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rocksdb/db/db_options_test.cc

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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 <limits>
#include <string>
#include <unordered_map>
#include "db/column_family.h"
#include "db/db_impl/db_impl.h"
#include "db/db_test_util.h"
#include "options/options_helper.h"
#include "port/stack_trace.h"
#include "rocksdb/cache.h"
#include "rocksdb/convenience.h"
#include "rocksdb/rate_limiter.h"
#include "rocksdb/stats_history.h"
#include "test_util/sync_point.h"
#include "test_util/testutil.h"
#include "util/random.h"
namespace ROCKSDB_NAMESPACE {
class DBOptionsTest : public DBTestBase {
public:
DBOptionsTest() : DBTestBase("db_options_test", /*env_do_fsync=*/true) {}
#ifndef ROCKSDB_LITE
std::unordered_map<std::string, std::string> GetMutableDBOptionsMap(
const DBOptions& options) {
std::string options_str;
std::unordered_map<std::string, std::string> mutable_map;
ConfigOptions config_options(options);
config_options.delimiter = "; ";
EXPECT_OK(GetStringFromMutableDBOptions(
config_options, MutableDBOptions(options), &options_str));
EXPECT_OK(StringToMap(options_str, &mutable_map));
return mutable_map;
}
std::unordered_map<std::string, std::string> GetMutableCFOptionsMap(
const ColumnFamilyOptions& options) {
std::string options_str;
ConfigOptions config_options;
config_options.delimiter = "; ";
std::unordered_map<std::string, std::string> mutable_map;
EXPECT_OK(GetStringFromMutableCFOptions(
config_options, MutableCFOptions(options), &options_str));
EXPECT_OK(StringToMap(options_str, &mutable_map));
return mutable_map;
}
std::unordered_map<std::string, std::string> GetRandomizedMutableCFOptionsMap(
Random* rnd) {
Options options = CurrentOptions();
options.env = env_;
ImmutableDBOptions db_options(options);
test::RandomInitCFOptions(&options, options, rnd);
auto sanitized_options = SanitizeOptions(db_options, options);
auto opt_map = GetMutableCFOptionsMap(sanitized_options);
delete options.compaction_filter;
return opt_map;
}
std::unordered_map<std::string, std::string> GetRandomizedMutableDBOptionsMap(
Random* rnd) {
DBOptions db_options;
test::RandomInitDBOptions(&db_options, rnd);
auto sanitized_options = SanitizeOptions(dbname_, db_options);
return GetMutableDBOptionsMap(sanitized_options);
}
#endif // ROCKSDB_LITE
};
TEST_F(DBOptionsTest, ImmutableTrackAndVerifyWalsInManifest) {
Options options;
options.env = env_;
options.track_and_verify_wals_in_manifest = true;
ImmutableDBOptions db_options(options);
ASSERT_TRUE(db_options.track_and_verify_wals_in_manifest);
Reopen(options);
ASSERT_TRUE(dbfull()->GetDBOptions().track_and_verify_wals_in_manifest);
Status s =
dbfull()->SetDBOptions({{"track_and_verify_wals_in_manifest", "false"}});
ASSERT_FALSE(s.ok());
}
// RocksDB lite don't support dynamic options.
#ifndef ROCKSDB_LITE
TEST_F(DBOptionsTest, AvoidUpdatingOptions) {
Options options;
options.env = env_;
options.max_background_jobs = 4;
options.delayed_write_rate = 1024;
Reopen(options);
SyncPoint::GetInstance()->DisableProcessing();
SyncPoint::GetInstance()->ClearAllCallBacks();
bool is_changed_stats = false;
SyncPoint::GetInstance()->SetCallBack(
"DBImpl::WriteOptionsFile:PersistOptions", [&](void* /*arg*/) {
ASSERT_FALSE(is_changed_stats); // should only save options file once
is_changed_stats = true;
});
SyncPoint::GetInstance()->EnableProcessing();
// helper function to check the status and reset after each check
auto is_changed = [&] {
bool ret = is_changed_stats;
is_changed_stats = false;
return ret;
};
// without changing the value, but it's sanitized to a different value
ASSERT_OK(dbfull()->SetDBOptions({{"bytes_per_sync", "0"}}));
ASSERT_TRUE(is_changed());
// without changing the value
ASSERT_OK(dbfull()->SetDBOptions({{"max_background_jobs", "4"}}));
ASSERT_FALSE(is_changed());
// changing the value
ASSERT_OK(dbfull()->SetDBOptions({{"bytes_per_sync", "123"}}));
ASSERT_TRUE(is_changed());
// update again
ASSERT_OK(dbfull()->SetDBOptions({{"bytes_per_sync", "123"}}));
ASSERT_FALSE(is_changed());
// without changing a default value
ASSERT_OK(dbfull()->SetDBOptions({{"strict_bytes_per_sync", "false"}}));
ASSERT_FALSE(is_changed());
// now change
ASSERT_OK(dbfull()->SetDBOptions({{"strict_bytes_per_sync", "true"}}));
ASSERT_TRUE(is_changed());
// multiple values without change
ASSERT_OK(dbfull()->SetDBOptions(
{{"max_total_wal_size", "0"}, {"stats_dump_period_sec", "600"}}));
ASSERT_FALSE(is_changed());
// multiple values with change
ASSERT_OK(dbfull()->SetDBOptions(
{{"max_open_files", "100"}, {"stats_dump_period_sec", "600"}}));
ASSERT_TRUE(is_changed());
}
TEST_F(DBOptionsTest, GetLatestDBOptions) {
// GetOptions should be able to get latest option changed by SetOptions.
Options options;
options.create_if_missing = true;
options.env = env_;
Random rnd(228);
Reopen(options);
auto new_options = GetRandomizedMutableDBOptionsMap(&rnd);
ASSERT_OK(dbfull()->SetDBOptions(new_options));
ASSERT_EQ(new_options, GetMutableDBOptionsMap(dbfull()->GetDBOptions()));
}
TEST_F(DBOptionsTest, GetLatestCFOptions) {
// GetOptions should be able to get latest option changed by SetOptions.
