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rocksdb/db/db_test_util.cc
Yanqin Jin a376c22066 Handle rename() failure in non-local FS (#8192) 
Summary:
In a distributed environment, a file `rename()` operation can succeed on server (remote)
side, but the client can somehow return non-ok status to RocksDB. Possible reasons include
network partition, connection issue, etc. This happens in `rocksdb::SetCurrentFile()`, which
can be called in `LogAndApply() -> ProcessManifestWrites()` if RocksDB tries to switch to a
new MANIFEST. We currently always delete the new MANIFEST if an error occurs.

This is problematic in distributed world. If the server-side successfully updates the CURRENT
file via renaming, then a subsequent `DB::Open()` will try to look for the new MANIFEST and fail.

As a fix, we can track the execution result of IO operations on the new MANIFEST.
- If IO operations on the new MANIFEST fail, then we know the CURRENT must point to the original
  MANIFEST. Therefore, it is safe to remove the new MANIFEST.
- If IO operations on the new MANIFEST all succeed, but somehow we end up in the clean up
  code block, then we do not know whether CURRENT points to the new or old MANIFEST. (For local
  POSIX-compliant FS, it should still point to old MANIFEST, but it does not matter if we keep the
  new MANIFEST.) Therefore, we keep the new MANIFEST.
    - Any future `LogAndApply()` will switch to a new MANIFEST and update CURRENT.
    - If process reopens the db immediately after the failure, then the CURRENT file can point
      to either the new MANIFEST or the old one, both of which exist. Therefore, recovery can
      succeed and ignore the other.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/8192

Test Plan: make check

Reviewed By: zhichao-cao

Differential Revision: D27804648

Pulled By: riversand963

fbshipit-source-id: 9c16f2a5ce41bc6aadf085e48449b19ede8423e4
2021-04-19 18:11:13 -07:00

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// 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).
//
// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file. See the AUTHORS file for names of contributors.
#include "db/db_test_util.h"
#include "db/forward_iterator.h"
#include "env/mock_env.h"
#include "rocksdb/convenience.h"
#include "rocksdb/env_encryption.h"
#include "rocksdb/utilities/object_registry.h"
#include "util/random.h"
namespace ROCKSDB_NAMESPACE {
namespace {
int64_t MaybeCurrentTime(Env* env) {
int64_t time = 1337346000; // arbitrary fallback default
env->GetCurrentTime(&time).PermitUncheckedError();
return time;
}
} // namespace
// Special Env used to delay background operations
SpecialEnv::SpecialEnv(Env* base, bool time_elapse_only_sleep)
: EnvWrapper(base),
maybe_starting_time_(MaybeCurrentTime(base)),
rnd_(301),
sleep_counter_(this),
time_elapse_only_sleep_(time_elapse_only_sleep),
no_slowdown_(time_elapse_only_sleep) {
delay_sstable_sync_.store(false, std::memory_order_release);
drop_writes_.store(false, std::memory_order_release);
no_space_.store(false, std::memory_order_release);
non_writable_.store(false, std::memory_order_release);
count_random_reads_ = false;
count_sequential_reads_ = false;
manifest_sync_error_.store(false, std::memory_order_release);
manifest_write_error_.store(false, std::memory_order_release);
log_write_error_.store(false, std::memory_order_release);
no_file_overwrite_.store(false, std::memory_order_release);
random_file_open_counter_.store(0, std::memory_order_relaxed);
delete_count_.store(0, std::memory_order_relaxed);
num_open_wal_file_.store(0);
log_write_slowdown_ = 0;
bytes_written_ = 0;
sync_counter_ = 0;
non_writeable_rate_ = 0;
new_writable_count_ = 0;
non_writable_count_ = 0;
table_write_callback_ = nullptr;
}
DBTestBase::DBTestBase(const std::string path, bool env_do_fsync)
: mem_env_(nullptr), encrypted_env_(nullptr), option_config_(kDefault) {
Env* base_env = Env::Default();
#ifndef ROCKSDB_LITE
const char* test_env_uri = getenv("TEST_ENV_URI");
if (test_env_uri) {
Env* test_env = nullptr;
Status s = Env::LoadEnv(test_env_uri, &test_env, &env_guard_);
base_env = test_env;
EXPECT_OK(s);
EXPECT_NE(Env::Default(), base_env);
}
#endif // !ROCKSDB_LITE
EXPECT_NE(nullptr, base_env);
if (getenv("MEM_ENV")) {
mem_env_ = new MockEnv(base_env);
}
#ifndef ROCKSDB_LITE
if (getenv("ENCRYPTED_ENV")) {
std::shared_ptr<EncryptionProvider> provider;
Status s = EncryptionProvider::CreateFromString(
ConfigOptions(), std::string("test://") + getenv("ENCRYPTED_ENV"),
&provider);
encrypted_env_ = NewEncryptedEnv(mem_env_ ? mem_env_ : base_env, provider);
}
#endif // !ROCKSDB_LITE
env_ = new SpecialEnv(encrypted_env_ ? encrypted_env_
: (mem_env_ ? mem_env_ : base_env));
env_->SetBackgroundThreads(1, Env::LOW);
env_->SetBackgroundThreads(1, Env::HIGH);
env_->skip_fsync_ = !env_do_fsync;
dbname_ = test::PerThreadDBPath(env_, path);
alternative_wal_dir_ = dbname_ + "/wal";
alternative_db_log_dir_ = dbname_ + "/db_log_dir";
auto options = CurrentOptions();
options.env = env_;
auto delete_options = options;
delete_options.wal_dir = alternative_wal_dir_;
EXPECT_OK(DestroyDB(dbname_, delete_options));
// Destroy it for not alternative WAL dir is used.
EXPECT_OK(DestroyDB(dbname_, options));
db_ = nullptr;
Reopen(options);
Random::GetTLSInstance()->Reset(0xdeadbeef);
}
DBTestBase::~DBTestBase() {
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->LoadDependency({});
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->ClearAllCallBacks();
Close();
Options options;
options.db_paths.emplace_back(dbname_, 0);
options.db_paths.emplace_back(dbname_ + "_2", 0);
options.db_paths.emplace_back(dbname_ + "_3", 0);
options.db_paths.emplace_back(dbname_ + "_4", 0);
options.env = env_;
if (getenv("KEEP_DB")) {
printf("DB is still at %s\n", dbname_.c_str());
} else {
EXPECT_OK(DestroyDB(dbname_, options));
}
delete env_;
}
bool DBTestBase::ShouldSkipOptions(int option_config, int skip_mask) {
#ifdef ROCKSDB_LITE
// These options are not supported in ROCKSDB_LITE
if (option_config == kHashSkipList ||
option_config == kPlainTableFirstBytePrefix ||
option_config == kPlainTableCappedPrefix ||
option_config == kPlainTableCappedPrefixNonMmap ||
option_config == kPlainTableAllBytesPrefix ||
option_config == kVectorRep || option_config == kHashLinkList ||
option_config == kUniversalCompaction ||
option_config == kUniversalCompactionMultiLevel ||
option_config == kUniversalSubcompactions ||
option_config == kFIFOCompaction ||
option_config == kConcurrentSkipList) {
return true;
}
#endif
if ((skip_mask & kSkipUniversalCompaction) &&
(option_config == kUniversalCompaction ||
option_config == kUniversalCompactionMultiLevel ||
option_config == kUniversalSubcompactions)) {
return true;
}
if ((skip_mask & kSkipMergePut) && option_config == kMergePut) {
return true;
}
if ((skip_mask & kSkipNoSeekToLast) &&
(option_config == kHashLinkList || option_config == kHashSkipList)) {
return true;
}
if ((skip_mask & kSkipPlainTable) &&
(option_config == kPlainTableAllBytesPrefix ||
option_config == kPlainTableFirstBytePrefix ||
option_config == kPlainTableCappedPrefix ||
option_config == kPlainTableCappedPrefixNonMmap)) {
return true;
}
if ((skip_mask & kSkipHashIndex) &&
(option_config == kBlockBasedTableWithPrefixHashIndex ||
option_config == kBlockBasedTableWithWholeKeyHashIndex)) {
return true;
}
if ((skip_mask & kSkipFIFOCompaction) && option_config == kFIFOCompaction) {
return true;
}
if ((skip_mask & kSkipMmapReads) && option_config == kWalDirAndMmapReads) {
return true;
}
return false;
}
// Switch to a fresh database with the next option configuration to
// test. Return false if there are no more configurations to test.
