions& _read_options,
ColumnFamilyHandle* column_family, const Slice& key,
PinnableSlice* value, std::string* timestamp) {
assert(value != nullptr);
value->Reset();
if (_read_options.io_activity != Env::IOActivity::kUnknown &&
_read_options.io_activity != Env::IOActivity::kGet) {
return Status::InvalidArgument(
"Can only call Get with `ReadOptions::io_activity` is "
"`Env::IOActivity::kUnknown` or `Env::IOActivity::kGet`");
}
ReadOptions read_options(_read_options);
if (read_options.io_activity == Env::IOActivity::kUnknown) {
read_options.io_activity = Env::IOActivity::kGet;
}
Status s = GetImpl(read_options, column_family, key, value, timestamp);
return s;
}
Status DBImpl::GetImpl(const ReadOptions& read_options,
ColumnFamilyHandle* column_family, const Slice& key,
PinnableSlice* value, std::string* timestamp) {
GetImplOptions get_impl_options;
get_impl_options.column_family = column_family;
get_impl_options.value = value;
get_impl_options.timestamp = timestamp;
Status s = GetImpl(read_options, key, get_impl_options);
return s;
}
@ -1999,11 +2027,6 @@ Status DBImpl::GetImpl(const ReadOptions& read_options, const Slice& key,
assert(get_impl_options.column_family);
if (read_options.io_activity != Env::IOActivity::kUnknown) {
return Status::InvalidArgument(
"Cannot call Get with `ReadOptions::io_activity` != "
"`Env::IOActivity::kUnknown`");
}
if (read_options.timestamp) {
const Status s = FailIfTsMismatchCf(get_impl_options.column_family,
@ -2297,7 +2320,7 @@ std::vector<Status> DBImpl::MultiGet(
}
std::vector<Status> DBImpl::MultiGet(
const ReadOptions& read_options,
const ReadOptions& _read_options,
const std::vector<ColumnFamilyHandle*>& column_family,
const std::vector<Slice>& keys, std::vector<std::string>* values,
std::vector<std::string>* timestamps) {
@ -2309,12 +2332,30 @@ std::vector<Status> DBImpl::MultiGet(
assert(column_family.size() == num_keys);
std::vector<Status> stat_list(num_keys);
if (_read_options.io_activity != Env::IOActivity::kUnknown &&
_read_options.io_activity != Env::IOActivity::kMultiGet) {
Status s = Status::InvalidArgument(
"Can only call MultiGet with `ReadOptions::io_activity` is "
"`Env::IOActivity::kUnknown` or `Env::IOActivity::kMultiGet`");
for (size_t i = 0; i < num_keys; ++i) {
stat_list[i] = s;
}
return stat_list;
}
ReadOptions read_options(_read_options);
if (read_options.io_activity == Env::IOActivity::kUnknown) {
read_options.io_activity = Env::IOActivity::kMultiGet;
}
bool should_fail = false;
for (size_t i = 0; i < num_keys; ++i) {
assert(column_family[i]);
if (read_options.timestamp) {
stat_list[i] = FailIfTsMismatchCf(
column_family[i], *(read_options.timestamp), /*ts_for_read=*/true);
stat_list[i] =
FailIfTsMismatchCf(column_family[i], *(read_options.timestamp),
/*ts_for_read=*/true);
if (!stat_list[i].ok()) {
should_fail = true;
}
@ -2627,10 +2668,26 @@ void DBImpl::MultiGet(const ReadOptions& read_options, const size_t num_keys,
/* timestamps */ nullptr, statuses, sorted_input);
}
void DBImpl::MultiGet(const ReadOptions& read_options, const size_t num_keys,
void DBImpl::MultiGet(const ReadOptions& _read_options, const size_t num_keys,
ColumnFamilyHandle** column_families, const Slice* keys,
PinnableSlice* values, std::string* timestamps,
Status* statuses, const bool sorted_input) {
if (_read_options.io_activity != Env::IOActivity::kUnknown &&
_read_options.io_activity != Env::IOActivity::kMultiGet) {
Status s = Status::InvalidArgument(
"Can only call MultiGet with `ReadOptions::io_activity` is "
"`Env::IOActivity::kUnknown` or `Env::IOActivity::kMultiGet`");
for (size_t i = 0; i < num_keys; ++i) {
if (statuses[i].ok()) {
statuses[i] = s;
}
}
return;
}
ReadOptions read_options(_read_options);
if (read_options.io_activity == Env::IOActivity::kUnknown) {
read_options.io_activity = Env::IOActivity::kMultiGet;
}
MultiGetCommon(read_options, num_keys, column_families, keys, values,
/* columns */ nullptr, timestamps, statuses, sorted_input);
}
@ -2645,7 +2702,6 @@ void DBImpl::MultiGetCommon(const ReadOptions& read_options,
if (num_keys == 0) {
return;
}
bool should_fail = false;
for (size_t i = 0; i < num_keys; ++i) {
ColumnFamilyHandle* cfh = column_families[i];
@ -2828,11 +2884,28 @@ void DBImpl::MultiGet(const ReadOptions& read_options,
/* timestamps */ nullptr, statuses, sorted_input);
}
void DBImpl::MultiGet(const ReadOptions& read_options,
void DBImpl::MultiGet(const ReadOptions& _read_options,
ColumnFamilyHandle* column_family, const size_t num_keys,
const Slice* keys, PinnableSlice* values,
std::string* timestamps, Status* statuses,
const bool sorted_input) {
if (_read_options.io_activity != Env::IOActivity::kUnknown &&
_read_options.io_activity != Env::IOActivity::kMultiGet) {
Status s = Status::InvalidArgument(
"Can only call MultiGet with `ReadOptions::io_activity` is "
"`Env::IOActivity::kUnknown` or `Env::IOActivity::kMultiGet`");
for (size_t i = 0; i < num_keys; ++i) {
if (statuses[i].ok()) {
statuses[i] = s;
}
}
return;
}
ReadOptions read_options(_read_options);
if (read_options.io_activity == Env::IOActivity::kUnknown) {
read_options.io_activity = Env::IOActivity::kMultiGet;
}
MultiGetCommon(read_options, column_family, num_keys, keys, values,
/* columns */ nullptr, timestamps, statuses, sorted_input);
}
@ -2881,9 +2954,20 @@ void DBImpl::MultiGetCommon(const ReadOptions& read_options,
}
void DBImpl::MultiGetWithCallback(
const ReadOptions& read_options, ColumnFamilyHandle* column_family,
const ReadOptions& _read_options, ColumnFamilyHandle* column_family,
ReadCallback* callback,
autovector<KeyContext*, MultiGetContext::MAX_BATCH_SIZE>* sorted_keys) {
if (_read_options.io_activity != Env::IOActivity::kUnknown &&
_read_options.io_activity != Env::IOActivity::kMultiGet) {
assert(false);
return;
}
ReadOptions read_options(_read_options);
if (read_options.io_activity == Env::IOActivity::kUnknown) {
read_options.io_activity = Env::IOActivity::kMultiGet;
}
std::array<MultiGetColumnFamilyData, 1> multiget_cf_data;
multiget_cf_data[0] = MultiGetColumnFamilyData(column_family, nullptr);
std::function<MultiGetColumnFamilyData*(
@ -2954,11 +3038,6 @@ Status DBImpl::MultiGetImpl(
autovector<KeyContext*, MultiGetContext::MAX_BATCH_SIZE>* sorted_keys,
SuperVersion* super_version, SequenceNumber snapshot,
ReadCallback* callback) {
if (read_options.io_activity != Env::IOActivity::kUnknown) {
return Status::InvalidArgument(
"Cannot call MultiGet with `ReadOptions::io_activity` != "
"`Env::IOActivity::kUnknown`");
}
PERF_CPU_TIMER_GUARD(get_cpu_nanos, immutable_db_options_.clock);
StopWatch sw(immutable_db_options_.clock, stats_, DB_MULTIGET);
@ -3383,8 +3462,19 @@ bool DBImpl::KeyMayExist(const ReadOptions& read_options,
return s.ok() || s.IsIncomplete();
}
Iterator* DBImpl::NewIterator(const ReadOptions& read_options,
Iterator* DBImpl::NewIterator(const ReadOptions& _read_options,
ColumnFamilyHandle* column_family) {
if (_read_options.io_activity != Env::IOActivity::kUnknown &&
_read_options.io_activity != Env::IOActivity::kDBIterator) {
return NewErrorIterator(Status::InvalidArgument(
"Can only call NewIterator with `ReadOptions::io_activity` is "
"`Env::IOActivity::kUnknown` or `Env::IOActivity::kDBIterator`"));
}
ReadOptions read_options(_read_options);
if (read_options.io_activity == Env::IOActivity::kUnknown) {
read_options.io_activity = Env::IOActivity::kDBIterator;
}
if (read_options.managed) {
return NewErrorIterator(
Status::NotSupported("Managed iterator is not supported anymore."));
@ -3394,17 +3484,12 @@ Iterator* DBImpl::NewIterator(const ReadOptions& read_options,
return NewErrorIterator(Status::NotSupported(
"ReadTier::kPersistedData is not yet supported in iterators."));
}
if (read_options.io_activity != Env::IOActivity::kUnknown) {
return NewErrorIterator(Status::InvalidArgument(
"Cannot call NewIterator with `ReadOptions::io_activity` != "
"`Env::IOActivity::kUnknown`"));
}
assert(column_family);
if (read_options.timestamp) {
const Status s = FailIfTsMismatchCf(
column_family, *(read_options.timestamp), /*ts_for_read=*/true);
const Status s =
FailIfTsMismatchCf(column_family, *(read_options.timestamp),
/*ts_for_read=*/true);
if (!s.ok()) {
return NewErrorIterator(s);
}
@ -3524,9 +3609,19 @@ ArenaWrappedDBIter* DBImpl::NewIteratorImpl(const ReadOptions& read_options,
}
Status DBImpl::NewIterators(
const ReadOptions& read_options,
const ReadOptions& _read_options,
const std::vector<ColumnFamilyHandle*>& column_families,
std::vector<Iterator*>* iterators) {
if (_read_options.io_activity != Env::IOActivity::kUnknown &&
_read_options.io_activity != Env::IOActivity::kDBIterator) {
return Status::InvalidArgument(
"Can only call NewIterators with `ReadOptions::io_activity` is "
"`Env::IOActivity::kUnknown` or `Env::IOActivity::kDBIterator`");
}
ReadOptions read_options(_read_options);
if (read_options.io_activity == Env::IOActivity::kUnknown) {
read_options.io_activity = Env::IOActivity::kDBIterator;
}
if (read_options.managed) {
return Status::NotSupported("Managed iterator is not supported anymore.");
}
@ -3534,11 +3629,6 @@ Status DBImpl::NewIterators(
return Status::NotSupported(
"ReadTier::kPersistedData is not yet supported in iterators.");
}
if (read_options.io_activity != Env::IOActivity::kUnknown) {
return Status::InvalidArgument(
"Cannot call NewIterators with `ReadOptions::io_activity` != "
"`Env::IOActivity::kUnknown`");
}
if (read_options.timestamp) {
for (auto* cf : column_families) {
@ -5793,12 +5883,35 @@ Status DBImpl::ClipColumnFamily(ColumnFamilyHandle* column_family,
return status;
}
Status DBImpl::VerifyFileChecksums(const ReadOptions& read_options) {
return VerifyChecksumInternal(read_options, /*use_file_checksum=*/true);
Status DBImpl::VerifyFileChecksums(const ReadOptions& _read_options) {
if (_read_options.io_activity != Env::IOActivity::kUnknown &&
_read_options.io_activity != Env::IOActivity::kVerifyFileChecksums) {
return Status::InvalidArgument(
"Can only call VerifyFileChecksums with `ReadOptions::io_activity` is "
"`Env::IOActivity::kUnknown` or "
"`Env::IOActivity::kVerifyFileChecksums`");
}
ReadOptions read_options(_read_options);
if (read_options.io_activity == Env::IOActivity::kUnknown) {
read_options.io_activity = Env::IOActivity::kVerifyFileChecksums;
}
return VerifyChecksumInternal(read_options,
/*use_file_checksum=*/true);
}
Status DBImpl::VerifyChecksum(const ReadOptions& read_options) {
return VerifyChecksumInternal(read_options, /*use_file_checksum=*/false);
Status DBImpl::VerifyChecksum(const ReadOptions& _read_options) {
if (_read_options.io_activity != Env::IOActivity::kUnknown &&
_read_options.io_activity != Env::IOActivity::kVerifyDBChecksum) {
return Status::InvalidArgument(
"Can only call VerifyChecksum with `ReadOptions::io_activity` is "
"`Env::IOActivity::kUnknown` or `Env::IOActivity::kVerifyDBChecksum`");
}
ReadOptions read_options(_read_options);
if (read_options.io_activity == Env::IOActivity::kUnknown) {
read_options.io_activity = Env::IOActivity::kVerifyDBChecksum;
}
return VerifyChecksumInternal(read_options,
/*use_file_checksum=*/false);
}
Status DBImpl::VerifyChecksumInternal(const ReadOptions& read_options,
@ -5810,12 +5923,6 @@ Status DBImpl::VerifyChecksumInternal(const ReadOptions& read_options,
Status s;
if (read_options.io_activity != Env::IOActivity::kUnknown) {
s = Status::InvalidArgument(
"Cannot verify file checksum with `ReadOptions::io_activity` != "
"`Env::IOActivity::kUnknown`");
return s;
}
if (use_file_checksum) {
FileChecksumGenFactory* const file_checksum_gen_factory =
immutable_db_options_.file_checksum_gen_factory.get();
@ -5867,7 +5974,7 @@ Status DBImpl::VerifyChecksumInternal(const ReadOptions& read_options,
fmeta->file_checksum_func_name, fname,
read_options);
} else {
s = ROCKSDB_NAMESPACE::VerifySstFileChecksum(
s = ROCKSDB_NAMESPACE::VerifySstFileChecksumInternal(
opts, file_options_, read_options, fname, fd.largest_seqno);
}
RecordTick(stats_, VERIFY_CHECKSUM_READ_BYTES,
@ -5930,12 +6037,6 @@ Status DBImpl::VerifyFullFileChecksum(const std::string& file_checksum_expected,
const std::string& func_name_expected,
const std::string& fname,
const ReadOptions& read_options) {
if (read_options.io_activity != Env::IOActivity::kUnknown) {
return Status::InvalidArgument(
"Cannot call VerifyChecksum with `ReadOptions::io_activity` != "
"`Env::IOActivity::kUnknown`");
}
Status s;
if (file_checksum_expected == kUnknownFileChecksum) {
return s;
@ -5946,8 +6047,7 @@ Status DBImpl::VerifyFullFileChecksum(const std::string& file_checksum_expected,
fs_.get(), fname, immutable_db_options_.file_checksum_gen_factory.get(),
func_name_expected, &file_checksum, &func_name,
read_options.readahead_size, immutable_db_options_.allow_mmap_reads,
io_tracer_, immutable_db_options_.rate_limiter.get(),
read_options.rate_limiter_priority);
io_tracer_, immutable_db_options_.rate_limiter.get(), read_options);
if (s.ok()) {
assert(func_name_expected == func_name);
if (file_checksum != file_checksum_expected) {

25
db/db_impl/db_impl.h
View File

@ -234,7 +234,7 @@ class DBImpl : public DB {
virtual Status Get(const ReadOptions& options,
ColumnFamilyHandle* column_family, const Slice& key,
PinnableSlice* value) override;
virtual Status Get(const ReadOptions& options,
virtual Status Get(const ReadOptions& _read_options,
ColumnFamilyHandle* column_family, const Slice& key,
PinnableSlice* value, std::string* timestamp) override;
@ -265,7 +265,7 @@ class DBImpl : public DB {
const std::vector<Slice>& keys,
std::vector<std::string>* values) override;
virtual std::vector<Status> MultiGet(
const ReadOptions& options,
const ReadOptions& _read_options,
const std::vector<ColumnFamilyHandle*>& column_family,
const std::vector<Slice>& keys, std::vector<std::string>* values,
std::vector<std::string>* timestamps) override;
@ -280,8 +280,9 @@ class DBImpl : public DB {
void MultiGet(const ReadOptions& options, ColumnFamilyHandle* column_family,
const size_t num_keys, const Slice* keys, PinnableSlice* values,
Status* statuses, const bool sorted_input = false) override;
void MultiGet(const ReadOptions& options, ColumnFamilyHandle* column_family,
const size_t num_keys, const Slice* keys, PinnableSlice* values,
void MultiGet(const ReadOptions& _read_options,
ColumnFamilyHandle* column_family, const size_t num_keys,
const Slice* keys, PinnableSlice* values,
std::string* timestamps, Status* statuses,
const bool sorted_input = false) override;
@ -289,13 +290,13 @@ class DBImpl : public DB {
ColumnFamilyHandle** column_families, const Slice* keys,
PinnableSlice* values, Status* statuses,
const bool sorted_input = false) override;
void MultiGet(const ReadOptions& options, const size_t num_keys,
void MultiGet(const ReadOptions& _read_options, const size_t num_keys,
ColumnFamilyHandle** column_families, const Slice* keys,
PinnableSlice* values, std::string* timestamps,
Status* statuses, const bool sorted_input = false) override;
void MultiGetWithCallback(
const ReadOptions& options, ColumnFamilyHandle* column_family,
const ReadOptions& _read_options, ColumnFamilyHandle* column_family,
ReadCallback* callback,
autovector<KeyContext*, MultiGetContext::MAX_BATCH_SIZE>* sorted_keys);
@ -336,10 +337,10 @@ class DBImpl : public DB {
bool* value_found = nullptr) override;
using DB::NewIterator;
virtual Iterator* NewIterator(const ReadOptions& options,
virtual Iterator* NewIterator(const ReadOptions& _read_options,
ColumnFamilyHandle* column_family) override;
virtual Status NewIterators(
const ReadOptions& options,
const ReadOptions& _read_options,
const std::vector<ColumnFamilyHandle*>& column_families,
std::vector<Iterator*>* iterators) override;
@ -627,6 +628,14 @@ class DBImpl : public DB {
int* number_of_operands = nullptr;
};
Status GetImpl(const ReadOptions& read_options,
ColumnFamilyHandle* column_family, const Slice& key,
PinnableSlice* value);
Status GetImpl(const ReadOptions& read_options,
ColumnFamilyHandle* column_family, const Slice& key,
PinnableSlice* value, std::string* timestamp);
// Function that Get and KeyMayExist call with no_io true or false
// Note: 'value_found' from KeyMayExist propagates here
// This function is also called by GetMergeOperands