Options options;
options.create_if_missing = true;
options.env = env_;
Random rnd(228);
Reopen(options);
CreateColumnFamilies({"foo"}, options);
ReopenWithColumnFamilies({"default", "foo"}, options);
auto options_default = GetRandomizedMutableCFOptionsMap(&rnd);
auto options_foo = GetRandomizedMutableCFOptionsMap(&rnd);
ASSERT_OK(dbfull()->SetOptions(handles_[0], options_default));
ASSERT_OK(dbfull()->SetOptions(handles_[1], options_foo));
ASSERT_EQ(options_default,
GetMutableCFOptionsMap(dbfull()->GetOptions(handles_[0])));
ASSERT_EQ(options_foo,
GetMutableCFOptionsMap(dbfull()->GetOptions(handles_[1])));
}
TEST_F(DBOptionsTest, SetMutableTableOptions) {
Options options;
options.create_if_missing = true;
options.env = env_;
options.blob_file_size = 16384;
BlockBasedTableOptions bbto;
bbto.no_block_cache = true;
bbto.block_size = 8192;
bbto.block_restart_interval = 7;
options.table_factory.reset(NewBlockBasedTableFactory(bbto));
Reopen(options);
ColumnFamilyHandle* cfh = dbfull()->DefaultColumnFamily();
Options c_opts = dbfull()->GetOptions(cfh);
const auto* c_bbto =
c_opts.table_factory->GetOptions<BlockBasedTableOptions>();
ASSERT_NE(c_bbto, nullptr);
ASSERT_EQ(c_opts.blob_file_size, 16384);
ASSERT_EQ(c_bbto->no_block_cache, true);
ASSERT_EQ(c_bbto->block_size, 8192);
ASSERT_EQ(c_bbto->block_restart_interval, 7);
ASSERT_OK(dbfull()->SetOptions(
cfh, {{"table_factory.block_size", "16384"},
{"table_factory.block_restart_interval", "11"}}));
ASSERT_EQ(c_bbto->block_size, 16384);
ASSERT_EQ(c_bbto->block_restart_interval, 11);
// Now set an option that is not mutable - options should not change
ASSERT_NOK(
dbfull()->SetOptions(cfh, {{"table_factory.no_block_cache", "false"}}));
ASSERT_EQ(c_bbto->no_block_cache, true);
ASSERT_EQ(c_bbto->block_size, 16384);
ASSERT_EQ(c_bbto->block_restart_interval, 11);
// Set some that are mutable and some that are not - options should not change
ASSERT_NOK(dbfull()->SetOptions(
cfh, {{"table_factory.no_block_cache", "false"},
{"table_factory.block_size", "8192"},
{"table_factory.block_restart_interval", "7"}}));
ASSERT_EQ(c_bbto->no_block_cache, true);
ASSERT_EQ(c_bbto->block_size, 16384);
ASSERT_EQ(c_bbto->block_restart_interval, 11);
// Set some that are mutable and some that do not exist - options should not
// change
ASSERT_NOK(dbfull()->SetOptions(
cfh, {{"table_factory.block_size", "8192"},
{"table_factory.does_not_exist", "true"},
{"table_factory.block_restart_interval", "7"}}));
ASSERT_EQ(c_bbto->no_block_cache, true);
ASSERT_EQ(c_bbto->block_size, 16384);
ASSERT_EQ(c_bbto->block_restart_interval, 11);
// Trying to change the table factory fails
ASSERT_NOK(dbfull()->SetOptions(
cfh, {{"table_factory", TableFactory::kPlainTableName()}}));
// Set some on the table and some on the Column Family
ASSERT_OK(dbfull()->SetOptions(
cfh, {{"table_factory.block_size", "16384"},
{"blob_file_size", "32768"},
{"table_factory.block_restart_interval", "13"}}));
c_opts = dbfull()->GetOptions(cfh);
ASSERT_EQ(c_opts.blob_file_size, 32768);
ASSERT_EQ(c_bbto->block_size, 16384);
ASSERT_EQ(c_bbto->block_restart_interval, 13);
// Set some on the table and a bad one on the ColumnFamily - options should
// not change
ASSERT_NOK(dbfull()->SetOptions(
cfh, {{"table_factory.block_size", "1024"},
{"no_such_option", "32768"},
{"table_factory.block_restart_interval", "7"}}));
ASSERT_EQ(c_bbto->block_size, 16384);
ASSERT_EQ(c_bbto->block_restart_interval, 13);
}
TEST_F(DBOptionsTest, SetWithCustomMemTableFactory) {
class DummySkipListFactory : public SkipListFactory {
public:
static const char* kClassName() { return "DummySkipListFactory"; }
const char* Name() const override { return kClassName(); }
explicit DummySkipListFactory() : SkipListFactory(2) {}
};
{
// Verify the DummySkipList cannot be created
ConfigOptions config_options;
config_options.ignore_unsupported_options = false;
std::unique_ptr<MemTableRepFactory> factory;
ASSERT_NOK(MemTableRepFactory::CreateFromString(
config_options, DummySkipListFactory::kClassName(), &factory));
}
Options options;
options.create_if_missing = true;
// Try with fail_if_options_file_error=false/true to update the options
for (bool on_error : {false, true}) {
options.fail_if_options_file_error = on_error;
options.env = env_;
options.disable_auto_compactions = false;
options.memtable_factory.reset(new DummySkipListFactory());
Reopen(options);
ColumnFamilyHandle* cfh = dbfull()->DefaultColumnFamily();
ASSERT_OK(
dbfull()->SetOptions(cfh, {{"disable_auto_compactions", "true"}}));
ColumnFamilyDescriptor cfd;
ASSERT_OK(cfh->GetDescriptor(&cfd));
ASSERT_STREQ(cfd.options.memtable_factory->Name(),
DummySkipListFactory::kClassName());
ColumnFamilyHandle* test = nullptr;
ASSERT_OK(dbfull()->CreateColumnFamily(options, "test", &test));
ASSERT_OK(test->GetDescriptor(&cfd));
ASSERT_STREQ(cfd.options.memtable_factory->Name(),
DummySkipListFactory::kClassName());
ASSERT_OK(dbfull()->DropColumnFamily(test));
delete test;
}
}
TEST_F(DBOptionsTest, SetBytesPerSync) {
const size_t kValueSize = 1024 * 1024; // 1MB
Options options;
options.create_if_missing = true;
options.bytes_per_sync = 1024 * 1024;
options.use_direct_reads = false;
options.write_buffer_size = 400 * kValueSize;
options.disable_auto_compactions = true;
options.compression = kNoCompression;
options.env = env_;
Reopen(options);
int counter = 0;
int low_bytes_per_sync = 0;
int i = 0;
const std::string kValue(kValueSize, 'v');
ASSERT_EQ(options.bytes_per_sync, dbfull()->GetDBOptions().bytes_per_sync);
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->SetCallBack(
"WritableFileWriter::RangeSync:0", [&](void* /*arg*/) { counter++; });
WriteOptions write_opts;
// should sync approximately 40MB/1MB ~= 40 times.