bool DBTestBase::ChangeOptions(int skip_mask) {
for (option_config_++; option_config_ < kEnd; option_config_++) {
if (ShouldSkipOptions(option_config_, skip_mask)) {
continue;
}
break;
}
if (option_config_ >= kEnd) {
Destroy(last_options_);
return false;
} else {
auto options = CurrentOptions();
options.create_if_missing = true;
DestroyAndReopen(options);
return true;
}
}
// Switch between different compaction styles.
bool DBTestBase::ChangeCompactOptions() {
if (option_config_ == kDefault) {
option_config_ = kUniversalCompaction;
Destroy(last_options_);
auto options = CurrentOptions();
options.create_if_missing = true;
Reopen(options);
return true;
} else if (option_config_ == kUniversalCompaction) {
option_config_ = kUniversalCompactionMultiLevel;
Destroy(last_options_);
auto options = CurrentOptions();
options.create_if_missing = true;
Reopen(options);
return true;
} else if (option_config_ == kUniversalCompactionMultiLevel) {
option_config_ = kLevelSubcompactions;
Destroy(last_options_);
auto options = CurrentOptions();
assert(options.max_subcompactions > 1);
Reopen(options);
return true;
} else if (option_config_ == kLevelSubcompactions) {
option_config_ = kUniversalSubcompactions;
Destroy(last_options_);
auto options = CurrentOptions();
assert(options.max_subcompactions > 1);
Reopen(options);
return true;
} else {
return false;
}
}
// Switch between different WAL settings
bool DBTestBase::ChangeWalOptions() {
if (option_config_ == kDefault) {
option_config_ = kDBLogDir;
Destroy(last_options_);
auto options = CurrentOptions();
Destroy(options);
options.create_if_missing = true;
Reopen(options);
return true;
} else if (option_config_ == kDBLogDir) {
option_config_ = kWalDirAndMmapReads;
Destroy(last_options_);
auto options = CurrentOptions();
Destroy(options);
options.create_if_missing = true;
Reopen(options);
return true;
} else if (option_config_ == kWalDirAndMmapReads) {
option_config_ = kRecycleLogFiles;
Destroy(last_options_);
auto options = CurrentOptions();
Destroy(options);
Reopen(options);
return true;
} else {
return false;
}
}
// Switch between different filter policy
// Jump from kDefault to kFilter to kFullFilter
bool DBTestBase::ChangeFilterOptions() {
if (option_config_ == kDefault) {
option_config_ = kFilter;
} else if (option_config_ == kFilter) {
option_config_ = kFullFilterWithNewTableReaderForCompactions;
} else if (option_config_ == kFullFilterWithNewTableReaderForCompactions) {
option_config_ = kPartitionedFilterWithNewTableReaderForCompactions;
} else {
return false;
}
Destroy(last_options_);
auto options = CurrentOptions();
options.create_if_missing = true;
TryReopen(options);
return true;
}
// Switch between different DB options for file ingestion tests.
bool DBTestBase::ChangeOptionsForFileIngestionTest() {
if (option_config_ == kDefault) {
option_config_ = kUniversalCompaction;
Destroy(last_options_);
auto options = CurrentOptions();
options.create_if_missing = true;
TryReopen(options);
return true;
} else if (option_config_ == kUniversalCompaction) {
option_config_ = kUniversalCompactionMultiLevel;
Destroy(last_options_);
auto options = CurrentOptions();
options.create_if_missing = true;
TryReopen(options);
return true;
} else if (option_config_ == kUniversalCompactionMultiLevel) {
option_config_ = kLevelSubcompactions;
Destroy(last_options_);
auto options = CurrentOptions();
assert(options.max_subcompactions > 1);
TryReopen(options);
return true;
} else if (option_config_ == kLevelSubcompactions) {
option_config_ = kUniversalSubcompactions;
Destroy(last_options_);
auto options = CurrentOptions();
assert(options.max_subcompactions > 1);
TryReopen(options);
return true;
} else if (option_config_ == kUniversalSubcompactions) {
option_config_ = kDirectIO;
Destroy(last_options_);
auto options = CurrentOptions();
TryReopen(options);
return true;
} else {
return false;
}
}
// Return the current option configuration.
Options DBTestBase::CurrentOptions(
const anon::OptionsOverride& options_override) const {
return GetOptions(option_config_, GetDefaultOptions(), options_override);
}
Options DBTestBase::CurrentOptions(
const Options& default_options,
const anon::OptionsOverride& options_override) const {
return GetOptions(option_config_, default_options, options_override);
}
Options DBTestBase::GetDefaultOptions() const {
Options options;
options.write_buffer_size = 4090 * 4096;
options.target_file_size_base = 2 * 1024 * 1024;
options.max_bytes_for_level_base = 10 * 1024 * 1024;
options.max_open_files = 5000;
options.wal_recovery_mode = WALRecoveryMode::kTolerateCorruptedTailRecords;
options.compaction_pri = CompactionPri::kByCompensatedSize;
options.env = env_;
if (!env_->skip_fsync_) {
options.track_and_verify_wals_in_manifest = true;
}
return options;
}
Options DBTestBase::GetOptions(
int option_config, const Options& default_options,
const anon::OptionsOverride& options_override) const {
// this redundant copy is to minimize code change w/o having lint error.