36
db/db_impl/db_impl_readonly.cc
View File

@ -36,14 +36,19 @@ Status DBImplReadOnly::Get(const ReadOptions& read_options,
/*timestamp*/ nullptr);
}
Status DBImplReadOnly::Get(const ReadOptions& read_options,
Status DBImplReadOnly::Get(const ReadOptions& _read_options,
ColumnFamilyHandle* column_family, const Slice& key,
PinnableSlice* pinnable_val,
std::string* timestamp) {
if (read_options.io_activity != Env::IOActivity::kUnknown) {
if (_read_options.io_activity != Env::IOActivity::kUnknown &&
_read_options.io_activity != Env::IOActivity::kGet) {
return Status::InvalidArgument(
"Cannot call Get with `ReadOptions::io_activity` != "
"`Env::IOActivity::kUnknown`");
"Can only call Get with `ReadOptions::io_activity` is "
"`Env::IOActivity::kUnknown` or `Env::IOActivity::kGet`");
}
ReadOptions read_options(_read_options);
if (read_options.io_activity == Env::IOActivity::kUnknown) {
read_options.io_activity = Env::IOActivity::kGet;
}
assert(pinnable_val != nullptr);
PERF_CPU_TIMER_GUARD(get_cpu_nanos, immutable_db_options_.clock);
@ -52,8 +57,9 @@ Status DBImplReadOnly::Get(const ReadOptions& read_options,
assert(column_family);
if (read_options.timestamp) {
const Status s = FailIfTsMismatchCf(
column_family, *(read_options.timestamp), /*ts_for_read=*/true);
const Status s =
FailIfTsMismatchCf(column_family, *(read_options.timestamp),
/*ts_for_read=*/true);
if (!s.ok()) {
return s;
}
@ -116,17 +122,23 @@ Status DBImplReadOnly::Get(const ReadOptions& read_options,
return s;
}
Iterator* DBImplReadOnly::NewIterator(const ReadOptions& read_options,
Iterator* DBImplReadOnly::NewIterator(const ReadOptions& _read_options,
ColumnFamilyHandle* column_family) {
if (read_options.io_activity != Env::IOActivity::kUnknown) {
if (_read_options.io_activity != Env::IOActivity::kUnknown &&
_read_options.io_activity != Env::IOActivity::kDBIterator) {
return NewErrorIterator(Status::InvalidArgument(
"Cannot call NewIterator with `ReadOptions::io_activity` != "
"`Env::IOActivity::kUnknown`"));
"Can only call NewIterator with `ReadOptions::io_activity` is "
"`Env::IOActivity::kUnknown` or `Env::IOActivity::kDBIterator`"));
}
ReadOptions read_options(_read_options);
if (read_options.io_activity == Env::IOActivity::kUnknown) {
read_options.io_activity = Env::IOActivity::kDBIterator;
}
assert(column_family);
if (read_options.timestamp) {
const Status s = FailIfTsMismatchCf(
column_family, *(read_options.timestamp), /*ts_for_read=*/true);
const Status s =
FailIfTsMismatchCf(column_family, *(read_options.timestamp),
/*ts_for_read=*/true);
if (!s.ok()) {
return NewErrorIterator(s);
}

9
db/db_impl/db_impl_readonly.h
View File

@ -28,14 +28,14 @@ class DBImplReadOnly : public DBImpl {
virtual Status Get(const ReadOptions& options,
ColumnFamilyHandle* column_family, const Slice& key,
PinnableSlice* value) override;
Status Get(const ReadOptions& options, ColumnFamilyHandle* column_family,
const Slice& key, PinnableSlice* value,
std::string* timestamp) override;
Status Get(const ReadOptions& _read_options,
ColumnFamilyHandle* column_family, const Slice& key,
PinnableSlice* value, std::string* timestamp) override;
// TODO: Implement ReadOnly MultiGet?
using DBImpl::NewIterator;
virtual Iterator* NewIterator(const ReadOptions&,
virtual Iterator* NewIterator(const ReadOptions& _read_options,
ColumnFamilyHandle* column_family) override;
virtual Status NewIterators(
@ -179,4 +179,3 @@ class DBImplReadOnly : public DBImpl {
friend class DB;
};
} // namespace ROCKSDB_NAMESPACE

68
db/db_impl/db_impl_secondary.cc
View File

@ -340,16 +340,36 @@ Status DBImplSecondary::RecoverLogFiles(
}
// Implementation of the DB interface
Status DBImplSecondary::Get(const ReadOptions& read_options,
Status DBImplSecondary::Get(const ReadOptions& _read_options,
ColumnFamilyHandle* column_family, const Slice& key,
PinnableSlice* value) {
if (_read_options.io_activity != Env::IOActivity::kUnknown &&
_read_options.io_activity != Env::IOActivity::kGet) {
return Status::InvalidArgument(
"Can only call Get with `ReadOptions::io_activity` is "
"`Env::IOActivity::kUnknown` or `Env::IOActivity::kGet`");
}
ReadOptions read_options(_read_options);
if (read_options.io_activity == Env::IOActivity::kUnknown) {
read_options.io_activity = Env::IOActivity::kGet;
}
return GetImpl(read_options, column_family, key, value,
/*timestamp*/ nullptr);
}
Status DBImplSecondary::Get(const ReadOptions& read_options,
Status DBImplSecondary::Get(const ReadOptions& _read_options,
ColumnFamilyHandle* column_family, const Slice& key,
PinnableSlice* value, std::string* timestamp) {
if (_read_options.io_activity != Env::IOActivity::kUnknown &&
_read_options.io_activity != Env::IOActivity::kGet) {
return Status::InvalidArgument(
"Can only call Get with `ReadOptions::io_activity` is "
"`Env::IOActivity::kUnknown` or `Env::IOActivity::kGet`");
}
ReadOptions read_options(_read_options);
if (read_options.io_activity == Env::IOActivity::kUnknown) {
read_options.io_activity = Env::IOActivity::kGet;
}
return GetImpl(read_options, column_family, key, value, timestamp);
}
@ -357,11 +377,6 @@ Status DBImplSecondary::GetImpl(const ReadOptions& read_options,
ColumnFamilyHandle* column_family,
const Slice& key, PinnableSlice* pinnable_val,
std::string* timestamp) {
if (read_options.io_activity != Env::IOActivity::kUnknown) {
return Status::InvalidArgument(
"Cannot call Get with `ReadOptions::io_activity` != "
"`Env::IOActivity::kUnknown`");
}
assert(pinnable_val != nullptr);
PERF_CPU_TIMER_GUARD(get_cpu_nanos, immutable_db_options_.clock);
StopWatch sw(immutable_db_options_.clock, stats_, DB_GET);
@ -452,8 +467,18 @@ Status DBImplSecondary::GetImpl(const ReadOptions& read_options,
return s;
}
Iterator* DBImplSecondary::NewIterator(const ReadOptions& read_options,
Iterator* DBImplSecondary::NewIterator(const ReadOptions& _read_options,
ColumnFamilyHandle* column_family) {
if (_read_options.io_activity != Env::IOActivity::kUnknown &&
_read_options.io_activity != Env::IOActivity::kDBIterator) {
return NewErrorIterator(Status::InvalidArgument(
"Can only call NewIterator with `ReadOptions::io_activity` is "
"`Env::IOActivity::kUnknown` or `Env::IOActivity::kDBIterator`"));
}
ReadOptions read_options(_read_options);
if (read_options.io_activity == Env::IOActivity::kUnknown) {
read_options.io_activity = Env::IOActivity::kDBIterator;
}
if (read_options.managed) {
return NewErrorIterator(
Status::NotSupported("Managed iterator is not supported anymore."));
@ -462,16 +487,12 @@ Iterator* DBImplSecondary::NewIterator(const ReadOptions& read_options,
return NewErrorIterator(Status::NotSupported(
"ReadTier::kPersistedData is not yet supported in iterators."));
}
if (read_options.io_activity != Env::IOActivity::kUnknown) {
return NewErrorIterator(Status::InvalidArgument(
"Cannot call NewIterator with `ReadOptions::io_activity` != "
"`Env::IOActivity::kUnknown`"));
}
assert(column_family);
if (read_options.timestamp) {
const Status s = FailIfTsMismatchCf(
column_family, *(read_options.timestamp), /*ts_for_read=*/true);
const Status s =
FailIfTsMismatchCf(column_family, *(read_options.timestamp),
/*ts_for_read=*/true);
if (!s.ok()) {
return NewErrorIterator(s);
}
@ -523,9 +544,19 @@ ArenaWrappedDBIter* DBImplSecondary::NewIteratorImpl(
}
Status DBImplSecondary::NewIterators(
const ReadOptions& read_options,
const ReadOptions& _read_options,
const std::vector<ColumnFamilyHandle*>& column_families,
std::vector<Iterator*>* iterators) {
if (_read_options.io_activity != Env::IOActivity::kUnknown &&
_read_options.io_activity != Env::IOActivity::kDBIterator) {
return Status::InvalidArgument(
"Can only call NewIterators with `ReadOptions::io_activity` is "
"`Env::IOActivity::kUnknown` or `Env::IOActivity::kDBIterator`");
}
ReadOptions read_options(_read_options);
if (read_options.io_activity == Env::IOActivity::kUnknown) {
read_options.io_activity = Env::IOActivity::kDBIterator;
}
if (read_options.managed) {
return Status::NotSupported("Managed iterator is not supported anymore.");
}
@ -533,11 +564,6 @@ Status DBImplSecondary::NewIterators(
return Status::NotSupported(
"ReadTier::kPersistedData is not yet supported in iterators.");
}
if (read_options.io_activity != Env::IOActivity::kUnknown) {
return Status::InvalidArgument(
"Cannot call NewIterators with `ReadOptions::io_activity` != "
"`Env::IOActivity::kUnknown`");
}
ReadCallback* read_callback = nullptr; // No read callback provided.
if (iterators == nullptr) {
return Status::InvalidArgument("iterators not allowed to be nullptr");

16
db/db_impl/db_impl_secondary.h
View File

@ -96,12 +96,13 @@ class DBImplSecondary : public DBImpl {
// workaround, the secondaries can be opened with `max_open_files=-1` so that
// it eagerly keeps all talbe files open and is able to access the contents of
// deleted files via prior open fd.
Status Get(const ReadOptions& options, ColumnFamilyHandle* column_family,
const Slice& key, PinnableSlice* value) override;
Status Get(const ReadOptions& _read_options,
ColumnFamilyHandle* column_family, const Slice& key,
PinnableSlice* value) override;
Status Get(const ReadOptions& options, ColumnFamilyHandle* column_family,
const Slice& key, PinnableSlice* value,
std::string* timestamp) override;
Status Get(const ReadOptions& _read_options,
ColumnFamilyHandle* column_family, const Slice& key,
PinnableSlice* value, std::string* timestamp) override;
Status GetImpl(const ReadOptions& options, ColumnFamilyHandle* column_family,
const Slice& key, PinnableSlice* value,
@ -117,7 +118,7 @@ class DBImplSecondary : public DBImpl {
// deleted. As a partial hacky workaround, the secondaries can be opened with
// `max_open_files=-1` so that it eagerly keeps all talbe files open and is
// able to access the contents of deleted files via prior open fd.
Iterator* NewIterator(const ReadOptions&,
Iterator* NewIterator(const ReadOptions& _read_options,
ColumnFamilyHandle* column_family) override;
ArenaWrappedDBIter* NewIteratorImpl(const ReadOptions& read_options,
@ -127,7 +128,7 @@ class DBImplSecondary : public DBImpl {
bool expose_blob_index = false,
bool allow_refresh = true);
Status NewIterators(const ReadOptions& options,
Status NewIterators(const ReadOptions& _read_options,
const std::vector<ColumnFamilyHandle*>& column_families,
std::vector<Iterator*>* iterators) override;
@ -324,4 +325,3 @@ class DBImplSecondary : public DBImpl {
};
} // namespace ROCKSDB_NAMESPACE

4
db/db_iter.cc
View File

@ -77,6 +77,7 @@ DBIter::DBIter(Env* _env, const ReadOptions& read_options,
expose_blob_index_(expose_blob_index),
is_blob_(false),
arena_mode_(arena_mode),
io_activity_(read_options.io_activity),
db_impl_(db_impl),
cfd_(cfd),
timestamp_ub_(read_options.timestamp),
@ -196,12 +197,11 @@ bool DBIter::SetBlobValueIfNeeded(const Slice& user_key,
// TODO: consider moving ReadOptions from ArenaWrappedDBIter to DBIter to
// avoid having to copy options back and forth.
// TODO: plumb Env::IOActivity
ReadOptions read_options;
read_options.read_tier = read_tier_;
read_options.fill_cache = fill_cache_;
read_options.verify_checksums = verify_checksums_;
read_options.io_activity = io_activity_;
constexpr FilePrefetchBuffer* prefetch_buffer = nullptr;
constexpr uint64_t* bytes_read = nullptr;

1
db/db_iter.h
View File

@ -384,6 +384,7 @@ class DBIter final : public Iterator {
bool expose_blob_index_;
bool is_blob_;
bool arena_mode_;
const Env::IOActivity io_activity_;
// List of operands for merge operator.
MergeContext merge_context_;
LocalStatistics local_stats_;

15
db/db_rate_limiter_test.cc
View File

@ -235,9 +235,18 @@ TEST_P(DBRateLimiterOnReadTest, VerifyChecksum) {
ASSERT_EQ(0, options_.rate_limiter->GetTotalRequests(Env::IO_USER));
ASSERT_OK(db_->VerifyChecksum(GetReadOptions()));
// There are 3 reads per file: ReadMetaIndexBlock,
// VerifyChecksumInMetaBlocks, VerifyChecksumInBlocks
int expected = kNumFiles * 3;
// In BufferedIO,
// there are 7 reads per file, each of which will be rate-limited.
// During open: read footer, meta index block, properties block, index block.
// During actual checksum verification: read meta index block, verify checksum
// in meta blocks and verify checksum in file blocks.
//
// In DirectIO, where we support tail prefetching, during table open, we only
// do 1 read instead of 4 as described above. Actual checksum verification
// reads stay the same.
int num_read_per_file = (!use_direct_io_) ? 7 : 4;
int expected = kNumFiles * num_read_per_file;
ASSERT_EQ(expected, options_.rate_limiter->GetTotalRequests(Env::IO_USER));
}

9
db/external_sst_file_ingestion_job.cc
View File

@ -217,6 +217,8 @@ Status ExternalSstFileIngestionJob::Prepare(
std::string requested_checksum_func_name;
// TODO: rate limit file reads for checksum calculation during file
// ingestion.
// TODO: plumb Env::IOActivity
ReadOptions ro;
IOStatus io_s = GenerateOneFileChecksum(
fs_.get(), files_to_ingest_[i].internal_file_path,
db_options_.file_checksum_gen_factory.get(),
@ -224,8 +226,7 @@ Status ExternalSstFileIngestionJob::Prepare(
&generated_checksum_func_name,
ingestion_options_.verify_checksums_readahead_size,
db_options_.allow_mmap_reads, io_tracer_,
db_options_.rate_limiter.get(),
Env::IO_TOTAL /* rate_limiter_priority */);
db_options_.rate_limiter.get(), ro);
if (!io_s.ok()) {
status = io_s;
ROCKS_LOG_WARN(db_options_.info_log,
@ -1058,13 +1059,15 @@ IOStatus ExternalSstFileIngestionJob::GenerateChecksumForIngestedFile(
std::string file_checksum_func_name;
std::string requested_checksum_func_name;
// TODO: rate limit file reads for checksum calculation during file ingestion.
// TODO: plumb Env::IOActivity
ReadOptions ro;
IOStatus io_s = GenerateOneFileChecksum(
fs_.get(), file_to_ingest->internal_file_path,
db_options_.file_checksum_gen_factory.get(), requested_checksum_func_name,
&file_checksum, &file_checksum_func_name,
ingestion_options_.verify_checksums_readahead_size,
db_options_.allow_mmap_reads, io_tracer_, db_options_.rate_limiter.get(),
Env::IO_TOTAL /* rate_limiter_priority */);
ro);
if (!io_s.ok()) {
return io_s;
}

1
db_stress_tool/db_stress_common.h
View File

@ -248,6 +248,7 @@ DECLARE_bool(avoid_flush_during_recovery);
DECLARE_uint64(max_write_batch_group_size_bytes);
DECLARE_bool(level_compaction_dynamic_level_bytes);
DECLARE_int32(verify_checksum_one_in);
DECLARE_int32(verify_file_checksums_one_in);
DECLARE_int32(verify_db_one_in);
DECLARE_int32(continuous_verification_interval);
DECLARE_int32(get_property_one_in);

2
db_stress_tool/db_stress_driver.cc
View File

@ -14,6 +14,7 @@
namespace ROCKSDB_NAMESPACE {
void ThreadBody(void* v) {
ThreadStatusUtil::RegisterThread(db_stress_env, ThreadStatus::USER);
ThreadState* thread = reinterpret_cast<ThreadState*>(v);
SharedState* shared = thread->shared;
@ -54,6 +55,7 @@ void ThreadBody(void* v) {
shared->GetCondVar()->SignalAll();
}
}
ThreadStatusUtil::UnregisterThread();
}
bool RunStressTestImpl(SharedState* shared) {
SystemClock* clock = db_stress_env->GetSystemClock().get();