for (i = 0; i < 40; i++) {
ASSERT_OK(Put(Key(i), kValue, write_opts));
}
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
ASSERT_OK(dbfull()->CompactRange(CompactRangeOptions(), nullptr, nullptr));
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
low_bytes_per_sync = counter;
ASSERT_GT(low_bytes_per_sync, 35);
ASSERT_LT(low_bytes_per_sync, 45);
counter = 0;
// 8388608 = 8 * 1024 * 1024
ASSERT_OK(dbfull()->SetDBOptions({{"bytes_per_sync", "8388608"}}));
ASSERT_EQ(8388608, dbfull()->GetDBOptions().bytes_per_sync);
// should sync approximately 40MB*2/8MB ~= 10 times.
// data will be 40*2MB because of previous Puts too.
for (i = 0; i < 40; i++) {
ASSERT_OK(Put(Key(i), kValue, write_opts));
}
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
ASSERT_OK(dbfull()->CompactRange(CompactRangeOptions(), nullptr, nullptr));
ASSERT_GT(counter, 5);
ASSERT_LT(counter, 15);
// Redundant assert. But leaving it here just to get the point across that
// low_bytes_per_sync > counter.
ASSERT_GT(low_bytes_per_sync, counter);
}
TEST_F(DBOptionsTest, SetWalBytesPerSync) {
const size_t kValueSize = 1024 * 1024 * 3;
Options options;
options.create_if_missing = true;
options.wal_bytes_per_sync = 512;
options.write_buffer_size = 100 * kValueSize;
options.disable_auto_compactions = true;
options.compression = kNoCompression;
options.env = env_;
Reopen(options);
ASSERT_EQ(512, dbfull()->GetDBOptions().wal_bytes_per_sync);
std::atomic_int counter{0};
int low_bytes_per_sync = 0;
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->SetCallBack(
"WritableFileWriter::RangeSync:0",
[&](void* /*arg*/) { counter.fetch_add(1); });
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
const std::string kValue(kValueSize, 'v');
int i = 0;
for (; i < 10; i++) {
ASSERT_OK(Put(Key(i), kValue));
}
// Do not flush. If we flush here, SwitchWAL will reuse old WAL file since its
// empty and will not get the new wal_bytes_per_sync value.
low_bytes_per_sync = counter;
//5242880 = 1024 * 1024 * 5
ASSERT_OK(dbfull()->SetDBOptions({{"wal_bytes_per_sync", "5242880"}}));
ASSERT_EQ(5242880, dbfull()->GetDBOptions().wal_bytes_per_sync);
counter = 0;
i = 0;
for (; i < 10; i++) {
ASSERT_OK(Put(Key(i), kValue));
}
ASSERT_GT(counter, 0);
ASSERT_GT(low_bytes_per_sync, 0);
ASSERT_GT(low_bytes_per_sync, counter);
}
TEST_F(DBOptionsTest, WritableFileMaxBufferSize) {
Options options;
options.create_if_missing = true;
options.writable_file_max_buffer_size = 1024 * 1024;
options.level0_file_num_compaction_trigger = 3;
options.max_manifest_file_size = 1;
options.env = env_;
int buffer_size = 1024 * 1024;
Reopen(options);
ASSERT_EQ(buffer_size,
dbfull()->GetDBOptions().writable_file_max_buffer_size);
std::atomic<int> match_cnt(0);
std::atomic<int> unmatch_cnt(0);
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->SetCallBack(
"WritableFileWriter::WritableFileWriter:0", [&](void* arg) {
int value = static_cast<int>(reinterpret_cast<uintptr_t>(arg));
if (value == buffer_size) {
match_cnt++;
} else {
unmatch_cnt++;
}
});
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
int i = 0;
for (; i < 3; i++) {
ASSERT_OK(Put("foo", ToString(i)));
ASSERT_OK(Put("bar", ToString(i)));
ASSERT_OK(Flush());
}
ASSERT_OK(dbfull()->TEST_WaitForCompact());
ASSERT_EQ(unmatch_cnt, 0);
ASSERT_GE(match_cnt, 11);
ASSERT_OK(
dbfull()->SetDBOptions({{"writable_file_max_buffer_size", "524288"}}));
buffer_size = 512 * 1024;
match_cnt = 0;
unmatch_cnt = 0; // SetDBOptions() will create a WriteableFileWriter
ASSERT_EQ(buffer_size,
dbfull()->GetDBOptions().writable_file_max_buffer_size);
i = 0;
for (; i < 3; i++) {
ASSERT_OK(Put("foo", ToString(i)));
ASSERT_OK(Put("bar", ToString(i)));
ASSERT_OK(Flush());
}
ASSERT_OK(dbfull()->TEST_WaitForCompact());
ASSERT_EQ(unmatch_cnt, 0);
ASSERT_GE(match_cnt, 11);
}
TEST_F(DBOptionsTest, SetOptionsAndReopen) {
Random rnd(1044);
auto rand_opts = GetRandomizedMutableCFOptionsMap(&rnd);
ASSERT_OK(dbfull()->SetOptions(rand_opts));
// Verify if DB can be reopen after setting options.