Options options = default_options;
BlockBasedTableOptions table_options;
bool set_block_based_table_factory = true;
#if !defined(OS_MACOSX) && !defined(OS_WIN) && !defined(OS_SOLARIS) && \
!defined(OS_AIX)
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->ClearCallBack(
"NewRandomAccessFile:O_DIRECT");
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->ClearCallBack(
"NewWritableFile:O_DIRECT");
#endif
bool can_allow_mmap = IsMemoryMappedAccessSupported();
switch (option_config) {
#ifndef ROCKSDB_LITE
case kHashSkipList:
options.prefix_extractor.reset(NewFixedPrefixTransform(1));
options.memtable_factory.reset(NewHashSkipListRepFactory(16));
options.allow_concurrent_memtable_write = false;
options.unordered_write = false;
break;
case kPlainTableFirstBytePrefix:
options.table_factory.reset(NewPlainTableFactory());
options.prefix_extractor.reset(NewFixedPrefixTransform(1));
options.allow_mmap_reads = can_allow_mmap;
options.max_sequential_skip_in_iterations = 999999;
set_block_based_table_factory = false;
break;
case kPlainTableCappedPrefix:
options.table_factory.reset(NewPlainTableFactory());
options.prefix_extractor.reset(NewCappedPrefixTransform(8));
options.allow_mmap_reads = can_allow_mmap;
options.max_sequential_skip_in_iterations = 999999;
set_block_based_table_factory = false;
break;
case kPlainTableCappedPrefixNonMmap:
options.table_factory.reset(NewPlainTableFactory());
options.prefix_extractor.reset(NewCappedPrefixTransform(8));
options.allow_mmap_reads = false;
options.max_sequential_skip_in_iterations = 999999;
set_block_based_table_factory = false;
break;
case kPlainTableAllBytesPrefix:
options.table_factory.reset(NewPlainTableFactory());
options.prefix_extractor.reset(NewNoopTransform());
options.allow_mmap_reads = can_allow_mmap;
options.max_sequential_skip_in_iterations = 999999;
set_block_based_table_factory = false;
break;
case kVectorRep:
options.memtable_factory.reset(new VectorRepFactory(100));
options.allow_concurrent_memtable_write = false;
options.unordered_write = false;
break;
case kHashLinkList:
options.prefix_extractor.reset(NewFixedPrefixTransform(1));
options.memtable_factory.reset(
NewHashLinkListRepFactory(4, 0, 3, true, 4));
options.allow_concurrent_memtable_write = false;
options.unordered_write = false;
break;
case kDirectIO: {
options.use_direct_reads = true;
options.use_direct_io_for_flush_and_compaction = true;
options.compaction_readahead_size = 2 * 1024 * 1024;
SetupSyncPointsToMockDirectIO();
break;
}
#endif // ROCKSDB_LITE
case kMergePut:
options.merge_operator = MergeOperators::CreatePutOperator();
break;
case kFilter:
table_options.filter_policy.reset(NewBloomFilterPolicy(10, true));
break;
case kFullFilterWithNewTableReaderForCompactions:
table_options.filter_policy.reset(NewBloomFilterPolicy(10, false));
options.new_table_reader_for_compaction_inputs = true;
options.compaction_readahead_size = 10 * 1024 * 1024;
break;
case kPartitionedFilterWithNewTableReaderForCompactions:
table_options.filter_policy.reset(NewBloomFilterPolicy(10, false));
table_options.partition_filters = true;
table_options.index_type =
BlockBasedTableOptions::IndexType::kTwoLevelIndexSearch;
options.new_table_reader_for_compaction_inputs = true;
options.compaction_readahead_size = 10 * 1024 * 1024;
break;
case kUncompressed:
options.compression = kNoCompression;
break;
case kNumLevel_3:
options.num_levels = 3;
break;
case kDBLogDir:
options.db_log_dir = alternative_db_log_dir_;
break;
case kWalDirAndMmapReads:
options.wal_dir = alternative_wal_dir_;
// mmap reads should be orthogonal to WalDir setting, so we piggyback to
// this option config to test mmap reads as well
options.allow_mmap_reads = can_allow_mmap;
break;
case kManifestFileSize:
options.max_manifest_file_size = 50; // 50 bytes
break;
case kPerfOptions:
options.soft_rate_limit = 2.0;
options.delayed_write_rate = 8 * 1024 * 1024;
options.report_bg_io_stats = true;
// TODO(3.13) -- test more options
break;
case kUniversalCompaction:
options.compaction_style = kCompactionStyleUniversal;
options.num_levels = 1;
break;
case kUniversalCompactionMultiLevel:
options.compaction_style = kCompactionStyleUniversal;
options.num_levels = 8;
break;
case kCompressedBlockCache:
options.allow_mmap_writes = can_allow_mmap;
table_options.block_cache_compressed = NewLRUCache(8 * 1024 * 1024);
break;
case kInfiniteMaxOpenFiles:
options.max_open_files = -1;
break;
case kxxHashChecksum: {
table_options.checksum = kxxHash;
break;
}
case kxxHash64Checksum: {
table_options.checksum = kxxHash64;
break;
}
case kFIFOCompaction: {
options.compaction_style = kCompactionStyleFIFO;
options.max_open_files = -1;
break;
}
case kBlockBasedTableWithPrefixHashIndex: {
table_options.index_type = BlockBasedTableOptions::kHashSearch;
options.prefix_extractor.reset(NewFixedPrefixTransform(1));
break;
}
case kBlockBasedTableWithWholeKeyHashIndex: {
table_options.index_type = BlockBasedTableOptions::kHashSearch;
options.prefix_extractor.reset(NewNoopTransform());
break;
}
case kBlockBasedTableWithPartitionedIndex: {
table_options.format_version = 3;
table_options.index_type = BlockBasedTableOptions::kTwoLevelIndexSearch;
options.prefix_extractor.reset(NewNoopTransform());
break;
}
case kBlockBasedTableWithPartitionedIndexFormat4: {
table_options.format_version = 4;
// Format 4 changes the binary index format. Since partitioned index is a
// super-set of simple indexes, we are also using kTwoLevelIndexSearch to
// test this format.
table_options.index_type = BlockBasedTableOptions::kTwoLevelIndexSearch;
// The top-level index in partition filters are also affected by format 4.