42
db_stress_tool/db_stress_env_wrapper.h
View File

@ -32,6 +32,48 @@ class DbStressRandomAccessFileWrapper : public FSRandomAccessFileOwnerWrapper {
#endif
return target()->Read(offset, n, options, result, scratch, dbg);
}
IOStatus MultiRead(FSReadRequest* reqs, size_t num_reqs,
const IOOptions& options, IODebugContext* dbg) override {
#ifndef NDEBUG
const ThreadStatus::OperationType thread_op =
ThreadStatusUtil::GetThreadOperation();
Env::IOActivity io_activity =
ThreadStatusUtil::TEST_GetExpectedIOActivity(thread_op);
assert(io_activity == Env::IOActivity::kUnknown ||
io_activity == options.io_activity);
#endif
return target()->MultiRead(reqs, num_reqs, options, dbg);
}
IOStatus Prefetch(uint64_t offset, size_t n, const IOOptions& options,
IODebugContext* dbg) override {
#ifndef NDEBUG
const ThreadStatus::OperationType thread_op =
ThreadStatusUtil::GetThreadOperation();
Env::IOActivity io_activity =
ThreadStatusUtil::TEST_GetExpectedIOActivity(thread_op);
assert(io_activity == Env::IOActivity::kUnknown ||
io_activity == options.io_activity);
#endif
return target()->Prefetch(offset, n, options, dbg);
}
IOStatus ReadAsync(FSReadRequest& req, const IOOptions& options,
std::function<void(const FSReadRequest&, void*)> cb,
void* cb_arg, void** io_handle, IOHandleDeleter* del_fn,
IODebugContext* dbg) override {
#ifndef NDEBUG
const ThreadStatus::OperationType thread_op =
ThreadStatusUtil::GetThreadOperation();
Env::IOActivity io_activity =
ThreadStatusUtil::TEST_GetExpectedIOActivity(thread_op);
assert(io_activity == Env::IOActivity::kUnknown ||
io_activity == options.io_activity);
#endif
return target()->ReadAsync(req, options, cb, cb_arg, io_handle, del_fn,
dbg);
}
};
class DbStressFSWrapper : public FileSystemWrapper {

7
db_stress_tool/db_stress_gflags.cc
View File

@ -929,6 +929,13 @@ DEFINE_int32(verify_checksum_one_in, 0,
" checksum verification of all the files in the database once for"
" every N ops on average. 0 indicates that calls to"
" VerifyChecksum() are disabled.");
DEFINE_int32(verify_file_checksums_one_in, 0,
"If non-zero, then DB::VerifyFileChecksums() will be called to do"
" checksum verification of all the files in the database once for"
" every N ops on average. 0 indicates that calls to"
" VerifyFileChecksums() are disabled.");
DEFINE_int32(verify_db_one_in, 0,
"If non-zero, call VerifyDb() once for every N ops. 0 indicates "
"that VerifyDb() will not be called in OperateDb(). Note that "

32
db_stress_tool/db_stress_test_base.cc
View File

@ -929,12 +929,28 @@ void StressTest::OperateDb(ThreadState* thread) {
}
if (thread->rand.OneInOpt(FLAGS_verify_checksum_one_in)) {
ThreadStatusUtil::SetEnableTracking(FLAGS_enable_thread_tracking);
ThreadStatusUtil::SetThreadOperation(
ThreadStatus::OperationType::OP_VERIFY_DB_CHECKSUM);
Status status = db_->VerifyChecksum();
ThreadStatusUtil::ResetThreadStatus();
if (!status.ok()) {
VerificationAbort(shared, "VerifyChecksum status not OK", status);
}
}
if (thread->rand.OneInOpt(FLAGS_verify_file_checksums_one_in)) {
ThreadStatusUtil::SetEnableTracking(FLAGS_enable_thread_tracking);
ThreadStatusUtil::SetThreadOperation(
ThreadStatus::OperationType::OP_VERIFY_FILE_CHECKSUMS);
Status status = db_->VerifyFileChecksums(read_opts);
ThreadStatusUtil::ResetThreadStatus();
if (!status.ok()) {
VerificationAbort(shared, "VerifyFileChecksums status not OK",
status);
}
}
if (thread->rand.OneInOpt(FLAGS_get_property_one_in)) {
TestGetProperty(thread);
}
@ -1034,10 +1050,18 @@ void StressTest::OperateDb(ThreadState* thread) {
// If its the last iteration, ensure that multiget_batch_size is 1
multiget_batch_size = std::max(multiget_batch_size, 1);
rand_keys = GenerateNKeys(thread, multiget_batch_size, i);
ThreadStatusUtil::SetEnableTracking(FLAGS_enable_thread_tracking);
ThreadStatusUtil::SetThreadOperation(
ThreadStatus::OperationType::OP_MULTIGET);
TestMultiGet(thread, read_opts, rand_column_families, rand_keys);
ThreadStatusUtil::ResetThreadStatus();
i += multiget_batch_size - 1;
} else {
ThreadStatusUtil::SetEnableTracking(FLAGS_enable_thread_tracking);
ThreadStatusUtil::SetThreadOperation(
ThreadStatus::OperationType::OP_GET);
TestGet(thread, read_opts, rand_column_families, rand_keys);
ThreadStatusUtil::ResetThreadStatus();
}
} else if (prob_op < prefix_bound) {
assert(static_cast<int>(FLAGS_readpercent) <= prob_op);
@ -1066,8 +1090,12 @@ void StressTest::OperateDb(ThreadState* thread) {
if (!FLAGS_skip_verifydb &&
thread->rand.OneInOpt(
FLAGS_verify_iterator_with_expected_state_one_in)) {
ThreadStatusUtil::SetEnableTracking(FLAGS_enable_thread_tracking);
ThreadStatusUtil::SetThreadOperation(
ThreadStatus::OperationType::OP_DBITERATOR);
TestIterateAgainstExpected(thread, read_opts, rand_column_families,
rand_keys);
ThreadStatusUtil::ResetThreadStatus();
} else {
int num_seeks = static_cast<int>(std::min(
std::max(static_cast<uint64_t>(thread->rand.Uniform(4)),
@ -1076,7 +1104,11 @@ void StressTest::OperateDb(ThreadState* thread) {
static_cast<uint64_t>(1))));
rand_keys = GenerateNKeys(thread, num_seeks, i);
i += num_seeks - 1;
ThreadStatusUtil::SetEnableTracking(FLAGS_enable_thread_tracking);
ThreadStatusUtil::SetThreadOperation(
ThreadStatus::OperationType::OP_DBITERATOR);
TestIterate(thread, read_opts, rand_column_families, rand_keys);
ThreadStatusUtil::ResetThreadStatus();
}
} else {
assert(iterate_bound <= prob_op);

9
db_stress_tool/no_batched_ops_stress.cc
View File

@ -585,6 +585,7 @@ class NonBatchedOpsStressTest : public StressTest {
bool do_consistency_check = thread->rand.OneIn(4);
ReadOptions readoptionscopy = read_opts;
if (do_consistency_check) {
readoptionscopy.snapshot = db_->GetSnapshot();
}
@ -778,9 +779,17 @@ class NonBatchedOpsStressTest : public StressTest {
if (use_txn) {
assert(txn);
ThreadStatusUtil::SetThreadOperation(
ThreadStatus::OperationType::OP_GET);
tmp_s = txn->Get(readoptionscopy, cfh, key, &value);
ThreadStatusUtil::SetThreadOperation(
ThreadStatus::OperationType::OP_MULTIGET);
} else {
ThreadStatusUtil::SetThreadOperation(
ThreadStatus::OperationType::OP_GET);
tmp_s = db_->Get(readoptionscopy, cfh, key, &value);
ThreadStatusUtil::SetThreadOperation(
ThreadStatus::OperationType::OP_MULTIGET);
}
if (!tmp_s.ok() && !tmp_s.IsNotFound()) {
fprintf(stderr, "Get error: %s\n", s.ToString().c_str());

53
file/file_prefetch_buffer.cc
View File

@ -81,13 +81,12 @@ void FilePrefetchBuffer::CalculateOffsetAndLen(size_t alignment,
Status FilePrefetchBuffer::Read(const IOOptions& opts,
RandomAccessFileReader* reader,
Env::IOPriority rate_limiter_priority,
uint64_t read_len, uint64_t chunk_len,
uint64_t rounddown_start, uint32_t index) {
Slice result;
Status s = reader->Read(opts, rounddown_start + chunk_len, read_len, &result,
bufs_[index].buffer_.BufferStart() + chunk_len,
/*aligned_buf=*/nullptr, rate_limiter_priority);
/*aligned_buf=*/nullptr);
#ifndef NDEBUG
if (result.size() < read_len) {
// Fake an IO error to force db_stress fault injection to ignore
@ -134,8 +133,7 @@ Status FilePrefetchBuffer::ReadAsync(const IOOptions& opts,
Status FilePrefetchBuffer::Prefetch(const IOOptions& opts,
RandomAccessFileReader* reader,
uint64_t offset, size_t n,
Env::IOPriority rate_limiter_priority) {
uint64_t offset, size_t n) {
if (!enable_ || reader == nullptr) {
return Status::OK();
}
@ -160,8 +158,7 @@ Status FilePrefetchBuffer::Prefetch(const IOOptions& opts,
true /*refit_tail*/, chunk_len);
size_t read_len = static_cast<size_t>(roundup_len - chunk_len);
Status s = Read(opts, reader, rate_limiter_priority, read_len, chunk_len,
rounddown_offset, curr_);
Status s = Read(opts, reader, read_len, chunk_len, rounddown_offset, curr_);
if (usage_ == FilePrefetchBufferUsage::kTableOpenPrefetchTail && s.ok()) {
RecordInHistogram(stats_, TABLE_OPEN_PREFETCH_TAIL_READ_BYTES, read_len);
}
@ -328,8 +325,7 @@ void FilePrefetchBuffer::PollAndUpdateBuffersIfNeeded(uint64_t offset) {
Status FilePrefetchBuffer::HandleOverlappingData(
const IOOptions& opts, RandomAccessFileReader* reader, uint64_t offset,
size_t length, size_t readahead_size,
Env::IOPriority /*rate_limiter_priority*/, bool& copy_to_third_buffer,
size_t length, size_t readahead_size, bool& copy_to_third_buffer,
uint64_t& tmp_offset, size_t& tmp_length) {
Status s;
size_t alignment = reader->file()->GetRequiredBufferAlignment();
@ -412,9 +408,10 @@ Status FilePrefetchBuffer::HandleOverlappingData(
// curr_, send async request on curr_, wait for poll to fill second
// buffer (if any), and copy remaining data from second buffer to third
// buffer.
Status FilePrefetchBuffer::PrefetchAsyncInternal(
const IOOptions& opts, RandomAccessFileReader* reader, uint64_t offset,
size_t length, size_t readahead_size, Env::IOPriority rate_limiter_priority,
Status FilePrefetchBuffer::PrefetchAsyncInternal(const IOOptions& opts,
RandomAccessFileReader* reader,
uint64_t offset, size_t length,
size_t readahead_size,
bool& copy_to_third_buffer) {
if (!enable_) {
return Status::OK();
@ -442,8 +439,7 @@ Status FilePrefetchBuffer::PrefetchAsyncInternal(
// - switch buffers and curr_ now points to second buffer to copy remaining
// data.
s = HandleOverlappingData(opts, reader, offset, length, readahead_size,
rate_limiter_priority, copy_to_third_buffer,
tmp_offset, tmp_length);
copy_to_third_buffer, tmp_offset, tmp_length);
if (!s.ok()) {
return s;
}
@ -581,8 +577,7 @@ Status FilePrefetchBuffer::PrefetchAsyncInternal(
}
if (read_len1 > 0) {
s = Read(opts, reader, rate_limiter_priority, read_len1, chunk_len1,
rounddown_start1, curr_);
s = Read(opts, reader, read_len1, chunk_len1, rounddown_start1, curr_);
if (!s.ok()) {
if (bufs_[second].io_handle_ != nullptr) {
std::vector<void*> handles;
@ -610,10 +605,9 @@ bool FilePrefetchBuffer::TryReadFromCache(const IOOptions& opts,
RandomAccessFileReader* reader,
uint64_t offset, size_t n,
Slice* result, Status* status,
Env::IOPriority rate_limiter_priority,
bool for_compaction /* = false */) {
bool ret = TryReadFromCacheUntracked(opts, reader, offset, n, result, status,
rate_limiter_priority, for_compaction);
for_compaction);
if (usage_ == FilePrefetchBufferUsage::kTableOpenPrefetchTail && enable_) {
if (ret) {
RecordTick(stats_, TABLE_OPEN_PREFETCH_TAIL_HIT);
@ -627,7 +621,7 @@ bool FilePrefetchBuffer::TryReadFromCache(const IOOptions& opts,
bool FilePrefetchBuffer::TryReadFromCacheUntracked(
const IOOptions& opts, RandomAccessFileReader* reader, uint64_t offset,
size_t n, Slice* result, Status* status,
Env::IOPriority rate_limiter_priority, bool for_compaction /* = false */) {
bool for_compaction /* = false */) {
if (track_min_offset_ && offset < min_offset_read_) {
min_offset_read_ = static_cast<size_t>(offset);
}
@ -647,8 +641,7 @@ bool FilePrefetchBuffer::TryReadFromCacheUntracked(
assert(reader != nullptr);
assert(max_readahead_size_ >= readahead_size_);
if (for_compaction) {
s = Prefetch(opts, reader, offset, std::max(n, readahead_size_),
rate_limiter_priority);
s = Prefetch(opts, reader, offset, std::max(n, readahead_size_));
} else {
if (implicit_auto_readahead_) {
if (!IsEligibleForPrefetch(offset, n)) {
@ -657,8 +650,7 @@ bool FilePrefetchBuffer::TryReadFromCacheUntracked(
return false;
}
}
s = Prefetch(opts, reader, offset, n + readahead_size_,
rate_limiter_priority);
s = Prefetch(opts, reader, offset, n + readahead_size_);
}
if (!s.ok()) {
if (status) {
@ -681,12 +673,12 @@ bool FilePrefetchBuffer::TryReadFromCacheUntracked(
return true;
}
bool FilePrefetchBuffer::TryReadFromCacheAsync(
const IOOptions& opts, RandomAccessFileReader* reader, uint64_t offset,
size_t n, Slice* result, Status* status,
Env::IOPriority rate_limiter_priority) {
bool ret = TryReadFromCacheAsyncUntracked(opts, reader, offset, n, result,
status, rate_limiter_priority);
bool FilePrefetchBuffer::TryReadFromCacheAsync(const IOOptions& opts,
RandomAccessFileReader* reader,
uint64_t offset, size_t n,
Slice* result, Status* status) {
bool ret =
TryReadFromCacheAsyncUntracked(opts, reader, offset, n, result, status);
if (usage_ == FilePrefetchBufferUsage::kTableOpenPrefetchTail && enable_) {
if (ret) {
RecordTick(stats_, TABLE_OPEN_PREFETCH_TAIL_HIT);
@ -699,8 +691,7 @@ bool FilePrefetchBuffer::TryReadFromCacheAsync(
bool FilePrefetchBuffer::TryReadFromCacheAsyncUntracked(
const IOOptions& opts, RandomAccessFileReader* reader, uint64_t offset,
size_t n, Slice* result, Status* status,
Env::IOPriority rate_limiter_priority) {
size_t n, Slice* result, Status* status) {
if (track_min_offset_ && offset < min_offset_read_) {
min_offset_read_ = static_cast<size_t>(offset);
}
@ -755,7 +746,7 @@ bool FilePrefetchBuffer::TryReadFromCacheAsyncUntracked(
// Prefetch n + readahead_size_/2 synchronously as remaining
// readahead_size_/2 will be prefetched asynchronously.
s = PrefetchAsyncInternal(opts, reader, offset, n, readahead_size_ / 2,
rate_limiter_priority, copy_to_third_buffer);
copy_to_third_buffer);
explicit_prefetch_submitted_ = false;
if (!s.ok()) {
if (status) {

22
file/file_prefetch_buffer.h
View File

@ -183,14 +183,12 @@ class FilePrefetchBuffer {
bool Enabled() const { return enable_; }
// Load data into the buffer from a file.
// opts : the IO options to use.
// reader : the file reader.
// offset : the file offset to start reading from.
// n : the number of bytes to read.
// rate_limiter_priority : rate limiting priority, or `Env::IO_TOTAL` to
// bypass.
Status Prefetch(const IOOptions& opts, RandomAccessFileReader* reader,
uint64_t offset, size_t n,
Env::IOPriority rate_limiter_priority);
uint64_t offset, size_t n);
// Request for reading the data from a file asynchronously.
// If data already exists in the buffer, result will be updated.
@ -217,18 +215,14 @@ class FilePrefetchBuffer {
// n : the number of bytes.
// result : output buffer to put the data into.
// s : output status.
// rate_limiter_priority : rate limiting priority, or `Env::IO_TOTAL` to
// bypass.
// for_compaction : true if cache read is done for compaction read.
bool TryReadFromCache(const IOOptions& opts, RandomAccessFileReader* reader,
uint64_t offset, size_t n, Slice* result, Status* s,
Env::IOPriority rate_limiter_priority,
bool for_compaction = false);
bool TryReadFromCacheAsync(const IOOptions& opts,
RandomAccessFileReader* reader, uint64_t offset,
size_t n, Slice* result, Status* status,
Env::IOPriority rate_limiter_priority);
size_t n, Slice* result, Status* status);
// The minimum `offset` ever passed to TryReadFromCache(). This will nly be
// tracked if track_min_offset = true.
@ -305,12 +299,11 @@ class FilePrefetchBuffer {
Status PrefetchAsyncInternal(const IOOptions& opts,
RandomAccessFileReader* reader, uint64_t offset,
size_t length, size_t readahead_size,
Env::IOPriority rate_limiter_priority,
bool& copy_to_third_buffer);
Status Read(const IOOptions& opts, RandomAccessFileReader* reader,
Env::IOPriority rate_limiter_priority, uint64_t read_len,
uint64_t chunk_len, uint64_t rounddown_start, uint32_t index);
uint64_t read_len, uint64_t chunk_len, uint64_t rounddown_start,
uint32_t index);
Status ReadAsync(const IOOptions& opts, RandomAccessFileReader* reader,
uint64_t read_len, uint64_t rounddown_start, uint32_t index);
@ -409,7 +402,6 @@ class FilePrefetchBuffer {
Status HandleOverlappingData(const IOOptions& opts,
RandomAccessFileReader* reader, uint64_t offset,
size_t length, size_t readahead_size,
Env::IOPriority rate_limiter_priority,
bool& copy_to_third_buffer, uint64_t& tmp_offset,
size_t& tmp_length);
@ -417,14 +409,12 @@ class FilePrefetchBuffer {
RandomAccessFileReader* reader,
uint64_t offset, size_t n, Slice* result,
Status* s,
Env::IOPriority rate_limiter_priority,
bool for_compaction = false);
bool TryReadFromCacheAsyncUntracked(const IOOptions& opts,
RandomAccessFileReader* reader,
uint64_t offset, size_t n, Slice* result,
Status* status,
Env::IOPriority rate_limiter_priority);
Status* status);
std::vector<BufferInfo> bufs_;
// curr_ represents the index for bufs_ indicating which buffer is being

