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rocksdb/db/compaction/compaction_picker_test.cc
sdong a2b9be42b6 Try to start TTL earlier with kMinOverlappingRatio is used (#8749) 
Summary:
Right now, when options.ttl is set, compactions are triggered around the time when TTL is reached. This might cause extra compactions which are often bursty. This commit tries to mitigate it by picking those files earlier in normal compaction picking process. This is only implemented using kMinOverlappingRatio with Leveled compaction as it is the default value and it is more complicated to change other styles.

When a file is aged more than ttl/2, RocksDB starts to boost the compaction priority of files in normal compaction picking process, and hope by the time TTL is reached, very few extra compaction is needed.

In order for this to work, another change is made: during a compaction, if an output level file is older than ttl/2, cut output files based on original boundary (if it is not in the last level). This is to make sure that after an old file is moved to the next level, and new data is merged from the upper level, the new data falling into this range isn't reset with old timestamp. Without this change, in many cases, most files from one level will keep having old timestamp, even if they have newer data and we stuck in it.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/8749

Test Plan: Add a unit test to test the boosting logic. Will add a unit test to test it end-to-end.

Reviewed By: jay-zhuang

Differential Revision: D30735261

fbshipit-source-id: 503c2d89250b22911eb99e72b379be154de3428e
2021-11-01 14:36:31 -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).
#include <limits>
#include <string>
#include <utility>
#include "db/compaction/compaction.h"
#include "db/compaction/compaction_picker_fifo.h"
#include "db/compaction/compaction_picker_level.h"
#include "db/compaction/compaction_picker_universal.h"
#include "db/compaction/file_pri.h"
#include "test_util/testharness.h"
#include "test_util/testutil.h"
#include "util/string_util.h"
namespace ROCKSDB_NAMESPACE {
class CountingLogger : public Logger {
public:
using Logger::Logv;
void Logv(const char* /*format*/, va_list /*ap*/) override { log_count++; }
size_t log_count;
};
class CompactionPickerTest : public testing::Test {
public:
const Comparator* ucmp_;
InternalKeyComparator icmp_;
Options options_;
ImmutableOptions ioptions_;
MutableCFOptions mutable_cf_options_;
MutableDBOptions mutable_db_options_;
LevelCompactionPicker level_compaction_picker;
std::string cf_name_;
CountingLogger logger_;
LogBuffer log_buffer_;
uint32_t file_num_;
CompactionOptionsFIFO fifo_options_;
std::unique_ptr<VersionStorageInfo> vstorage_;
std::vector<std::unique_ptr<FileMetaData>> files_;
// does not own FileMetaData
std::unordered_map<uint32_t, std::pair<FileMetaData*, int>> file_map_;
// input files to compaction process.
std::vector<CompactionInputFiles> input_files_;
int compaction_level_start_;
CompactionPickerTest()
: ucmp_(BytewiseComparator()),
icmp_(ucmp_),
ioptions_(options_),
mutable_cf_options_(options_),
mutable_db_options_(),
level_compaction_picker(ioptions_, &icmp_),
cf_name_("dummy"),
log_buffer_(InfoLogLevel::INFO_LEVEL, &logger_),
file_num_(1),
vstorage_(nullptr) {
mutable_cf_options_.ttl = 0;
mutable_cf_options_.periodic_compaction_seconds = 0;
// ioptions_.compaction_pri = kMinOverlappingRatio has its own set of
// tests to cover.
ioptions_.compaction_pri = kByCompensatedSize;
fifo_options_.max_table_files_size = 1;
mutable_cf_options_.RefreshDerivedOptions(ioptions_);
ioptions_.cf_paths.emplace_back("dummy",
std::numeric_limits<uint64_t>::max());
}
~CompactionPickerTest() override {}
void NewVersionStorage(int num_levels, CompactionStyle style) {
DeleteVersionStorage();
options_.num_levels = num_levels;
vstorage_.reset(new VersionStorageInfo(&icmp_, ucmp_, options_.num_levels,
style, nullptr, false));
vstorage_->CalculateBaseBytes(ioptions_, mutable_cf_options_);
}
// Create a new VersionStorageInfo object so we can add mode files and then
// merge it with the existing VersionStorageInfo
void AddVersionStorage() {
temp_vstorage_.reset(new VersionStorageInfo(
&icmp_, ucmp_, options_.num_levels, ioptions_.compaction_style,
vstorage_.get(), false));
}
void DeleteVersionStorage() {
vstorage_.reset();
temp_vstorage_.reset();
files_.clear();
file_map_.clear();
input_files_.clear();
}
void Add(int level, uint32_t file_number, const char* smallest,
const char* largest, uint64_t file_size = 1, uint32_t path_id = 0,
SequenceNumber smallest_seq = 100, SequenceNumber largest_seq = 100,
size_t compensated_file_size = 0, bool marked_for_compact = false,
Temperature temperature = Temperature::kUnknown,
uint64_t oldest_ancestor_time = kUnknownOldestAncesterTime) {
VersionStorageInfo* vstorage;
if (temp_vstorage_) {
vstorage = temp_vstorage_.get();
} else {
vstorage = vstorage_.get();
}
assert(level < vstorage->num_levels());
FileMetaData* f = new FileMetaData(
file_number, path_id, file_size,
InternalKey(smallest, smallest_seq, kTypeValue),
InternalKey(largest, largest_seq, kTypeValue), smallest_seq,
largest_seq, marked_for_compact, kInvalidBlobFileNumber,
kUnknownOldestAncesterTime, kUnknownFileCreationTime,
kUnknownFileChecksum, kUnknownFileChecksumFuncName);
f->compensated_file_size =
(compensated_file_size != 0) ? compensated_file_size : file_size;
f->temperature = temperature;
f->oldest_ancester_time = oldest_ancestor_time;
vstorage->AddFile(level, f);
files_.emplace_back(f);
file_map_.insert({file_number, {f, level}});
}
void SetCompactionInputFilesLevels(int level_count, int start_level) {
input_files_.resize(level_count);
for (int i = 0; i < level_count; ++i) {
input_files_[i].level = start_level + i;
}
compaction_level_start_ = start_level;
}
void AddToCompactionFiles(uint32_t file_number) {
auto iter = file_map_.find(file_number);
assert(iter != file_map_.end());
int level = iter->second.second;
assert(level < vstorage_->num_levels());
input_files_[level - compaction_level_start_].files.emplace_back(
iter->second.first);
}
void UpdateVersionStorageInfo() {
if (temp_vstorage_) {
VersionBuilder builder(FileOptions(), &ioptions_, nullptr,
vstorage_.get(), nullptr);
ASSERT_OK(builder.SaveTo(temp_vstorage_.get()));
vstorage_ = std::move(temp_vstorage_);
}
vstorage_->CalculateBaseBytes(ioptions_, mutable_cf_options_);
vstorage_->UpdateFilesByCompactionPri(ioptions_, mutable_cf_options_);
vstorage_->UpdateNumNonEmptyLevels();
vstorage_->GenerateFileIndexer();
vstorage_->GenerateLevelFilesBrief();
vstorage_->ComputeCompactionScore(ioptions_, mutable_cf_options_);
vstorage_->GenerateLevel0NonOverlapping();
vstorage_->ComputeFilesMarkedForCompaction();
vstorage_->SetFinalized();
}
void AddFileToVersionStorage(int level, uint32_t file_number,
const char* smallest, const char* largest,
uint64_t file_size = 1, uint32_t path_id = 0,
SequenceNumber smallest_seq = 100,
SequenceNumber largest_seq = 100,
size_t compensated_file_size = 0,
bool marked_for_compact = false) {
VersionStorageInfo* base_vstorage = vstorage_.release();
vstorage_.reset(new VersionStorageInfo(&icmp_, ucmp_, options_.num_levels,
kCompactionStyleUniversal,
base_vstorage, false));
Add(level, file_number, smallest, largest, file_size, path_id, smallest_seq,
largest_seq, compensated_file_size, marked_for_compact);
VersionBuilder builder(FileOptions(), &ioptions_, nullptr, base_vstorage,
nullptr);
builder.SaveTo(vstorage_.get());
UpdateVersionStorageInfo();
}
private:
std::unique_ptr<VersionStorageInfo> temp_vstorage_;
};
TEST_F(CompactionPickerTest, Empty) {
NewVersionStorage(6, kCompactionStyleLevel);
UpdateVersionStorageInfo();
std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction.get() == nullptr);
}
TEST_F(CompactionPickerTest, Single) {
NewVersionStorage(6, kCompactionStyleLevel);
mutable_cf_options_.level0_file_num_compaction_trigger = 2;
Add(0, 1U, "p", "q");
UpdateVersionStorageInfo();
std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction.get() == nullptr);
}
TEST_F(CompactionPickerTest, Level0Trigger) {
NewVersionStorage(6, kCompactionStyleLevel);
mutable_cf_options_.level0_file_num_compaction_trigger = 2;
Add(0, 1U, "150", "200");
Add(0, 2U, "200", "250");
UpdateVersionStorageInfo();
std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction.get() != nullptr);
ASSERT_EQ(2U, compaction->num_input_files(0));
ASSERT_EQ(1U, compaction->input(0, 0)->fd.GetNumber());
ASSERT_EQ(2U, compaction->input(0, 1)->fd.GetNumber());
}
TEST_F(CompactionPickerTest, Level1Trigger) {
NewVersionStorage(6, kCompactionStyleLevel);
Add(1, 66U, "150", "200", 1000000000U);
UpdateVersionStorageInfo();
std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction.get() != nullptr);
ASSERT_EQ(1U, compaction->num_input_files(0));
ASSERT_EQ(66U, compaction->input(0, 0)->fd.GetNumber());
}
TEST_F(CompactionPickerTest, Level1Trigger2) {
mutable_cf_options_.target_file_size_base = 10000000000;
mutable_cf_options_.RefreshDerivedOptions(ioptions_);
NewVersionStorage(6, kCompactionStyleLevel);
Add(1, 66U, "150", "200", 1000000001U);
Add(1, 88U, "201", "300", 1000000000U);
Add(2, 6U, "150", "179", 1000000000U);
Add(2, 7U, "180", "220", 1000000000U);
Add(2, 8U, "221", "300", 1000000000U);
UpdateVersionStorageInfo();
std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction.get() != nullptr);
ASSERT_EQ(1U, compaction->num_input_files(0));
ASSERT_EQ(2U, compaction->num_input_files(1));
ASSERT_EQ(66U, compaction->input(0, 0)->fd.GetNumber());
ASSERT_EQ(6U, compaction->input(1, 0)->fd.GetNumber());
ASSERT_EQ(7U, compaction->input(1, 1)->fd.GetNumber());
ASSERT_EQ(uint64_t{1073741824}, compaction->OutputFilePreallocationSize());
}
TEST_F(CompactionPickerTest, LevelMaxScore) {
NewVersionStorage(6, kCompactionStyleLevel);
mutable_cf_options_.target_file_size_base = 10000000;
mutable_cf_options_.max_bytes_for_level_base = 10 * 1024 * 1024;
mutable_cf_options_.RefreshDerivedOptions(ioptions_);
Add(0, 1U, "150", "200", 1000000U);
// Level 1 score 1.2
Add(1, 66U, "150", "200", 6000000U);
Add(1, 88U, "201", "300", 6000000U);
// Level 2 score 1.8. File 7 is the largest. Should be picked
Add(2, 6U, "150", "179", 60000000U);
Add(2, 7U, "180", "220", 60000001U);
Add(2, 8U, "221", "300", 60000000U);
// Level 3 score slightly larger than 1
Add(3, 26U, "150", "170", 260000000U);
Add(3, 27U, "171", "179", 260000000U);
Add(3, 28U, "191", "220", 260000000U);
Add(3, 29U, "221", "300", 260000000U);
UpdateVersionStorageInfo();
std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction.get() != nullptr);
ASSERT_EQ(1U, compaction->num_input_files(0));
ASSERT_EQ(7U, compaction->input(0, 0)->fd.GetNumber());
ASSERT_EQ(mutable_cf_options_.target_file_size_base +
mutable_cf_options_.target_file_size_base / 10,
compaction->OutputFilePreallocationSize());
}
TEST_F(CompactionPickerTest, NeedsCompactionLevel) {
const int kLevels = 6;
const int kFileCount = 20;
for (int level = 0; level < kLevels - 1; ++level) {
NewVersionStorage(kLevels, kCompactionStyleLevel);
uint64_t file_size = vstorage_->MaxBytesForLevel(level) * 2 / kFileCount;
for (int file_count = 1; file_count <= kFileCount; ++file_count) {
// start a brand new version in each test.