table_options.filter_policy.reset(NewBloomFilterPolicy(10, false));
table_options.partition_filters = true;
table_options.index_block_restart_interval = 8;
break;
}
case kBlockBasedTableWithIndexRestartInterval: {
table_options.index_block_restart_interval = 8;
break;
}
case kOptimizeFiltersForHits: {
options.optimize_filters_for_hits = true;
set_block_based_table_factory = true;
break;
}
case kRowCache: {
options.row_cache = NewLRUCache(1024 * 1024);
break;
}
case kRecycleLogFiles: {
options.recycle_log_file_num = 2;
break;
}
case kLevelSubcompactions: {
options.max_subcompactions = 4;
break;
}
case kUniversalSubcompactions: {
options.compaction_style = kCompactionStyleUniversal;
options.num_levels = 8;
options.max_subcompactions = 4;
break;
}
case kConcurrentSkipList: {
options.allow_concurrent_memtable_write = true;
options.enable_write_thread_adaptive_yield = true;
break;
}
case kPipelinedWrite: {
options.enable_pipelined_write = true;
break;
}
case kConcurrentWALWrites: {
// This options optimize 2PC commit path
options.two_write_queues = true;
options.manual_wal_flush = true;
break;
}
case kUnorderedWrite: {
options.allow_concurrent_memtable_write = false;
options.unordered_write = false;
break;
}
default:
break;
}
if (options_override.filter_policy) {
table_options.filter_policy = options_override.filter_policy;
table_options.partition_filters = options_override.partition_filters;
table_options.metadata_block_size = options_override.metadata_block_size;
}
if (set_block_based_table_factory) {
options.table_factory.reset(NewBlockBasedTableFactory(table_options));
}
options.env = env_;
options.create_if_missing = true;
options.fail_if_options_file_error = true;
return options;
}
void DBTestBase::CreateColumnFamilies(const std::vector<std::string>& cfs,
const Options& options) {
ColumnFamilyOptions cf_opts(options);
size_t cfi = handles_.size();
handles_.resize(cfi + cfs.size());
for (auto cf : cfs) {
Status s = db_->CreateColumnFamily(cf_opts, cf, &handles_[cfi++]);
ASSERT_OK(s);
}
}
void DBTestBase::CreateAndReopenWithCF(const std::vector<std::string>& cfs,
const Options& options) {
CreateColumnFamilies(cfs, options);
std::vector<std::string> cfs_plus_default = cfs;
cfs_plus_default.insert(cfs_plus_default.begin(), kDefaultColumnFamilyName);
ReopenWithColumnFamilies(cfs_plus_default, options);
}
void DBTestBase::ReopenWithColumnFamilies(const std::vector<std::string>& cfs,
const std::vector<Options>& options) {
ASSERT_OK(TryReopenWithColumnFamilies(cfs, options));
}
void DBTestBase::ReopenWithColumnFamilies(const std::vector<std::string>& cfs,
const Options& options) {
ASSERT_OK(TryReopenWithColumnFamilies(cfs, options));
}
void DBTestBase::SetTimeElapseOnlySleepOnReopen(DBOptions* options) {
time_elapse_only_sleep_on_reopen_ = true;
// Need to disable stats dumping and persisting which also use
// RepeatableThread, which uses InstrumentedCondVar::TimedWaitInternal.
// With time_elapse_only_sleep_, this can hang on some platforms (MacOS)
// because (a) on some platforms, pthread_cond_timedwait does not appear
// to release the lock for other threads to operate if the deadline time
// is already passed, and (b) TimedWait calls are currently a bad abstraction
// because the deadline parameter is usually computed from Env time,
// but is interpreted in real clock time.
options->stats_dump_period_sec = 0;
options->stats_persist_period_sec = 0;
}
void DBTestBase::MaybeInstallTimeElapseOnlySleep(const DBOptions& options) {
if (time_elapse_only_sleep_on_reopen_) {
assert(options.env == env_ ||
static_cast_with_check<CompositeEnvWrapper>(options.env)
->env_target() == env_);
assert(options.stats_dump_period_sec == 0);
assert(options.stats_persist_period_sec == 0);
// We cannot set these before destroying the last DB because they might
// cause a deadlock or similar without the appropriate options set in
// the DB.
env_->time_elapse_only_sleep_ = true;
env_->no_slowdown_ = true;
} else {
// Going back in same test run is not yet supported, so no
// reset in this case.
}
}
Status DBTestBase::TryReopenWithColumnFamilies(
const std::vector<std::string>& cfs, const std::vector<Options>& options) {
Close();
EXPECT_EQ(cfs.size(), options.size());
std::vector<ColumnFamilyDescriptor> column_families;
for (size_t i = 0; i < cfs.size(); ++i) {
column_families.push_back(ColumnFamilyDescriptor(cfs[i], options[i]));
}
DBOptions db_opts = DBOptions(options[0]);
last_options_ = options[0];
MaybeInstallTimeElapseOnlySleep(db_opts);
return DB::Open(db_opts, dbname_, column_families, &handles_, &db_);
}
Status DBTestBase::TryReopenWithColumnFamilies(
const std::vector<std::string>& cfs, const Options& options) {
Close();
std::vector<Options> v_opts(cfs.size(), options);
return TryReopenWithColumnFamilies(cfs, v_opts);
}
void DBTestBase::Reopen(const Options& options) {
ASSERT_OK(TryReopen(options));
}
void DBTestBase::Close() {
for (auto h : handles_) {
EXPECT_OK(db_->DestroyColumnFamilyHandle(h));
}
handles_.clear();
delete db_;
db_ = nullptr;
}
void DBTestBase::DestroyAndReopen(const Options& options) {
// Destroy using last options
Destroy(last_options_);
Reopen(options);
}
void DBTestBase::Destroy(const Options& options, bool delete_cf_paths) {
std::vector<ColumnFamilyDescriptor> column_families;
if (delete_cf_paths) {
for (size_t i = 0; i < handles_.size(); ++i) {
ColumnFamilyDescriptor cfdescriptor;
// GetDescriptor is not implemented for ROCKSDB_LITE
handles_[i]->GetDescriptor(&cfdescriptor).PermitUncheckedError();
column_families.push_back(cfdescriptor);
}
}
Close();
ASSERT_OK(DestroyDB(dbname_, options, column_families));
}
Status DBTestBase::ReadOnlyReopen(const Options& options) {
MaybeInstallTimeElapseOnlySleep(options);
return DB::OpenForReadOnly(options, dbname_, &db_);
}
Status DBTestBase::TryReopen(const Options& options) {
Close();
last_options_.table_factory.reset();
// Note: operator= is an unsafe approach here since it destructs
// std::shared_ptr in the same order of their creation, in contrast to
// destructors which destructs them in the opposite order of creation. One
// particular problem is that the cache destructor might invoke callback
// functions that use Option members such as statistics. To work around this
// problem, we manually call destructor of table_factory which eventually
// clears the block cache.