10
file/file_util.cc
View File

@ -137,7 +137,7 @@ IOStatus GenerateOneFileChecksum(
std::string* file_checksum_func_name,
size_t verify_checksums_readahead_size, bool /*allow_mmap_reads*/,
std::shared_ptr<IOTracer>& io_tracer, RateLimiter* rate_limiter,
Env::IOPriority rate_limiter_priority) {
const ReadOptions& read_options) {
if (checksum_factory == nullptr) {
return IOStatus::InvalidArgument("Checksum factory is invalid");
}
@ -206,11 +206,15 @@ IOStatus GenerateOneFileChecksum(
Slice slice;
uint64_t offset = 0;
IOOptions opts;
io_s = reader->PrepareIOOptions(read_options, opts);
if (!io_s.ok()) {
return io_s;
}
while (size > 0) {
size_t bytes_to_read =
static_cast<size_t>(std::min(uint64_t{readahead_size}, size));
io_s = reader->Read(opts, offset, bytes_to_read, &slice, buf.get(), nullptr,
rate_limiter_priority);
io_s =
reader->Read(opts, offset, bytes_to_read, &slice, buf.get(), nullptr);
if (!io_s.ok()) {
return IOStatus::Corruption("file read failed with error: " +
io_s.ToString());

2
file/file_util.h
View File

@ -59,7 +59,7 @@ extern IOStatus GenerateOneFileChecksum(
std::string* file_checksum_func_name,
size_t verify_checksums_readahead_size, bool allow_mmap_reads,
std::shared_ptr<IOTracer>& io_tracer, RateLimiter* rate_limiter,
Env::IOPriority rate_limiter_priority);
const ReadOptions& read_options);
inline IOStatus PrepareIOFromReadOptions(const ReadOptions& ro,
SystemClock* clock, IOOptions& opts) {

13
file/prefetch_test.cc
View File

@ -2606,8 +2606,10 @@ TEST_F(FilePrefetchBufferTest, SeekWithBlockCacheHit) {
fpb.UpdateReadPattern(0, 4096, false);
// Now read some data that straddles the two prefetch buffers - offset 8192 to
// 16384
ASSERT_TRUE(fpb.TryReadFromCacheAsync(IOOptions(), r.get(), 8192, 8192,
&result, &s, Env::IOPriority::IO_LOW));
IOOptions io_opts;
io_opts.rate_limiter_priority = Env::IOPriority::IO_LOW;
ASSERT_TRUE(
fpb.TryReadFromCacheAsync(io_opts, r.get(), 8192, 8192, &result, &s));
}
TEST_F(FilePrefetchBufferTest, NoSyncWithAsyncIO) {
@ -2642,9 +2644,10 @@ TEST_F(FilePrefetchBufferTest, NoSyncWithAsyncIO) {
}
ASSERT_TRUE(s.IsTryAgain());
ASSERT_TRUE(fpb.TryReadFromCacheAsync(IOOptions(), r.get(), /*offset=*/3000,
/*length=*/4000, &async_result, &s,
Env::IOPriority::IO_LOW));
IOOptions io_opts;
io_opts.rate_limiter_priority = Env::IOPriority::IO_LOW;
ASSERT_TRUE(fpb.TryReadFromCacheAsync(io_opts, r.get(), /*offset=*/3000,
/*length=*/4000, &async_result, &s));
// No sync call should be made.
HistogramData sst_read_micros;
stats()->histogramData(SST_READ_MICROS, &sst_read_micros);

73
file/random_access_file_reader.cc
View File

@ -22,12 +22,37 @@
#include "util/rate_limiter_impl.h"
namespace ROCKSDB_NAMESPACE {
const std::array<Histograms, std::size_t(Env::IOActivity::kUnknown)>
kReadHistograms{{
FILE_READ_FLUSH_MICROS,
FILE_READ_COMPACTION_MICROS,
FILE_READ_DB_OPEN_MICROS,
}};
inline Histograms GetFileReadHistograms(Statistics* stats,
Env::IOActivity io_activity) {
switch (io_activity) {
case Env::IOActivity::kFlush:
return Histograms::FILE_READ_FLUSH_MICROS;
case Env::IOActivity::kCompaction:
return Histograms::FILE_READ_COMPACTION_MICROS;
case Env::IOActivity::kDBOpen:
return Histograms::FILE_READ_DB_OPEN_MICROS;
default:
break;
}
if (stats && stats->get_stats_level() > StatsLevel::kExceptDetailedTimers) {
switch (io_activity) {
case Env::IOActivity::kGet:
return Histograms::FILE_READ_GET_MICROS;
case Env::IOActivity::kMultiGet:
return Histograms::FILE_READ_MULTIGET_MICROS;
case Env::IOActivity::kDBIterator:
return Histograms::FILE_READ_DB_ITERATOR_MICROS;
case Env::IOActivity::kVerifyDBChecksum:
return Histograms::FILE_READ_VERIFY_DB_CHECKSUM_MICROS;
case Env::IOActivity::kVerifyFileChecksums:
return Histograms::FILE_READ_VERIFY_FILE_CHECKSUMS_MICROS;
default:
break;
}
}
return Histograms::HISTOGRAM_ENUM_MAX;
}
inline void RecordIOStats(Statistics* stats, Temperature file_temperature,
bool is_last_level, size_t size) {
IOSTATS_ADD(bytes_read, size);
@ -79,11 +104,11 @@ IOStatus RandomAccessFileReader::Create(
return io_s;
}
IOStatus RandomAccessFileReader::Read(
const IOOptions& opts, uint64_t offset, size_t n, Slice* result,
char* scratch, AlignedBuf* aligned_buf,
Env::IOPriority rate_limiter_priority) const {
IOStatus RandomAccessFileReader::Read(const IOOptions& opts, uint64_t offset,
size_t n, Slice* result, char* scratch,
AlignedBuf* aligned_buf) const {
(void)aligned_buf;
const Env::IOPriority rate_limiter_priority = opts.rate_limiter_priority;
TEST_SYNC_POINT_CALLBACK("RandomAccessFileReader::Read", nullptr);
@ -108,9 +133,7 @@ IOStatus RandomAccessFileReader::Read(
{
StopWatch sw(clock_, stats_, hist_type_,
(opts.io_activity != Env::IOActivity::kUnknown)
? kReadHistograms[(std::size_t)(opts.io_activity)]
: Histograms::HISTOGRAM_ENUM_MAX,
GetFileReadHistograms(stats_, opts.io_activity),
(stats_ != nullptr) ? &elapsed : nullptr, true /*overwrite*/,
true /*delay_enabled*/);
auto prev_perf_level = GetPerfLevel();
@ -277,9 +300,10 @@ bool TryMerge(FSReadRequest* dest, const FSReadRequest& src) {
return true;
}
IOStatus RandomAccessFileReader::MultiRead(
const IOOptions& opts, FSReadRequest* read_reqs, size_t num_reqs,
AlignedBuf* aligned_buf, Env::IOPriority rate_limiter_priority) const {
IOStatus RandomAccessFileReader::MultiRead(const IOOptions& opts,
FSReadRequest* read_reqs,
size_t num_reqs,
AlignedBuf* aligned_buf) const {
(void)aligned_buf; // suppress warning of unused variable in LITE mode
assert(num_reqs > 0);
@ -288,6 +312,7 @@ IOStatus RandomAccessFileReader::MultiRead(
assert(read_reqs[i].offset <= read_reqs[i + 1].offset);
}
#endif // !NDEBUG
const Env::IOPriority rate_limiter_priority = opts.rate_limiter_priority;
// To be paranoid modify scratch a little bit, so in case underlying
// FileSystem doesn't fill the buffer but return success and `scratch` returns
@ -304,9 +329,7 @@ IOStatus RandomAccessFileReader::MultiRead(
uint64_t elapsed = 0;
{
StopWatch sw(clock_, stats_, hist_type_,
(opts.io_activity != Env::IOActivity::kUnknown)
? kReadHistograms[(std::size_t)(opts.io_activity)]
: Histograms::HISTOGRAM_ENUM_MAX,
GetFileReadHistograms(stats_, opts.io_activity),
(stats_ != nullptr) ? &elapsed : nullptr, true /*overwrite*/,
true /*delay_enabled*/);
auto prev_perf_level = GetPerfLevel();
@ -495,16 +518,16 @@ IOStatus RandomAccessFileReader::ReadAsync(
assert(read_async_info->buf_.CurrentSize() == 0);
StopWatch sw(clock_, nullptr /*stats*/,
Histograms::HISTOGRAM_ENUM_MAX /*hist_type*/,
Histograms::HISTOGRAM_ENUM_MAX, &elapsed, true /*overwrite*/,
StopWatch sw(clock_, stats_, hist_type_,
GetFileReadHistograms(stats_, opts.io_activity),
(stats_ != nullptr) ? &elapsed : nullptr, true /*overwrite*/,
true /*delay_enabled*/);
s = file_->ReadAsync(aligned_req, opts, read_async_callback,
read_async_info, io_handle, del_fn, nullptr /*dbg*/);
} else {
StopWatch sw(clock_, nullptr /*stats*/,
Histograms::HISTOGRAM_ENUM_MAX /*hist_type*/,
Histograms::HISTOGRAM_ENUM_MAX, &elapsed, true /*overwrite*/,
StopWatch sw(clock_, stats_, hist_type_,
GetFileReadHistograms(stats_, opts.io_activity),
(stats_ != nullptr) ? &elapsed : nullptr, true /*overwrite*/,
true /*delay_enabled*/);
s = file_->ReadAsync(req, opts, read_async_callback, read_async_info,
io_handle, del_fn, nullptr /*dbg*/);

19
file/random_access_file_reader.h
View File

@ -164,31 +164,18 @@ class RandomAccessFileReader {
// 2. Otherwise, scratch is not used and can be null, the aligned_buf owns
// the internally allocated buffer on return, and the result refers to a
// region in aligned_buf.
//
// `rate_limiter_priority` is used to charge the internal rate limiter when
// enabled. The special value `Env::IO_TOTAL` makes this operation bypass the
// rate limiter.
IOStatus Read(const IOOptions& opts, uint64_t offset, size_t n, Slice* result,
char* scratch, AlignedBuf* aligned_buf,
Env::IOPriority rate_limiter_priority) const;
char* scratch, AlignedBuf* aligned_buf) const;
// REQUIRES:
// num_reqs > 0, reqs do not overlap, and offsets in reqs are increasing.
// In non-direct IO mode, aligned_buf should be null;
// In direct IO mode, aligned_buf stores the aligned buffer allocated inside
// MultiRead, the result Slices in reqs refer to aligned_buf.
//
// `rate_limiter_priority` will be used to charge the internal rate limiter.
// It is not yet supported so the client must provide the special value
// `Env::IO_TOTAL` to bypass the rate limiter.
IOStatus MultiRead(const IOOptions& opts, FSReadRequest* reqs,
size_t num_reqs, AlignedBuf* aligned_buf,
Env::IOPriority rate_limiter_priority) const;
size_t num_reqs, AlignedBuf* aligned_buf) const;
IOStatus Prefetch(uint64_t offset, size_t n,
const Env::IOPriority rate_limiter_priority) const {
IOOptions opts;
opts.rate_limiter_priority = rate_limiter_priority;
IOStatus Prefetch(const IOOptions& opts, uint64_t offset, size_t n) const {
return file_->Prefetch(offset, n, opts, nullptr);
}

21
file/random_access_file_reader_test.cc
View File

@ -83,8 +83,9 @@ TEST_F(RandomAccessFileReaderTest, ReadDirectIO) {
Slice result;
AlignedBuf buf;
for (Env::IOPriority rate_limiter_priority : {Env::IO_LOW, Env::IO_TOTAL}) {
ASSERT_OK(r->Read(IOOptions(), offset, len, &result, nullptr, &buf,
rate_limiter_priority));
IOOptions io_opts;
io_opts.rate_limiter_priority = rate_limiter_priority;
ASSERT_OK(r->Read(io_opts, offset, len, &result, nullptr, &buf));
ASSERT_EQ(result.ToString(), content.substr(offset, len));
}
}
@ -146,8 +147,8 @@ TEST_F(RandomAccessFileReaderTest, MultiReadDirectIO) {
reqs.push_back(std::move(r0));
reqs.push_back(std::move(r1));
AlignedBuf aligned_buf;
ASSERT_OK(r->MultiRead(IOOptions(), reqs.data(), reqs.size(), &aligned_buf,
Env::IO_TOTAL /*rate_limiter_priority*/));
ASSERT_OK(
r->MultiRead(IOOptions(), reqs.data(), reqs.size(), &aligned_buf));
AssertResult(content, reqs);
@ -191,8 +192,8 @@ TEST_F(RandomAccessFileReaderTest, MultiReadDirectIO) {
reqs.push_back(std::move(r1));
reqs.push_back(std::move(r2));
AlignedBuf aligned_buf;
ASSERT_OK(r->MultiRead(IOOptions(), reqs.data(), reqs.size(), &aligned_buf,
Env::IO_TOTAL /*rate_limiter_priority*/));
ASSERT_OK(
r->MultiRead(IOOptions(), reqs.data(), reqs.size(), &aligned_buf));
AssertResult(content, reqs);
@ -236,8 +237,8 @@ TEST_F(RandomAccessFileReaderTest, MultiReadDirectIO) {
reqs.push_back(std::move(r1));
reqs.push_back(std::move(r2));
AlignedBuf aligned_buf;
ASSERT_OK(r->MultiRead(IOOptions(), reqs.data(), reqs.size(), &aligned_buf,
Env::IO_TOTAL /*rate_limiter_priority*/));
ASSERT_OK(
r->MultiRead(IOOptions(), reqs.data(), reqs.size(), &aligned_buf));
AssertResult(content, reqs);
@ -273,8 +274,8 @@ TEST_F(RandomAccessFileReaderTest, MultiReadDirectIO) {
reqs.push_back(std::move(r0));
reqs.push_back(std::move(r1));
AlignedBuf aligned_buf;
ASSERT_OK(r->MultiRead(IOOptions(), reqs.data(), reqs.size(), &aligned_buf,
Env::IO_TOTAL /*rate_limiter_priority*/));
ASSERT_OK(
r->MultiRead(IOOptions(), reqs.data(), reqs.size(), &aligned_buf));
AssertResult(content, reqs);

3
file/sequence_file_reader.h
View File

@ -99,6 +99,9 @@ class SequentialFileReader {
// when less than n bytes are actually read (e.g. at end of file). To avoid
// overcharging the rate limiter, the caller can use file size to cap n to
// read until end of file.
//
// TODO(hx235): accept parameter `IOOptions` containing
// `rate_limiter_priority` like RandomAccessFileReader::Read()
IOStatus Read(size_t n, Slice* result, char* scratch,
Env::IOPriority rate_limiter_priority);

2
include/rocksdb/convenience.h
View File

@ -459,7 +459,7 @@ Status VerifySstFileChecksum(const Options& options,
// Verify the checksum of file
Status VerifySstFileChecksum(const Options& options,
const EnvOptions& env_options,
const ReadOptions& read_options,
const ReadOptions& _read_options,
const std::string& file_path,
const SequenceNumber& largest_seqno = 0);

5
include/rocksdb/env.h
View File

@ -441,6 +441,11 @@ class Env : public Customizable {
kFlush = 0,
kCompaction = 1,
kDBOpen = 2,
kGet = 3,
kMultiGet = 4,
kDBIterator = 5,
kVerifyDBChecksum = 6,
kVerifyFileChecksums = 7,
kUnknown, // Keep last for easy array of non-unknowns
};

7
include/rocksdb/statistics.h
View File

@ -555,6 +555,13 @@ enum Histograms : uint32_t {
FILE_READ_FLUSH_MICROS,
FILE_READ_COMPACTION_MICROS,
FILE_READ_DB_OPEN_MICROS,
// The following `FILE_READ_*` require stats level greater than
// `StatsLevel::kExceptDetailedTimers`
FILE_READ_GET_MICROS,
FILE_READ_MULTIGET_MICROS,
FILE_READ_DB_ITERATOR_MICROS,
FILE_READ_VERIFY_DB_CHECKSUM_MICROS,
FILE_READ_VERIFY_FILE_CHECKSUMS_MICROS,
// The number of subcompactions actually scheduled during a compaction
NUM_SUBCOMPACTIONS_SCHEDULED,

5
include/rocksdb/thread_status.h
View File

@ -57,6 +57,11 @@ struct ThreadStatus {
OP_COMPACTION,
OP_FLUSH,
OP_DBOPEN,
OP_GET,
OP_MULTIGET,
OP_DBITERATOR,
OP_VERIFY_DB_CHECKSUM,
OP_VERIFY_FILE_CHECKSUMS,
NUM_OP_TYPES
};

31
include/rocksdb/utilities/transaction.h
View File

@ -335,8 +335,22 @@ class Transaction {
const size_t num_keys, const Slice* keys,
PinnableSlice* values, Status* statuses,
const bool /*sorted_input*/ = false) {
if (options.io_activity != Env::IOActivity::kUnknown &&
options.io_activity != Env::IOActivity::kMultiGet) {
Status s = Status::InvalidArgument(
"Can only call MultiGet with `ReadOptions::io_activity` is "
"`Env::IOActivity::kUnknown` or `Env::IOActivity::kMultiGet`");
for (size_t i = 0; i < num_keys; ++i) {
statuses[i] = Get(options, column_family, keys[i], &values[i]);
if (statuses[i].ok()) {
statuses[i] = s;
}
}
return;
}
for (size_t i = 0; i < num_keys; ++i) {
statuses[i] = GetImpl(options, column_family, keys[i], &values[i]);
}
}
@ -673,6 +687,21 @@ class Transaction {
id_ = id;
}
virtual Status GetImpl(const ReadOptions& /* options */,
ColumnFamilyHandle* /* column_family */,
const Slice& /* key */, std::string* /* value */) {
return Status::NotSupported("Not implemented");
}
virtual Status GetImpl(const ReadOptions& options,
ColumnFamilyHandle* column_family, const Slice& key,
PinnableSlice* pinnable_val) {
assert(pinnable_val != nullptr);
auto s = GetImpl(options, column_family, key, pinnable_val->GetSelf());
pinnable_val->PinSelf();
return s;
}
virtual uint64_t GetLastLogNumber() const { return log_number_; }
private:

23
java/rocksjni/portal.h
View File

@ -5629,6 +5629,17 @@ class HistogramTypeJni {
return 0x3B;
case ROCKSDB_NAMESPACE::Histograms::FILE_READ_DB_OPEN_MICROS:
return 0x3C;
case ROCKSDB_NAMESPACE::Histograms::FILE_READ_GET_MICROS:
return 0x3D;
case ROCKSDB_NAMESPACE::Histograms::FILE_READ_MULTIGET_MICROS:
return 0x3E;
case ROCKSDB_NAMESPACE::Histograms::FILE_READ_DB_ITERATOR_MICROS:
return 0x3F;
case ROCKSDB_NAMESPACE::Histograms::FILE_READ_VERIFY_DB_CHECKSUM_MICROS:
return 0x40;
case ROCKSDB_NAMESPACE::Histograms::
FILE_READ_VERIFY_FILE_CHECKSUMS_MICROS:
return 0x41;
case ROCKSDB_NAMESPACE::Histograms::HISTOGRAM_ENUM_MAX:
// 0x1F for backwards compatibility on current minor version.
return 0x1F;
@ -5754,6 +5765,18 @@ class HistogramTypeJni {
return ROCKSDB_NAMESPACE::Histograms::FILE_READ_COMPACTION_MICROS;
case 0x3C:
return ROCKSDB_NAMESPACE::Histograms::FILE_READ_DB_OPEN_MICROS;
case 0x3D:
return ROCKSDB_NAMESPACE::Histograms::FILE_READ_GET_MICROS;
case 0x3E:
return ROCKSDB_NAMESPACE::Histograms::FILE_READ_MULTIGET_MICROS;
case 0x3F:
return ROCKSDB_NAMESPACE::Histograms::FILE_READ_DB_ITERATOR_MICROS;
case 0x40:
return ROCKSDB_NAMESPACE::Histograms::
FILE_READ_VERIFY_DB_CHECKSUM_MICROS;
case 0x41:
return ROCKSDB_NAMESPACE::Histograms::
FILE_READ_VERIFY_FILE_CHECKSUMS_MICROS;
case 0x1F:
// 0x1F for backwards compatibility on current minor version.
return ROCKSDB_NAMESPACE::Histograms::HISTOGRAM_ENUM_MAX;

10
java/src/main/java/org/rocksdb/HistogramType.java
View File

@ -175,6 +175,16 @@ public enum HistogramType {
FILE_READ_DB_OPEN_MICROS((byte) 0x3C),
FILE_READ_GET_MICROS((byte) 0x3D),
FILE_READ_MULTIGET_MICROS((byte) 0x3E),
FILE_READ_DB_ITERATOR_MICROS((byte) 0x3F),
FILE_READ_VERIFY_DB_CHECKSUM_MICROS((byte) 0x40),
FILE_READ_VERIFY_FILE_CHECKSUMS_MICROS((byte) 0x41),
// 0x1F for backwards compatibility on current minor version.
HISTOGRAM_ENUM_MAX((byte) 0x1F);

3
microbench/db_basic_bench.cc
View File

@ -1555,8 +1555,7 @@ static void RandomAccessFileReaderRead(benchmark::State& state) {
uint64_t idx = 0;
for (auto _ : state) {
s = readers[idx++ % kFileNum]->Read(io_options, 0, kDefaultPageSize / 3,
&result, scratch.get(), nullptr,
Env::IO_TOTAL);
&result, scratch.get(), nullptr);
if (!s.ok()) {
state.SkipWithError(s.ToString().c_str());
}

7
monitoring/statistics.cc
View File

@ -281,6 +281,13 @@ const std::vector<std::pair<Histograms, std::string>> HistogramsNameMap = {
{FILE_READ_FLUSH_MICROS, "rocksdb.file.read.flush.micros"},
{FILE_READ_COMPACTION_MICROS, "rocksdb.file.read.compaction.micros"},
{FILE_READ_DB_OPEN_MICROS, "rocksdb.file.read.db.open.micros"},
{FILE_READ_GET_MICROS, "rocksdb.file.read.get.micros"},
{FILE_READ_MULTIGET_MICROS, "rocksdb.file.read.multiget.micros"},
{FILE_READ_DB_ITERATOR_MICROS, "rocksdb.file.read.db.iterator.micros"},
{FILE_READ_VERIFY_DB_CHECKSUM_MICROS,
"rocksdb.file.read.verify.db.checksum.micros"},
{FILE_READ_VERIFY_FILE_CHECKSUMS_MICROS,
"rocksdb.file.read.verify.file.checksums.micros"},
{NUM_SUBCOMPACTIONS_SCHEDULED, "rocksdb.num.subcompactions.scheduled"},
{BYTES_PER_READ, "rocksdb.bytes.per.read"},
{BYTES_PER_WRITE, "rocksdb.bytes.per.write"},

10
monitoring/thread_status_util_debug.cc
View File

@ -36,6 +36,16 @@ Env::IOActivity ThreadStatusUtil::TEST_GetExpectedIOActivity(
return Env::IOActivity::kCompaction;
case ThreadStatus::OperationType::OP_DBOPEN:
return Env::IOActivity::kDBOpen;
case ThreadStatus::OperationType::OP_GET:
return Env::IOActivity::kGet;
case ThreadStatus::OperationType::OP_MULTIGET:
return Env::IOActivity::kMultiGet;
case ThreadStatus::OperationType::OP_DBITERATOR:
return Env::IOActivity::kDBIterator;
case ThreadStatus::OperationType::OP_VERIFY_DB_CHECKSUM:
return Env::IOActivity::kVerifyDBChecksum;
case ThreadStatus::OperationType::OP_VERIFY_FILE_CHECKSUMS:
return Env::IOActivity::kVerifyFileChecksums;
default:
return Env::IOActivity::kUnknown;
}

4
table/block_based/block_based_table_iterator.cc
View File

@ -281,7 +281,7 @@ void BlockBasedTableIterator::InitDataBlock() {
// Enabled from the very first IO when ReadOptions.readahead_size is set.
block_prefetcher_.PrefetchIfNeeded(
rep, data_block_handle, read_options_.readahead_size, is_for_compaction,
/*no_sequential_checking=*/false, read_options_.rate_limiter_priority);
/*no_sequential_checking=*/false, read_options_);
Status s;
table_->NewDataBlockIterator<DataBlockIter>(
read_options_, data_block_handle, &block_iter_, BlockType::kData,
@ -326,7 +326,7 @@ void BlockBasedTableIterator::AsyncInitDataBlock(bool is_first_pass) {
block_prefetcher_.PrefetchIfNeeded(
rep, data_block_handle, read_options_.readahead_size,
is_for_compaction, /*no_sequential_checking=*/read_options_.async_io,
read_options_.rate_limiter_priority);
read_options_);
Status s;
table_->NewDataBlockIterator<DataBlockIter>(

13
table/block_based/block_based_table_reader.cc
View File

@ -860,10 +860,11 @@ Status BlockBasedTable::PrefetchTail(
&prefetch_off_len_pair);
#endif // NDEBUG
IOOptions opts;
Status s = file->PrepareIOOptions(ro, opts);
// Try file system prefetch
if (!file->use_direct_io() && !force_direct_prefetch) {
if (!file->Prefetch(prefetch_off, prefetch_len, ro.rate_limiter_priority)
.IsNotSupported()) {
if (s.ok() && !file->use_direct_io() && !force_direct_prefetch) {
if (!file->Prefetch(opts, prefetch_off, prefetch_len).IsNotSupported()) {
prefetch_buffer->reset(new FilePrefetchBuffer(
0 /* readahead_size */, 0 /* max_readahead_size */,
false /* enable */, true /* track_min_offset */));
@ -879,12 +880,8 @@ Status BlockBasedTable::PrefetchTail(
nullptr /* fs */, nullptr /* clock */, stats,
FilePrefetchBufferUsage::kTableOpenPrefetchTail));
IOOptions opts;
Status s = file->PrepareIOOptions(ro, opts);
if (s.ok()) {
s = (*prefetch_buffer)
->Prefetch(opts, file, prefetch_off, prefetch_len,
ro.rate_limiter_priority);
s = (*prefetch_buffer)->Prefetch(opts, file, prefetch_off, prefetch_len);
}
return s;
}

2
table/block_based/block_based_table_reader_sync_and_async.h
View File

@ -144,7 +144,7 @@ DEFINE_SYNC_AND_ASYNC(void, BlockBasedTable::RetrieveMultipleBlocks)
if (file->use_direct_io()) {
#endif // WITH_COROUTINES
s = file->MultiRead(opts, &read_reqs[0], read_reqs.size(),
&direct_io_buf, options.rate_limiter_priority);
&direct_io_buf);
#if defined(WITH_COROUTINES)
} else {
co_await batch->context()->reader().MultiReadAsync(

29
table/block_based/block_prefetcher.cc
View File

@ -12,11 +12,12 @@
#include "table/block_based/block_based_table_reader.h"
namespace ROCKSDB_NAMESPACE {
void BlockPrefetcher::PrefetchIfNeeded(
const BlockBasedTable::Rep* rep, const BlockHandle& handle,
const size_t readahead_size, bool is_for_compaction,
void BlockPrefetcher::PrefetchIfNeeded(const BlockBasedTable::Rep* rep,
const BlockHandle& handle,
const size_t readahead_size,
bool is_for_compaction,
const bool no_sequential_checking,
const Env::IOPriority rate_limiter_priority) {
const ReadOptions& read_options) {
const size_t len = BlockBasedTable::BlockSizeWithTrailer(handle);
const size_t offset = handle.offset();
@ -27,8 +28,12 @@ void BlockPrefetcher::PrefetchIfNeeded(
if (offset + len <= readahead_limit_) {
return;
}
Status s = rep->file->Prefetch(offset, len + compaction_readahead_size_,
rate_limiter_priority);
IOOptions opts;
Status s = rep->file->PrepareIOOptions(read_options, opts);
if (!s.ok()) {
return;
}
s = rep->file->Prefetch(opts, offset, len + compaction_readahead_size_);
if (s.ok()) {
readahead_limit_ = offset + len + compaction_readahead_size_;
return;
@ -117,10 +122,14 @@ void BlockPrefetcher::PrefetchIfNeeded(
// If prefetch is not supported, fall back to use internal prefetch buffer.
// Discarding other return status of Prefetch calls intentionally, as
// we can fallback to reading from disk if Prefetch fails.
Status s = rep->file->Prefetch(
handle.offset(),
BlockBasedTable::BlockSizeWithTrailer(handle) + readahead_size_,
rate_limiter_priority);
IOOptions opts;
Status s = rep->file->PrepareIOOptions(read_options, opts);
if (!s.ok()) {
return;
}
s = rep->file->Prefetch(
opts, handle.offset(),
BlockBasedTable::BlockSizeWithTrailer(handle) + readahead_size_);
if (s.IsNotSupported()) {
rep->CreateFilePrefetchBufferIfNotExists(
initial_auto_readahead_size_, max_auto_readahead_size,

2
table/block_based/block_prefetcher.h
View File

@ -22,7 +22,7 @@ class BlockPrefetcher {
const BlockHandle& handle, size_t readahead_size,
bool is_for_compaction,
const bool no_sequential_checking,
Env::IOPriority rate_limiter_priority);
const ReadOptions& read_options);
FilePrefetchBuffer* prefetch_buffer() { return prefetch_buffer_.get(); }
void UpdateReadPattern(const uint64_t& offset, const size_t& len) {

3
table/block_based/partitioned_filter_block.cc
View File

@ -503,8 +503,7 @@ Status PartitionedFilterBlockReader::CacheDependencies(
s = rep->file->PrepareIOOptions(ro, opts);
if (s.ok()) {
s = prefetch_buffer->Prefetch(opts, rep->file.get(), prefetch_off,
static_cast<size_t>(prefetch_len),
ro.rate_limiter_priority);
static_cast<size_t>(prefetch_len));
}
if (!s.ok()) {
return s;

3
table/block_based/partitioned_index_iterator.cc
View File

@ -91,8 +91,7 @@ void PartitionedIndexIterator::InitPartitionedIndexBlock() {
// Enabled from the very first IO when ReadOptions.readahead_size is set.
block_prefetcher_.PrefetchIfNeeded(
rep, partitioned_index_handle, read_options_.readahead_size,
is_for_compaction, /*no_sequential_checking=*/false,
read_options_.rate_limiter_priority);
is_for_compaction, /*no_sequential_checking=*/false, read_options_);
Status s;
table_->NewDataBlockIterator<IndexBlockIter>(
read_options_, partitioned_index_handle, &block_iter_,

3
table/block_based/partitioned_index_reader.cc
View File

@ -175,8 +175,7 @@ Status PartitionIndexReader::CacheDependencies(
Status s = rep->file->PrepareIOOptions(ro, opts);
if (s.ok()) {
s = prefetch_buffer->Prefetch(opts, rep->file.get(), prefetch_off,
static_cast<size_t>(prefetch_len),
ro.rate_limiter_priority);
static_cast<size_t>(prefetch_len));
}
if (!s.ok()) {
return s;

16
table/block_fetcher.cc
View File

@ -80,11 +80,11 @@ inline bool BlockFetcher::TryGetFromPrefetchBuffer() {
if (read_options_.async_io && !for_compaction_) {
read_from_prefetch_buffer = prefetch_buffer_->TryReadFromCacheAsync(
opts, file_, handle_.offset(), block_size_with_trailer_, &slice_,
&io_s, read_options_.rate_limiter_priority);
&io_s);
} else {
read_from_prefetch_buffer = prefetch_buffer_->TryReadFromCache(
opts, file_, handle_.offset(), block_size_with_trailer_, &slice_,
&io_s, read_options_.rate_limiter_priority, for_compaction_);
&io_s, for_compaction_);
}
if (read_from_prefetch_buffer) {
ProcessTrailerIfPresent();
@ -259,18 +259,18 @@ IOStatus BlockFetcher::ReadBlockContents() {
if (file_->use_direct_io()) {
PERF_TIMER_GUARD(block_read_time);
PERF_CPU_TIMER_GUARD(block_read_cpu_time, nullptr);
io_status_ = file_->Read(
opts, handle_.offset(), block_size_with_trailer_, &slice_, nullptr,
&direct_io_buf_, read_options_.rate_limiter_priority);
io_status_ =
file_->Read(opts, handle_.offset(), block_size_with_trailer_,
&slice_, nullptr, &direct_io_buf_);
PERF_COUNTER_ADD(block_read_count, 1);
used_buf_ = const_cast<char*>(slice_.data());
} else {
PrepareBufferForBlockFromFile();
PERF_TIMER_GUARD(block_read_time);
PERF_CPU_TIMER_GUARD(block_read_cpu_time, nullptr);
io_status_ = file_->Read(opts, handle_.offset(),
block_size_with_trailer_, &slice_, used_buf_,
nullptr, read_options_.rate_limiter_priority);
io_status_ =
file_->Read(opts, handle_.offset(), block_size_with_trailer_,
&slice_, used_buf_, nullptr);
PERF_COUNTER_ADD(block_read_count, 1);
#ifndef NDEBUG
if (slice_.data() == &stack_buf_[0]) {

3
table/cuckoo/cuckoo_table_builder_test.cc
View File

@ -122,8 +122,7 @@ class CuckooBuilderTest : public testing::Test {
for (uint32_t i = 0; i + 1 < table_size + cuckoo_block_size; ++i) {
Slice read_slice;
ASSERT_OK(file_reader->Read(IOOptions(), i * bucket_size, bucket_size,
&read_slice, nullptr, nullptr,
Env::IO_TOTAL /* rate_limiter_priority */));
&read_slice, nullptr, nullptr));
size_t key_idx =
std::find(expected_locations.begin(), expected_locations.end(), i) -
expected_locations.begin();

5
table/cuckoo/cuckoo_table_reader.cc
View File

@ -144,9 +144,8 @@ CuckooTableReader::CuckooTableReader(
*reinterpret_cast<const uint32_t*>(cuckoo_block_size->second.data());
cuckoo_block_bytes_minus_one_ = cuckoo_block_size_ * bucket_length_ - 1;
// TODO: rate limit reads of whole cuckoo tables.
status_ =
file_->Read(IOOptions(), 0, static_cast<size_t>(file_size), &file_data_,
nullptr, nullptr, Env::IO_TOTAL /* rate_limiter_priority */);
status_ = file_->Read(IOOptions(), 0, static_cast<size_t>(file_size),
&file_data_, nullptr, nullptr);
}
Status CuckooTableReader::Get(const ReadOptions& /*readOptions*/,

12
table/format.cc
View File

@ -509,18 +509,16 @@ Status ReadFooterFromFile(const IOOptions& opts, RandomAccessFileReader* file,
// need to pass a timeout at that point
// TODO: rate limit footer reads.
if (prefetch_buffer == nullptr ||
!prefetch_buffer->TryReadFromCache(
opts, file, read_offset, Footer::kMaxEncodedLength, &footer_input,
nullptr, opts.rate_limiter_priority)) {
!prefetch_buffer->TryReadFromCache(opts, file, read_offset,
Footer::kMaxEncodedLength,
&footer_input, nullptr)) {
if (file->use_direct_io()) {
s = file->Read(opts, read_offset, Footer::kMaxEncodedLength,
&footer_input, nullptr, &internal_buf,
opts.rate_limiter_priority);
&footer_input, nullptr, &internal_buf);
} else {
footer_buf.reserve(Footer::kMaxEncodedLength);
s = file->Read(opts, read_offset, Footer::kMaxEncodedLength,
&footer_input, &footer_buf[0], nullptr,
opts.rate_limiter_priority);
&footer_input, &footer_buf[0], nullptr);
}
if (!s.ok()) return s;
}