NewVersionStorage(kLevels, kCompactionStyleLevel);
for (int i = 0; i < file_count; ++i) {
Add(level, i, ToString((i + 100) * 1000).c_str(),
ToString((i + 100) * 1000 + 999).c_str(),
file_size, 0, i * 100, i * 100 + 99);
}
UpdateVersionStorageInfo();
ASSERT_EQ(vstorage_->CompactionScoreLevel(0), level);
ASSERT_EQ(level_compaction_picker.NeedsCompaction(vstorage_.get()),
vstorage_->CompactionScore(0) >= 1);
// release the version storage
DeleteVersionStorage();
}
}
}
TEST_F(CompactionPickerTest, Level0TriggerDynamic) {
int num_levels = ioptions_.num_levels;
ioptions_.level_compaction_dynamic_level_bytes = true;
mutable_cf_options_.level0_file_num_compaction_trigger = 2;
mutable_cf_options_.max_bytes_for_level_base = 200;
mutable_cf_options_.max_bytes_for_level_multiplier = 10;
NewVersionStorage(num_levels, kCompactionStyleLevel);
Add(0, 1U, "150", "200");
Add(0, 2U, "200", "250");
UpdateVersionStorageInfo();
std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction.get() != nullptr);
ASSERT_EQ(2U, compaction->num_input_files(0));
ASSERT_EQ(1U, compaction->input(0, 0)->fd.GetNumber());
ASSERT_EQ(2U, compaction->input(0, 1)->fd.GetNumber());
ASSERT_EQ(1, static_cast<int>(compaction->num_input_levels()));
ASSERT_EQ(num_levels - 1, compaction->output_level());
}
TEST_F(CompactionPickerTest, Level0TriggerDynamic2) {
int num_levels = ioptions_.num_levels;
ioptions_.level_compaction_dynamic_level_bytes = true;
mutable_cf_options_.level0_file_num_compaction_trigger = 2;
mutable_cf_options_.max_bytes_for_level_base = 200;
mutable_cf_options_.max_bytes_for_level_multiplier = 10;
NewVersionStorage(num_levels, kCompactionStyleLevel);
Add(0, 1U, "150", "200");
Add(0, 2U, "200", "250");
Add(num_levels - 1, 3U, "200", "250", 300U);
UpdateVersionStorageInfo();
ASSERT_EQ(vstorage_->base_level(), num_levels - 2);
std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction.get() != nullptr);
ASSERT_EQ(2U, compaction->num_input_files(0));
ASSERT_EQ(1U, compaction->input(0, 0)->fd.GetNumber());
ASSERT_EQ(2U, compaction->input(0, 1)->fd.GetNumber());
ASSERT_EQ(1, static_cast<int>(compaction->num_input_levels()));
ASSERT_EQ(num_levels - 2, compaction->output_level());
}
TEST_F(CompactionPickerTest, Level0TriggerDynamic3) {
int num_levels = ioptions_.num_levels;
ioptions_.level_compaction_dynamic_level_bytes = true;
mutable_cf_options_.level0_file_num_compaction_trigger = 2;
mutable_cf_options_.max_bytes_for_level_base = 200;
mutable_cf_options_.max_bytes_for_level_multiplier = 10;
NewVersionStorage(num_levels, kCompactionStyleLevel);
Add(0, 1U, "150", "200");
Add(0, 2U, "200", "250");
Add(num_levels - 1, 3U, "200", "250", 300U);
Add(num_levels - 1, 4U, "300", "350", 3000U);
UpdateVersionStorageInfo();
ASSERT_EQ(vstorage_->base_level(), num_levels - 3);
std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction.get() != nullptr);
ASSERT_EQ(2U, compaction->num_input_files(0));
ASSERT_EQ(1U, compaction->input(0, 0)->fd.GetNumber());
ASSERT_EQ(2U, compaction->input(0, 1)->fd.GetNumber());
ASSERT_EQ(1, static_cast<int>(compaction->num_input_levels()));
ASSERT_EQ(num_levels - 3, compaction->output_level());
}
TEST_F(CompactionPickerTest, Level0TriggerDynamic4) {
int num_levels = ioptions_.num_levels;
ioptions_.level_compaction_dynamic_level_bytes = true;
mutable_cf_options_.level0_file_num_compaction_trigger = 2;
mutable_cf_options_.max_bytes_for_level_base = 200;
mutable_cf_options_.max_bytes_for_level_multiplier = 10;
NewVersionStorage(num_levels, kCompactionStyleLevel);
Add(0, 1U, "150", "200");
Add(0, 2U, "200", "250");
Add(num_levels - 1, 3U, "200", "250", 300U);
Add(num_levels - 1, 4U, "300", "350", 3000U);
Add(num_levels - 3, 5U, "150", "180", 3U);
Add(num_levels - 3, 6U, "181", "300", 3U);
Add(num_levels - 3, 7U, "400", "450", 3U);
UpdateVersionStorageInfo();
ASSERT_EQ(vstorage_->base_level(), num_levels - 3);
std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction.get() != nullptr);
ASSERT_EQ(2U, compaction->num_input_files(0));
ASSERT_EQ(1U, compaction->input(0, 0)->fd.GetNumber());
ASSERT_EQ(2U, compaction->input(0, 1)->fd.GetNumber());
ASSERT_EQ(2U, compaction->num_input_files(1));
ASSERT_EQ(num_levels - 3, compaction->level(1));
ASSERT_EQ(5U, compaction->input(1, 0)->fd.GetNumber());
ASSERT_EQ(6U, compaction->input(1, 1)->fd.GetNumber());
ASSERT_EQ(2, static_cast<int>(compaction->num_input_levels()));
ASSERT_EQ(num_levels - 3, compaction->output_level());
}
TEST_F(CompactionPickerTest, LevelTriggerDynamic4) {
int num_levels = ioptions_.num_levels;
ioptions_.level_compaction_dynamic_level_bytes = true;
ioptions_.compaction_pri = kMinOverlappingRatio;
mutable_cf_options_.level0_file_num_compaction_trigger = 2;
mutable_cf_options_.max_bytes_for_level_base = 200;
mutable_cf_options_.max_bytes_for_level_multiplier = 10;
NewVersionStorage(num_levels, kCompactionStyleLevel);
Add(0, 1U, "150", "200");
Add(num_levels - 1, 2U, "200", "250", 300U);
Add(num_levels - 1, 3U, "300", "350", 3000U);
Add(num_levels - 1, 4U, "400", "450", 3U);
Add(num_levels - 2, 5U, "150", "180", 300U);
Add(num_levels - 2, 6U, "181", "350", 500U);
Add(num_levels - 2, 7U, "400", "450", 200U);
UpdateVersionStorageInfo();
std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction.get() != nullptr);
ASSERT_EQ(1U, compaction->num_input_files(0));
ASSERT_EQ(5U, compaction->input(0, 0)->fd.GetNumber());
ASSERT_EQ(0, compaction->num_input_files(1));
ASSERT_EQ(1U, compaction->num_input_levels());
ASSERT_EQ(num_levels - 1, compaction->output_level());
}
// Universal and FIFO Compactions are not supported in ROCKSDB_LITE
#ifndef ROCKSDB_LITE
TEST_F(CompactionPickerTest, NeedsCompactionUniversal) {
NewVersionStorage(1, kCompactionStyleUniversal);
UniversalCompactionPicker universal_compaction_picker(
ioptions_, &icmp_);
UpdateVersionStorageInfo();
// must return false when there's no files.
ASSERT_EQ(universal_compaction_picker.NeedsCompaction(vstorage_.get()),
false);
// verify the trigger given different number of L0 files.
for (int i = 1;
i <= mutable_cf_options_.level0_file_num_compaction_trigger * 2; ++i) {
NewVersionStorage(1, kCompactionStyleUniversal);
Add(0, i, ToString((i + 100) * 1000).c_str(),
ToString((i + 100) * 1000 + 999).c_str(), 1000000, 0, i * 100,
i * 100 + 99);
UpdateVersionStorageInfo();
ASSERT_EQ(level_compaction_picker.NeedsCompaction(vstorage_.get()),
vstorage_->CompactionScore(0) >= 1);
}
}
TEST_F(CompactionPickerTest, CompactionUniversalIngestBehindReservedLevel) {
const uint64_t kFileSize = 100000;
NewVersionStorage(1, kCompactionStyleUniversal);
ioptions_.allow_ingest_behind = true;
ioptions_.num_levels = 3;
UniversalCompactionPicker universal_compaction_picker(ioptions_, &icmp_);
UpdateVersionStorageInfo();
// must return false when there's no files.
ASSERT_EQ(universal_compaction_picker.NeedsCompaction(vstorage_.get()),
false);
NewVersionStorage(3, kCompactionStyleUniversal);
Add(0, 1U, "150", "200", kFileSize, 0, 500, 550);
Add(0, 2U, "201", "250", kFileSize, 0, 401, 450);
Add(0, 4U, "260", "300", kFileSize, 0, 260, 300);
Add(1, 5U, "100", "151", kFileSize, 0, 200, 251);
Add(1, 3U, "301", "350", kFileSize, 0, 101, 150);
Add(2, 6U, "120", "200", kFileSize, 0, 20, 100);
UpdateVersionStorageInfo();
std::unique_ptr<Compaction> compaction(
universal_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
// output level should be the one above the bottom-most
ASSERT_EQ(1, compaction->output_level());
}
// Tests if the files can be trivially moved in multi level
// universal compaction when allow_trivial_move option is set
// In this test as the input files overlaps, they cannot
// be trivially moved.
TEST_F(CompactionPickerTest, CannotTrivialMoveUniversal) {
const uint64_t kFileSize = 100000;
mutable_cf_options_.compaction_options_universal.allow_trivial_move = true;
NewVersionStorage(1, kCompactionStyleUniversal);
UniversalCompactionPicker universal_compaction_picker(ioptions_, &icmp_);
UpdateVersionStorageInfo();
// must return false when there's no files.
ASSERT_EQ(universal_compaction_picker.NeedsCompaction(vstorage_.get()),
false);
NewVersionStorage(3, kCompactionStyleUniversal);
Add(0, 1U, "150", "200", kFileSize, 0, 500, 550);
Add(0, 2U, "201", "250", kFileSize, 0, 401, 450);
Add(0, 4U, "260", "300", kFileSize, 0, 260, 300);
Add(1, 5U, "100", "151", kFileSize, 0, 200, 251);
Add(1, 3U, "301", "350", kFileSize, 0, 101, 150);
Add(2, 6U, "120", "200", kFileSize, 0, 20, 100);
UpdateVersionStorageInfo();
std::unique_ptr<Compaction> compaction(
universal_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(!compaction->is_trivial_move());
}
// Tests if the files can be trivially moved in multi level
// universal compaction when allow_trivial_move option is set
// In this test as the input files doesn't overlaps, they should
// be trivially moved.
TEST_F(CompactionPickerTest, AllowsTrivialMoveUniversal) {
const uint64_t kFileSize = 100000;
mutable_cf_options_.compaction_options_universal.allow_trivial_move = true;
UniversalCompactionPicker universal_compaction_picker(ioptions_, &icmp_);
NewVersionStorage(3, kCompactionStyleUniversal);
Add(0, 1U, "150", "200", kFileSize, 0, 500, 550);
Add(0, 2U, "201", "250", kFileSize, 0, 401, 450);
Add(0, 4U, "260", "300", kFileSize, 0, 260, 300);
Add(1, 5U, "010", "080", kFileSize, 0, 200, 251);
Add(2, 3U, "301", "350", kFileSize, 0, 101, 150);
UpdateVersionStorageInfo();
std::unique_ptr<Compaction> compaction(
universal_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction->is_trivial_move());
}
TEST_F(CompactionPickerTest, UniversalPeriodicCompaction1) {
// The case where universal periodic compaction can be picked
// with some newer files being compacted.
const uint64_t kFileSize = 100000;
mutable_cf_options_.periodic_compaction_seconds = 1000;
UniversalCompactionPicker universal_compaction_picker(ioptions_, &icmp_);
NewVersionStorage(5, kCompactionStyleUniversal);
Add(0, 1U, "150", "200", kFileSize, 0, 500, 550);
Add(0, 2U, "201", "250", kFileSize, 0, 401, 450);
Add(0, 4U, "260", "300", kFileSize, 0, 260, 300);
Add(3, 5U, "010", "080", kFileSize, 0, 200, 251);
Add(4, 3U, "301", "350", kFileSize, 0, 101, 150);
Add(4, 6U, "501", "750", kFileSize, 0, 101, 150);
file_map_[2].first->being_compacted = true;
UpdateVersionStorageInfo();
vstorage_->TEST_AddFileMarkedForPeriodicCompaction(4, file_map_[3].first);
std::unique_ptr<Compaction> compaction(
universal_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction);
ASSERT_EQ(4, compaction->output_level());
ASSERT_EQ(0, compaction->start_level());
ASSERT_EQ(1U, compaction->num_input_files(0));
}
TEST_F(CompactionPickerTest, UniversalPeriodicCompaction2) {
// The case where universal periodic compaction does not
// pick up only level to compact if it doesn't cover
// any file marked as periodic compaction.
const uint64_t kFileSize = 100000;
mutable_cf_options_.periodic_compaction_seconds = 1000;
UniversalCompactionPicker universal_compaction_picker(ioptions_, &icmp_);
NewVersionStorage(5, kCompactionStyleUniversal);
Add(0, 1U, "150", "200", kFileSize, 0, 500, 550);
Add(3, 5U, "010", "080", kFileSize, 0, 200, 251);
Add(4, 3U, "301", "350", kFileSize, 0, 101, 150);
Add(4, 6U, "501", "750", kFileSize, 0, 101, 150);
file_map_[5].first->being_compacted = true;
UpdateVersionStorageInfo();
vstorage_->TEST_AddFileMarkedForPeriodicCompaction(0, file_map_[1].first);
std::unique_ptr<Compaction> compaction(
universal_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_FALSE(compaction);
}
TEST_F(CompactionPickerTest, UniversalPeriodicCompaction3) {
// The case where universal periodic compaction does not
// pick up only the last sorted run which is an L0 file if it isn't
// marked as periodic compaction.
const uint64_t kFileSize = 100000;
mutable_cf_options_.periodic_compaction_seconds = 1000;
UniversalCompactionPicker universal_compaction_picker(ioptions_, &icmp_);
NewVersionStorage(5, kCompactionStyleUniversal);
Add(0, 1U, "150", "200", kFileSize, 0, 500, 550);
Add(0, 5U, "010", "080", kFileSize, 0, 200, 251);
Add(0, 6U, "501", "750", kFileSize, 0, 101, 150);
file_map_[5].first->being_compacted = true;
UpdateVersionStorageInfo();
vstorage_->TEST_AddFileMarkedForPeriodicCompaction(0, file_map_[1].first);
std::unique_ptr<Compaction> compaction(
universal_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_FALSE(compaction);
}
TEST_F(CompactionPickerTest, UniversalPeriodicCompaction4) {
// The case where universal periodic compaction couldn't form
// a compaction that includes any file marked for periodic compaction.