last_options_ = options;
MaybeInstallTimeElapseOnlySleep(options);
return DB::Open(options, dbname_, &db_);
}
bool DBTestBase::IsDirectIOSupported() {
return test::IsDirectIOSupported(env_, dbname_);
}
bool DBTestBase::IsMemoryMappedAccessSupported() const {
return (!encrypted_env_);
}
Status DBTestBase::Flush(int cf) {
if (cf == 0) {
return db_->Flush(FlushOptions());
} else {
return db_->Flush(FlushOptions(), handles_[cf]);
}
}
Status DBTestBase::Flush(const std::vector<int>& cf_ids) {
std::vector<ColumnFamilyHandle*> cfhs;
std::for_each(cf_ids.begin(), cf_ids.end(),
[&cfhs, this](int id) { cfhs.emplace_back(handles_[id]); });
return db_->Flush(FlushOptions(), cfhs);
}
Status DBTestBase::Put(const Slice& k, const Slice& v, WriteOptions wo) {
if (kMergePut == option_config_) {
return db_->Merge(wo, k, v);
} else {
return db_->Put(wo, k, v);
}
}
Status DBTestBase::Put(int cf, const Slice& k, const Slice& v,
WriteOptions wo) {
if (kMergePut == option_config_) {
return db_->Merge(wo, handles_[cf], k, v);
} else {
return db_->Put(wo, handles_[cf], k, v);
}
}
Status DBTestBase::Merge(const Slice& k, const Slice& v, WriteOptions wo) {
return db_->Merge(wo, k, v);
}
Status DBTestBase::Merge(int cf, const Slice& k, const Slice& v,
WriteOptions wo) {
return db_->Merge(wo, handles_[cf], k, v);
}
Status DBTestBase::Delete(const std::string& k) {
return db_->Delete(WriteOptions(), k);
}
Status DBTestBase::Delete(int cf, const std::string& k) {
return db_->Delete(WriteOptions(), handles_[cf], k);
}
Status DBTestBase::SingleDelete(const std::string& k) {
return db_->SingleDelete(WriteOptions(), k);
}
Status DBTestBase::SingleDelete(int cf, const std::string& k) {
return db_->SingleDelete(WriteOptions(), handles_[cf], k);
}
bool DBTestBase::SetPreserveDeletesSequenceNumber(SequenceNumber sn) {
return db_->SetPreserveDeletesSequenceNumber(sn);
}
std::string DBTestBase::Get(const std::string& k, const Snapshot* snapshot) {
ReadOptions options;
options.verify_checksums = true;
options.snapshot = snapshot;
std::string result;
Status s = db_->Get(options, k, &result);
if (s.IsNotFound()) {
result = "NOT_FOUND";
} else if (!s.ok()) {
result = s.ToString();
}
return result;
}
std::string DBTestBase::Get(int cf, const std::string& k,
const Snapshot* snapshot) {
ReadOptions options;
options.verify_checksums = true;
options.snapshot = snapshot;
std::string result;
Status s = db_->Get(options, handles_[cf], k, &result);
if (s.IsNotFound()) {
result = "NOT_FOUND";
} else if (!s.ok()) {
result = s.ToString();
}
return result;
}
std::vector<std::string> DBTestBase::MultiGet(std::vector<int> cfs,
const std::vector<std::string>& k,
const Snapshot* snapshot,
const bool batched) {
ReadOptions options;
options.verify_checksums = true;
options.snapshot = snapshot;
std::vector<ColumnFamilyHandle*> handles;
std::vector<Slice> keys;
std::vector<std::string> result;
for (unsigned int i = 0; i < cfs.size(); ++i) {
handles.push_back(handles_[cfs[i]]);
keys.push_back(k[i]);
}
std::vector<Status> s;
if (!batched) {
s = db_->MultiGet(options, handles, keys, &result);
for (unsigned int i = 0; i < s.size(); ++i) {
if (s[i].IsNotFound()) {
result[i] = "NOT_FOUND";
} else if (!s[i].ok()) {
result[i] = s[i].ToString();
}
}
} else {
std::vector<PinnableSlice> pin_values(cfs.size());
result.resize(cfs.size());
s.resize(cfs.size());
db_->MultiGet(options, cfs.size(), handles.data(), keys.data(),
pin_values.data(), s.data());
for (unsigned int i = 0; i < s.size(); ++i) {
if (s[i].IsNotFound()) {
result[i] = "NOT_FOUND";
} else if (!s[i].ok()) {
result[i] = s[i].ToString();
} else {
result[i].assign(pin_values[i].data(), pin_values[i].size());
}
}
}
return result;
}
std::vector<std::string> DBTestBase::MultiGet(const std::vector<std::string>& k,
const Snapshot* snapshot) {
ReadOptions options;
options.verify_checksums = true;
options.snapshot = snapshot;
std::vector<Slice> keys;
std::vector<std::string> result;
std::vector<Status> statuses(k.size());
std::vector<PinnableSlice> pin_values(k.size());
for (unsigned int i = 0; i < k.size(); ++i) {
keys.push_back(k[i]);
}
db_->MultiGet(options, dbfull()->DefaultColumnFamily(), keys.size(),
keys.data(), pin_values.data(), statuses.data());
result.resize(k.size());
for (auto iter = result.begin(); iter != result.end(); ++iter) {
iter->assign(pin_values[iter - result.begin()].data(),
pin_values[iter - result.begin()].size());
}
for (unsigned int i = 0; i < statuses.size(); ++i) {
if (statuses[i].IsNotFound()) {
result[i] = "NOT_FOUND";
}
}
return result;
}
Status DBTestBase::Get(const std::string& k, PinnableSlice* v) {
ReadOptions options;
options.verify_checksums = true;
Status s = dbfull()->Get(options, dbfull()->DefaultColumnFamily(), k, v);
return s;
}
uint64_t DBTestBase::GetNumSnapshots() {
uint64_t int_num;
EXPECT_TRUE(dbfull()->GetIntProperty("rocksdb.num-snapshots", &int_num));
return int_num;
}
uint64_t DBTestBase::GetTimeOldestSnapshots() {
uint64_t int_num;
EXPECT_TRUE(
dbfull()->GetIntProperty("rocksdb.oldest-snapshot-time", &int_num));
return int_num;
}
uint64_t DBTestBase::GetSequenceOldestSnapshots() {
uint64_t int_num;
EXPECT_TRUE(
dbfull()->GetIntProperty("rocksdb.oldest-snapshot-sequence", &int_num));
return int_num;
}
// Return a string that contains all key,value pairs in order,
// formatted like "(k1->v1)(k2->v2)".
std::string DBTestBase::Contents(int cf) {
std::vector<std::string> forward;
std::string result;
Iterator* iter = (cf == 0) ? db_->NewIterator(ReadOptions())
: db_->NewIterator(ReadOptions(), handles_[cf]);
for (iter->SeekToFirst(); iter->Valid(); iter->Next()) {
std::string s = IterStatus(iter);
result.push_back('(');
result.append(s);
result.push_back(')');
forward.push_back(s);
}
// Check reverse iteration results are the reverse of forward results
unsigned int matched = 0;
for (iter->SeekToLast(); iter->Valid(); iter->Prev()) {
EXPECT_LT(matched, forward.size());
EXPECT_EQ(IterStatus(iter), forward[forward.size() - matched - 1]);
matched++;
}
EXPECT_EQ(matched, forward.size());
delete iter;
return result;
}
std::string DBTestBase::AllEntriesFor(const Slice& user_key, int cf) {
Arena arena;
auto options = CurrentOptions();
InternalKeyComparator icmp(options.comparator);
ReadRangeDelAggregator range_del_agg(&icmp,
kMaxSequenceNumber /* upper_bound */);
ReadOptions read_options;
ScopedArenaIterator iter;
if (cf == 0) {
iter.set(dbfull()->NewInternalIterator(read_options, &arena, &range_del_agg,
kMaxSequenceNumber));