3
table/mock_table.cc
View File

@ -305,8 +305,7 @@ Status MockTableFactory::GetIDFromFile(RandomAccessFileReader* file,
uint32_t* id) const {
char buf[4];
Slice result;
Status s = file->Read(IOOptions(), 0, 4, &result, buf, nullptr,
Env::IO_TOTAL /* rate_limiter_priority */);
Status s = file->Read(IOOptions(), 0, 4, &result, buf, nullptr);
assert(result.size() == 4);
*id = DecodeFixed32(buf);
return s;

3
table/plain/plain_table_key_coding.cc
View File

@ -215,8 +215,7 @@ bool PlainTableFileReader::ReadNonMmap(uint32_t file_offset, uint32_t len,
// TODO: rate limit plain table reads.
Status s =
file_info_->file->Read(IOOptions(), file_offset, size_to_read,
&read_result, new_buffer->buf.get(), nullptr,
Env::IO_TOTAL /* rate_limiter_priority */);
&read_result, new_buffer->buf.get(), nullptr);
if (!s.ok()) {
status_ = s;
return false;

6
table/plain/plain_table_reader.cc
View File

@ -284,9 +284,9 @@ void PlainTableReader::FillBloom(const std::vector<uint32_t>& prefix_hashes) {
Status PlainTableReader::MmapDataIfNeeded() {
if (file_info_.is_mmap_mode) {
// Get mmapped memory.
return file_info_.file->Read(
IOOptions(), 0, static_cast<size_t>(file_size_), &file_info_.file_data,
nullptr, nullptr, Env::IO_TOTAL /* rate_limiter_priority */);
return file_info_.file->Read(IOOptions(), 0,
static_cast<size_t>(file_size_),
&file_info_.file_data, nullptr, nullptr);
}
return Status::OK();
}

3
table/sst_file_dumper.cc
View File

@ -109,8 +109,7 @@ Status SstFileDumper::GetTableReader(const std::string& file_path) {
uint64_t prefetch_off = file_size - prefetch_size;
IOOptions opts;
s = prefetch_buffer.Prefetch(opts, file_.get(), prefetch_off,
static_cast<size_t>(prefetch_size),
Env::IO_TOTAL /* rate_limiter_priority */);
static_cast<size_t>(prefetch_size));
s = ReadFooterFromFile(opts, file_.get(), *fs, &prefetch_buffer, file_size,
&footer);

14
table/table_test.cc
View File

@ -1330,7 +1330,7 @@ class FileChecksumTestHelper {
uint64_t offset = 0;
Status s;
s = file_reader_->Read(IOOptions(), offset, 2048, &result, scratch.get(),
nullptr, Env::IO_TOTAL /* rate_limiter_priority */);
nullptr);
if (!s.ok()) {
return s;
}
@ -1338,8 +1338,7 @@ class FileChecksumTestHelper {
file_checksum_generator->Update(scratch.get(), result.size());
offset += static_cast<uint64_t>(result.size());
s = file_reader_->Read(IOOptions(), offset, 2048, &result, scratch.get(),
nullptr,
Env::IO_TOTAL /* rate_limiter_priority */);
nullptr);
if (!s.ok()) {
return s;
}
@ -5396,16 +5395,13 @@ TEST_F(BBTTailPrefetchTest, FilePrefetchBufferMinOffset) {
IOOptions opts;
buffer.TryReadFromCache(opts, nullptr /* reader */, 500 /* offset */,
10 /* n */, nullptr /* result */,
nullptr /* status */,
Env::IO_TOTAL /* rate_limiter_priority */);
nullptr /* status */);
buffer.TryReadFromCache(opts, nullptr /* reader */, 480 /* offset */,
10 /* n */, nullptr /* result */,
nullptr /* status */,
Env::IO_TOTAL /* rate_limiter_priority */);
nullptr /* status */);
buffer.TryReadFromCache(opts, nullptr /* reader */, 490 /* offset */,
10 /* n */, nullptr /* result */,
nullptr /* status */,
Env::IO_TOTAL /* rate_limiter_priority */);
nullptr /* status */);
ASSERT_EQ(480, buffer.min_offset_read());
}

3
tools/db_crashtest.py
View File

@ -169,6 +169,7 @@ default_params = {
),
"level_compaction_dynamic_level_bytes": lambda: random.randint(0, 1),
"verify_checksum_one_in": 1000000,
"verify_file_checksums_one_in": 1000000,
"verify_db_one_in": 100000,
"continuous_verification_interval": 0,
"max_key_len": 3,
@ -658,6 +659,8 @@ def finalize_and_sanitize(src_params):
dest_params["ingest_external_file_one_in"] = 0
dest_params["use_merge"] = 0
dest_params["use_full_merge_v1"] = 0
if dest_params["file_checksum_impl"] == "none":
dest_params["verify_file_checksums_one_in"] = 0
return dest_params

1
unreleased_history/behavior_changes/more_sst_read_micros.md Normal file
View File

@ -0,0 +1 @@
Statistics `rocksdb.sst.read.micros` now includes time spent on multi read and async read into the file

1
unreleased_history/new_features/user_read_io_activity_stats.md Normal file
View File

@ -0,0 +1 @@
New statistics `rocksdb.file.read.{db.open|get|multiget|db.iterator|verify.checksum|verify.file.checksums}.micros` measure read time of block-based SST tables or blob files during db open, `Get()`, `MultiGet()`, using db iterator, `VerifyFileChecksums()` and `VerifyChecksum()`. They require stats level greater than `StatsLevel::kExceptDetailedTimers`.

9
util/thread_operation.h
View File

@ -39,7 +39,14 @@ static OperationInfo global_operation_table[] = {
{ThreadStatus::OP_UNKNOWN, ""},
{ThreadStatus::OP_COMPACTION, "Compaction"},
{ThreadStatus::OP_FLUSH, "Flush"},
{ThreadStatus::OP_DBOPEN, "DBOpen"}};
{ThreadStatus::OP_DBOPEN, "DBOpen"},
{ThreadStatus::OP_GET, "Get"},
{ThreadStatus::OP_MULTIGET, "MultiGet"},
{ThreadStatus::OP_DBITERATOR, "DBIterator"},
{ThreadStatus::OP_VERIFY_DB_CHECKSUM, "VerifyDBChecksum"},
{ThreadStatus::OP_VERIFY_FILE_CHECKSUMS, "VerifyFileChecksums"},
};
struct OperationStageInfo {
const ThreadStatus::OperationStage stage;

82
utilities/blob_db/blob_db_impl.cc
View File

@ -1384,28 +1384,46 @@ Status BlobDBImpl::AppendBlob(const std::shared_ptr<BlobFile>& bfile,
return s;
}
std::vector<Status> BlobDBImpl::MultiGet(const ReadOptions& read_options,
std::vector<Status> BlobDBImpl::MultiGet(const ReadOptions& _read_options,
const std::vector<Slice>& keys,
std::vector<std::string>* values) {
StopWatch multiget_sw(clock_, statistics_, BLOB_DB_MULTIGET_MICROS);
RecordTick(statistics_, BLOB_DB_NUM_MULTIGET);
// Get a snapshot to avoid blob file get deleted between we
// fetch and index entry and reading from the file.
ReadOptions ro(read_options);
bool snapshot_created = SetSnapshotIfNeeded(&ro);
std::vector<Status> statuses;
statuses.reserve(keys.size());
std::size_t num_keys = keys.size();
statuses.reserve(num_keys);
if (_read_options.io_activity != Env::IOActivity::kUnknown &&
_read_options.io_activity != Env::IOActivity::kMultiGet) {
Status s = Status::InvalidArgument(
"Can only call MultiGet with `ReadOptions::io_activity` is "
"`Env::IOActivity::kUnknown` or `Env::IOActivity::kMultiGet`");
for (size_t i = 0; i < num_keys; ++i) {
statuses.push_back(s);
}
return statuses;
}
ReadOptions read_options(_read_options);
if (read_options.io_activity == Env::IOActivity::kUnknown) {
read_options.io_activity = Env::IOActivity::kMultiGet;
}
bool snapshot_created = SetSnapshotIfNeeded(&read_options);
values->clear();
values->reserve(keys.size());
PinnableSlice value;
for (size_t i = 0; i < keys.size(); i++) {
statuses.push_back(Get(ro, DefaultColumnFamily(), keys[i], &value));
statuses.push_back(
GetImpl(read_options, DefaultColumnFamily(), keys[i], &value));
values->push_back(value.ToString());
value.Reset();
}
if (snapshot_created) {
db_->ReleaseSnapshot(ro.snapshot);
db_->ReleaseSnapshot(read_options.snapshot);
}
return statuses;
}
@ -1544,12 +1562,12 @@ Status BlobDBImpl::GetRawBlobFromFile(const Slice& key, uint64_t file_number,
if (reader->use_direct_io()) {
s = reader->Read(IOOptions(), record_offset,
static_cast<size_t>(record_size), &blob_record, nullptr,
&aligned_buf, Env::IO_TOTAL /* rate_limiter_priority */);
&aligned_buf);
} else {
buf.reserve(static_cast<size_t>(record_size));
s = reader->Read(IOOptions(), record_offset,
static_cast<size_t>(record_size), &blob_record, &buf[0],
nullptr, Env::IO_TOTAL /* rate_limiter_priority */);
nullptr);
}
RecordTick(statistics_, BLOB_DB_BLOB_FILE_BYTES_READ, blob_record.size());
}
@ -1609,16 +1627,36 @@ Status BlobDBImpl::GetRawBlobFromFile(const Slice& key, uint64_t file_number,
return Status::OK();
}
Status BlobDBImpl::Get(const ReadOptions& read_options,
Status BlobDBImpl::Get(const ReadOptions& _read_options,
ColumnFamilyHandle* column_family, const Slice& key,
PinnableSlice* value) {
return Get(read_options, column_family, key, value,
static_cast<uint64_t*>(nullptr) /*expiration*/);
if (_read_options.io_activity != Env::IOActivity::kUnknown &&
_read_options.io_activity != Env::IOActivity::kGet) {
return Status::InvalidArgument(
"Can only call Get with `ReadOptions::io_activity` is "
"`Env::IOActivity::kUnknown` or `Env::IOActivity::kGet`");
}
ReadOptions read_options(_read_options);
if (read_options.io_activity == Env::IOActivity::kUnknown) {
read_options.io_activity = Env::IOActivity::kGet;
}
return GetImpl(read_options, column_family, key, value);
}
Status BlobDBImpl::Get(const ReadOptions& read_options,
Status BlobDBImpl::Get(const ReadOptions& _read_options,
ColumnFamilyHandle* column_family, const Slice& key,
PinnableSlice* value, uint64_t* expiration) {
if (_read_options.io_activity != Env::IOActivity::kUnknown &&
_read_options.io_activity != Env::IOActivity::kGet) {
return Status::InvalidArgument(
"Can only call Get with `ReadOptions::io_activity` is "
"`Env::IOActivity::kUnknown` or `Env::IOActivity::kGet`");
}
ReadOptions read_options(_read_options);
if (read_options.io_activity == Env::IOActivity::kUnknown) {
read_options.io_activity = Env::IOActivity::kGet;
}
StopWatch get_sw(clock_, statistics_, BLOB_DB_GET_MICROS);
RecordTick(statistics_, BLOB_DB_NUM_GET);
return GetImpl(read_options, column_family, key, value, expiration);
@ -1631,11 +1669,6 @@ Status BlobDBImpl::GetImpl(const ReadOptions& read_options,
return Status::NotSupported(
"Blob DB doesn't support non-default column family.");
}
if (read_options.io_activity != Env::IOActivity::kUnknown) {
return Status::InvalidArgument(
"Cannot call Get with `ReadOptions::io_activity` != "
"`Env::IOActivity::kUnknown`");
}
// Get a snapshot to avoid blob file get deleted between we
// fetch and index entry and reading from the file.
// TODO(yiwu): For Get() retry if file not found would be a simpler strategy.
@ -2040,11 +2073,16 @@ void BlobDBImpl::CopyBlobFiles(
}
}
Iterator* BlobDBImpl::NewIterator(const ReadOptions& read_options) {
if (read_options.io_activity != Env::IOActivity::kUnknown) {
Iterator* BlobDBImpl::NewIterator(const ReadOptions& _read_options) {
if (_read_options.io_activity != Env::IOActivity::kUnknown &&
_read_options.io_activity != Env::IOActivity::kDBIterator) {
return NewErrorIterator(Status::InvalidArgument(
"Cannot call NewIterator with `ReadOptions::io_activity` != "
"`Env::IOActivity::kUnknown`"));
"Can only call NewIterator with `ReadOptions::io_activity` is "
"`Env::IOActivity::kUnknown` or `Env::IOActivity::kDBIterator`"));
}
ReadOptions read_options(_read_options);
if (read_options.io_activity == Env::IOActivity::kUnknown) {
read_options.io_activity = Env::IOActivity::kDBIterator;
}
auto* cfd =
static_cast_with_check<ColumnFamilyHandleImpl>(DefaultColumnFamily())

13
utilities/blob_db/blob_db_impl.h
View File

@ -103,12 +103,13 @@ class BlobDBImpl : public BlobDB {
const Slice& value) override;
using BlobDB::Get;
Status Get(const ReadOptions& read_options, ColumnFamilyHandle* column_family,
const Slice& key, PinnableSlice* value) override;
Status Get(const ReadOptions& _read_options,
ColumnFamilyHandle* column_family, const Slice& key,
PinnableSlice* value) override;
Status Get(const ReadOptions& read_options, ColumnFamilyHandle* column_family,
const Slice& key, PinnableSlice* value,
uint64_t* expiration) override;
Status Get(const ReadOptions& _read_options,
ColumnFamilyHandle* column_family, const Slice& key,
PinnableSlice* value, uint64_t* expiration) override;
using BlobDB::NewIterator;
virtual Iterator* NewIterator(const ReadOptions& read_options) override;
@ -123,7 +124,7 @@ class BlobDBImpl : public BlobDB {
using BlobDB::MultiGet;
virtual std::vector<Status> MultiGet(
const ReadOptions& read_options, const std::vector<Slice>& keys,
const ReadOptions& _read_options, const std::vector<Slice>& keys,
std::vector<std::string>* values) override;
using BlobDB::Write;

5
utilities/blob_db/blob_dump_tool.cc
View File

@ -102,8 +102,8 @@ Status BlobDumpTool::Read(uint64_t offset, size_t size, Slice* result) {
}
buffer_.reset(new char[buffer_size_]);
}
Status s = reader_->Read(IOOptions(), offset, size, result, buffer_.get(),
nullptr, Env::IO_TOTAL /* rate_limiter_priority */);
Status s =
reader_->Read(IOOptions(), offset, size, result, buffer_.get(), nullptr);
if (!s.ok()) {
return s;
}
@ -277,4 +277,3 @@ std::string BlobDumpTool::GetString(std::pair<T, T> p) {
} // namespace blob_db
} // namespace ROCKSDB_NAMESPACE

17
utilities/blob_db/blob_file.cc
View File

@ -114,13 +114,11 @@ Status BlobFile::ReadFooter(BlobLogFooter* bf) {
// TODO: rate limit reading footers from blob files.
if (ra_file_reader_->use_direct_io()) {
s = ra_file_reader_->Read(IOOptions(), footer_offset, BlobLogFooter::kSize,
&result, nullptr, &aligned_buf,
Env::IO_TOTAL /* rate_limiter_priority */);
&result, nullptr, &aligned_buf);
} else {
buf.reserve(BlobLogFooter::kSize + 10);
s = ra_file_reader_->Read(IOOptions(), footer_offset, BlobLogFooter::kSize,
&result, &buf[0], nullptr,
Env::IO_TOTAL /* rate_limiter_priority */);
&result, &buf[0], nullptr);
}
if (!s.ok()) return s;
if (result.size() != BlobLogFooter::kSize) {
@ -238,13 +236,11 @@ Status BlobFile::ReadMetadata(const std::shared_ptr<FileSystem>& fs,
// TODO: rate limit reading headers from blob files.
if (file_reader->use_direct_io()) {
s = file_reader->Read(IOOptions(), 0, BlobLogHeader::kSize, &header_slice,
nullptr, &aligned_buf,
Env::IO_TOTAL /* rate_limiter_priority */);
nullptr, &aligned_buf);
} else {
header_buf.reserve(BlobLogHeader::kSize);
s = file_reader->Read(IOOptions(), 0, BlobLogHeader::kSize, &header_slice,
&header_buf[0], nullptr,
Env::IO_TOTAL /* rate_limiter_priority */);
&header_buf[0], nullptr);
}
if (!s.ok()) {
ROCKS_LOG_ERROR(
@ -281,13 +277,12 @@ Status BlobFile::ReadMetadata(const std::shared_ptr<FileSystem>& fs,
if (file_reader->use_direct_io()) {
s = file_reader->Read(IOOptions(), file_size - BlobLogFooter::kSize,
BlobLogFooter::kSize, &footer_slice, nullptr,
&aligned_buf,
Env::IO_TOTAL /* rate_limiter_priority */);
&aligned_buf);
} else {
footer_buf.reserve(BlobLogFooter::kSize);
s = file_reader->Read(IOOptions(), file_size - BlobLogFooter::kSize,
BlobLogFooter::kSize, &footer_slice, &footer_buf[0],
nullptr, Env::IO_TOTAL /* rate_limiter_priority */);
nullptr);
}
if (!s.ok()) {
ROCKS_LOG_ERROR(

3
utilities/cache_dump_load_impl.h
View File

@ -249,8 +249,7 @@ class FromFileCacheDumpReader : public CacheDumpReader {
while (to_read > 0) {
io_s = file_reader_->Read(IOOptions(), offset_, to_read, &result_,
buffer_, nullptr,
Env::IO_TOTAL /* rate_limiter_priority */);
buffer_, nullptr);
if (!io_s.ok()) {
return io_s;
}