// Right now we form the compaction anyway if it is more than one
// sorted run. Just put the case here to validate that it doesn't
// crash.
const uint64_t kFileSize = 100000;
mutable_cf_options_.periodic_compaction_seconds = 1000;
UniversalCompactionPicker universal_compaction_picker(ioptions_, &icmp_);
NewVersionStorage(5, kCompactionStyleUniversal);
Add(0, 1U, "150", "200", kFileSize, 0, 500, 550);
Add(2, 2U, "010", "080", kFileSize, 0, 200, 251);
Add(3, 5U, "010", "080", kFileSize, 0, 200, 251);
Add(4, 3U, "301", "350", kFileSize, 0, 101, 150);
Add(4, 6U, "501", "750", kFileSize, 0, 101, 150);
file_map_[2].first->being_compacted = true;
UpdateVersionStorageInfo();
vstorage_->TEST_AddFileMarkedForPeriodicCompaction(0, file_map_[2].first);
std::unique_ptr<Compaction> compaction(
universal_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(!compaction ||
compaction->start_level() != compaction->output_level());
}
TEST_F(CompactionPickerTest, UniversalPeriodicCompaction5) {
// Test single L0 file periodic compaction triggering.
const uint64_t kFileSize = 100000;
mutable_cf_options_.periodic_compaction_seconds = 1000;
UniversalCompactionPicker universal_compaction_picker(ioptions_, &icmp_);
NewVersionStorage(5, kCompactionStyleUniversal);
Add(0, 6U, "150", "200", kFileSize, 0, 500, 550);
UpdateVersionStorageInfo();
vstorage_->TEST_AddFileMarkedForPeriodicCompaction(0, file_map_[6].first);
std::unique_ptr<Compaction> compaction(
universal_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction);
ASSERT_EQ(0, compaction->start_level());
ASSERT_EQ(1U, compaction->num_input_files(0));
ASSERT_EQ(6U, compaction->input(0, 0)->fd.GetNumber());
ASSERT_EQ(4, compaction->output_level());
}
TEST_F(CompactionPickerTest, UniversalPeriodicCompaction6) {
// Test single sorted run non-L0 periodic compaction
const uint64_t kFileSize = 100000;
mutable_cf_options_.periodic_compaction_seconds = 1000;
UniversalCompactionPicker universal_compaction_picker(ioptions_, &icmp_);
NewVersionStorage(5, kCompactionStyleUniversal);
Add(4, 5U, "150", "200", kFileSize, 0, 500, 550);
Add(4, 6U, "350", "400", kFileSize, 0, 500, 550);
UpdateVersionStorageInfo();
vstorage_->TEST_AddFileMarkedForPeriodicCompaction(4, file_map_[6].first);
std::unique_ptr<Compaction> compaction(
universal_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction);
ASSERT_EQ(4, compaction->start_level());
ASSERT_EQ(2U, compaction->num_input_files(0));
ASSERT_EQ(5U, compaction->input(0, 0)->fd.GetNumber());
ASSERT_EQ(6U, compaction->input(0, 1)->fd.GetNumber());
ASSERT_EQ(4, compaction->output_level());
}
TEST_F(CompactionPickerTest, UniversalIncrementalSpace1) {
const uint64_t kFileSize = 100000;
mutable_cf_options_.max_compaction_bytes = 555555;
mutable_cf_options_.compaction_options_universal.incremental = true;
mutable_cf_options_.compaction_options_universal
.max_size_amplification_percent = 30;
UniversalCompactionPicker universal_compaction_picker(ioptions_, &icmp_);
NewVersionStorage(5, kCompactionStyleUniversal);
Add(0, 1U, "150", "200", kFileSize, 0, 500, 550);
Add(2, 2U, "010", "080", kFileSize, 0, 200, 251);
Add(3, 5U, "310", "380", kFileSize, 0, 200, 251);
Add(3, 6U, "410", "880", kFileSize, 0, 200, 251);
Add(3, 7U, "910", "980", 1, 0, 200, 251);
Add(4, 10U, "201", "250", kFileSize, 0, 101, 150);
Add(4, 11U, "301", "350", kFileSize, 0, 101, 150);
Add(4, 12U, "401", "450", kFileSize, 0, 101, 150);
Add(4, 13U, "501", "750", kFileSize, 0, 101, 150);
Add(4, 14U, "801", "850", kFileSize, 0, 101, 150);
Add(4, 15U, "901", "950", kFileSize, 0, 101, 150);
// Add(4, 15U, "960", "970", kFileSize, 0, 101, 150);
UpdateVersionStorageInfo();
std::unique_ptr<Compaction> compaction(
universal_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction);
ASSERT_EQ(4, compaction->output_level());
ASSERT_EQ(3, compaction->start_level());
ASSERT_EQ(2U, compaction->num_input_files(0));
ASSERT_EQ(5U, compaction->input(0, 0)->fd.GetNumber());
ASSERT_EQ(6U, compaction->input(0, 1)->fd.GetNumber());
// ASSERT_EQ(4U, compaction->num_input_files(1));
ASSERT_EQ(11U, compaction->input(1, 0)->fd.GetNumber());
ASSERT_EQ(12U, compaction->input(1, 1)->fd.GetNumber());
ASSERT_EQ(13U, compaction->input(1, 2)->fd.GetNumber());
ASSERT_EQ(14U, compaction->input(1, 3)->fd.GetNumber());
}
TEST_F(CompactionPickerTest, UniversalIncrementalSpace2) {
const uint64_t kFileSize = 100000;
mutable_cf_options_.max_compaction_bytes = 400000;
mutable_cf_options_.compaction_options_universal.incremental = true;
mutable_cf_options_.compaction_options_universal
.max_size_amplification_percent = 30;
UniversalCompactionPicker universal_compaction_picker(ioptions_, &icmp_);
NewVersionStorage(5, kCompactionStyleUniversal);
Add(0, 1U, "150", "200", kFileSize, 0, 500, 550);
Add(1, 2U, "010", "080", kFileSize, 0, 200, 251);
Add(2, 5U, "310", "380", kFileSize, 0, 200, 251);
Add(2, 6U, "410", "880", kFileSize, 0, 200, 251);
Add(2, 7U, "910", "980", kFileSize, 0, 200, 251);
Add(4, 10U, "201", "250", kFileSize, 0, 101, 150);
Add(4, 11U, "301", "350", kFileSize, 0, 101, 150);
Add(4, 12U, "401", "450", kFileSize, 0, 101, 150);
Add(4, 13U, "501", "750", kFileSize, 0, 101, 150);
Add(4, 14U, "801", "850", kFileSize, 0, 101, 150);
Add(4, 15U, "901", "950", kFileSize, 0, 101, 150);
UpdateVersionStorageInfo();
std::unique_ptr<Compaction> compaction(
universal_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction);
ASSERT_EQ(4, compaction->output_level());
ASSERT_EQ(2, compaction->start_level());
ASSERT_EQ(1U, compaction->num_input_files(0));
ASSERT_EQ(7U, compaction->input(0, 0)->fd.GetNumber());
ASSERT_EQ(1U, compaction->num_input_files(1));
ASSERT_EQ(15U, compaction->input(1, 0)->fd.GetNumber());
}
TEST_F(CompactionPickerTest, UniversalIncrementalSpace3) {
// Test bottom level files falling between gaps between two upper level
// files
const uint64_t kFileSize = 100000;
mutable_cf_options_.max_compaction_bytes = 300000;
mutable_cf_options_.compaction_options_universal.incremental = true;
mutable_cf_options_.compaction_options_universal
.max_size_amplification_percent = 30;
UniversalCompactionPicker universal_compaction_picker(ioptions_, &icmp_);
NewVersionStorage(5, kCompactionStyleUniversal);
Add(0, 1U, "150", "200", kFileSize, 0, 500, 550);
Add(2, 2U, "010", "080", kFileSize, 0, 200, 251);
Add(3, 5U, "000", "180", kFileSize, 0, 200, 251);
Add(3, 6U, "181", "190", kFileSize, 0, 200, 251);
Add(3, 7U, "710", "810", kFileSize, 0, 200, 251);
Add(3, 8U, "820", "830", kFileSize, 0, 200, 251);
Add(3, 9U, "900", "991", kFileSize, 0, 200, 251);
Add(4, 10U, "201", "250", kFileSize, 0, 101, 150);
Add(4, 11U, "301", "350", kFileSize, 0, 101, 150);
Add(4, 12U, "401", "450", kFileSize, 0, 101, 150);
Add(4, 13U, "501", "750", kFileSize, 0, 101, 150);
Add(4, 14U, "801", "850", kFileSize, 0, 101, 150);
Add(4, 15U, "901", "950", kFileSize, 0, 101, 150);
UpdateVersionStorageInfo();
std::unique_ptr<Compaction> compaction(
universal_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction);
ASSERT_EQ(4, compaction->output_level());
ASSERT_EQ(2, compaction->start_level());
ASSERT_EQ(1U, compaction->num_input_files(0));
ASSERT_EQ(2U, compaction->input(0, 0)->fd.GetNumber());
ASSERT_EQ(2U, compaction->num_input_files(1));
ASSERT_EQ(5U, compaction->input(1, 0)->fd.GetNumber());
ASSERT_EQ(6U, compaction->input(1, 1)->fd.GetNumber());
ASSERT_EQ(0, compaction->num_input_files(2));
}
TEST_F(CompactionPickerTest, UniversalIncrementalSpace4) {
// Test compaction candidates always cover many files.
const uint64_t kFileSize = 100000;
mutable_cf_options_.max_compaction_bytes = 3200000;
mutable_cf_options_.compaction_options_universal.incremental = true;
mutable_cf_options_.compaction_options_universal
.max_size_amplification_percent = 30;
UniversalCompactionPicker universal_compaction_picker(ioptions_, &icmp_);
NewVersionStorage(5, kCompactionStyleUniversal);
Add(0, 1U, "150", "200", kFileSize, 0, 500, 550);
Add(2, 2U, "010", "080", kFileSize, 0, 200, 251);
// Generate files like following:
// L3: (1101, 1180) (1201, 1280) ... (7901, 7908)
// L4: (1130, 1150) (1160, 1210) (1230, 1250) (1260 1310) ... (7960, 8010)
for (int i = 11; i < 79; i++) {
Add(3, 100 + i * 3, ToString(i * 100).c_str(),
ToString(i * 100 + 80).c_str(), kFileSize, 0, 200, 251);
// Add a tie breaker
if (i == 66) {
Add(3, 10000U, "6690", "6699", kFileSize, 0, 200, 251);
}
Add(4, 100 + i * 3 + 1, ToString(i * 100 + 30).c_str(),
ToString(i * 100 + 50).c_str(), kFileSize, 0, 200, 251);
Add(4, 100 + i * 3 + 2, ToString(i * 100 + 60).c_str(),
ToString(i * 100 + 110).c_str(), kFileSize, 0, 200, 251);
}
UpdateVersionStorageInfo();
std::unique_ptr<Compaction> compaction(
universal_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction);
ASSERT_EQ(4, compaction->output_level());
ASSERT_EQ(3, compaction->start_level());
ASSERT_EQ(6U, compaction->num_input_files(0));
ASSERT_EQ(100 + 62U * 3, compaction->input(0, 0)->fd.GetNumber());
ASSERT_EQ(10000U, compaction->input(0, 5)->fd.GetNumber());
ASSERT_EQ(11, compaction->num_input_files(1));
}
TEST_F(CompactionPickerTest, UniversalIncrementalSpace5) {
// Test compaction candidates always cover many files with some single
// files larger than size threshold.
const uint64_t kFileSize = 100000;
mutable_cf_options_.max_compaction_bytes = 3200000;
mutable_cf_options_.compaction_options_universal.incremental = true;
mutable_cf_options_.compaction_options_universal
.max_size_amplification_percent = 30;
UniversalCompactionPicker universal_compaction_picker(ioptions_, &icmp_);
NewVersionStorage(5, kCompactionStyleUniversal);
Add(0, 1U, "150", "200", kFileSize, 0, 500, 550);
Add(2, 2U, "010", "080", kFileSize, 0, 200, 251);
// Generate files like following:
// L3: (1101, 1180) (1201, 1280) ... (7901, 7908)
// L4: (1130, 1150) (1160, 1210) (1230, 1250) (1260 1310) ... (7960, 8010)
for (int i = 11; i < 70; i++) {
Add(3, 100 + i * 3, ToString(i * 100).c_str(),
ToString(i * 100 + 80).c_str(),
i % 10 == 9 ? kFileSize * 100 : kFileSize, 0, 200, 251);
Add(4, 100 + i * 3 + 1, ToString(i * 100 + 30).c_str(),
ToString(i * 100 + 50).c_str(), kFileSize, 0, 200, 251);
Add(4, 100 + i * 3 + 2, ToString(i * 100 + 60).c_str(),
ToString(i * 100 + 110).c_str(), kFileSize, 0, 200, 251);
}
UpdateVersionStorageInfo();
std::unique_ptr<Compaction> compaction(
universal_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction);
ASSERT_EQ(4, compaction->output_level());
ASSERT_EQ(3, compaction->start_level());
ASSERT_EQ(6U, compaction->num_input_files(0));
ASSERT_EQ(100 + 14 * 3, compaction->input(0, 0)->fd.GetNumber());
ASSERT_EQ(100 + 19 * 3, compaction->input(0, 5)->fd.GetNumber());
ASSERT_EQ(13, compaction->num_input_files(1));
}
TEST_F(CompactionPickerTest, NeedsCompactionFIFO) {
NewVersionStorage(1, kCompactionStyleFIFO);
const int kFileCount =
mutable_cf_options_.level0_file_num_compaction_trigger * 3;
const uint64_t kFileSize = 100000;
const uint64_t kMaxSize = kFileSize * kFileCount / 2;
fifo_options_.max_table_files_size = kMaxSize;
mutable_cf_options_.compaction_options_fifo = fifo_options_;
FIFOCompactionPicker fifo_compaction_picker(ioptions_, &icmp_);
UpdateVersionStorageInfo();
// must return false when there's no files.
ASSERT_EQ(fifo_compaction_picker.NeedsCompaction(vstorage_.get()), false);
// verify whether compaction is needed based on the current
// size of L0 files.