Options options;
options.env = env_;
ASSERT_OK(TryReopen(options));
}
TEST_F(DBOptionsTest, EnableAutoCompactionAndTriggerStall) {
const std::string kValue(1024, 'v');
for (int method_type = 0; method_type < 2; method_type++) {
for (int option_type = 0; option_type < 4; option_type++) {
Options options;
options.create_if_missing = true;
options.disable_auto_compactions = true;
options.write_buffer_size = 1024 * 1024 * 10;
options.compression = CompressionType::kNoCompression;
options.level0_file_num_compaction_trigger = 1;
options.level0_stop_writes_trigger = std::numeric_limits<int>::max();
options.level0_slowdown_writes_trigger = std::numeric_limits<int>::max();
options.hard_pending_compaction_bytes_limit =
std::numeric_limits<uint64_t>::max();
options.soft_pending_compaction_bytes_limit =
std::numeric_limits<uint64_t>::max();
options.env = env_;
DestroyAndReopen(options);
int i = 0;
for (; i < 1024; i++) {
ASSERT_OK(Put(Key(i), kValue));
}
ASSERT_OK(Flush());
for (; i < 1024 * 2; i++) {
ASSERT_OK(Put(Key(i), kValue));
}
ASSERT_OK(Flush());
ASSERT_OK(dbfull()->TEST_WaitForFlushMemTable());
ASSERT_EQ(2, NumTableFilesAtLevel(0));
uint64_t l0_size = SizeAtLevel(0);
switch (option_type) {
case 0:
// test with level0_stop_writes_trigger
options.level0_stop_writes_trigger = 2;
options.level0_slowdown_writes_trigger = 2;
break;
case 1:
options.level0_slowdown_writes_trigger = 2;
break;
case 2:
options.hard_pending_compaction_bytes_limit = l0_size;
options.soft_pending_compaction_bytes_limit = l0_size;
break;
case 3:
options.soft_pending_compaction_bytes_limit = l0_size;
break;
}
Reopen(options);
ASSERT_OK(dbfull()->TEST_WaitForCompact());
ASSERT_FALSE(dbfull()->TEST_write_controler().IsStopped());
ASSERT_FALSE(dbfull()->TEST_write_controler().NeedsDelay());
SyncPoint::GetInstance()->LoadDependency(
{{"DBOptionsTest::EnableAutoCompactionAndTriggerStall:1",
"BackgroundCallCompaction:0"},
{"DBImpl::BackgroundCompaction():BeforePickCompaction",
"DBOptionsTest::EnableAutoCompactionAndTriggerStall:2"},
{"DBOptionsTest::EnableAutoCompactionAndTriggerStall:3",
"DBImpl::BackgroundCompaction():AfterPickCompaction"}});
// Block background compaction.
SyncPoint::GetInstance()->EnableProcessing();
switch (method_type) {
case 0:
ASSERT_OK(
dbfull()->SetOptions({{"disable_auto_compactions", "false"}}));
break;
case 1:
ASSERT_OK(dbfull()->EnableAutoCompaction(
{dbfull()->DefaultColumnFamily()}));
break;
}
TEST_SYNC_POINT("DBOptionsTest::EnableAutoCompactionAndTriggerStall:1");
// Wait for stall condition recalculate.
TEST_SYNC_POINT("DBOptionsTest::EnableAutoCompactionAndTriggerStall:2");
switch (option_type) {
case 0:
ASSERT_TRUE(dbfull()->TEST_write_controler().IsStopped());
break;
case 1:
ASSERT_FALSE(dbfull()->TEST_write_controler().IsStopped());
ASSERT_TRUE(dbfull()->TEST_write_controler().NeedsDelay());
break;
case 2:
ASSERT_TRUE(dbfull()->TEST_write_controler().IsStopped());
break;
case 3:
ASSERT_FALSE(dbfull()->TEST_write_controler().IsStopped());
ASSERT_TRUE(dbfull()->TEST_write_controler().NeedsDelay());
break;
}
TEST_SYNC_POINT("DBOptionsTest::EnableAutoCompactionAndTriggerStall:3");
// Background compaction executed.
ASSERT_OK(dbfull()->TEST_WaitForCompact());
ASSERT_FALSE(dbfull()->TEST_write_controler().IsStopped());
ASSERT_FALSE(dbfull()->TEST_write_controler().NeedsDelay());
}
}
}
TEST_F(DBOptionsTest, SetOptionsMayTriggerCompaction) {
Options options;
options.create_if_missing = true;
options.level0_file_num_compaction_trigger = 1000;
options.env = env_;
Reopen(options);
for (int i = 0; i < 3; i++) {
// Need to insert two keys to avoid trivial move.