3
utilities/persistent_cache/block_cache_tier_file.cc
View File

@ -236,7 +236,7 @@ bool RandomAccessCacheFile::Read(const LBA& lba, Slice* key, Slice* val,
Slice result;
Status s = freader_->Read(IOOptions(), lba.off_, lba.size_, &result, scratch,
nullptr, Env::IO_TOTAL /* rate_limiter_priority */);
nullptr);
if (!s.ok()) {
Error(log_, "Error reading from file %s. %s", Path().c_str(),
s.ToString().c_str());
@ -605,4 +605,3 @@ void ThreadedWriter::DispatchIO(const IO& io) {
}
} // namespace ROCKSDB_NAMESPACE

5
utilities/trace/file_trace_reader_writer.cc
View File

@ -42,8 +42,7 @@ Status FileTraceReader::Reset() {
Status FileTraceReader::Read(std::string* data) {
assert(file_reader_ != nullptr);
Status s = file_reader_->Read(IOOptions(), offset_, kTraceMetadataSize,
&result_, buffer_, nullptr,
Env::IO_TOTAL /* rate_limiter_priority */);
&result_, buffer_, nullptr);
if (!s.ok()) {
return s;
}
@ -68,7 +67,7 @@ Status FileTraceReader::Read(std::string* data) {
bytes_to_read > kBufferSize ? kBufferSize : bytes_to_read;
while (to_read > 0) {
s = file_reader_->Read(IOOptions(), offset_, to_read, &result_, buffer_,
nullptr, Env::IO_TOTAL /* rate_limiter_priority */);
nullptr);
if (!s.ok()) {
return s;
}

94
utilities/transactions/transaction_base.cc
View File

@ -232,27 +232,56 @@ Status TransactionBaseImpl::PopSavePoint() {
return write_batch_.PopSavePoint();
}
Status TransactionBaseImpl::Get(const ReadOptions& read_options,
Status TransactionBaseImpl::Get(const ReadOptions& _read_options,
ColumnFamilyHandle* column_family,
const Slice& key, std::string* value) {
if (read_options.io_activity != Env::IOActivity::kUnknown) {
if (_read_options.io_activity != Env::IOActivity::kUnknown &&
_read_options.io_activity != Env::IOActivity::kGet) {
return Status::InvalidArgument(
"Cannot call Get with `ReadOptions::io_activity` != "
"`Env::IOActivity::kUnknown`");
"Can only call Get with `ReadOptions::io_activity` is "
"`Env::IOActivity::kUnknown` or `Env::IOActivity::kGet`");
}
ReadOptions read_options(_read_options);
if (read_options.io_activity == Env::IOActivity::kUnknown) {
read_options.io_activity = Env::IOActivity::kGet;
}
auto s = GetImpl(read_options, column_family, key, value);
return s;
}
Status TransactionBaseImpl::GetImpl(const ReadOptions& read_options,
ColumnFamilyHandle* column_family,
const Slice& key, std::string* value) {
assert(value != nullptr);
PinnableSlice pinnable_val(value);
assert(!pinnable_val.IsPinned());
auto s = Get(read_options, column_family, key, &pinnable_val);
auto s = GetImpl(read_options, column_family, key, &pinnable_val);
if (s.ok() && pinnable_val.IsPinned()) {
value->assign(pinnable_val.data(), pinnable_val.size());
} // else value is already assigned
return s;
}
Status TransactionBaseImpl::Get(const ReadOptions& read_options,
Status TransactionBaseImpl::Get(const ReadOptions& _read_options,
ColumnFamilyHandle* column_family,
const Slice& key, PinnableSlice* pinnable_val) {
if (_read_options.io_activity != Env::IOActivity::kUnknown &&
_read_options.io_activity != Env::IOActivity::kGet) {
return Status::InvalidArgument(
"Can only call Get with `ReadOptions::io_activity` is "
"`Env::IOActivity::kUnknown` or `Env::IOActivity::kGet`");
}
ReadOptions read_options(_read_options);
if (read_options.io_activity == Env::IOActivity::kUnknown) {
read_options.io_activity = Env::IOActivity::kGet;
}
return GetImpl(read_options, column_family, key, pinnable_val);
}
Status TransactionBaseImpl::GetImpl(const ReadOptions& read_options,
ColumnFamilyHandle* column_family,
const Slice& key,
PinnableSlice* pinnable_val) {
return write_batch_.GetFromBatchAndDB(db_, read_options, column_family, key,
pinnable_val);
}
@ -279,7 +308,7 @@ Status TransactionBaseImpl::GetForUpdate(const ReadOptions& read_options,
assert(value != nullptr);
PinnableSlice pinnable_val(value);
assert(!pinnable_val.IsPinned());
s = Get(read_options, column_family, key, &pinnable_val);
s = GetImpl(read_options, column_family, key, &pinnable_val);
if (s.ok() && pinnable_val.IsPinned()) {
value->assign(pinnable_val.data(), pinnable_val.size());
} // else value is already assigned
@ -307,39 +336,63 @@ Status TransactionBaseImpl::GetForUpdate(const ReadOptions& read_options,
TryLock(column_family, key, true /* read_only */, exclusive, do_validate);
if (s.ok() && pinnable_val != nullptr) {
s = Get(read_options, column_family, key, pinnable_val);
s = GetImpl(read_options, column_family, key, pinnable_val);
}
return s;
}
std::vector<Status> TransactionBaseImpl::MultiGet(
const ReadOptions& read_options,
const ReadOptions& _read_options,
const std::vector<ColumnFamilyHandle*>& column_family,
const std::vector<Slice>& keys, std::vector<std::string>* values) {
size_t num_keys = keys.size();
if (read_options.io_activity != Env::IOActivity::kUnknown) {
std::vector<Status> stat_list(num_keys);
if (_read_options.io_activity != Env::IOActivity::kUnknown &&
_read_options.io_activity != Env::IOActivity::kMultiGet) {
Status s = Status::InvalidArgument(
"Cannot call MultiGet with `ReadOptions::io_activity` != "
"`Env::IOActivity::kUnknown`");
return std::vector<Status>(num_keys, s);
"Can only call MultiGet with `ReadOptions::io_activity` is "
"`Env::IOActivity::kUnknown` or `Env::IOActivity::kMultiGet`");
for (size_t i = 0; i < num_keys; ++i) {
stat_list[i] = s;
}
return stat_list;
}
ReadOptions read_options(_read_options);
if (read_options.io_activity == Env::IOActivity::kUnknown) {
read_options.io_activity = Env::IOActivity::kMultiGet;
}
values->resize(num_keys);
std::vector<Status> stat_list(num_keys);
for (size_t i = 0; i < num_keys; ++i) {
stat_list[i] = Get(read_options, column_family[i], keys[i], &(*values)[i]);
stat_list[i] =
GetImpl(read_options, column_family[i], keys[i], &(*values)[i]);
}
return stat_list;
}
void TransactionBaseImpl::MultiGet(const ReadOptions& read_options,
void TransactionBaseImpl::MultiGet(const ReadOptions& _read_options,
ColumnFamilyHandle* column_family,
const size_t num_keys, const Slice* keys,
PinnableSlice* values, Status* statuses,
const bool sorted_input) {
assert(read_options.io_activity == Env::IOActivity::kUnknown);
if (_read_options.io_activity != Env::IOActivity::kUnknown &&
_read_options.io_activity != Env::IOActivity::kMultiGet) {
Status s = Status::InvalidArgument(
"Can only call MultiGet with `ReadOptions::io_activity` is "
"`Env::IOActivity::kUnknown` or `Env::IOActivity::kMultiGet`");
for (size_t i = 0; i < num_keys; ++i) {
if (statuses[i].ok()) {
statuses[i] = s;
}
}
return;
}
ReadOptions read_options(_read_options);
if (read_options.io_activity == Env::IOActivity::kUnknown) {
read_options.io_activity = Env::IOActivity::kMultiGet;
}
write_batch_.MultiGetFromBatchAndDB(db_, read_options, column_family,
num_keys, keys, values, statuses,
sorted_input);
@ -349,7 +402,6 @@ std::vector<Status> TransactionBaseImpl::MultiGetForUpdate(
const ReadOptions& read_options,
const std::vector<ColumnFamilyHandle*>& column_family,
const std::vector<Slice>& keys, std::vector<std::string>* values) {
// Regardless of whether the MultiGet succeeded, track these keys.
size_t num_keys = keys.size();
if (read_options.io_activity != Env::IOActivity::kUnknown) {
Status s = Status::InvalidArgument(
@ -357,6 +409,7 @@ std::vector<Status> TransactionBaseImpl::MultiGetForUpdate(
"`Env::IOActivity::kUnknown`");
return std::vector<Status>(num_keys, s);
}
// Regardless of whether the MultiGet succeeded, track these keys.
values->resize(num_keys);
// Lock all keys
@ -372,7 +425,8 @@ std::vector<Status> TransactionBaseImpl::MultiGetForUpdate(
// TODO(agiardullo): optimize multiget?
std::vector<Status> stat_list(num_keys);
for (size_t i = 0; i < num_keys; ++i) {
stat_list[i] = Get(read_options, column_family[i], keys[i], &(*values)[i]);
stat_list[i] =
GetImpl(read_options, column_family[i], keys[i], &(*values)[i]);
}
return stat_list;

27
utilities/transactions/transaction_base.h
View File

@ -53,11 +53,13 @@ class TransactionBaseImpl : public Transaction {
Status PopSavePoint() override;
using Transaction::Get;
Status Get(const ReadOptions& options, ColumnFamilyHandle* column_family,
const Slice& key, std::string* value) override;
Status Get(const ReadOptions& _read_options,
ColumnFamilyHandle* column_family, const Slice& key,
std::string* value) override;
Status Get(const ReadOptions& options, ColumnFamilyHandle* column_family,
const Slice& key, PinnableSlice* value) override;
Status Get(const ReadOptions& _read_options,
ColumnFamilyHandle* column_family, const Slice& key,
PinnableSlice* value) override;
Status Get(const ReadOptions& options, const Slice& key,
std::string* value) override {
@ -84,7 +86,7 @@ class TransactionBaseImpl : public Transaction {
using Transaction::MultiGet;
std::vector<Status> MultiGet(
const ReadOptions& options,
const ReadOptions& _read_options,
const std::vector<ColumnFamilyHandle*>& column_family,
const std::vector<Slice>& keys,
std::vector<std::string>* values) override;
@ -98,9 +100,10 @@ class TransactionBaseImpl : public Transaction {
keys, values);
}
void MultiGet(const ReadOptions& options, ColumnFamilyHandle* column_family,
const size_t num_keys, const Slice* keys, PinnableSlice* values,
Status* statuses, const bool sorted_input = false) override;
void MultiGet(const ReadOptions& _read_options,
ColumnFamilyHandle* column_family, const size_t num_keys,
const Slice* keys, PinnableSlice* values, Status* statuses,
const bool sorted_input = false) override;
using Transaction::MultiGetForUpdate;
std::vector<Status> MultiGetForUpdate(
@ -260,6 +263,13 @@ class TransactionBaseImpl : public Transaction {
LockTracker& GetTrackedLocks() { return *tracked_locks_; }
protected:
Status GetImpl(const ReadOptions& options, ColumnFamilyHandle* column_family,
const Slice& key, std::string* value) override;
virtual Status GetImpl(const ReadOptions& options,
ColumnFamilyHandle* column_family, const Slice& key,
PinnableSlice* value) override;
// Add a key to the list of tracked keys.
//
// seqno is the earliest seqno this key was involved with this transaction.
@ -379,4 +389,3 @@ class TransactionBaseImpl : public Transaction {
};
} // namespace ROCKSDB_NAMESPACE

52
utilities/transactions/write_prepared_txn.cc
View File

@ -39,20 +39,37 @@ void WritePreparedTxn::Initialize(const TransactionOptions& txn_options) {
prepare_batch_cnt_ = 0;
}
void WritePreparedTxn::MultiGet(const ReadOptions& options,
void WritePreparedTxn::MultiGet(const ReadOptions& _read_options,
ColumnFamilyHandle* column_family,
const size_t num_keys, const Slice* keys,
PinnableSlice* values, Status* statuses,
const bool sorted_input) {
assert(options.io_activity == Env::IOActivity::kUnknown);
if (_read_options.io_activity != Env::IOActivity::kUnknown &&
_read_options.io_activity != Env::IOActivity::kMultiGet) {
Status s = Status::InvalidArgument(
"Can only call MultiGet with `ReadOptions::io_activity` is "
"`Env::IOActivity::kUnknown` or `Env::IOActivity::kMultiGet`");
for (size_t i = 0; i < num_keys; ++i) {
if (statuses[i].ok()) {
statuses[i] = s;
}
}
return;
}
ReadOptions read_options(_read_options);
if (read_options.io_activity == Env::IOActivity::kUnknown) {
read_options.io_activity = Env::IOActivity::kMultiGet;
}
SequenceNumber min_uncommitted, snap_seq;
const SnapshotBackup backed_by_snapshot =
wpt_db_->AssignMinMaxSeqs(options.snapshot, &min_uncommitted, &snap_seq);
const SnapshotBackup backed_by_snapshot = wpt_db_->AssignMinMaxSeqs(
read_options.snapshot, &min_uncommitted, &snap_seq);
WritePreparedTxnReadCallback callback(wpt_db_, snap_seq, min_uncommitted,
backed_by_snapshot);
write_batch_.MultiGetFromBatchAndDB(db_, options, column_family, num_keys,
keys, values, statuses, sorted_input,
&callback);
write_batch_.MultiGetFromBatchAndDB(db_, read_options, column_family,
num_keys, keys, values, statuses,
sorted_input, &callback);
if (UNLIKELY(!callback.valid() ||
!wpt_db_->ValidateSnapshot(snap_seq, backed_by_snapshot))) {
wpt_db_->WPRecordTick(TXN_GET_TRY_AGAIN);
@ -62,14 +79,27 @@ void WritePreparedTxn::MultiGet(const ReadOptions& options,
}
}
Status WritePreparedTxn::Get(const ReadOptions& options,
Status WritePreparedTxn::Get(const ReadOptions& _read_options,
ColumnFamilyHandle* column_family,
const Slice& key, PinnableSlice* pinnable_val) {
if (options.io_activity != Env::IOActivity::kUnknown) {
if (_read_options.io_activity != Env::IOActivity::kUnknown &&
_read_options.io_activity != Env::IOActivity::kGet) {
return Status::InvalidArgument(
"Cannot call Get with `ReadOptions::io_activity` != "
"`Env::IOActivity::kUnknown`");
"Can only call Get with `ReadOptions::io_activity` is "
"`Env::IOActivity::kUnknown` or `Env::IOActivity::kGet`");
}
ReadOptions read_options(_read_options);
if (read_options.io_activity == Env::IOActivity::kUnknown) {
read_options.io_activity = Env::IOActivity::kGet;
}
return GetImpl(read_options, column_family, key, pinnable_val);
}
Status WritePreparedTxn::GetImpl(const ReadOptions& options,
ColumnFamilyHandle* column_family,
const Slice& key,
PinnableSlice* pinnable_val) {
SequenceNumber min_uncommitted, snap_seq;
const SnapshotBackup backed_by_snapshot =
wpt_db_->AssignMinMaxSeqs(options.snapshot, &min_uncommitted, &snap_seq);

8
utilities/transactions/write_prepared_txn.h
View File

@ -51,12 +51,12 @@ class WritePreparedTxn : public PessimisticTransaction {
// seq in the WAL that is also published, LastPublishedSequence, as opposed to
// the last seq in the memtable.
using Transaction::Get;
virtual Status Get(const ReadOptions& options,
virtual Status Get(const ReadOptions& _read_options,
ColumnFamilyHandle* column_family, const Slice& key,
PinnableSlice* value) override;
using Transaction::MultiGet;
virtual void MultiGet(const ReadOptions& options,
virtual void MultiGet(const ReadOptions& _read_options,
ColumnFamilyHandle* column_family,
const size_t num_keys, const Slice* keys,
PinnableSlice* values, Status* statuses,
@ -86,6 +86,10 @@ class WritePreparedTxn : public PessimisticTransaction {
friend class WriteUnpreparedTxnDB;
friend class WriteUnpreparedTxn;
using Transaction::GetImpl;
Status GetImpl(const ReadOptions& options, ColumnFamilyHandle* column_family,
const Slice& key, PinnableSlice* value) override;
Status PrepareInternal() override;
Status CommitWithoutPrepareInternal() override;