uint64_t current_size = 0;
for (int i = 1; i <= kFileCount; ++i) {
NewVersionStorage(1, kCompactionStyleFIFO);
Add(0, i, ToString((i + 100) * 1000).c_str(),
ToString((i + 100) * 1000 + 999).c_str(),
kFileSize, 0, i * 100, i * 100 + 99);
current_size += kFileSize;
UpdateVersionStorageInfo();
ASSERT_EQ(fifo_compaction_picker.NeedsCompaction(vstorage_.get()),
vstorage_->CompactionScore(0) >= 1);
}
}
TEST_F(CompactionPickerTest, FIFOToWarm1) {
NewVersionStorage(1, kCompactionStyleFIFO);
const uint64_t kFileSize = 100000;
const uint64_t kMaxSize = kFileSize * 100000;
uint64_t kWarmThreshold = 2000;
fifo_options_.max_table_files_size = kMaxSize;
fifo_options_.age_for_warm = kWarmThreshold;
mutable_cf_options_.compaction_options_fifo = fifo_options_;
mutable_cf_options_.level0_file_num_compaction_trigger = 2;
mutable_cf_options_.max_compaction_bytes = kFileSize * 100;
FIFOCompactionPicker fifo_compaction_picker(ioptions_, &icmp_);
int64_t current_time = 0;
ASSERT_OK(Env::Default()->GetCurrentTime(&current_time));
uint64_t threshold_time =
static_cast<uint64_t>(current_time) - kWarmThreshold;
Add(0, 6U, "240", "290", 2 * kFileSize, 0, 2900, 3000, 0, true,
Temperature::kUnknown, static_cast<uint64_t>(current_time) - 100);
Add(0, 5U, "240", "290", 2 * kFileSize, 0, 2700, 2800, 0, true,
Temperature::kUnknown, threshold_time + 100);
Add(0, 4U, "260", "300", 1 * kFileSize, 0, 2500, 2600, 0, true,
Temperature::kUnknown, threshold_time - 2000);
Add(0, 3U, "200", "300", 4 * kFileSize, 0, 2300, 2400, 0, true,
Temperature::kUnknown, threshold_time - 3000);
UpdateVersionStorageInfo();
ASSERT_EQ(fifo_compaction_picker.NeedsCompaction(vstorage_.get()), true);
std::unique_ptr<Compaction> compaction(fifo_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction.get() != nullptr);
ASSERT_EQ(1U, compaction->num_input_files(0));
ASSERT_EQ(3U, compaction->input(0, 0)->fd.GetNumber());
}
TEST_F(CompactionPickerTest, FIFOToWarm2) {
NewVersionStorage(1, kCompactionStyleFIFO);
const uint64_t kFileSize = 100000;
const uint64_t kMaxSize = kFileSize * 100000;
uint64_t kWarmThreshold = 2000;
fifo_options_.max_table_files_size = kMaxSize;
fifo_options_.age_for_warm = kWarmThreshold;
mutable_cf_options_.compaction_options_fifo = fifo_options_;
mutable_cf_options_.level0_file_num_compaction_trigger = 2;
mutable_cf_options_.max_compaction_bytes = kFileSize * 100;
FIFOCompactionPicker fifo_compaction_picker(ioptions_, &icmp_);
int64_t current_time = 0;
ASSERT_OK(Env::Default()->GetCurrentTime(&current_time));
uint64_t threshold_time =
static_cast<uint64_t>(current_time) - kWarmThreshold;
Add(0, 6U, "240", "290", 2 * kFileSize, 0, 2900, 3000, 0, true,
Temperature::kUnknown, static_cast<uint64_t>(current_time) - 100);
Add(0, 5U, "240", "290", 2 * kFileSize, 0, 2700, 2800, 0, true,
Temperature::kUnknown, threshold_time + 100);
Add(0, 4U, "260", "300", 1 * kFileSize, 0, 2500, 2600, 0, true,
Temperature::kUnknown, threshold_time - 2000);
Add(0, 3U, "200", "300", 4 * kFileSize, 0, 2300, 2400, 0, true,
Temperature::kUnknown, threshold_time - 3000);
Add(0, 2U, "200", "300", 4 * kFileSize, 0, 2100, 2200, 0, true,
Temperature::kUnknown, threshold_time - 4000);
UpdateVersionStorageInfo();
ASSERT_EQ(fifo_compaction_picker.NeedsCompaction(vstorage_.get()), true);
std::unique_ptr<Compaction> compaction(fifo_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction.get() != nullptr);
ASSERT_EQ(2U, compaction->num_input_files(0));
ASSERT_EQ(2U, compaction->input(0, 0)->fd.GetNumber());
ASSERT_EQ(3U, compaction->input(0, 1)->fd.GetNumber());
}
TEST_F(CompactionPickerTest, FIFOToWarmMaxSize) {
NewVersionStorage(1, kCompactionStyleFIFO);
const uint64_t kFileSize = 100000;
const uint64_t kMaxSize = kFileSize * 100000;
uint64_t kWarmThreshold = 2000;
fifo_options_.max_table_files_size = kMaxSize;
fifo_options_.age_for_warm = kWarmThreshold;
mutable_cf_options_.compaction_options_fifo = fifo_options_;
mutable_cf_options_.level0_file_num_compaction_trigger = 2;
mutable_cf_options_.max_compaction_bytes = kFileSize * 9;
FIFOCompactionPicker fifo_compaction_picker(ioptions_, &icmp_);
int64_t current_time = 0;
ASSERT_OK(Env::Default()->GetCurrentTime(&current_time));
uint64_t threshold_time =
static_cast<uint64_t>(current_time) - kWarmThreshold;
Add(0, 6U, "240", "290", 2 * kFileSize, 0, 2900, 3000, 0, true,
Temperature::kUnknown, static_cast<uint64_t>(current_time) - 100);
Add(0, 5U, "240", "290", 2 * kFileSize, 0, 2700, 2800, 0, true,
Temperature::kUnknown, threshold_time + 100);
Add(0, 4U, "260", "300", 1 * kFileSize, 0, 2500, 2600, 0, true,
Temperature::kUnknown, threshold_time - 2000);
Add(0, 3U, "200", "300", 4 * kFileSize, 0, 2300, 2400, 0, true,
Temperature::kUnknown, threshold_time - 3000);
Add(0, 2U, "200", "300", 4 * kFileSize, 0, 2100, 2200, 0, true,
Temperature::kUnknown, threshold_time - 4000);
Add(0, 1U, "200", "300", 4 * kFileSize, 0, 2000, 2100, 0, true,
Temperature::kUnknown, threshold_time - 5000);
UpdateVersionStorageInfo();
ASSERT_EQ(fifo_compaction_picker.NeedsCompaction(vstorage_.get()), true);
std::unique_ptr<Compaction> compaction(fifo_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction.get() != nullptr);
ASSERT_EQ(2U, compaction->num_input_files(0));
ASSERT_EQ(1U, compaction->input(0, 0)->fd.GetNumber());
ASSERT_EQ(2U, compaction->input(0, 1)->fd.GetNumber());
}
TEST_F(CompactionPickerTest, FIFOToWarmWithExistingWarm) {
NewVersionStorage(1, kCompactionStyleFIFO);
const uint64_t kFileSize = 100000;
const uint64_t kMaxSize = kFileSize * 100000;
uint64_t kWarmThreshold = 2000;
fifo_options_.max_table_files_size = kMaxSize;
fifo_options_.age_for_warm = kWarmThreshold;
mutable_cf_options_.compaction_options_fifo = fifo_options_;
mutable_cf_options_.level0_file_num_compaction_trigger = 2;
mutable_cf_options_.max_compaction_bytes = kFileSize * 100;
FIFOCompactionPicker fifo_compaction_picker(ioptions_, &icmp_);
int64_t current_time = 0;
ASSERT_OK(Env::Default()->GetCurrentTime(&current_time));
uint64_t threshold_time =
static_cast<uint64_t>(current_time) - kWarmThreshold;
Add(0, 6U, "240", "290", 2 * kFileSize, 0, 2900, 3000, 0, true,
Temperature::kUnknown, static_cast<uint64_t>(current_time) - 100);
Add(0, 5U, "240", "290", 2 * kFileSize, 0, 2700, 2800, 0, true,
Temperature::kUnknown, threshold_time + 100);
Add(0, 4U, "260", "300", 1 * kFileSize, 0, 2500, 2600, 0, true,
Temperature::kUnknown, threshold_time - 2000);
Add(0, 3U, "200", "300", 4 * kFileSize, 0, 2300, 2400, 0, true,
Temperature::kUnknown, threshold_time - 3000);
Add(0, 2U, "200", "300", 4 * kFileSize, 0, 2100, 2200, 0, true,
Temperature::kUnknown, threshold_time - 4000);
Add(0, 1U, "200", "300", 4 * kFileSize, 0, 2000, 2100, 0, true,
Temperature::kWarm, threshold_time - 5000);
UpdateVersionStorageInfo();
ASSERT_EQ(fifo_compaction_picker.NeedsCompaction(vstorage_.get()), true);
std::unique_ptr<Compaction> compaction(fifo_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction.get() != nullptr);
ASSERT_EQ(2U, compaction->num_input_files(0));
ASSERT_EQ(2U, compaction->input(0, 0)->fd.GetNumber());
ASSERT_EQ(3U, compaction->input(0, 1)->fd.GetNumber());
}
TEST_F(CompactionPickerTest, FIFOToWarmWithOngoing) {
NewVersionStorage(1, kCompactionStyleFIFO);
const uint64_t kFileSize = 100000;
const uint64_t kMaxSize = kFileSize * 100000;
uint64_t kWarmThreshold = 2000;
fifo_options_.max_table_files_size = kMaxSize;
fifo_options_.age_for_warm = kWarmThreshold;
mutable_cf_options_.compaction_options_fifo = fifo_options_;
mutable_cf_options_.level0_file_num_compaction_trigger = 2;
mutable_cf_options_.max_compaction_bytes = kFileSize * 100;
FIFOCompactionPicker fifo_compaction_picker(ioptions_, &icmp_);
int64_t current_time = 0;
ASSERT_OK(Env::Default()->GetCurrentTime(&current_time));
uint64_t threshold_time =
static_cast<uint64_t>(current_time) - kWarmThreshold;
Add(0, 6U, "240", "290", 2 * kFileSize, 0, 2900, 3000, 0, true,
Temperature::kUnknown, static_cast<uint64_t>(current_time) - 100);
Add(0, 5U, "240", "290", 2 * kFileSize, 0, 2700, 2800, 0, true,
Temperature::kUnknown, threshold_time + 100);
Add(0, 4U, "260", "300", 1 * kFileSize, 0, 2500, 2600, 0, true,
Temperature::kUnknown, threshold_time - 2000);
Add(0, 3U, "200", "300", 4 * kFileSize, 0, 2300, 2400, 0, true,
Temperature::kUnknown, threshold_time - 3000);
Add(0, 2U, "200", "300", 4 * kFileSize, 0, 2100, 2200, 0, true,
Temperature::kUnknown, threshold_time - 4000);
Add(0, 1U, "200", "300", 4 * kFileSize, 0, 2000, 2100, 0, true,
Temperature::kWarm, threshold_time - 5000);
file_map_[2].first->being_compacted = true;
UpdateVersionStorageInfo();
ASSERT_EQ(fifo_compaction_picker.NeedsCompaction(vstorage_.get()), true);
std::unique_ptr<Compaction> compaction(fifo_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
// Stop if a file is being compacted
ASSERT_TRUE(compaction.get() == nullptr);
}
TEST_F(CompactionPickerTest, FIFOToWarmWithHotBetweenWarms) {
NewVersionStorage(1, kCompactionStyleFIFO);
const uint64_t kFileSize = 100000;
const uint64_t kMaxSize = kFileSize * 100000;
uint64_t kWarmThreshold = 2000;
fifo_options_.max_table_files_size = kMaxSize;
fifo_options_.age_for_warm = kWarmThreshold;
mutable_cf_options_.compaction_options_fifo = fifo_options_;
mutable_cf_options_.level0_file_num_compaction_trigger = 2;
mutable_cf_options_.max_compaction_bytes = kFileSize * 100;
FIFOCompactionPicker fifo_compaction_picker(ioptions_, &icmp_);
int64_t current_time = 0;
ASSERT_OK(Env::Default()->GetCurrentTime(&current_time));
uint64_t threshold_time =
static_cast<uint64_t>(current_time) - kWarmThreshold;
Add(0, 6U, "240", "290", 2 * kFileSize, 0, 2900, 3000, 0, true,
Temperature::kUnknown, static_cast<uint64_t>(current_time) - 100);
Add(0, 5U, "240", "290", 2 * kFileSize, 0, 2700, 2800, 0, true,
Temperature::kUnknown, threshold_time + 100);
Add(0, 4U, "260", "300", 1 * kFileSize, 0, 2500, 2600, 0, true,
Temperature::kUnknown, threshold_time - 2000);
Add(0, 3U, "200", "300", 4 * kFileSize, 0, 2300, 2400, 0, true,
Temperature::kWarm, threshold_time - 3000);
Add(0, 2U, "200", "300", 4 * kFileSize, 0, 2100, 2200, 0, true,
Temperature::kUnknown, threshold_time - 4000);
Add(0, 1U, "200", "300", 4 * kFileSize, 0, 2000, 2100, 0, true,
Temperature::kWarm, threshold_time - 5000);
UpdateVersionStorageInfo();
ASSERT_EQ(fifo_compaction_picker.NeedsCompaction(vstorage_.get()), true);
std::unique_ptr<Compaction> compaction(fifo_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
// Stop if a file is being compacted
ASSERT_TRUE(compaction.get() != nullptr);
ASSERT_EQ(1U, compaction->num_input_files(0));
ASSERT_EQ(2U, compaction->input(0, 0)->fd.GetNumber());
}
#endif // ROCKSDB_LITE
TEST_F(CompactionPickerTest, CompactionPriMinOverlapping1) {
NewVersionStorage(6, kCompactionStyleLevel);
ioptions_.compaction_pri = kMinOverlappingRatio;
mutable_cf_options_.target_file_size_base = 100000000000;
mutable_cf_options_.target_file_size_multiplier = 10;
mutable_cf_options_.max_bytes_for_level_base = 10 * 1024 * 1024;
mutable_cf_options_.RefreshDerivedOptions(ioptions_);
Add(2, 6U, "150", "179", 50000000U);
Add(2, 7U, "180", "220", 50000000U);
Add(2, 8U, "321", "400", 50000000U); // File not overlapping
Add(2, 9U, "721", "800", 50000000U);
Add(3, 26U, "150", "170", 260000000U);
Add(3, 27U, "171", "179", 260000000U);
Add(3, 28U, "191", "220", 260000000U);
Add(3, 29U, "221", "300", 260000000U);
Add(3, 30U, "750", "900", 260000000U);
UpdateVersionStorageInfo();
std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction.get() != nullptr);
ASSERT_EQ(1U, compaction->num_input_files(0));
// Pick file 8 because it overlaps with 0 files on level 3.
ASSERT_EQ(8U, compaction->input(0, 0)->fd.GetNumber());
// Compaction input size * 1.1
ASSERT_GE(uint64_t{55000000}, compaction->OutputFilePreallocationSize());
}
TEST_F(CompactionPickerTest, CompactionPriMinOverlapping2) {
NewVersionStorage(6, kCompactionStyleLevel);
ioptions_.compaction_pri = kMinOverlappingRatio;
mutable_cf_options_.target_file_size_base = 10000000;
mutable_cf_options_.target_file_size_multiplier = 10;
mutable_cf_options_.max_bytes_for_level_base = 10 * 1024 * 1024;
Add(2, 6U, "150", "175",
60000000U); // Overlaps with file 26, 27, total size 521M
Add(2, 7U, "176", "200", 60000000U); // Overlaps with file 27, 28, total size
// 520M, the smallest overlapping
Add(2, 8U, "201", "300",
60000000U); // Overlaps with file 28, 29, total size 521M
Add(3, 25U, "100", "110", 261000000U);
Add(3, 26U, "150", "170", 261000000U);
Add(3, 27U, "171", "179", 260000000U);
Add(3, 28U, "191", "220", 260000000U);
Add(3, 29U, "221", "300", 261000000U);
Add(3, 30U, "321", "400", 261000000U);
UpdateVersionStorageInfo();
std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction.get() != nullptr);
ASSERT_EQ(1U, compaction->num_input_files(0));
// Picking file 7 because overlapping ratio is the biggest.
ASSERT_EQ(7U, compaction->input(0, 0)->fd.GetNumber());
}
TEST_F(CompactionPickerTest, CompactionPriMinOverlapping3) {
NewVersionStorage(6, kCompactionStyleLevel);
ioptions_.compaction_pri = kMinOverlappingRatio;
mutable_cf_options_.max_bytes_for_level_base = 10000000;
mutable_cf_options_.max_bytes_for_level_multiplier = 10;
// file 7 and 8 over lap with the same file, but file 8 is smaller so
// it will be picked.
Add(2, 6U, "150", "167", 60000000U); // Overlaps with file 26, 27
Add(2, 7U, "168", "169", 60000000U); // Overlaps with file 27
Add(2, 8U, "201", "300", 61000000U); // Overlaps with file 28, but the file
// itself is larger. Should be picked.