ASSERT_OK(Put("foo", ToString(i)));
ASSERT_OK(Put("bar", ToString(i)));
ASSERT_OK(Flush());
}
ASSERT_EQ("3", FilesPerLevel());
ASSERT_OK(
dbfull()->SetOptions({{"level0_file_num_compaction_trigger", "3"}}));
ASSERT_OK(dbfull()->TEST_WaitForCompact());
ASSERT_EQ("0,1", FilesPerLevel());
}
TEST_F(DBOptionsTest, SetBackgroundCompactionThreads) {
Options options;
options.create_if_missing = true;
options.max_background_compactions = 1; // default value
options.env = env_;
Reopen(options);
ASSERT_EQ(1, dbfull()->TEST_BGCompactionsAllowed());
ASSERT_OK(dbfull()->SetDBOptions({{"max_background_compactions", "3"}}));
ASSERT_EQ(1, dbfull()->TEST_BGCompactionsAllowed());
auto stop_token = dbfull()->TEST_write_controler().GetStopToken();
ASSERT_EQ(3, dbfull()->TEST_BGCompactionsAllowed());
}
TEST_F(DBOptionsTest, SetBackgroundFlushThreads) {
Options options;
options.create_if_missing = true;
options.max_background_flushes = 1;
options.env = env_;
Reopen(options);
ASSERT_EQ(1, dbfull()->TEST_BGFlushesAllowed());
ASSERT_EQ(1, env_->GetBackgroundThreads(Env::Priority::HIGH));
ASSERT_OK(dbfull()->SetDBOptions({{"max_background_flushes", "3"}}));
ASSERT_EQ(3, env_->GetBackgroundThreads(Env::Priority::HIGH));
ASSERT_EQ(3, dbfull()->TEST_BGFlushesAllowed());
}
TEST_F(DBOptionsTest, SetBackgroundJobs) {
Options options;
options.create_if_missing = true;
options.max_background_jobs = 8;
options.env = env_;
Reopen(options);
for (int i = 0; i < 2; ++i) {
if (i > 0) {
options.max_background_jobs = 12;
ASSERT_OK(dbfull()->SetDBOptions(
{{"max_background_jobs",
std::to_string(options.max_background_jobs)}}));
}
const int expected_max_flushes = options.max_background_jobs / 4;
ASSERT_EQ(expected_max_flushes, dbfull()->TEST_BGFlushesAllowed());
ASSERT_EQ(1, dbfull()->TEST_BGCompactionsAllowed());
auto stop_token = dbfull()->TEST_write_controler().GetStopToken();
const int expected_max_compactions = 3 * expected_max_flushes;
ASSERT_EQ(expected_max_flushes, dbfull()->TEST_BGFlushesAllowed());
ASSERT_EQ(expected_max_compactions, dbfull()->TEST_BGCompactionsAllowed());
ASSERT_EQ(expected_max_flushes,
env_->GetBackgroundThreads(Env::Priority::HIGH));
ASSERT_EQ(expected_max_compactions,
env_->GetBackgroundThreads(Env::Priority::LOW));
}
}
TEST_F(DBOptionsTest, AvoidFlushDuringShutdown) {
Options options;
options.create_if_missing = true;
options.disable_auto_compactions = true;
options.env = env_;
WriteOptions write_without_wal;
write_without_wal.disableWAL = true;
ASSERT_FALSE(options.avoid_flush_during_shutdown);
DestroyAndReopen(options);
ASSERT_OK(Put("foo", "v1", write_without_wal));
Reopen(options);
ASSERT_EQ("v1", Get("foo"));
ASSERT_EQ("1", FilesPerLevel());
DestroyAndReopen(options);
ASSERT_OK(Put("foo", "v2", write_without_wal));
ASSERT_OK(dbfull()->SetDBOptions({{"avoid_flush_during_shutdown", "true"}}));
Reopen(options);
ASSERT_EQ("NOT_FOUND", Get("foo"));
ASSERT_EQ("", FilesPerLevel());
}
TEST_F(DBOptionsTest, SetDelayedWriteRateOption) {
Options options;
options.create_if_missing = true;
options.delayed_write_rate = 2 * 1024U * 1024U;
options.env = env_;
Reopen(options);
ASSERT_EQ(2 * 1024U * 1024U, dbfull()->TEST_write_controler().max_delayed_write_rate());
ASSERT_OK(dbfull()->SetDBOptions({{"delayed_write_rate", "20000"}}));
ASSERT_EQ(20000, dbfull()->TEST_write_controler().max_delayed_write_rate());
}
TEST_F(DBOptionsTest, MaxTotalWalSizeChange) {
Random rnd(1044);
const auto value_size = size_t(1024);
std::string value = rnd.RandomString(value_size);
Options options;
options.create_if_missing = true;
options.env = env_;
CreateColumnFamilies({"1", "2", "3"}, options);
ReopenWithColumnFamilies({"default", "1", "2", "3"}, options);
WriteOptions write_options;
const int key_count = 100;
for (int i = 0; i < key_count; ++i) {
for (size_t cf = 0; cf < handles_.size(); ++cf) {
ASSERT_OK(Put(static_cast<int>(cf), Key(i), value));
}
}
ASSERT_OK(dbfull()->SetDBOptions({{"max_total_wal_size", "10"}}));
for (size_t cf = 0; cf < handles_.size(); ++cf) {
ASSERT_OK(dbfull()->TEST_WaitForFlushMemTable(handles_[cf]));
ASSERT_EQ("1", FilesPerLevel(static_cast<int>(cf)));
}
}
TEST_F(DBOptionsTest, SetStatsDumpPeriodSec) {
Options options;
options.create_if_missing = true;
options.stats_dump_period_sec = 5;
options.env = env_;
Reopen(options);
ASSERT_EQ(5u, dbfull()->GetDBOptions().stats_dump_period_sec);
for (int i = 0; i < 20; i++) {
unsigned int num = rand() % 5000 + 1;
ASSERT_OK(
dbfull()->SetDBOptions({{"stats_dump_period_sec", ToString(num)}}));
ASSERT_EQ(num, dbfull()->GetDBOptions().stats_dump_period_sec);
}
Close();
}
TEST_F(DBOptionsTest, SetOptionsStatsPersistPeriodSec) {
Options options;
options.create_if_missing = true;
options.stats_persist_period_sec = 5;
options.env = env_;
Reopen(options);
ASSERT_EQ(5u, dbfull()->GetDBOptions().stats_persist_period_sec);
ASSERT_OK(dbfull()->SetDBOptions({{"stats_persist_period_sec", "12345"}}));
ASSERT_EQ(12345u, dbfull()->GetDBOptions().stats_persist_period_sec);
ASSERT_NOK(dbfull()->SetDBOptions({{"stats_persist_period_sec", "abcde"}}));
ASSERT_EQ(12345u, dbfull()->GetDBOptions().stats_persist_period_sec);
}
static void assert_candidate_files_empty(DBImpl* dbfull, const bool empty) {
dbfull->TEST_LockMutex();
JobContext job_context(0);
dbfull->FindObsoleteFiles(&job_context, false);
ASSERT_EQ(empty, job_context.full_scan_candidate_files.empty());
dbfull->TEST_UnlockMutex();
if (job_context.HaveSomethingToDelete()) {
// fulfill the contract of FindObsoleteFiles by calling PurgeObsoleteFiles
// afterwards; otherwise the test may hang on shutdown
dbfull->PurgeObsoleteFiles(job_context);
}
job_context.Clean();
}
TEST_F(DBOptionsTest, DeleteObsoleteFilesPeriodChange) {
Options options;
options.env = env_;
SetTimeElapseOnlySleepOnReopen(&options);
options.create_if_missing = true;
ASSERT_OK(TryReopen(options));
// Verify that candidate files set is empty when no full scan requested.