} else {
iter.set(dbfull()->NewInternalIterator(read_options, &arena, &range_del_agg,
kMaxSequenceNumber, handles_[cf]));
}
InternalKey target(user_key, kMaxSequenceNumber, kTypeValue);
iter->Seek(target.Encode());
std::string result;
if (!iter->status().ok()) {
result = iter->status().ToString();
} else {
result = "[ ";
bool first = true;
while (iter->Valid()) {
ParsedInternalKey ikey(Slice(), 0, kTypeValue);
if (ParseInternalKey(iter->key(), &ikey, true /* log_err_key */) !=
Status::OK()) {
result += "CORRUPTED";
} else {
if (!last_options_.comparator->Equal(ikey.user_key, user_key)) {
break;
}
if (!first) {
result += ", ";
}
first = false;
switch (ikey.type) {
case kTypeValue:
result += iter->value().ToString();
break;
case kTypeMerge:
// keep it the same as kTypeValue for testing kMergePut
result += iter->value().ToString();
break;
case kTypeDeletion:
result += "DEL";
break;
case kTypeSingleDeletion:
result += "SDEL";
break;
default:
assert(false);
break;
}
}
iter->Next();
}
if (!first) {
result += " ";
}
result += "]";
}
return result;
}
#ifndef ROCKSDB_LITE
int DBTestBase::NumSortedRuns(int cf) {
ColumnFamilyMetaData cf_meta;
if (cf == 0) {
db_->GetColumnFamilyMetaData(&cf_meta);
} else {
db_->GetColumnFamilyMetaData(handles_[cf], &cf_meta);
}
int num_sr = static_cast<int>(cf_meta.levels[0].files.size());
for (size_t i = 1U; i < cf_meta.levels.size(); i++) {
if (cf_meta.levels[i].files.size() > 0) {
num_sr++;
}
}
return num_sr;
}
uint64_t DBTestBase::TotalSize(int cf) {
ColumnFamilyMetaData cf_meta;
if (cf == 0) {
db_->GetColumnFamilyMetaData(&cf_meta);
} else {
db_->GetColumnFamilyMetaData(handles_[cf], &cf_meta);
}
return cf_meta.size;
}
uint64_t DBTestBase::SizeAtLevel(int level) {
std::vector<LiveFileMetaData> metadata;
db_->GetLiveFilesMetaData(&metadata);
uint64_t sum = 0;
for (const auto& m : metadata) {
if (m.level == level) {
sum += m.size;
}
}
return sum;
}
size_t DBTestBase::TotalLiveFiles(int cf) {
ColumnFamilyMetaData cf_meta;
if (cf == 0) {
db_->GetColumnFamilyMetaData(&cf_meta);
} else {
db_->GetColumnFamilyMetaData(handles_[cf], &cf_meta);
}
size_t num_files = 0;
for (auto& level : cf_meta.levels) {
num_files += level.files.size();
}
return num_files;
}
size_t DBTestBase::CountLiveFiles() {
std::vector<LiveFileMetaData> metadata;
db_->GetLiveFilesMetaData(&metadata);
return metadata.size();
}
int DBTestBase::NumTableFilesAtLevel(int level, int cf) {
std::string property;
if (cf == 0) {
// default cfd
EXPECT_TRUE(db_->GetProperty(
"rocksdb.num-files-at-level" + NumberToString(level), &property));
} else {
EXPECT_TRUE(db_->GetProperty(
handles_[cf], "rocksdb.num-files-at-level" + NumberToString(level),
&property));
}
return atoi(property.c_str());
}
double DBTestBase::CompressionRatioAtLevel(int level, int cf) {
std::string property;
if (cf == 0) {
// default cfd
EXPECT_TRUE(db_->GetProperty(
"rocksdb.compression-ratio-at-level" + NumberToString(level),
&property));
} else {
EXPECT_TRUE(db_->GetProperty(
handles_[cf],
"rocksdb.compression-ratio-at-level" + NumberToString(level),
&property));
}
return std::stod(property);
}
int DBTestBase::TotalTableFiles(int cf, int levels) {
if (levels == -1) {
levels = (cf == 0) ? db_->NumberLevels() : db_->NumberLevels(handles_[1]);
}
int result = 0;
for (int level = 0; level < levels; level++) {
result += NumTableFilesAtLevel(level, cf);
}
return result;
}
// Return spread of files per level
std::string DBTestBase::FilesPerLevel(int cf) {
int num_levels =
(cf == 0) ? db_->NumberLevels() : db_->NumberLevels(handles_[1]);
std::string result;
size_t last_non_zero_offset = 0;
for (int level = 0; level < num_levels; level++) {
int f = NumTableFilesAtLevel(level, cf);
char buf[100];
snprintf(buf, sizeof(buf), "%s%d", (level ? "," : ""), f);
result += buf;
if (f > 0) {
last_non_zero_offset = result.size();
}
}
result.resize(last_non_zero_offset);
return result;
}
#endif // !ROCKSDB_LITE
std::vector<uint64_t> DBTestBase::GetBlobFileNumbers() {
VersionSet* const versions = dbfull()->TEST_GetVersionSet();
assert(versions);
ColumnFamilyData* const cfd = versions->GetColumnFamilySet()->GetDefault();
assert(cfd);
Version* const current = cfd->current();
assert(current);
const VersionStorageInfo* const storage_info = current->storage_info();
assert(storage_info);
const auto& blob_files = storage_info->GetBlobFiles();
std::vector<uint64_t> result;
result.reserve(blob_files.size());
for (const auto& blob_file : blob_files) {
result.emplace_back(blob_file.first);
}
return result;
}
size_t DBTestBase::CountFiles() {
size_t count = 0;
std::vector<std::string> files;
if (env_->GetChildren(dbname_, &files).ok()) {
count += files.size();
}
if (dbname_ != last_options_.wal_dir) {
if (env_->GetChildren(last_options_.wal_dir, &files).ok()) {
count += files.size();
}
}
return count;
};
Status DBTestBase::CountFiles(size_t* count) {
std::vector<std::string> files;
Status s = env_->GetChildren(dbname_, &files);
if (!s.ok()) {
return s;
}
size_t files_count = files.size();
if (dbname_ != last_options_.wal_dir) {
s = env_->GetChildren(last_options_.wal_dir, &files);
if (!s.ok()) {
return s;
}
*count = files_count + files.size();
}
return Status::OK();
}
Status DBTestBase::Size(const Slice& start, const Slice& limit, int cf,
uint64_t* size) {
Range r(start, limit);
if (cf == 0) {
return db_->GetApproximateSizes(&r, 1, size);
} else {
return db_->GetApproximateSizes(handles_[1], &r, 1, size);
}
}
void DBTestBase::Compact(int cf, const Slice& start, const Slice& limit,
uint32_t target_path_id) {
CompactRangeOptions compact_options;
compact_options.target_path_id = target_path_id;
ASSERT_OK(db_->CompactRange(compact_options, handles_[cf], &start, &limit));
}
void DBTestBase::Compact(int cf, const Slice& start, const Slice& limit) {
ASSERT_OK(
db_->CompactRange(CompactRangeOptions(), handles_[cf], &start, &limit));
}
void DBTestBase::Compact(const Slice& start, const Slice& limit) {
ASSERT_OK(db_->CompactRange(CompactRangeOptions(), &start, &limit));
}
// Do n memtable compactions, each of which produces an sstable
// covering the range [small,large].
void DBTestBase::MakeTables(int n, const std::string& small,
const std::string& large, int cf) {
for (int i = 0; i < n; i++) {
ASSERT_OK(Put(cf, small, "begin"));
ASSERT_OK(Put(cf, large, "end"));
ASSERT_OK(Flush(cf));
MoveFilesToLevel(n - i - 1, cf);
}
}
// Prevent pushing of new sstables into deeper levels by adding
// tables that cover a specified range to all levels.