Add(3, 26U, "160", "165", 260000000U);
Add(3, 27U, "166", "170", 260000000U);
Add(3, 28U, "180", "400", 260000000U);
Add(3, 29U, "401", "500", 260000000U);
UpdateVersionStorageInfo();
std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction.get() != nullptr);
ASSERT_EQ(1U, compaction->num_input_files(0));
// Picking file 8 because overlapping ratio is the biggest.
ASSERT_EQ(8U, compaction->input(0, 0)->fd.GetNumber());
}
TEST_F(CompactionPickerTest, CompactionPriMinOverlapping4) {
NewVersionStorage(6, kCompactionStyleLevel);
ioptions_.compaction_pri = kMinOverlappingRatio;
mutable_cf_options_.max_bytes_for_level_base = 10000000;
mutable_cf_options_.max_bytes_for_level_multiplier = 10;
// file 7 and 8 over lap with the same file, but file 8 is smaller so
// it will be picked.
// Overlaps with file 26, 27. And the file is compensated so will be
// picked up.
Add(2, 6U, "150", "167", 60000000U, 0, 100, 100, 180000000U);
Add(2, 7U, "168", "169", 60000000U); // Overlaps with file 27
Add(2, 8U, "201", "300", 61000000U); // Overlaps with file 28
Add(3, 26U, "160", "165", 60000000U);
// Boosted file size in output level is not considered.
Add(3, 27U, "166", "170", 60000000U, 0, 100, 100, 260000000U);
Add(3, 28U, "180", "400", 60000000U);
Add(3, 29U, "401", "500", 60000000U);
UpdateVersionStorageInfo();
std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction.get() != nullptr);
ASSERT_EQ(1U, compaction->num_input_files(0));
// Picking file 8 because overlapping ratio is the biggest.
ASSERT_EQ(6U, compaction->input(0, 0)->fd.GetNumber());
}
// This test exhibits the bug where we don't properly reset parent_index in
// PickCompaction()
TEST_F(CompactionPickerTest, ParentIndexResetBug) {
int num_levels = ioptions_.num_levels;
mutable_cf_options_.level0_file_num_compaction_trigger = 2;
mutable_cf_options_.max_bytes_for_level_base = 200;
NewVersionStorage(num_levels, kCompactionStyleLevel);
Add(0, 1U, "150", "200"); // <- marked for compaction
Add(1, 3U, "400", "500", 600); // <- this one needs compacting
Add(2, 4U, "150", "200");
Add(2, 5U, "201", "210");
Add(2, 6U, "300", "310");
Add(2, 7U, "400", "500"); // <- being compacted
vstorage_->LevelFiles(2)[3]->being_compacted = true;
vstorage_->LevelFiles(0)[0]->marked_for_compaction = true;
UpdateVersionStorageInfo();
std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
}
// This test checks ExpandWhileOverlapping() by having overlapping user keys
// ranges (with different sequence numbers) in the input files.
TEST_F(CompactionPickerTest, OverlappingUserKeys) {
NewVersionStorage(6, kCompactionStyleLevel);
ioptions_.compaction_pri = kByCompensatedSize;
Add(1, 1U, "100", "150", 1U);
// Overlapping user keys
Add(1, 2U, "200", "400", 1U);
Add(1, 3U, "400", "500", 1000000000U, 0, 0);
Add(2, 4U, "600", "700", 1U);
UpdateVersionStorageInfo();
std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction.get() != nullptr);
ASSERT_EQ(1U, compaction->num_input_levels());
ASSERT_EQ(2U, compaction->num_input_files(0));
ASSERT_EQ(2U, compaction->input(0, 0)->fd.GetNumber());
ASSERT_EQ(3U, compaction->input(0, 1)->fd.GetNumber());
}
TEST_F(CompactionPickerTest, OverlappingUserKeys2) {
NewVersionStorage(6, kCompactionStyleLevel);
// Overlapping user keys on same level and output level
Add(1, 1U, "200", "400", 1000000000U);
Add(1, 2U, "400", "500", 1U, 0, 0);
Add(2, 3U, "000", "100", 1U);
Add(2, 4U, "100", "600", 1U, 0, 0);
Add(2, 5U, "600", "700", 1U, 0, 0);
UpdateVersionStorageInfo();
std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction.get() != nullptr);
ASSERT_EQ(2U, compaction->num_input_levels());
ASSERT_EQ(2U, compaction->num_input_files(0));
ASSERT_EQ(3U, compaction->num_input_files(1));
ASSERT_EQ(1U, compaction->input(0, 0)->fd.GetNumber());
ASSERT_EQ(2U, compaction->input(0, 1)->fd.GetNumber());
ASSERT_EQ(3U, compaction->input(1, 0)->fd.GetNumber());
ASSERT_EQ(4U, compaction->input(1, 1)->fd.GetNumber());
ASSERT_EQ(5U, compaction->input(1, 2)->fd.GetNumber());
}
TEST_F(CompactionPickerTest, OverlappingUserKeys3) {
NewVersionStorage(6, kCompactionStyleLevel);
// Chain of overlapping user key ranges (forces ExpandWhileOverlapping() to
// expand multiple times)
Add(1, 1U, "100", "150", 1U);
Add(1, 2U, "150", "200", 1U, 0, 0);
Add(1, 3U, "200", "250", 1000000000U, 0, 0);
Add(1, 4U, "250", "300", 1U, 0, 0);
Add(1, 5U, "300", "350", 1U, 0, 0);
// Output level overlaps with the beginning and the end of the chain
Add(2, 6U, "050", "100", 1U);
Add(2, 7U, "350", "400", 1U);
UpdateVersionStorageInfo();
std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction.get() != nullptr);
ASSERT_EQ(2U, compaction->num_input_levels());
ASSERT_EQ(5U, compaction->num_input_files(0));
ASSERT_EQ(2U, compaction->num_input_files(1));
ASSERT_EQ(1U, compaction->input(0, 0)->fd.GetNumber());
ASSERT_EQ(2U, compaction->input(0, 1)->fd.GetNumber());
ASSERT_EQ(3U, compaction->input(0, 2)->fd.GetNumber());
ASSERT_EQ(4U, compaction->input(0, 3)->fd.GetNumber());
ASSERT_EQ(5U, compaction->input(0, 4)->fd.GetNumber());
ASSERT_EQ(6U, compaction->input(1, 0)->fd.GetNumber());
ASSERT_EQ(7U, compaction->input(1, 1)->fd.GetNumber());
}
TEST_F(CompactionPickerTest, OverlappingUserKeys4) {
NewVersionStorage(6, kCompactionStyleLevel);
mutable_cf_options_.max_bytes_for_level_base = 1000000;
Add(1, 1U, "100", "150", 1U);
Add(1, 2U, "150", "199", 1U, 0, 0);
Add(1, 3U, "200", "250", 1100000U, 0, 0);
Add(1, 4U, "251", "300", 1U, 0, 0);
Add(1, 5U, "300", "350", 1U, 0, 0);
Add(2, 6U, "100", "115", 1U);
Add(2, 7U, "125", "325", 1U);
Add(2, 8U, "350", "400", 1U);
UpdateVersionStorageInfo();
std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction.get() != nullptr);
ASSERT_EQ(2U, compaction->num_input_levels());
ASSERT_EQ(1U, compaction->num_input_files(0));
ASSERT_EQ(1U, compaction->num_input_files(1));
ASSERT_EQ(3U, compaction->input(0, 0)->fd.GetNumber());
ASSERT_EQ(7U, compaction->input(1, 0)->fd.GetNumber());
}
TEST_F(CompactionPickerTest, OverlappingUserKeys5) {
NewVersionStorage(6, kCompactionStyleLevel);
// Overlapping user keys on same level and output level
Add(1, 1U, "200", "400", 1000000000U);
Add(1, 2U, "400", "500", 1U, 0, 0);
Add(2, 3U, "000", "100", 1U);
Add(2, 4U, "100", "600", 1U, 0, 0);
Add(2, 5U, "600", "700", 1U, 0, 0);
vstorage_->LevelFiles(2)[2]->being_compacted = true;
UpdateVersionStorageInfo();
std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction.get() == nullptr);
}
TEST_F(CompactionPickerTest, OverlappingUserKeys6) {
NewVersionStorage(6, kCompactionStyleLevel);
// Overlapping user keys on same level and output level
Add(1, 1U, "200", "400", 1U, 0, 0);
Add(1, 2U, "401", "500", 1U, 0, 0);
Add(2, 3U, "000", "100", 1U);
Add(2, 4U, "100", "300", 1U, 0, 0);
Add(2, 5U, "305", "450", 1U, 0, 0);
Add(2, 6U, "460", "600", 1U, 0, 0);
Add(2, 7U, "600", "700", 1U, 0, 0);
vstorage_->LevelFiles(1)[0]->marked_for_compaction = true;
vstorage_->LevelFiles(1)[1]->marked_for_compaction = true;
UpdateVersionStorageInfo();
std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction.get() != nullptr);
ASSERT_EQ(2U, compaction->num_input_levels());
ASSERT_EQ(1U, compaction->num_input_files(0));
ASSERT_EQ(3U, compaction->num_input_files(1));
}
TEST_F(CompactionPickerTest, OverlappingUserKeys7) {
NewVersionStorage(6, kCompactionStyleLevel);
mutable_cf_options_.max_compaction_bytes = 100000000000u;
// Overlapping user keys on same level and output level
Add(1, 1U, "200", "400", 1U, 0, 0);
Add(1, 2U, "401", "500", 1000000000U, 0, 0);
Add(2, 3U, "100", "250", 1U);
Add(2, 4U, "300", "600", 1U, 0, 0);
Add(2, 5U, "600", "800", 1U, 0, 0);
UpdateVersionStorageInfo();
std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction.get() != nullptr);
ASSERT_EQ(2U, compaction->num_input_levels());
ASSERT_GE(1U, compaction->num_input_files(0));
ASSERT_GE(2U, compaction->num_input_files(1));
// File 5 has to be included in the compaction
ASSERT_EQ(5U, compaction->inputs(1)->back()->fd.GetNumber());
}
TEST_F(CompactionPickerTest, OverlappingUserKeys8) {
NewVersionStorage(6, kCompactionStyleLevel);
mutable_cf_options_.max_compaction_bytes = 100000000000u;
// grow the number of inputs in "level" without
// changing the number of "level+1" files we pick up
// Expand input level as much as possible
// no overlapping case
Add(1, 1U, "101", "150", 1U);
Add(1, 2U, "151", "200", 1U);
Add(1, 3U, "201", "300", 1000000000U);
Add(1, 4U, "301", "400", 1U);
Add(1, 5U, "401", "500", 1U);
Add(2, 6U, "150", "200", 1U);
Add(2, 7U, "200", "450", 1U, 0, 0);
Add(2, 8U, "500", "600", 1U);
UpdateVersionStorageInfo();
std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction.get() != nullptr);
ASSERT_EQ(2U, compaction->num_input_levels());
ASSERT_EQ(3U, compaction->num_input_files(0));
ASSERT_EQ(2U, compaction->num_input_files(1));
ASSERT_EQ(2U, compaction->input(0, 0)->fd.GetNumber());
ASSERT_EQ(3U, compaction->input(0, 1)->fd.GetNumber());
ASSERT_EQ(4U, compaction->input(0, 2)->fd.GetNumber());
ASSERT_EQ(6U, compaction->input(1, 0)->fd.GetNumber());
ASSERT_EQ(7U, compaction->input(1, 1)->fd.GetNumber());
}
TEST_F(CompactionPickerTest, OverlappingUserKeys9) {
NewVersionStorage(6, kCompactionStyleLevel);
mutable_cf_options_.max_compaction_bytes = 100000000000u;
// grow the number of inputs in "level" without
// changing the number of "level+1" files we pick up
// Expand input level as much as possible
// overlapping case
Add(1, 1U, "121", "150", 1U);
Add(1, 2U, "151", "200", 1U);
Add(1, 3U, "201", "300", 1000000000U);
Add(1, 4U, "301", "400", 1U);
Add(1, 5U, "401", "500", 1U);
Add(2, 6U, "100", "120", 1U);
Add(2, 7U, "150", "200", 1U);
Add(2, 8U, "200", "450", 1U, 0, 0);
Add(2, 9U, "501", "600", 1U);
UpdateVersionStorageInfo();
std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction.get() != nullptr);
ASSERT_EQ(2U, compaction->num_input_levels());
ASSERT_EQ(5U, compaction->num_input_files(0));
ASSERT_EQ(2U, compaction->num_input_files(1));
ASSERT_EQ(1U, compaction->input(0, 0)->fd.GetNumber());
ASSERT_EQ(2U, compaction->input(0, 1)->fd.GetNumber());
ASSERT_EQ(3U, compaction->input(0, 2)->fd.GetNumber());
ASSERT_EQ(4U, compaction->input(0, 3)->fd.GetNumber());
ASSERT_EQ(7U, compaction->input(1, 0)->fd.GetNumber());
ASSERT_EQ(8U, compaction->input(1, 1)->fd.GetNumber());
}
TEST_F(CompactionPickerTest, OverlappingUserKeys10) {
// Locked file encountered when pulling in extra input-level files with same
// user keys. Verify we pick the next-best file from the same input level.
NewVersionStorage(6, kCompactionStyleLevel);
mutable_cf_options_.max_compaction_bytes = 100000000000u;
// file_number 2U is largest and thus first choice. But it overlaps with
// file_number 1U which is being compacted. So instead we pick the next-
// biggest file, 3U, which is eligible for compaction.
Add(1 /* level */, 1U /* file_number */, "100" /* smallest */,
"150" /* largest */, 1U /* file_size */);
file_map_[1U].first->being_compacted = true;
Add(1 /* level */, 2U /* file_number */, "150" /* smallest */,
"200" /* largest */, 1000000000U /* file_size */, 0 /* smallest_seq */,
0 /* largest_seq */);
Add(1 /* level */, 3U /* file_number */, "201" /* smallest */,
"250" /* largest */, 900000000U /* file_size */);
Add(2 /* level */, 4U /* file_number */, "100" /* smallest */,
"150" /* largest */, 1U /* file_size */);
Add(2 /* level */, 5U /* file_number */, "151" /* smallest */,
"200" /* largest */, 1U /* file_size */);
Add(2 /* level */, 6U /* file_number */, "201" /* smallest */,
"250" /* largest */, 1U /* file_size */);
UpdateVersionStorageInfo();
std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction.get() != nullptr);
ASSERT_EQ(2U, compaction->num_input_levels());
ASSERT_EQ(1U, compaction->num_input_files(0));
ASSERT_EQ(1U, compaction->num_input_files(1));
ASSERT_EQ(3U, compaction->input(0, 0)->fd.GetNumber());
ASSERT_EQ(6U, compaction->input(1, 0)->fd.GetNumber());
}
TEST_F(CompactionPickerTest, OverlappingUserKeys11) {
// Locked file encountered when pulling in extra output-level files with same
// user keys. Expected to skip that compaction and pick the next-best choice.