assert_candidate_files_empty(dbfull(), true);
ASSERT_OK(
dbfull()->SetDBOptions({{"delete_obsolete_files_period_micros", "0"}}));
// After delete_obsolete_files_period_micros updated to 0, the next call
// to FindObsoleteFiles should make a full scan
assert_candidate_files_empty(dbfull(), false);
ASSERT_OK(
dbfull()->SetDBOptions({{"delete_obsolete_files_period_micros", "20"}}));
assert_candidate_files_empty(dbfull(), true);
env_->MockSleepForMicroseconds(20);
assert_candidate_files_empty(dbfull(), true);
env_->MockSleepForMicroseconds(1);
assert_candidate_files_empty(dbfull(), false);
Close();
}
TEST_F(DBOptionsTest, MaxOpenFilesChange) {
SpecialEnv env(env_);
Options options;
options.env = CurrentOptions().env;
options.max_open_files = -1;
Reopen(options);
Cache* tc = dbfull()->TEST_table_cache();
ASSERT_EQ(-1, dbfull()->GetDBOptions().max_open_files);
ASSERT_LT(2000, tc->GetCapacity());
ASSERT_OK(dbfull()->SetDBOptions({{"max_open_files", "1024"}}));
ASSERT_EQ(1024, dbfull()->GetDBOptions().max_open_files);
// examine the table cache (actual size should be 1014)
ASSERT_GT(1500, tc->GetCapacity());
Close();
}
TEST_F(DBOptionsTest, SanitizeDelayedWriteRate) {
Options options;
options.env = CurrentOptions().env;
options.delayed_write_rate = 0;
Reopen(options);
ASSERT_EQ(16 * 1024 * 1024, dbfull()->GetDBOptions().delayed_write_rate);
options.rate_limiter.reset(NewGenericRateLimiter(31 * 1024 * 1024));
Reopen(options);
ASSERT_EQ(31 * 1024 * 1024, dbfull()->GetDBOptions().delayed_write_rate);
}
TEST_F(DBOptionsTest, SanitizeUniversalTTLCompaction) {
Options options;
options.env = CurrentOptions().env;
options.compaction_style = kCompactionStyleUniversal;
options.ttl = 0;
options.periodic_compaction_seconds = 0;
Reopen(options);
ASSERT_EQ(0, dbfull()->GetOptions().ttl);
ASSERT_EQ(0, dbfull()->GetOptions().periodic_compaction_seconds);
options.ttl = 0;
options.periodic_compaction_seconds = 100;
Reopen(options);
ASSERT_EQ(0, dbfull()->GetOptions().ttl);
ASSERT_EQ(100, dbfull()->GetOptions().periodic_compaction_seconds);
options.ttl = 100;
options.periodic_compaction_seconds = 0;
Reopen(options);
ASSERT_EQ(100, dbfull()->GetOptions().ttl);
ASSERT_EQ(100, dbfull()->GetOptions().periodic_compaction_seconds);
options.ttl = 100;
options.periodic_compaction_seconds = 500;
Reopen(options);
ASSERT_EQ(100, dbfull()->GetOptions().ttl);
ASSERT_EQ(100, dbfull()->GetOptions().periodic_compaction_seconds);
}
TEST_F(DBOptionsTest, SanitizeTtlDefault) {
Options options;
options.env = CurrentOptions().env;
Reopen(options);
ASSERT_EQ(30 * 24 * 60 * 60, dbfull()->GetOptions().ttl);
options.compaction_style = kCompactionStyleLevel;
options.ttl = 0;
Reopen(options);
ASSERT_EQ(0, dbfull()->GetOptions().ttl);
options.ttl = 100;
Reopen(options);
ASSERT_EQ(100, dbfull()->GetOptions().ttl);
}
TEST_F(DBOptionsTest, SanitizeFIFOPeriodicCompaction) {
Options options;
options.compaction_style = kCompactionStyleFIFO;
options.env = CurrentOptions().env;
options.ttl = 0;
Reopen(options);
ASSERT_EQ(30 * 24 * 60 * 60, dbfull()->GetOptions().ttl);
options.ttl = 100;
Reopen(options);
ASSERT_EQ(100, dbfull()->GetOptions().ttl);
options.ttl = 100 * 24 * 60 * 60;
Reopen(options);
ASSERT_EQ(100 * 24 * 60 * 60, dbfull()->GetOptions().ttl);
options.ttl = 200;
options.periodic_compaction_seconds = 300;
Reopen(options);
ASSERT_EQ(200, dbfull()->GetOptions().ttl);
options.ttl = 500;
options.periodic_compaction_seconds = 300;
Reopen(options);
ASSERT_EQ(300, dbfull()->GetOptions().ttl);
}
TEST_F(DBOptionsTest, SetFIFOCompactionOptions) {
Options options;
options.env = CurrentOptions().env;
options.compaction_style = kCompactionStyleFIFO;
options.write_buffer_size = 10 << 10; // 10KB
options.arena_block_size = 4096;
options.compression = kNoCompression;
options.create_if_missing = true;
options.compaction_options_fifo.allow_compaction = false;
env_->SetMockSleep();
options.env = env_;
// NOTE: Presumed unnecessary and removed: resetting mock time in env
// Test dynamically changing ttl.
options.ttl = 1 * 60 * 60; // 1 hour
ASSERT_OK(TryReopen(options));
Random rnd(301);
for (int i = 0; i < 10; i++) {
// Generate and flush a file about 10KB.
for (int j = 0; j < 10; j++) {
ASSERT_OK(Put(ToString(i * 20 + j), rnd.RandomString(980)));
}
ASSERT_OK(Flush());
}
ASSERT_OK(dbfull()->TEST_WaitForCompact());
ASSERT_EQ(NumTableFilesAtLevel(0), 10);
env_->MockSleepForSeconds(61);
// No files should be compacted as ttl is set to 1 hour.
ASSERT_EQ(dbfull()->GetOptions().ttl, 3600);
ASSERT_OK(dbfull()->CompactRange(CompactRangeOptions(), nullptr, nullptr));
ASSERT_EQ(NumTableFilesAtLevel(0), 10);
// Set ttl to 1 minute. So all files should get deleted.