void DBTestBase::FillLevels(const std::string& smallest,
const std::string& largest, int cf) {
MakeTables(db_->NumberLevels(handles_[cf]), smallest, largest, cf);
}
void DBTestBase::MoveFilesToLevel(int level, int cf) {
for (int l = 0; l < level; ++l) {
if (cf > 0) {
EXPECT_OK(dbfull()->TEST_CompactRange(l, nullptr, nullptr, handles_[cf]));
} else {
EXPECT_OK(dbfull()->TEST_CompactRange(l, nullptr, nullptr));
}
}
}
#ifndef ROCKSDB_LITE
void DBTestBase::DumpFileCounts(const char* label) {
fprintf(stderr, "---\n%s:\n", label);
fprintf(stderr, "maxoverlap: %" PRIu64 "\n",
dbfull()->TEST_MaxNextLevelOverlappingBytes());
for (int level = 0; level < db_->NumberLevels(); level++) {
int num = NumTableFilesAtLevel(level);
if (num > 0) {
fprintf(stderr, " level %3d : %d files\n", level, num);
}
}
}
#endif // !ROCKSDB_LITE
std::string DBTestBase::DumpSSTableList() {
std::string property;
db_->GetProperty("rocksdb.sstables", &property);
return property;
}
void DBTestBase::GetSstFiles(Env* env, std::string path,
std::vector<std::string>* files) {
EXPECT_OK(env->GetChildren(path, files));
files->erase(
std::remove_if(files->begin(), files->end(), [](std::string name) {
uint64_t number;
FileType type;
return !(ParseFileName(name, &number, &type) && type == kTableFile);
}), files->end());
}
int DBTestBase::GetSstFileCount(std::string path) {
std::vector<std::string> files;
DBTestBase::GetSstFiles(env_, path, &files);
return static_cast<int>(files.size());
}
// this will generate non-overlapping files since it keeps increasing key_idx
void DBTestBase::GenerateNewFile(int cf, Random* rnd, int* key_idx,
bool nowait) {
for (int i = 0; i < KNumKeysByGenerateNewFile; i++) {
ASSERT_OK(Put(cf, Key(*key_idx), rnd->RandomString((i == 99) ? 1 : 990)));
(*key_idx)++;
}
if (!nowait) {
ASSERT_OK(dbfull()->TEST_WaitForFlushMemTable());
ASSERT_OK(dbfull()->TEST_WaitForCompact());
}
}
// this will generate non-overlapping files since it keeps increasing key_idx
void DBTestBase::GenerateNewFile(Random* rnd, int* key_idx, bool nowait) {
for (int i = 0; i < KNumKeysByGenerateNewFile; i++) {
ASSERT_OK(Put(Key(*key_idx), rnd->RandomString((i == 99) ? 1 : 990)));
(*key_idx)++;
}
if (!nowait) {
ASSERT_OK(dbfull()->TEST_WaitForFlushMemTable());
ASSERT_OK(dbfull()->TEST_WaitForCompact());
}
}
const int DBTestBase::kNumKeysByGenerateNewRandomFile = 51;
void DBTestBase::GenerateNewRandomFile(Random* rnd, bool nowait) {
for (int i = 0; i < kNumKeysByGenerateNewRandomFile; i++) {
ASSERT_OK(Put("key" + rnd->RandomString(7), rnd->RandomString(2000)));
}
ASSERT_OK(Put("key" + rnd->RandomString(7), rnd->RandomString(200)));
if (!nowait) {
ASSERT_OK(dbfull()->TEST_WaitForFlushMemTable());
ASSERT_OK(dbfull()->TEST_WaitForCompact());
}
}
std::string DBTestBase::IterStatus(Iterator* iter) {
std::string result;
if (iter->Valid()) {
result = iter->key().ToString() + "->" + iter->value().ToString();
} else {
result = "(invalid)";
}
return result;
}
Options DBTestBase::OptionsForLogIterTest() {
Options options = CurrentOptions();
options.create_if_missing = true;
options.WAL_ttl_seconds = 1000;
return options;
}
std::string DBTestBase::DummyString(size_t len, char c) {
return std::string(len, c);
}
void DBTestBase::VerifyIterLast(std::string expected_key, int cf) {
Iterator* iter;
ReadOptions ro;
if (cf == 0) {
iter = db_->NewIterator(ro);
} else {
iter = db_->NewIterator(ro, handles_[cf]);
}
iter->SeekToLast();
ASSERT_EQ(IterStatus(iter), expected_key);
delete iter;
}
// Used to test InplaceUpdate
// If previous value is nullptr or delta is > than previous value,
// sets newValue with delta
// If previous value is not empty,
// updates previous value with 'b' string of previous value size - 1.
UpdateStatus DBTestBase::updateInPlaceSmallerSize(char* prevValue,
uint32_t* prevSize,
Slice delta,
std::string* newValue) {
if (prevValue == nullptr) {
*newValue = std::string(delta.size(), 'c');
return UpdateStatus::UPDATED;
} else {
*prevSize = *prevSize - 1;
std::string str_b = std::string(*prevSize, 'b');
memcpy(prevValue, str_b.c_str(), str_b.size());
return UpdateStatus::UPDATED_INPLACE;
}
}
UpdateStatus DBTestBase::updateInPlaceSmallerVarintSize(char* prevValue,
uint32_t* prevSize,
Slice delta,
std::string* newValue) {
if (prevValue == nullptr) {
*newValue = std::string(delta.size(), 'c');
return UpdateStatus::UPDATED;
} else {
*prevSize = 1;
std::string str_b = std::string(*prevSize, 'b');
memcpy(prevValue, str_b.c_str(), str_b.size());
return UpdateStatus::UPDATED_INPLACE;
}
}
UpdateStatus DBTestBase::updateInPlaceLargerSize(char* /*prevValue*/,
uint32_t* /*prevSize*/,
Slice delta,
std::string* newValue) {
*newValue = std::string(delta.size(), 'c');
return UpdateStatus::UPDATED;
}
UpdateStatus DBTestBase::updateInPlaceNoAction(char* /*prevValue*/,
uint32_t* /*prevSize*/,
Slice /*delta*/,
std::string* /*newValue*/) {
return UpdateStatus::UPDATE_FAILED;
}
// Utility method to test InplaceUpdate
void DBTestBase::validateNumberOfEntries(int numValues, int cf) {
Arena arena;
auto options = CurrentOptions();
InternalKeyComparator icmp(options.comparator);
ReadRangeDelAggregator range_del_agg(&icmp,
kMaxSequenceNumber /* upper_bound */);
// This should be defined after range_del_agg so that it destructs the
// assigned iterator before it range_del_agg is already destructed.