NewVersionStorage(6, kCompactionStyleLevel);
mutable_cf_options_.max_compaction_bytes = 100000000000u;
// score(L1) = 3.7
// score(L2) = 1.85
// There is no eligible file in L1 to compact since both candidates pull in
// file_number 5U, which overlaps with a file pending compaction (6U). The
// first eligible compaction is from L2->L3.
Add(1 /* level */, 2U /* file_number */, "151" /* smallest */,
"200" /* largest */, 1000000000U /* file_size */);
Add(1 /* level */, 3U /* file_number */, "201" /* smallest */,
"250" /* largest */, 1U /* file_size */);
Add(2 /* level */, 4U /* file_number */, "100" /* smallest */,
"149" /* largest */, 5000000000U /* file_size */);
Add(2 /* level */, 5U /* file_number */, "150" /* smallest */,
"201" /* largest */, 1U /* file_size */);
Add(2 /* level */, 6U /* file_number */, "201" /* smallest */,
"249" /* largest */, 1U /* file_size */, 0 /* smallest_seq */,
0 /* largest_seq */);
file_map_[6U].first->being_compacted = true;
Add(3 /* level */, 7U /* file_number */, "100" /* smallest */,
"149" /* largest */, 1U /* file_size */);
UpdateVersionStorageInfo();
std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction.get() != nullptr);
ASSERT_EQ(2U, compaction->num_input_levels());
ASSERT_EQ(1U, compaction->num_input_files(0));
ASSERT_EQ(1U, compaction->num_input_files(1));
ASSERT_EQ(4U, compaction->input(0, 0)->fd.GetNumber());
ASSERT_EQ(7U, compaction->input(1, 0)->fd.GetNumber());
}
TEST_F(CompactionPickerTest, FileTtlBooster) {
// Set TTL to 2048
// TTL boosting for all levels starts at 1024,
// Whole TTL range is 2048 * 31 / 32 - 1024 = 1984 - 1024 = 960.
// From second last level (L5), range starts at
// 1024 + 480, 1024 + 240, 1024 + 120 (which is L3).
// Boosting step 124 / 16 = 7.75 -> 7
//
const uint64_t kCurrentTime = 1000000;
FileMetaData meta;
{
FileTtlBooster booster(kCurrentTime, 2048, 7, 3);
// Not triggering if the file is younger than ttl/2
meta.oldest_ancester_time = kCurrentTime - 1023;
ASSERT_EQ(1, booster.GetBoostScore(&meta));
meta.oldest_ancester_time = kCurrentTime - 1024;
ASSERT_EQ(1, booster.GetBoostScore(&meta));
meta.oldest_ancester_time = kCurrentTime + 10;
ASSERT_EQ(1, booster.GetBoostScore(&meta));
// Within one boosting step
meta.oldest_ancester_time = kCurrentTime - (1024 + 120 + 6);
ASSERT_EQ(1, booster.GetBoostScore(&meta));
// One boosting step
meta.oldest_ancester_time = kCurrentTime - (1024 + 120 + 7);
ASSERT_EQ(2, booster.GetBoostScore(&meta));
meta.oldest_ancester_time = kCurrentTime - (1024 + 120 + 8);
ASSERT_EQ(2, booster.GetBoostScore(&meta));
// Multiple boosting steps
meta.oldest_ancester_time = kCurrentTime - (1024 + 120 + 30);
ASSERT_EQ(5, booster.GetBoostScore(&meta));
// Very high boosting steps
meta.oldest_ancester_time = kCurrentTime - (1024 + 120 + 700);
ASSERT_EQ(101, booster.GetBoostScore(&meta));
}
{
// Test second last level
FileTtlBooster booster(kCurrentTime, 2048, 7, 5);
meta.oldest_ancester_time = kCurrentTime - (1024 + 480);
ASSERT_EQ(1, booster.GetBoostScore(&meta));
meta.oldest_ancester_time = kCurrentTime - (1024 + 480 + 60);
ASSERT_EQ(3, booster.GetBoostScore(&meta));
}
{
// Test last level
FileTtlBooster booster(kCurrentTime, 2048, 7, 6);
meta.oldest_ancester_time = kCurrentTime - (1024 + 480);
ASSERT_EQ(1, booster.GetBoostScore(&meta));
meta.oldest_ancester_time = kCurrentTime - (1024 + 480 + 60);
ASSERT_EQ(1, booster.GetBoostScore(&meta));
meta.oldest_ancester_time = kCurrentTime - 3000;
ASSERT_EQ(1, booster.GetBoostScore(&meta));
}
}
TEST_F(CompactionPickerTest, NotScheduleL1IfL0WithHigherPri1) {
NewVersionStorage(6, kCompactionStyleLevel);
mutable_cf_options_.level0_file_num_compaction_trigger = 2;
mutable_cf_options_.max_bytes_for_level_base = 900000000U;
// 6 L0 files, score 3.
Add(0, 1U, "000", "400", 1U);
Add(0, 2U, "001", "400", 1U, 0, 0);
Add(0, 3U, "001", "400", 1000000000U, 0, 0);
Add(0, 31U, "001", "400", 1000000000U, 0, 0);
Add(0, 32U, "001", "400", 1000000000U, 0, 0);
Add(0, 33U, "001", "400", 1000000000U, 0, 0);
// L1 total size 2GB, score 2.2. If one file being compacted, score 1.1.
Add(1, 4U, "050", "300", 1000000000U, 0, 0);
file_map_[4u].first->being_compacted = true;
Add(1, 5U, "301", "350", 1000000000U, 0, 0);
// Output level overlaps with the beginning and the end of the chain
Add(2, 6U, "050", "100", 1U);
Add(2, 7U, "300", "400", 1U);
// No compaction should be scheduled, if L0 has higher priority than L1
// but L0->L1 compaction is blocked by a file in L1 being compacted.
UpdateVersionStorageInfo();
ASSERT_EQ(0, vstorage_->CompactionScoreLevel(0));
ASSERT_EQ(1, vstorage_->CompactionScoreLevel(1));
std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction.get() == nullptr);
}
TEST_F(CompactionPickerTest, NotScheduleL1IfL0WithHigherPri2) {
NewVersionStorage(6, kCompactionStyleLevel);
mutable_cf_options_.level0_file_num_compaction_trigger = 2;
mutable_cf_options_.max_bytes_for_level_base = 900000000U;
// 6 L0 files, score 3.
Add(0, 1U, "000", "400", 1U);
Add(0, 2U, "001", "400", 1U, 0, 0);
Add(0, 3U, "001", "400", 1000000000U, 0, 0);
Add(0, 31U, "001", "400", 1000000000U, 0, 0);
Add(0, 32U, "001", "400", 1000000000U, 0, 0);
Add(0, 33U, "001", "400", 1000000000U, 0, 0);
// L1 total size 2GB, score 2.2. If one file being compacted, score 1.1.
Add(1, 4U, "050", "300", 1000000000U, 0, 0);
Add(1, 5U, "301", "350", 1000000000U, 0, 0);
// Output level overlaps with the beginning and the end of the chain
Add(2, 6U, "050", "100", 1U);
Add(2, 7U, "300", "400", 1U);
// If no file in L1 being compacted, L0->L1 compaction will be scheduled.
UpdateVersionStorageInfo(); // being_compacted flag is cleared here.
ASSERT_EQ(0, vstorage_->CompactionScoreLevel(0));
ASSERT_EQ(1, vstorage_->CompactionScoreLevel(1));
std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction.get() != nullptr);
}
TEST_F(CompactionPickerTest, NotScheduleL1IfL0WithHigherPri3) {
NewVersionStorage(6, kCompactionStyleLevel);
mutable_cf_options_.level0_file_num_compaction_trigger = 2;
mutable_cf_options_.max_bytes_for_level_base = 900000000U;
// 6 L0 files, score 3.
Add(0, 1U, "000", "400", 1U);
Add(0, 2U, "001", "400", 1U, 0, 0);
Add(0, 3U, "001", "400", 1000000000U, 0, 0);
Add(0, 31U, "001", "400", 1000000000U, 0, 0);
Add(0, 32U, "001", "400", 1000000000U, 0, 0);
Add(0, 33U, "001", "400", 1000000000U, 0, 0);
// L1 score more than 6.
Add(1, 4U, "050", "300", 1000000000U, 0, 0);
file_map_[4u].first->being_compacted = true;
Add(1, 5U, "301", "350", 1000000000U, 0, 0);
Add(1, 51U, "351", "400", 6000000000U, 0, 0);
// Output level overlaps with the beginning and the end of the chain
Add(2, 6U, "050", "100", 1U);
Add(2, 7U, "300", "400", 1U);
// If score in L1 is larger than L0, L1 compaction goes through despite
// there is pending L0 compaction.
UpdateVersionStorageInfo();
ASSERT_EQ(1, vstorage_->CompactionScoreLevel(0));
ASSERT_EQ(0, vstorage_->CompactionScoreLevel(1));
std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction.get() != nullptr);
}
TEST_F(CompactionPickerTest, EstimateCompactionBytesNeeded1) {
int num_levels = ioptions_.num_levels;
ioptions_.level_compaction_dynamic_level_bytes = false;
mutable_cf_options_.level0_file_num_compaction_trigger = 4;
mutable_cf_options_.max_bytes_for_level_base = 1000;
mutable_cf_options_.max_bytes_for_level_multiplier = 10;
NewVersionStorage(num_levels, kCompactionStyleLevel);
Add(0, 1U, "150", "200", 200);
Add(0, 2U, "150", "200", 200);
Add(0, 3U, "150", "200", 200);
// Level 1 is over target by 200
Add(1, 4U, "400", "500", 600);
Add(1, 5U, "600", "700", 600);
// Level 2 is less than target 10000 even added size of level 1
// Size ratio of L2/L1 is 9600 / 1200 = 8
Add(2, 6U, "150", "200", 2500);
Add(2, 7U, "201", "210", 2000);
Add(2, 8U, "300", "310", 2600);
Add(2, 9U, "400", "500", 2500);
// Level 3 exceeds target 100,000 of 1000
Add(3, 10U, "400", "500", 101000);
// Level 4 exceeds target 1,000,000 by 900 after adding size from level 3
// Size ratio L4/L3 is 9.9
// After merge from L3, L4 size is 1000900
Add(4, 11U, "400", "500", 999900);
Add(5, 12U, "400", "500", 8007200);
UpdateVersionStorageInfo();
ASSERT_EQ(200u * 9u + 10900u + 900u * 9,
vstorage_->estimated_compaction_needed_bytes());
}
TEST_F(CompactionPickerTest, EstimateCompactionBytesNeeded2) {
int num_levels = ioptions_.num_levels;
ioptions_.level_compaction_dynamic_level_bytes = false;
mutable_cf_options_.level0_file_num_compaction_trigger = 3;
mutable_cf_options_.max_bytes_for_level_base = 1000;
mutable_cf_options_.max_bytes_for_level_multiplier = 10;
NewVersionStorage(num_levels, kCompactionStyleLevel);
Add(0, 1U, "150", "200", 200);
Add(0, 2U, "150", "200", 200);
Add(0, 4U, "150", "200", 200);
Add(0, 5U, "150", "200", 200);
Add(0, 6U, "150", "200", 200);
// Level 1 size will be 1400 after merging with L0
Add(1, 7U, "400", "500", 200);
Add(1, 8U, "600", "700", 200);
// Level 2 is less than target 10000 even added size of level 1
Add(2, 9U, "150", "200", 9100);
// Level 3 over the target, but since level 4 is empty, we assume it will be
// a trivial move.
Add(3, 10U, "400", "500", 101000);
UpdateVersionStorageInfo();
// estimated L1->L2 merge: 400 * (9100.0 / 1400.0 + 1.0)
ASSERT_EQ(1400u + 3000u, vstorage_->estimated_compaction_needed_bytes());
}
TEST_F(CompactionPickerTest, EstimateCompactionBytesNeeded3) {
int num_levels = ioptions_.num_levels;
ioptions_.level_compaction_dynamic_level_bytes = false;
mutable_cf_options_.level0_file_num_compaction_trigger = 3;
mutable_cf_options_.max_bytes_for_level_base = 1000;
mutable_cf_options_.max_bytes_for_level_multiplier = 10;
NewVersionStorage(num_levels, kCompactionStyleLevel);
Add(0, 1U, "150", "200", 2000);
Add(0, 2U, "150", "200", 2000);
Add(0, 4U, "150", "200", 2000);
Add(0, 5U, "150", "200", 2000);
Add(0, 6U, "150", "200", 1000);
// Level 1 size will be 10000 after merging with L0
Add(1, 7U, "400", "500", 500);
Add(1, 8U, "600", "700", 500);
Add(2, 9U, "150", "200", 10000);
UpdateVersionStorageInfo();
ASSERT_EQ(10000u + 18000u, vstorage_->estimated_compaction_needed_bytes());
}
TEST_F(CompactionPickerTest, EstimateCompactionBytesNeededDynamicLevel) {
int num_levels = ioptions_.num_levels;
ioptions_.level_compaction_dynamic_level_bytes = true;
mutable_cf_options_.level0_file_num_compaction_trigger = 3;
mutable_cf_options_.max_bytes_for_level_base = 1000;
mutable_cf_options_.max_bytes_for_level_multiplier = 10;
NewVersionStorage(num_levels, kCompactionStyleLevel);
// Set Last level size 50000
// num_levels - 1 target 5000
// num_levels - 2 is base level with target 1000 (rounded up to
// max_bytes_for_level_base).