ASSERT_OK(dbfull()->SetOptions({{"ttl", "60"}}));
ASSERT_EQ(dbfull()->GetOptions().ttl, 60);
ASSERT_OK(dbfull()->CompactRange(CompactRangeOptions(), nullptr, nullptr));
ASSERT_OK(dbfull()->TEST_WaitForCompact());
ASSERT_EQ(NumTableFilesAtLevel(0), 0);
// NOTE: Presumed unnecessary and removed: resetting mock time in env
// Test dynamically changing compaction_options_fifo.max_table_files_size
options.compaction_options_fifo.max_table_files_size = 500 << 10; // 00KB
options.ttl = 0;
DestroyAndReopen(options);
for (int i = 0; i < 10; i++) {
// Generate and flush a file about 10KB.
for (int j = 0; j < 10; j++) {
ASSERT_OK(Put(ToString(i * 20 + j), rnd.RandomString(980)));
}
ASSERT_OK(Flush());
}
ASSERT_OK(dbfull()->TEST_WaitForCompact());
ASSERT_EQ(NumTableFilesAtLevel(0), 10);
// No files should be compacted as max_table_files_size is set to 500 KB.
ASSERT_EQ(dbfull()->GetOptions().compaction_options_fifo.max_table_files_size,
500 << 10);
ASSERT_OK(dbfull()->CompactRange(CompactRangeOptions(), nullptr, nullptr));
ASSERT_EQ(NumTableFilesAtLevel(0), 10);
// Set max_table_files_size to 12 KB. So only 1 file should remain now.
ASSERT_OK(dbfull()->SetOptions(
{{"compaction_options_fifo", "{max_table_files_size=12288;}"}}));
ASSERT_EQ(dbfull()->GetOptions().compaction_options_fifo.max_table_files_size,
12 << 10);
ASSERT_OK(dbfull()->CompactRange(CompactRangeOptions(), nullptr, nullptr));
ASSERT_OK(dbfull()->TEST_WaitForCompact());
ASSERT_EQ(NumTableFilesAtLevel(0), 1);
// Test dynamically changing compaction_options_fifo.allow_compaction
options.compaction_options_fifo.max_table_files_size = 500 << 10; // 500KB
options.ttl = 0;
options.compaction_options_fifo.allow_compaction = false;
options.level0_file_num_compaction_trigger = 6;
DestroyAndReopen(options);
for (int i = 0; i < 10; i++) {
// Generate and flush a file about 10KB.
for (int j = 0; j < 10; j++) {
ASSERT_OK(Put(ToString(i * 20 + j), rnd.RandomString(980)));
}
ASSERT_OK(Flush());
}
ASSERT_OK(dbfull()->TEST_WaitForCompact());
ASSERT_EQ(NumTableFilesAtLevel(0), 10);
// No files should be compacted as max_table_files_size is set to 500 KB and
// allow_compaction is false
ASSERT_EQ(dbfull()->GetOptions().compaction_options_fifo.allow_compaction,
false);
ASSERT_OK(dbfull()->CompactRange(CompactRangeOptions(), nullptr, nullptr));
ASSERT_EQ(NumTableFilesAtLevel(0), 10);
// Set allow_compaction to true. So number of files should be between 1 and 5.
ASSERT_OK(dbfull()->SetOptions(
{{"compaction_options_fifo", "{allow_compaction=true;}"}}));
ASSERT_EQ(dbfull()->GetOptions().compaction_options_fifo.allow_compaction,
true);
ASSERT_OK(dbfull()->CompactRange(CompactRangeOptions(), nullptr, nullptr));
ASSERT_OK(dbfull()->TEST_WaitForCompact());
ASSERT_GE(NumTableFilesAtLevel(0), 1);
ASSERT_LE(NumTableFilesAtLevel(0), 5);
}
TEST_F(DBOptionsTest, CompactionReadaheadSizeChange) {
SpecialEnv env(env_);
Options options;
options.env = &env;
options.compaction_readahead_size = 0;
options.new_table_reader_for_compaction_inputs = true;
options.level0_file_num_compaction_trigger = 2;
const std::string kValue(1024, 'v');
Reopen(options);
ASSERT_EQ(0, dbfull()->GetDBOptions().compaction_readahead_size);
ASSERT_OK(dbfull()->SetDBOptions({{"compaction_readahead_size", "256"}}));
ASSERT_EQ(256, dbfull()->GetDBOptions().compaction_readahead_size);
for (int i = 0; i < 1024; i++) {
ASSERT_OK(Put(Key(i), kValue));
}
ASSERT_OK(Flush());
for (int i = 0; i < 1024 * 2; i++) {
ASSERT_OK(Put(Key(i), kValue));
}
ASSERT_OK(Flush());
ASSERT_OK(dbfull()->TEST_WaitForCompact());
ASSERT_EQ(256, env_->compaction_readahead_size_);
Close();
}
TEST_F(DBOptionsTest, FIFOTtlBackwardCompatible) {
Options options;
options.compaction_style = kCompactionStyleFIFO;
options.write_buffer_size = 10 << 10; // 10KB
options.create_if_missing = true;
options.env = CurrentOptions().env;
ASSERT_OK(TryReopen(options));
Random rnd(301);
for (int i = 0; i < 10; i++) {
// Generate and flush a file about 10KB.
for (int j = 0; j < 10; j++) {
ASSERT_OK(Put(ToString(i * 20 + j), rnd.RandomString(980)));
}
ASSERT_OK(Flush());
}
ASSERT_OK(dbfull()->TEST_WaitForCompact());
ASSERT_EQ(NumTableFilesAtLevel(0), 10);
// In release 6.0, ttl was promoted from a secondary level option under
// compaction_options_fifo to a top level option under ColumnFamilyOptions.
// We still need to handle old SetOptions calls but should ignore
// ttl under compaction_options_fifo.