ReadOptions read_options;
ScopedArenaIterator iter;
if (cf != 0) {
iter.set(dbfull()->NewInternalIterator(read_options, &arena, &range_del_agg,
kMaxSequenceNumber, handles_[cf]));
} else {
iter.set(dbfull()->NewInternalIterator(read_options, &arena, &range_del_agg,
kMaxSequenceNumber));
}
iter->SeekToFirst();
ASSERT_OK(iter->status());
int seq = numValues;
while (iter->Valid()) {
ParsedInternalKey ikey;
ikey.clear();
ASSERT_OK(ParseInternalKey(iter->key(), &ikey, true /* log_err_key */));
// checks sequence number for updates
ASSERT_EQ(ikey.sequence, (unsigned)seq--);
iter->Next();
}
ASSERT_EQ(0, seq);
}
void DBTestBase::CopyFile(const std::string& source,
const std::string& destination, uint64_t size) {
const EnvOptions soptions;
std::unique_ptr<SequentialFile> srcfile;
ASSERT_OK(env_->NewSequentialFile(source, &srcfile, soptions));
std::unique_ptr<WritableFile> destfile;
ASSERT_OK(env_->NewWritableFile(destination, &destfile, soptions));
if (size == 0) {
// default argument means copy everything
ASSERT_OK(env_->GetFileSize(source, &size));
}
char buffer[4096];
Slice slice;
while (size > 0) {
uint64_t one = std::min(uint64_t(sizeof(buffer)), size);
ASSERT_OK(srcfile->Read(one, &slice, buffer));
ASSERT_OK(destfile->Append(slice));
size -= slice.size();
}
ASSERT_OK(destfile->Close());
}
Status DBTestBase::GetAllDataFiles(
const FileType file_type, std::unordered_map<std::string, uint64_t>* files,
uint64_t* total_size /* = nullptr */) {
if (total_size) {
*total_size = 0;
}
std::vector<std::string> children;
Status s = env_->GetChildren(dbname_, &children);
if (s.ok()) {
for (auto& file_name : children) {
uint64_t number;
FileType type;
if (ParseFileName(file_name, &number, &type) && type == file_type) {
std::string file_path = dbname_ + "/" + file_name;
uint64_t file_size = 0;
s = env_->GetFileSize(file_path, &file_size);
if (!s.ok()) {
break;
}
(*files)[file_path] = file_size;
if (total_size) {
*total_size += file_size;
}
}
}
}
return s;
}
std::vector<std::uint64_t> DBTestBase::ListTableFiles(Env* env,
const std::string& path) {
std::vector<std::string> files;
std::vector<uint64_t> file_numbers;
EXPECT_OK(env->GetChildren(path, &files));
uint64_t number;
FileType type;
for (size_t i = 0; i < files.size(); ++i) {
if (ParseFileName(files[i], &number, &type)) {
if (type == kTableFile) {
file_numbers.push_back(number);
}
}
}
return file_numbers;
}
void DBTestBase::VerifyDBFromMap(std::map<std::string, std::string> true_data,
size_t* total_reads_res, bool tailing_iter,
std::map<std::string, Status> status) {
size_t total_reads = 0;
for (auto& kv : true_data) {
Status s = status[kv.first];
if (s.ok()) {
ASSERT_EQ(Get(kv.first), kv.second);
} else {
std::string value;
ASSERT_EQ(s, db_->Get(ReadOptions(), kv.first, &value));
}
total_reads++;
}
// Normal Iterator
{
int iter_cnt = 0;
ReadOptions ro;
ro.total_order_seek = true;
Iterator* iter = db_->NewIterator(ro);
// Verify Iterator::Next()
iter_cnt = 0;
auto data_iter = true_data.begin();
Status s;
for (iter->SeekToFirst(); iter->Valid(); iter->Next(), data_iter++) {
ASSERT_EQ(iter->key().ToString(), data_iter->first);
Status current_status = status[data_iter->first];
if (!current_status.ok()) {
s = current_status;
}
ASSERT_EQ(iter->status(), s);
if (current_status.ok()) {
ASSERT_EQ(iter->value().ToString(), data_iter->second);
}
iter_cnt++;
total_reads++;
}
ASSERT_EQ(data_iter, true_data.end()) << iter_cnt << " / "
<< true_data.size();
delete iter;
// Verify Iterator::Prev()
// Use a new iterator to make sure its status is clean.
iter = db_->NewIterator(ro);
iter_cnt = 0;
s = Status::OK();
auto data_rev = true_data.rbegin();
for (iter->SeekToLast(); iter->Valid(); iter->Prev(), data_rev++) {
ASSERT_EQ(iter->key().ToString(), data_rev->first);
Status current_status = status[data_rev->first];
if (!current_status.ok()) {
s = current_status;
}
ASSERT_EQ(iter->status(), s);
if (current_status.ok()) {
ASSERT_EQ(iter->value().ToString(), data_rev->second);
}
iter_cnt++;
total_reads++;
}
ASSERT_EQ(data_rev, true_data.rend()) << iter_cnt << " / "
<< true_data.size();
// Verify Iterator::Seek()
for (auto kv : true_data) {
iter->Seek(kv.first);
ASSERT_EQ(kv.first, iter->key().ToString());
ASSERT_EQ(kv.second, iter->value().ToString());
total_reads++;
}
delete iter;
}
if (tailing_iter) {
#ifndef ROCKSDB_LITE
// Tailing iterator
int iter_cnt = 0;
ReadOptions ro;
ro.tailing = true;
ro.total_order_seek = true;
Iterator* iter = db_->NewIterator(ro);
// Verify ForwardIterator::Next()
iter_cnt = 0;
auto data_iter = true_data.begin();
for (iter->SeekToFirst(); iter->Valid(); iter->Next(), data_iter++) {
ASSERT_EQ(iter->key().ToString(), data_iter->first);
ASSERT_EQ(iter->value().ToString(), data_iter->second);
iter_cnt++;
total_reads++;
}
ASSERT_EQ(data_iter, true_data.end()) << iter_cnt << " / "
<< true_data.size();
// Verify ForwardIterator::Seek()
for (auto kv : true_data) {
iter->Seek(kv.first);
ASSERT_EQ(kv.first, iter->key().ToString());
ASSERT_EQ(kv.second, iter->value().ToString());
total_reads++;
}
delete iter;
#endif // ROCKSDB_LITE
}
if (total_reads_res) {
*total_reads_res = total_reads;
}
}
void DBTestBase::VerifyDBInternal(
std::vector<std::pair<std::string, std::string>> true_data) {
Arena arena;
InternalKeyComparator icmp(last_options_.comparator);
ReadRangeDelAggregator range_del_agg(&icmp,
kMaxSequenceNumber /* upper_bound */);
ReadOptions read_options;
auto iter = dbfull()->NewInternalIterator(read_options, &arena,
&range_del_agg, kMaxSequenceNumber);
iter->SeekToFirst();
for (auto p : true_data) {
ASSERT_TRUE(iter->Valid());
ParsedInternalKey ikey;
ASSERT_OK(ParseInternalKey(iter->key(), &ikey, true /* log_err_key */));
ASSERT_EQ(p.first, ikey.user_key);
ASSERT_EQ(p.second, iter->value());
iter->Next();
};
ASSERT_FALSE(iter->Valid());
iter->~InternalIterator();
}
#ifndef ROCKSDB_LITE
uint64_t DBTestBase::GetNumberOfSstFilesForColumnFamily(
DB* db, std::string column_family_name) {
std::vector<LiveFileMetaData> metadata;
db->GetLiveFilesMetaData(&metadata);
uint64_t result = 0;
for (auto& fileMetadata : metadata) {
result += (fileMetadata.column_family_name == column_family_name);
}
return result;
}
#endif // ROCKSDB_LITE
} // namespace ROCKSDB_NAMESPACE
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