Add(num_levels - 1, 10U, "400", "500", 50000);
Add(0, 1U, "150", "200", 200);
Add(0, 2U, "150", "200", 200);
Add(0, 4U, "150", "200", 200);
Add(0, 5U, "150", "200", 200);
Add(0, 6U, "150", "200", 200);
// num_levels - 3 is over target by 100 + 1000
Add(num_levels - 3, 7U, "400", "500", 550);
Add(num_levels - 3, 8U, "600", "700", 550);
// num_levels - 2 is over target by 1100 + 200
Add(num_levels - 2, 9U, "150", "200", 5200);
UpdateVersionStorageInfo();
// Merging to the second last level: (5200 / 2100 + 1) * 1100
// Merging to the last level: (50000 / 6300 + 1) * 1300
ASSERT_EQ(2100u + 3823u + 11617u,
vstorage_->estimated_compaction_needed_bytes());
}
TEST_F(CompactionPickerTest, IsBottommostLevelTest) {
// case 1: Higher levels are empty
NewVersionStorage(6, kCompactionStyleLevel);
Add(0, 1U, "a", "m");
Add(0, 2U, "c", "z");
Add(1, 3U, "d", "e");
Add(1, 4U, "l", "p");
Add(2, 5U, "g", "i");
Add(2, 6U, "x", "z");
UpdateVersionStorageInfo();
SetCompactionInputFilesLevels(2, 1);
AddToCompactionFiles(3U);
AddToCompactionFiles(5U);
bool result =
Compaction::TEST_IsBottommostLevel(2, vstorage_.get(), input_files_);
ASSERT_TRUE(result);
// case 2: Higher levels have no overlap
NewVersionStorage(6, kCompactionStyleLevel);
Add(0, 1U, "a", "m");
Add(0, 2U, "c", "z");
Add(1, 3U, "d", "e");
Add(1, 4U, "l", "p");
Add(2, 5U, "g", "i");
Add(2, 6U, "x", "z");
Add(3, 7U, "k", "p");
Add(3, 8U, "t", "w");
Add(4, 9U, "a", "b");
Add(5, 10U, "c", "cc");
UpdateVersionStorageInfo();
SetCompactionInputFilesLevels(2, 1);
AddToCompactionFiles(3U);
AddToCompactionFiles(5U);
result = Compaction::TEST_IsBottommostLevel(2, vstorage_.get(), input_files_);
ASSERT_TRUE(result);
// case 3.1: Higher levels (level 3) have overlap
NewVersionStorage(6, kCompactionStyleLevel);
Add(0, 1U, "a", "m");
Add(0, 2U, "c", "z");
Add(1, 3U, "d", "e");
Add(1, 4U, "l", "p");
Add(2, 5U, "g", "i");
Add(2, 6U, "x", "z");
Add(3, 7U, "e", "g");
Add(3, 8U, "h", "k");
Add(4, 9U, "a", "b");
Add(5, 10U, "c", "cc");
UpdateVersionStorageInfo();
SetCompactionInputFilesLevels(2, 1);
AddToCompactionFiles(3U);
AddToCompactionFiles(5U);
result = Compaction::TEST_IsBottommostLevel(2, vstorage_.get(), input_files_);
ASSERT_FALSE(result);
// case 3.2: Higher levels (level 5) have overlap
DeleteVersionStorage();
NewVersionStorage(6, kCompactionStyleLevel);
Add(0, 1U, "a", "m");
Add(0, 2U, "c", "z");
Add(1, 3U, "d", "e");
Add(1, 4U, "l", "p");
Add(2, 5U, "g", "i");
Add(2, 6U, "x", "z");
Add(3, 7U, "j", "k");
Add(3, 8U, "l", "m");
Add(4, 9U, "a", "b");
Add(5, 10U, "c", "cc");
Add(5, 11U, "h", "k");
Add(5, 12U, "y", "yy");
Add(5, 13U, "z", "zz");
UpdateVersionStorageInfo();
SetCompactionInputFilesLevels(2, 1);
AddToCompactionFiles(3U);
AddToCompactionFiles(5U);
result = Compaction::TEST_IsBottommostLevel(2, vstorage_.get(), input_files_);
ASSERT_FALSE(result);
// case 3.3: Higher levels (level 5) have overlap, but it's only overlapping
// one key ("d")
NewVersionStorage(6, kCompactionStyleLevel);
Add(0, 1U, "a", "m");
Add(0, 2U, "c", "z");
Add(1, 3U, "d", "e");
Add(1, 4U, "l", "p");
Add(2, 5U, "g", "i");
Add(2, 6U, "x", "z");
Add(3, 7U, "j", "k");
Add(3, 8U, "l", "m");
Add(4, 9U, "a", "b");
Add(5, 10U, "c", "cc");
Add(5, 11U, "ccc", "d");
Add(5, 12U, "y", "yy");
Add(5, 13U, "z", "zz");
UpdateVersionStorageInfo();
SetCompactionInputFilesLevels(2, 1);
AddToCompactionFiles(3U);
AddToCompactionFiles(5U);
result = Compaction::TEST_IsBottommostLevel(2, vstorage_.get(), input_files_);
ASSERT_FALSE(result);
// Level 0 files overlap
NewVersionStorage(6, kCompactionStyleLevel);
Add(0, 1U, "s", "t");
Add(0, 2U, "a", "m");
Add(0, 3U, "b", "z");
Add(0, 4U, "e", "f");
Add(5, 10U, "y", "z");
UpdateVersionStorageInfo();
SetCompactionInputFilesLevels(1, 0);
AddToCompactionFiles(1U);
AddToCompactionFiles(2U);
AddToCompactionFiles(3U);
AddToCompactionFiles(4U);
result = Compaction::TEST_IsBottommostLevel(2, vstorage_.get(), input_files_);
ASSERT_FALSE(result);
// Level 0 files don't overlap
NewVersionStorage(6, kCompactionStyleLevel);
Add(0, 1U, "s", "t");
Add(0, 2U, "a", "m");
Add(0, 3U, "b", "k");
Add(0, 4U, "e", "f");
Add(5, 10U, "y", "z");
UpdateVersionStorageInfo();
SetCompactionInputFilesLevels(1, 0);
AddToCompactionFiles(1U);
AddToCompactionFiles(2U);
AddToCompactionFiles(3U);
AddToCompactionFiles(4U);
result = Compaction::TEST_IsBottommostLevel(2, vstorage_.get(), input_files_);
ASSERT_TRUE(result);
// Level 1 files overlap
NewVersionStorage(6, kCompactionStyleLevel);
Add(0, 1U, "s", "t");
Add(0, 2U, "a", "m");
Add(0, 3U, "b", "k");
Add(0, 4U, "e", "f");
Add(1, 5U, "a", "m");
Add(1, 6U, "n", "o");
Add(1, 7U, "w", "y");
Add(5, 10U, "y", "z");
UpdateVersionStorageInfo();
SetCompactionInputFilesLevels(2, 0);
AddToCompactionFiles(1U);
AddToCompactionFiles(2U);
AddToCompactionFiles(3U);
AddToCompactionFiles(4U);
AddToCompactionFiles(5U);
AddToCompactionFiles(6U);
AddToCompactionFiles(7U);
result = Compaction::TEST_IsBottommostLevel(2, vstorage_.get(), input_files_);
ASSERT_FALSE(result);
DeleteVersionStorage();
}
TEST_F(CompactionPickerTest, MaxCompactionBytesHit) {
mutable_cf_options_.max_bytes_for_level_base = 1000000u;
mutable_cf_options_.max_compaction_bytes = 800000u;
ioptions_.level_compaction_dynamic_level_bytes = false;
NewVersionStorage(6, kCompactionStyleLevel);
// A compaction should be triggered and pick file 2 and 5.
// It can expand because adding file 1 and 3, the compaction size will
// exceed mutable_cf_options_.max_bytes_for_level_base.
Add(1, 1U, "100", "150", 300000U);
Add(1, 2U, "151", "200", 300001U, 0, 0);
Add(1, 3U, "201", "250", 300000U, 0, 0);
Add(1, 4U, "251", "300", 300000U, 0, 0);
Add(2, 5U, "100", "256", 1U);
UpdateVersionStorageInfo();
std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction.get() != nullptr);
ASSERT_EQ(2U, compaction->num_input_levels());
ASSERT_EQ(1U, compaction->num_input_files(0));
ASSERT_EQ(1U, compaction->num_input_files(1));
ASSERT_EQ(2U, compaction->input(0, 0)->fd.GetNumber());
ASSERT_EQ(5U, compaction->input(1, 0)->fd.GetNumber());
}
TEST_F(CompactionPickerTest, MaxCompactionBytesNotHit) {
mutable_cf_options_.max_bytes_for_level_base = 800000u;
mutable_cf_options_.max_compaction_bytes = 1000000u;
ioptions_.level_compaction_dynamic_level_bytes = false;
NewVersionStorage(6, kCompactionStyleLevel);
// A compaction should be triggered and pick file 2 and 5.
// and it expands to file 1 and 3 too.
Add(1, 1U, "100", "150", 300000U);
Add(1, 2U, "151", "200", 300001U, 0, 0);
Add(1, 3U, "201", "250", 300000U, 0, 0);
Add(1, 4U, "251", "300", 300000U, 0, 0);
Add(2, 5U, "000", "251", 1U);
UpdateVersionStorageInfo();
std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction.get() != nullptr);
ASSERT_EQ(2U, compaction->num_input_levels());
ASSERT_EQ(3U, compaction->num_input_files(0));
ASSERT_EQ(1U, compaction->num_input_files(1));
ASSERT_EQ(1U, compaction->input(0, 0)->fd.GetNumber());
ASSERT_EQ(2U, compaction->input(0, 1)->fd.GetNumber());
ASSERT_EQ(3U, compaction->input(0, 2)->fd.GetNumber());
ASSERT_EQ(5U, compaction->input(1, 0)->fd.GetNumber());
}
TEST_F(CompactionPickerTest, IsTrivialMoveOn) {
mutable_cf_options_.max_bytes_for_level_base = 10000u;
mutable_cf_options_.max_compaction_bytes = 10001u;
ioptions_.level_compaction_dynamic_level_bytes = false;
NewVersionStorage(6, kCompactionStyleLevel);
// A compaction should be triggered and pick file 2
Add(1, 1U, "100", "150", 3000U);
Add(1, 2U, "151", "200", 3001U);
Add(1, 3U, "201", "250", 3000U);
Add(1, 4U, "251", "300", 3000U);
Add(3, 5U, "120", "130", 7000U);
Add(3, 6U, "170", "180", 7000U);
Add(3, 7U, "220", "230", 7000U);
Add(3, 8U, "270", "280", 7000U);
UpdateVersionStorageInfo();
std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction.get() != nullptr);
ASSERT_TRUE(compaction->IsTrivialMove());
}
TEST_F(CompactionPickerTest, IsTrivialMoveOffSstPartitioned) {
mutable_cf_options_.max_bytes_for_level_base = 10000u;
mutable_cf_options_.max_compaction_bytes = 10001u;
ioptions_.level_compaction_dynamic_level_bytes = false;
ioptions_.sst_partitioner_factory = NewSstPartitionerFixedPrefixFactory(1);
NewVersionStorage(6, kCompactionStyleLevel);
// A compaction should be triggered and pick file 2
Add(1, 1U, "100", "150", 3000U);
Add(1, 2U, "151", "200", 3001U);
Add(1, 3U, "201", "250", 3000U);
Add(1, 4U, "251", "300", 3000U);
Add(3, 5U, "120", "130", 7000U);
Add(3, 6U, "170", "180", 7000U);
Add(3, 7U, "220", "230", 7000U);
Add(3, 8U, "270", "280", 7000U);
UpdateVersionStorageInfo();
std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction.get() != nullptr);
// No trivial move, because partitioning is applied
ASSERT_TRUE(!compaction->IsTrivialMove());
}
TEST_F(CompactionPickerTest, IsTrivialMoveOff) {
mutable_cf_options_.max_bytes_for_level_base = 1000000u;
mutable_cf_options_.max_compaction_bytes = 10000u;
ioptions_.level_compaction_dynamic_level_bytes = false;
NewVersionStorage(6, kCompactionStyleLevel);
// A compaction should be triggered and pick all files from level 1
Add(1, 1U, "100", "150", 300000U, 0, 0);
Add(1, 2U, "150", "200", 300000U, 0, 0);
Add(1, 3U, "200", "250", 300000U, 0, 0);
Add(1, 4U, "250", "300", 300000U, 0, 0);
Add(3, 5U, "120", "130", 6000U);
Add(3, 6U, "140", "150", 6000U);
UpdateVersionStorageInfo();
std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction.get() != nullptr);
ASSERT_FALSE(compaction->IsTrivialMove());
}
TEST_F(CompactionPickerTest, CacheNextCompactionIndex) {
NewVersionStorage(6, kCompactionStyleLevel);
mutable_cf_options_.max_compaction_bytes = 100000000000u;
Add(1 /* level */, 1U /* file_number */, "100" /* smallest */,
"149" /* largest */, 1000000000U /* file_size */);
file_map_[1U].first->being_compacted = true;
Add(1 /* level */, 2U /* file_number */, "150" /* smallest */,
"199" /* largest */, 900000000U /* file_size */);
Add(1 /* level */, 3U /* file_number */, "200" /* smallest */,
"249" /* largest */, 800000000U /* file_size */);
Add(1 /* level */, 4U /* file_number */, "250" /* smallest */,
"299" /* largest */, 700000000U /* file_size */);
Add(2 /* level */, 5U /* file_number */, "150" /* smallest */,
"199" /* largest */, 1U /* file_size */);
file_map_[5U].first->being_compacted = true;
UpdateVersionStorageInfo();
std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction.get() != nullptr);
ASSERT_EQ(1U, compaction->num_input_levels());
ASSERT_EQ(1U, compaction->num_input_files(0));
ASSERT_EQ(0U, compaction->num_input_files(1));
ASSERT_EQ(3U, compaction->input(0, 0)->fd.GetNumber());
ASSERT_EQ(2, vstorage_->NextCompactionIndex(1 /* level */));
compaction.reset(level_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction.get() != nullptr);
ASSERT_EQ(1U, compaction->num_input_levels());
ASSERT_EQ(1U, compaction->num_input_files(0));
ASSERT_EQ(0U, compaction->num_input_files(1));
ASSERT_EQ(4U, compaction->input(0, 0)->fd.GetNumber());
ASSERT_EQ(3, vstorage_->NextCompactionIndex(1 /* level */));
compaction.reset(level_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction.get() == nullptr);
ASSERT_EQ(4, vstorage_->NextCompactionIndex(1 /* level */));
}
TEST_F(CompactionPickerTest, IntraL0MaxCompactionBytesNotHit) {
// Intra L0 compaction triggers only if there are at least
// level0_file_num_compaction_trigger + 2 L0 files.
mutable_cf_options_.level0_file_num_compaction_trigger = 3;
mutable_cf_options_.max_compaction_bytes = 1000000u;
NewVersionStorage(6, kCompactionStyleLevel);
// All 5 L0 files will be picked for intra L0 compaction. The one L1 file
// spans entire L0 key range and is marked as being compacted to avoid
// L0->L1 compaction.