93
utilities/transactions/write_prepared_txn_db.cc
View File

@ -247,14 +247,26 @@ Status WritePreparedTxnDB::WriteInternal(const WriteOptions& write_options_orig,
return s;
}
Status WritePreparedTxnDB::Get(const ReadOptions& options,
Status WritePreparedTxnDB::Get(const ReadOptions& _read_options,
ColumnFamilyHandle* column_family,
const Slice& key, PinnableSlice* value) {
if (options.io_activity != Env::IOActivity::kUnknown) {
if (_read_options.io_activity != Env::IOActivity::kUnknown &&
_read_options.io_activity != Env::IOActivity::kGet) {
return Status::InvalidArgument(
"Cannot call Get with `ReadOptions::io_activity` != "
"`Env::IOActivity::kUnknown`");
"Can only call Get with `ReadOptions::io_activity` is "
"`Env::IOActivity::kUnknown` or `Env::IOActivity::kGet`");
}
ReadOptions read_options(_read_options);
if (read_options.io_activity == Env::IOActivity::kUnknown) {
read_options.io_activity = Env::IOActivity::kGet;
}
return GetImpl(read_options, column_family, key, value);
}
Status WritePreparedTxnDB::GetImpl(const ReadOptions& options,
ColumnFamilyHandle* column_family,
const Slice& key, PinnableSlice* value) {
SequenceNumber min_uncommitted, snap_seq;
const SnapshotBackup backed_by_snapshot =
AssignMinMaxSeqs(options.snapshot, &min_uncommitted, &snap_seq);
@ -314,16 +326,35 @@ void WritePreparedTxnDB::UpdateCFComparatorMap(ColumnFamilyHandle* h) {
}
std::vector<Status> WritePreparedTxnDB::MultiGet(
const ReadOptions& options,
const ReadOptions& _read_options,
const std::vector<ColumnFamilyHandle*>& column_family,
const std::vector<Slice>& keys, std::vector<std::string>* values) {
assert(values);
size_t num_keys = keys.size();
std::vector<Status> stat_list(num_keys);
if (_read_options.io_activity != Env::IOActivity::kUnknown &&
_read_options.io_activity != Env::IOActivity::kMultiGet) {
Status s = Status::InvalidArgument(
"Can only call MultiGet with `ReadOptions::io_activity` is "
"`Env::IOActivity::kUnknown` or `Env::IOActivity::kMultiGet`");
for (size_t i = 0; i < num_keys; ++i) {
stat_list[i] = s;
}
return stat_list;
}
ReadOptions read_options(_read_options);
if (read_options.io_activity == Env::IOActivity::kUnknown) {
read_options.io_activity = Env::IOActivity::kMultiGet;
}
values->resize(num_keys);
std::vector<Status> stat_list(num_keys);
for (size_t i = 0; i < num_keys; ++i) {
stat_list[i] = this->Get(options, column_family[i], keys[i], &(*values)[i]);
stat_list[i] =
this->GetImpl(read_options, column_family[i], keys[i], &(*values)[i]);
}
return stat_list;
}
@ -346,22 +377,27 @@ static void CleanupWritePreparedTxnDBIterator(void* arg1, void* /*arg2*/) {
}
} // anonymous namespace
Iterator* WritePreparedTxnDB::NewIterator(const ReadOptions& options,
Iterator* WritePreparedTxnDB::NewIterator(const ReadOptions& _read_options,
ColumnFamilyHandle* column_family) {
if (options.io_activity != Env::IOActivity::kUnknown) {
if (_read_options.io_activity != Env::IOActivity::kUnknown &&
_read_options.io_activity != Env::IOActivity::kDBIterator) {
return NewErrorIterator(Status::InvalidArgument(
"Cannot call NewIterator with `ReadOptions::io_activity` != "
"`Env::IOActivity::kUnknown`"));
"Can only call NewIterator with `ReadOptions::io_activity` is "
"`Env::IOActivity::kUnknown` or `Env::IOActivity::kDBIterator`"));
}
ReadOptions read_options(_read_options);
if (read_options.io_activity == Env::IOActivity::kUnknown) {
read_options.io_activity = Env::IOActivity::kDBIterator;
}
constexpr bool expose_blob_index = false;
constexpr bool allow_refresh = false;
std::shared_ptr<ManagedSnapshot> own_snapshot = nullptr;
SequenceNumber snapshot_seq = kMaxSequenceNumber;
SequenceNumber min_uncommitted = 0;
if (options.snapshot != nullptr) {
snapshot_seq = options.snapshot->GetSequenceNumber();
if (read_options.snapshot != nullptr) {
snapshot_seq = read_options.snapshot->GetSequenceNumber();
min_uncommitted =
static_cast_with_check<const SnapshotImpl>(options.snapshot)
static_cast_with_check<const SnapshotImpl>(read_options.snapshot)
->min_uncommitted_;
} else {
auto* snapshot = GetSnapshot();
@ -377,26 +413,37 @@ Iterator* WritePreparedTxnDB::NewIterator(const ReadOptions& options,
static_cast_with_check<ColumnFamilyHandleImpl>(column_family)->cfd();
auto* state =
new IteratorState(this, snapshot_seq, own_snapshot, min_uncommitted);
auto* db_iter =
db_impl_->NewIteratorImpl(options, cfd, snapshot_seq, &state->callback,
expose_blob_index, allow_refresh);
auto* db_iter = db_impl_->NewIteratorImpl(read_options, cfd, snapshot_seq,
&state->callback, expose_blob_index,
allow_refresh);
db_iter->RegisterCleanup(CleanupWritePreparedTxnDBIterator, state, nullptr);
return db_iter;
}
Status WritePreparedTxnDB::NewIterators(
const ReadOptions& options,
const ReadOptions& _read_options,
const std::vector<ColumnFamilyHandle*>& column_families,
std::vector<Iterator*>* iterators) {
if (_read_options.io_activity != Env::IOActivity::kUnknown &&
_read_options.io_activity != Env::IOActivity::kDBIterator) {
return Status::InvalidArgument(
"Can only call NewIterator with `ReadOptions::io_activity` is "
"`Env::IOActivity::kUnknown` or `Env::IOActivity::kDBIterator`");
}
ReadOptions read_options(_read_options);
if (read_options.io_activity == Env::IOActivity::kUnknown) {
read_options.io_activity = Env::IOActivity::kDBIterator;
}
constexpr bool expose_blob_index = false;
constexpr bool allow_refresh = false;
std::shared_ptr<ManagedSnapshot> own_snapshot = nullptr;
SequenceNumber snapshot_seq = kMaxSequenceNumber;
SequenceNumber min_uncommitted = 0;
if (options.snapshot != nullptr) {
snapshot_seq = options.snapshot->GetSequenceNumber();
if (read_options.snapshot != nullptr) {
snapshot_seq = read_options.snapshot->GetSequenceNumber();
min_uncommitted =
static_cast_with_check<const SnapshotImpl>(options.snapshot)
static_cast_with_check<const SnapshotImpl>(read_options.snapshot)
->min_uncommitted_;
} else {
auto* snapshot = GetSnapshot();
@ -414,8 +461,8 @@ Status WritePreparedTxnDB::NewIterators(
static_cast_with_check<ColumnFamilyHandleImpl>(column_family)->cfd();
auto* state =
new IteratorState(this, snapshot_seq, own_snapshot, min_uncommitted);
auto* db_iter =
db_impl_->NewIteratorImpl(options, cfd, snapshot_seq, &state->callback,
auto* db_iter = db_impl_->NewIteratorImpl(read_options, cfd, snapshot_seq,
&state->callback,
expose_blob_index, allow_refresh);
db_iter->RegisterCleanup(CleanupWritePreparedTxnDBIterator, state, nullptr);
iterators->push_back(db_iter);

23
utilities/transactions/write_prepared_txn_db.h
View File

@ -83,24 +83,24 @@ class WritePreparedTxnDB : public PessimisticTransactionDB {
size_t batch_cnt, WritePreparedTxn* txn);
using DB::Get;
virtual Status Get(const ReadOptions& options,
virtual Status Get(const ReadOptions& _read_options,
ColumnFamilyHandle* column_family, const Slice& key,
PinnableSlice* value) override;
using DB::MultiGet;
virtual std::vector<Status> MultiGet(
const ReadOptions& options,
const ReadOptions& _read_options,
const std::vector<ColumnFamilyHandle*>& column_family,
const std::vector<Slice>& keys,
std::vector<std::string>* values) override;
using DB::NewIterator;
virtual Iterator* NewIterator(const ReadOptions& options,
virtual Iterator* NewIterator(const ReadOptions& _read_options,
ColumnFamilyHandle* column_family) override;
using DB::NewIterators;
virtual Status NewIterators(
const ReadOptions& options,
const ReadOptions& _read_options,
const std::vector<ColumnFamilyHandle*>& column_families,
std::vector<Iterator*>* iterators) override;
@ -520,6 +520,21 @@ class WritePreparedTxnDB : public PessimisticTransactionDB {
RecordTick(db_impl_->immutable_db_options_.statistics.get(), ticker_type);
}
Status GetImpl(const ReadOptions& options, ColumnFamilyHandle* column_family,
const Slice& key, std::string* value) {
assert(value != nullptr);
PinnableSlice pinnable_val(value);
assert(!pinnable_val.IsPinned());
auto s = GetImpl(options, column_family, key, &pinnable_val);
if (s.ok() && pinnable_val.IsPinned()) {
value->assign(pinnable_val.data(), pinnable_val.size());
} // else value is already assigned
return s;
}
Status GetImpl(const ReadOptions& options, ColumnFamilyHandle* column_family,
const Slice& key, PinnableSlice* value);
// A heap with the amortized O(1) complexity for erase. It uses one extra heap
// to keep track of erased entries that are not yet on top of the main heap.
class PreparedHeap {

50
utilities/transactions/write_unprepared_txn.cc
View File

@ -943,20 +943,36 @@ Status WriteUnpreparedTxn::PopSavePoint() {
return Status::NotFound();
}
void WriteUnpreparedTxn::MultiGet(const ReadOptions& options,
void WriteUnpreparedTxn::MultiGet(const ReadOptions& _read_options,
ColumnFamilyHandle* column_family,
const size_t num_keys, const Slice* keys,
PinnableSlice* values, Status* statuses,
const bool sorted_input) {
assert(options.io_activity == Env::IOActivity::kUnknown);
if (_read_options.io_activity != Env::IOActivity::kUnknown &&
_read_options.io_activity != Env::IOActivity::kMultiGet) {
Status s = Status::InvalidArgument(
"Can only call MultiGet with `ReadOptions::io_activity` is "
"`Env::IOActivity::kUnknown` or `Env::IOActivity::kMultiGet`");
for (size_t i = 0; i < num_keys; ++i) {
if (statuses[i].ok()) {
statuses[i] = s;
}
}
return;
}
ReadOptions read_options(_read_options);
if (read_options.io_activity == Env::IOActivity::kUnknown) {
read_options.io_activity = Env::IOActivity::kMultiGet;
}
SequenceNumber min_uncommitted, snap_seq;
const SnapshotBackup backed_by_snapshot =
wupt_db_->AssignMinMaxSeqs(options.snapshot, &min_uncommitted, &snap_seq);
const SnapshotBackup backed_by_snapshot = wupt_db_->AssignMinMaxSeqs(
read_options.snapshot, &min_uncommitted, &snap_seq);
WriteUnpreparedTxnReadCallback callback(wupt_db_, snap_seq, min_uncommitted,
unprep_seqs_, backed_by_snapshot);
write_batch_.MultiGetFromBatchAndDB(db_, options, column_family, num_keys,
keys, values, statuses, sorted_input,
&callback);
write_batch_.MultiGetFromBatchAndDB(db_, read_options, column_family,
num_keys, keys, values, statuses,
sorted_input, &callback);
if (UNLIKELY(!callback.valid() ||
!wupt_db_->ValidateSnapshot(snap_seq, backed_by_snapshot))) {
wupt_db_->WPRecordTick(TXN_GET_TRY_AGAIN);
@ -966,14 +982,26 @@ void WriteUnpreparedTxn::MultiGet(const ReadOptions& options,
}
}
Status WriteUnpreparedTxn::Get(const ReadOptions& options,
Status WriteUnpreparedTxn::Get(const ReadOptions& _read_options,
ColumnFamilyHandle* column_family,
const Slice& key, PinnableSlice* value) {
if (options.io_activity != Env::IOActivity::kUnknown) {
if (_read_options.io_activity != Env::IOActivity::kUnknown &&
_read_options.io_activity != Env::IOActivity::kGet) {
return Status::InvalidArgument(
"Cannot call Get with `ReadOptions::io_activity` != "
"`Env::IOActivity::kUnknown`");
"Can only call Get with `ReadOptions::io_activity` is "
"`Env::IOActivity::kUnknown` or `Env::IOActivity::kGet`");
}
ReadOptions read_options(_read_options);
if (read_options.io_activity == Env::IOActivity::kUnknown) {
read_options.io_activity = Env::IOActivity::kGet;
}
return GetImpl(read_options, column_family, key, value);
}
Status WriteUnpreparedTxn::GetImpl(const ReadOptions& options,
ColumnFamilyHandle* column_family,
const Slice& key, PinnableSlice* value) {
SequenceNumber min_uncommitted, snap_seq;
const SnapshotBackup backed_by_snapshot =
wupt_db_->AssignMinMaxSeqs(options.snapshot, &min_uncommitted, &snap_seq);

9
utilities/transactions/write_unprepared_txn.h
View File

@ -184,12 +184,12 @@ class WriteUnpreparedTxn : public WritePreparedTxn {
// Get and GetIterator needs to be overridden so that a ReadCallback to
// handle read-your-own-write is used.
using Transaction::Get;
virtual Status Get(const ReadOptions& options,
virtual Status Get(const ReadOptions& _read_options,
ColumnFamilyHandle* column_family, const Slice& key,
PinnableSlice* value) override;
using Transaction::MultiGet;
virtual void MultiGet(const ReadOptions& options,
virtual void MultiGet(const ReadOptions& _read_options,
ColumnFamilyHandle* column_family,
const size_t num_keys, const Slice* keys,
PinnableSlice* values, Status* statuses,
@ -211,6 +211,10 @@ class WriteUnpreparedTxn : public WritePreparedTxn {
friend class WriteUnpreparedTxnDB;
const std::map<SequenceNumber, size_t>& GetUnpreparedSequenceNumbers();
using Transaction::GetImpl;
Status GetImpl(const ReadOptions& options, ColumnFamilyHandle* column_family,
const Slice& key, PinnableSlice* value) override;
Status WriteRollbackKeys(const LockTracker& tracked_keys,
WriteBatchWithIndex* rollback_batch,
ReadCallback* callback, const ReadOptions& roptions);
@ -336,4 +340,3 @@ class WriteUnpreparedTxn : public WritePreparedTxn {
};
} // namespace ROCKSDB_NAMESPACE

22
utilities/transactions/write_unprepared_txn_db.cc
View File

@ -385,13 +385,19 @@ static void CleanupWriteUnpreparedTxnDBIterator(void* arg1, void* /*arg2*/) {
}
} // anonymous namespace
Iterator* WriteUnpreparedTxnDB::NewIterator(const ReadOptions& options,
Iterator* WriteUnpreparedTxnDB::NewIterator(const ReadOptions& _read_options,
ColumnFamilyHandle* column_family,
WriteUnpreparedTxn* txn) {
if (options.io_activity != Env::IOActivity::kUnknown) {
if (_read_options.io_activity != Env::IOActivity::kUnknown &&
_read_options.io_activity != Env::IOActivity::kDBIterator) {
return NewErrorIterator(Status::InvalidArgument(
"Cannot call NewIterator with `ReadOptions::io_activity` != "
"`Env::IOActivity::kUnknown`"));
"Can only call NewIterator with `ReadOptions::io_activity` is "
"`Env::IOActivity::kUnknown` or `Env::IOActivity::kDBIterator`"));
}
ReadOptions read_options(_read_options);
if (read_options.io_activity == Env::IOActivity::kUnknown) {
read_options.io_activity = Env::IOActivity::kDBIterator;
}
// TODO(lth): Refactor so that this logic is shared with WritePrepared.
constexpr bool expose_blob_index = false;
@ -431,11 +437,11 @@ Iterator* WriteUnpreparedTxnDB::NewIterator(const ReadOptions& options,
// max_visible_seq, and then return the last visible value, so that this
// restriction can be lifted.
const Snapshot* snapshot = nullptr;
if (options.snapshot == nullptr) {
if (read_options.snapshot == nullptr) {
snapshot = GetSnapshot();
own_snapshot = std::make_shared<ManagedSnapshot>(db_impl_, snapshot);
} else {
snapshot = options.snapshot;
snapshot = read_options.snapshot;
}
snapshot_seq = snapshot->GetSequenceNumber();
@ -467,8 +473,8 @@ Iterator* WriteUnpreparedTxnDB::NewIterator(const ReadOptions& options,
auto* state =
new IteratorState(this, snapshot_seq, own_snapshot, min_uncommitted, txn);
auto* db_iter = db_impl_->NewIteratorImpl(
options, cfd, state->MaxVisibleSeq(), &state->callback, expose_blob_index,
allow_refresh);
read_options, cfd, state->MaxVisibleSeq(), &state->callback,
expose_blob_index, allow_refresh);
db_iter->RegisterCleanup(CleanupWriteUnpreparedTxnDBIterator, state, nullptr);
return db_iter;
}

2
utilities/transactions/write_unprepared_txn_db.h
View File

@ -27,7 +27,7 @@ class WriteUnpreparedTxnDB : public WritePreparedTxnDB {
struct IteratorState;
using WritePreparedTxnDB::NewIterator;
Iterator* NewIterator(const ReadOptions& options,
Iterator* NewIterator(const ReadOptions& _read_options,
ColumnFamilyHandle* column_family,
WriteUnpreparedTxn* txn);

15
utilities/ttl/db_ttl_impl.cc
View File

@ -594,14 +594,19 @@ Status DBWithTTLImpl::Write(const WriteOptions& opts, WriteBatch* updates) {
}
}
Iterator* DBWithTTLImpl::NewIterator(const ReadOptions& opts,
Iterator* DBWithTTLImpl::NewIterator(const ReadOptions& _read_options,
ColumnFamilyHandle* column_family) {
if (opts.io_activity != Env::IOActivity::kUnknown) {
if (_read_options.io_activity != Env::IOActivity::kUnknown &&
_read_options.io_activity != Env::IOActivity::kDBIterator) {
return NewErrorIterator(Status::InvalidArgument(
"Cannot call NewIterator with `ReadOptions::io_activity` != "
"`Env::IOActivity::kUnknown`"));
"Can only call NewIterator with `ReadOptions::io_activity` is "
"`Env::IOActivity::kUnknown` or `Env::IOActivity::kDBIterator`"));
}
return new TtlIterator(db_->NewIterator(opts, column_family));
ReadOptions read_options(_read_options);
if (read_options.io_activity == Env::IOActivity::kUnknown) {
read_options.io_activity = Env::IOActivity::kDBIterator;
}
return new TtlIterator(db_->NewIterator(read_options, column_family));
}
void DBWithTTLImpl::SetTtl(ColumnFamilyHandle* h, int32_t ttl) {

2
utilities/ttl/db_ttl_impl.h
View File

@ -78,7 +78,7 @@ class DBWithTTLImpl : public DBWithTTL {
virtual Status Write(const WriteOptions& opts, WriteBatch* updates) override;
using StackableDB::NewIterator;
virtual Iterator* NewIterator(const ReadOptions& opts,
virtual Iterator* NewIterator(const ReadOptions& _read_options,
ColumnFamilyHandle* column_family) override;
virtual DB* GetBaseDB() override { return db_; }

3
utilities/write_batch_with_index/write_batch_with_index.cc
View File

@ -531,7 +531,8 @@ Status WriteBatchWithIndex::GetFromBatchAndDB(
// Did not find key in batch OR could not resolve Merges. Try DB.
if (!callback) {
s = db->Get(read_options, column_family, key, pinnable_val);
s = static_cast_with_check<DBImpl>(db->GetRootDB())
->GetImpl(read_options, column_family, key, pinnable_val);
} else {
DBImpl::GetImplOptions get_impl_options;
get_impl_options.column_family = column_family;