ASSERT_OK(dbfull()->SetOptions(
{{"compaction_options_fifo",
"{allow_compaction=true;max_table_files_size=1024;ttl=731;}"},
{"ttl", "60"}}));
ASSERT_EQ(dbfull()->GetOptions().compaction_options_fifo.allow_compaction,
true);
ASSERT_EQ(dbfull()->GetOptions().compaction_options_fifo.max_table_files_size,
1024);
ASSERT_EQ(dbfull()->GetOptions().ttl, 60);
// Put ttl as the first option inside compaction_options_fifo. That works as
// it doesn't overwrite any other option.
ASSERT_OK(dbfull()->SetOptions(
{{"compaction_options_fifo",
"{ttl=985;allow_compaction=true;max_table_files_size=1024;}"},
{"ttl", "191"}}));
ASSERT_EQ(dbfull()->GetOptions().compaction_options_fifo.allow_compaction,
true);
ASSERT_EQ(dbfull()->GetOptions().compaction_options_fifo.max_table_files_size,
1024);
ASSERT_EQ(dbfull()->GetOptions().ttl, 191);
}
TEST_F(DBOptionsTest, ChangeCompression) {
if (!Snappy_Supported() || !LZ4_Supported()) {
return;
}
Options options;
options.write_buffer_size = 10 << 10; // 10KB
options.level0_file_num_compaction_trigger = 2;
options.create_if_missing = true;
options.compression = CompressionType::kLZ4Compression;
options.bottommost_compression = CompressionType::kNoCompression;
options.bottommost_compression_opts.level = 2;
options.bottommost_compression_opts.parallel_threads = 1;
options.env = CurrentOptions().env;
ASSERT_OK(TryReopen(options));
CompressionType compression_used = CompressionType::kLZ4Compression;
CompressionOptions compression_opt_used;
bool compacted = false;
SyncPoint::GetInstance()->SetCallBack(
"LevelCompactionPicker::PickCompaction:Return", [&](void* arg) {
Compaction* c = reinterpret_cast<Compaction*>(arg);
compression_used = c->output_compression();
compression_opt_used = c->output_compression_opts();
compacted = true;
});
SyncPoint::GetInstance()->EnableProcessing();
ASSERT_OK(Put("foo", "foofoofoo"));
ASSERT_OK(Put("bar", "foofoofoo"));
ASSERT_OK(Flush());
ASSERT_OK(Put("foo", "foofoofoo"));
ASSERT_OK(Put("bar", "foofoofoo"));
ASSERT_OK(Flush());
ASSERT_OK(dbfull()->TEST_WaitForCompact());
ASSERT_TRUE(compacted);
ASSERT_EQ(CompressionType::kNoCompression, compression_used);
ASSERT_EQ(options.compression_opts.level, compression_opt_used.level);
ASSERT_EQ(options.compression_opts.parallel_threads,
compression_opt_used.parallel_threads);
compression_used = CompressionType::kLZ4Compression;
compacted = false;
ASSERT_OK(dbfull()->SetOptions(
{{"bottommost_compression", "kSnappyCompression"},
{"bottommost_compression_opts", "0:6:0:0:4:true"}}));
ASSERT_OK(Put("foo", "foofoofoo"));
ASSERT_OK(Put("bar", "foofoofoo"));
ASSERT_OK(Flush());
ASSERT_OK(Put("foo", "foofoofoo"));
ASSERT_OK(Put("bar", "foofoofoo"));
ASSERT_OK(Flush());
ASSERT_OK(dbfull()->TEST_WaitForCompact());
ASSERT_TRUE(compacted);
ASSERT_EQ(CompressionType::kSnappyCompression, compression_used);
ASSERT_EQ(6, compression_opt_used.level);
// Right now parallel_level is not yet allowed to be changed.
SyncPoint::GetInstance()->DisableProcessing();
}
#endif // ROCKSDB_LITE
TEST_F(DBOptionsTest, BottommostCompressionOptsWithFallbackType) {
// Verify the bottommost compression options still take effect even when the
// bottommost compression type is left at its default value. Verify for both
// automatic and manual compaction.
if (!Snappy_Supported() || !LZ4_Supported()) {
return;
}
constexpr int kUpperCompressionLevel = 1;
constexpr int kBottommostCompressionLevel = 2;
constexpr int kNumL0Files = 2;
Options options = CurrentOptions();
options.level0_file_num_compaction_trigger = kNumL0Files;
options.compression = CompressionType::kLZ4Compression;
options.compression_opts.level = kUpperCompressionLevel;
options.bottommost_compression_opts.level = kBottommostCompressionLevel;
options.bottommost_compression_opts.enabled = true;
Reopen(options);
CompressionType compression_used = CompressionType::kDisableCompressionOption;
CompressionOptions compression_opt_used;
bool compacted = false;
SyncPoint::GetInstance()->SetCallBack(
"CompactionPicker::RegisterCompaction:Registered", [&](void* arg) {
Compaction* c = static_cast<Compaction*>(arg);
compression_used = c->output_compression();
compression_opt_used = c->output_compression_opts();
compacted = true;
});
SyncPoint::GetInstance()->EnableProcessing();
// First, verify for automatic compaction.
for (int i = 0; i < kNumL0Files; ++i) {
ASSERT_OK(Put("foo", "foofoofoo"));
ASSERT_OK(Put("bar", "foofoofoo"));
ASSERT_OK(Flush());
}
ASSERT_OK(dbfull()->TEST_WaitForCompact());
ASSERT_TRUE(compacted);
ASSERT_EQ(CompressionType::kLZ4Compression, compression_used);
ASSERT_EQ(kBottommostCompressionLevel, compression_opt_used.level);
// Second, verify for manual compaction.
compacted = false;
compression_used = CompressionType::kDisableCompressionOption;
compression_opt_used = CompressionOptions();
CompactRangeOptions cro;
cro.bottommost_level_compaction = BottommostLevelCompaction::kForceOptimized;
ASSERT_OK(dbfull()->CompactRange(cro, nullptr, nullptr));
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->ClearAllCallBacks();
ASSERT_TRUE(compacted);
ASSERT_EQ(CompressionType::kLZ4Compression, compression_used);
ASSERT_EQ(kBottommostCompressionLevel, compression_opt_used.level);
}
} // namespace ROCKSDB_NAMESPACE
int main(int argc, char** argv) {
ROCKSDB_NAMESPACE::port::InstallStackTraceHandler();
::testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}
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