Add(0, 1U, "100", "150", 200000U, 0, 100, 101);
Add(0, 2U, "151", "200", 200000U, 0, 102, 103);
Add(0, 3U, "201", "250", 200000U, 0, 104, 105);
Add(0, 4U, "251", "300", 200000U, 0, 106, 107);
Add(0, 5U, "301", "350", 200000U, 0, 108, 109);
Add(1, 6U, "100", "350", 200000U, 0, 110, 111);
vstorage_->LevelFiles(1)[0]->being_compacted = true;
UpdateVersionStorageInfo();
std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction.get() != nullptr);
ASSERT_EQ(1U, compaction->num_input_levels());
ASSERT_EQ(5U, compaction->num_input_files(0));
ASSERT_EQ(CompactionReason::kLevelL0FilesNum,
compaction->compaction_reason());
ASSERT_EQ(0, compaction->output_level());
}
TEST_F(CompactionPickerTest, IntraL0MaxCompactionBytesHit) {
// Intra L0 compaction triggers only if there are at least
// level0_file_num_compaction_trigger + 2 L0 files.
mutable_cf_options_.level0_file_num_compaction_trigger = 3;
mutable_cf_options_.max_compaction_bytes = 999999u;
NewVersionStorage(6, kCompactionStyleLevel);
// 4 out of 5 L0 files will be picked for intra L0 compaction due to
// max_compaction_bytes limit (the minimum number of files for triggering
// intra L0 compaction is 4). The one L1 file spans entire L0 key range and
// is marked as being compacted to avoid L0->L1 compaction.
Add(0, 1U, "100", "150", 200000U, 0, 100, 101);
Add(0, 2U, "151", "200", 200000U, 0, 102, 103);
Add(0, 3U, "201", "250", 200000U, 0, 104, 105);
Add(0, 4U, "251", "300", 200000U, 0, 106, 107);
Add(0, 5U, "301", "350", 200000U, 0, 108, 109);
Add(1, 6U, "100", "350", 200000U, 0, 109, 110);
vstorage_->LevelFiles(1)[0]->being_compacted = true;
UpdateVersionStorageInfo();
std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction.get() != nullptr);
ASSERT_EQ(1U, compaction->num_input_levels());
ASSERT_EQ(4U, compaction->num_input_files(0));
ASSERT_EQ(CompactionReason::kLevelL0FilesNum,
compaction->compaction_reason());
ASSERT_EQ(0, compaction->output_level());
}
TEST_F(CompactionPickerTest, IntraL0ForEarliestSeqno) {
// Intra L0 compaction triggers only if there are at least
// level0_file_num_compaction_trigger + 2 L0 files.
mutable_cf_options_.level0_file_num_compaction_trigger = 3;
mutable_cf_options_.max_compaction_bytes = 999999u;
NewVersionStorage(6, kCompactionStyleLevel);
// 4 out of 6 L0 files will be picked for intra L0 compaction due to
// being_compact limit. And the latest one L0 will be skipped due to earliest
// seqno. The one L1 file spans entire L0 key range and is marked as being
// compacted to avoid L0->L1 compaction.
Add(1, 1U, "100", "350", 200000U, 0, 110, 111);
Add(0, 2U, "301", "350", 1U, 0, 108, 109);
Add(0, 3U, "251", "300", 1U, 0, 106, 107);
Add(0, 4U, "201", "250", 1U, 0, 104, 105);
Add(0, 5U, "151", "200", 1U, 0, 102, 103);
Add(0, 6U, "100", "150", 1U, 0, 100, 101);
Add(0, 7U, "100", "100", 1U, 0, 99, 100);
vstorage_->LevelFiles(0)[5]->being_compacted = true;
vstorage_->LevelFiles(1)[0]->being_compacted = true;
UpdateVersionStorageInfo();
std::unique_ptr<Compaction> compaction(level_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_, 107));
ASSERT_TRUE(compaction.get() != nullptr);
ASSERT_EQ(1U, compaction->num_input_levels());
ASSERT_EQ(4U, compaction->num_input_files(0));
ASSERT_EQ(CompactionReason::kLevelL0FilesNum,
compaction->compaction_reason());
ASSERT_EQ(0, compaction->output_level());
}
#ifndef ROCKSDB_LITE
TEST_F(CompactionPickerTest, UniversalMarkedCompactionFullOverlap) {
const uint64_t kFileSize = 100000;
ioptions_.compaction_style = kCompactionStyleUniversal;
UniversalCompactionPicker universal_compaction_picker(ioptions_, &icmp_);
// This test covers the case where a "regular" universal compaction is
// scheduled first, followed by a delete triggered compaction. The latter
// should fail
NewVersionStorage(5, kCompactionStyleUniversal);
Add(0, 1U, "150", "200", kFileSize, 0, 500, 550);
Add(0, 2U, "201", "250", 2 * kFileSize, 0, 401, 450);
Add(0, 4U, "260", "300", 4 * kFileSize, 0, 260, 300);
Add(3, 5U, "010", "080", 8 * kFileSize, 0, 200, 251);
Add(4, 3U, "301", "350", 8 * kFileSize, 0, 101, 150);
Add(4, 6U, "501", "750", 8 * kFileSize, 0, 101, 150);
UpdateVersionStorageInfo();
std::unique_ptr<Compaction> compaction(
universal_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction);
// Validate that its a compaction to reduce sorted runs
ASSERT_EQ(CompactionReason::kUniversalSortedRunNum,
compaction->compaction_reason());
ASSERT_EQ(0, compaction->output_level());
ASSERT_EQ(0, compaction->start_level());
ASSERT_EQ(2U, compaction->num_input_files(0));
AddVersionStorage();
// Simulate a flush and mark the file for compaction
Add(0, 7U, "150", "200", kFileSize, 0, 551, 600, 0, true);
UpdateVersionStorageInfo();
std::unique_ptr<Compaction> compaction2(
universal_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_FALSE(compaction2);
}
TEST_F(CompactionPickerTest, UniversalMarkedCompactionFullOverlap2) {
const uint64_t kFileSize = 100000;
ioptions_.compaction_style = kCompactionStyleUniversal;
UniversalCompactionPicker universal_compaction_picker(ioptions_, &icmp_);
// This test covers the case where a delete triggered compaction is
// scheduled first, followed by a "regular" compaction. The latter
// should fail
NewVersionStorage(5, kCompactionStyleUniversal);
// Mark file number 4 for compaction
Add(0, 4U, "260", "300", 4 * kFileSize, 0, 260, 300, 0, true);
Add(3, 5U, "240", "290", 8 * kFileSize, 0, 201, 250);
Add(4, 3U, "301", "350", 8 * kFileSize, 0, 101, 150);
Add(4, 6U, "501", "750", 8 * kFileSize, 0, 101, 150);
UpdateVersionStorageInfo();
std::unique_ptr<Compaction> compaction(
universal_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction);
// Validate that its a delete triggered compaction
ASSERT_EQ(CompactionReason::kFilesMarkedForCompaction,
compaction->compaction_reason());
ASSERT_EQ(3, compaction->output_level());
ASSERT_EQ(0, compaction->start_level());
ASSERT_EQ(1U, compaction->num_input_files(0));
ASSERT_EQ(1U, compaction->num_input_files(1));
AddVersionStorage();
Add(0, 1U, "150", "200", kFileSize, 0, 500, 550);
Add(0, 2U, "201", "250", 2 * kFileSize, 0, 401, 450);
UpdateVersionStorageInfo();
std::unique_ptr<Compaction> compaction2(
universal_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_FALSE(compaction2);
}
TEST_F(CompactionPickerTest, UniversalMarkedCompactionStartOutputOverlap) {
// The case where universal periodic compaction can be picked
// with some newer files being compacted.
const uint64_t kFileSize = 100000;
ioptions_.compaction_style = kCompactionStyleUniversal;
bool input_level_overlap = false;
bool output_level_overlap = false;
// Let's mark 2 files in 2 different levels for compaction. The
// compaction picker will randomly pick one, so use the sync point to
// ensure a deterministic order. Loop until both cases are covered
size_t random_index = 0;
SyncPoint::GetInstance()->SetCallBack(
"CompactionPicker::PickFilesMarkedForCompaction", [&](void* arg) {
size_t* index = static_cast<size_t*>(arg);
*index = random_index;
});
SyncPoint::GetInstance()->EnableProcessing();
while (!input_level_overlap || !output_level_overlap) {
// Ensure that the L0 file gets picked first
random_index = !input_level_overlap ? 0 : 1;
UniversalCompactionPicker universal_compaction_picker(ioptions_, &icmp_);
NewVersionStorage(5, kCompactionStyleUniversal);
Add(0, 1U, "260", "300", 4 * kFileSize, 0, 260, 300, 0, true);
Add(3, 2U, "010", "020", 2 * kFileSize, 0, 201, 248);
Add(3, 3U, "250", "270", 2 * kFileSize, 0, 202, 249);
Add(3, 4U, "290", "310", 2 * kFileSize, 0, 203, 250);
Add(3, 5U, "310", "320", 2 * kFileSize, 0, 204, 251, 0, true);
Add(4, 6U, "301", "350", 8 * kFileSize, 0, 101, 150);
Add(4, 7U, "501", "750", 8 * kFileSize, 0, 101, 150);
UpdateVersionStorageInfo();
std::unique_ptr<Compaction> compaction(
universal_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction);
// Validate that its a delete triggered compaction
ASSERT_EQ(CompactionReason::kFilesMarkedForCompaction,
compaction->compaction_reason());
ASSERT_TRUE(compaction->start_level() == 0 ||
compaction->start_level() == 3);
if (compaction->start_level() == 0) {
// The L0 file was picked. The next compaction will detect an
// overlap on its input level
input_level_overlap = true;
ASSERT_EQ(3, compaction->output_level());
ASSERT_EQ(1U, compaction->num_input_files(0));
ASSERT_EQ(3U, compaction->num_input_files(1));
} else {
// The level 3 file was picked. The next compaction will pick
// the L0 file and will detect overlap when adding output
// level inputs
output_level_overlap = true;
ASSERT_EQ(4, compaction->output_level());
ASSERT_EQ(2U, compaction->num_input_files(0));
ASSERT_EQ(1U, compaction->num_input_files(1));
}
vstorage_->ComputeCompactionScore(ioptions_, mutable_cf_options_);
// After recomputing the compaction score, only one marked file will remain
random_index = 0;
std::unique_ptr<Compaction> compaction2(
universal_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_FALSE(compaction2);
DeleteVersionStorage();
}
}
TEST_F(CompactionPickerTest, UniversalMarkedL0NoOverlap) {
const uint64_t kFileSize = 100000;
ioptions_.compaction_style = kCompactionStyleUniversal;
UniversalCompactionPicker universal_compaction_picker(ioptions_, &icmp_);
// This test covers the case where a delete triggered compaction is
// scheduled and should result in a full compaction
NewVersionStorage(1, kCompactionStyleUniversal);
// Mark file number 4 for compaction
Add(0, 4U, "260", "300", 1 * kFileSize, 0, 260, 300, 0, true);
Add(0, 5U, "240", "290", 2 * kFileSize, 0, 201, 250);
Add(0, 3U, "301", "350", 4 * kFileSize, 0, 101, 150);
Add(0, 6U, "501", "750", 8 * kFileSize, 0, 50, 100);
UpdateVersionStorageInfo();
std::unique_ptr<Compaction> compaction(
universal_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction);
// Validate that its a delete triggered compaction
ASSERT_EQ(CompactionReason::kFilesMarkedForCompaction,
compaction->compaction_reason());
ASSERT_EQ(0, compaction->output_level());
ASSERT_EQ(0, compaction->start_level());
ASSERT_EQ(4U, compaction->num_input_files(0));
ASSERT_TRUE(file_map_[4].first->being_compacted);
ASSERT_TRUE(file_map_[5].first->being_compacted);
ASSERT_TRUE(file_map_[3].first->being_compacted);
ASSERT_TRUE(file_map_[6].first->being_compacted);
}
TEST_F(CompactionPickerTest, UniversalMarkedL0WithOverlap) {
const uint64_t kFileSize = 100000;
ioptions_.compaction_style = kCompactionStyleUniversal;
UniversalCompactionPicker universal_compaction_picker(ioptions_, &icmp_);
// This test covers the case where a file is being compacted, and a
// delete triggered compaction is then scheduled. The latter should stop
// at the first file being compacted
NewVersionStorage(1, kCompactionStyleUniversal);
// Mark file number 4 for compaction
Add(0, 4U, "260", "300", 1 * kFileSize, 0, 260, 300, 0, true);
Add(0, 5U, "240", "290", 2 * kFileSize, 0, 201, 250);
Add(0, 3U, "301", "350", 4 * kFileSize, 0, 101, 150);
Add(0, 6U, "501", "750", 8 * kFileSize, 0, 50, 100);
UpdateVersionStorageInfo();
file_map_[3].first->being_compacted = true;
std::unique_ptr<Compaction> compaction(
universal_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction);
// Validate that its a delete triggered compaction
ASSERT_EQ(CompactionReason::kFilesMarkedForCompaction,
compaction->compaction_reason());
ASSERT_EQ(0, compaction->output_level());
ASSERT_EQ(0, compaction->start_level());
ASSERT_EQ(2U, compaction->num_input_files(0));
ASSERT_TRUE(file_map_[4].first->being_compacted);
ASSERT_TRUE(file_map_[5].first->being_compacted);
}
TEST_F(CompactionPickerTest, UniversalMarkedL0Overlap2) {
const uint64_t kFileSize = 100000;
ioptions_.compaction_style = kCompactionStyleUniversal;
UniversalCompactionPicker universal_compaction_picker(ioptions_, &icmp_);
// This test covers the case where a delete triggered compaction is
// scheduled first, followed by a "regular" compaction. The latter
// should fail
NewVersionStorage(1, kCompactionStyleUniversal);
// Mark file number 4 for compaction
Add(0, 4U, "260", "300", 1 * kFileSize, 0, 260, 300);
Add(0, 5U, "240", "290", 2 * kFileSize, 0, 201, 250, 0, true);
Add(0, 3U, "301", "350", 4 * kFileSize, 0, 101, 150);
Add(0, 6U, "501", "750", 8 * kFileSize, 0, 50, 100);
UpdateVersionStorageInfo();
std::unique_ptr<Compaction> compaction(
universal_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction);
// Validate that its a delete triggered compaction
ASSERT_EQ(CompactionReason::kFilesMarkedForCompaction,
compaction->compaction_reason());
ASSERT_EQ(0, compaction->output_level());
ASSERT_EQ(0, compaction->start_level());
ASSERT_EQ(3U, compaction->num_input_files(0));
ASSERT_TRUE(file_map_[5].first->being_compacted);
ASSERT_TRUE(file_map_[3].first->being_compacted);
ASSERT_TRUE(file_map_[6].first->being_compacted);
AddVersionStorage();
Add(0, 1U, "150", "200", kFileSize, 0, 500, 550);
Add(0, 2U, "201", "250", kFileSize, 0, 401, 450);
UpdateVersionStorageInfo();
std::unique_ptr<Compaction> compaction2(
universal_compaction_picker.PickCompaction(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
&log_buffer_));
ASSERT_TRUE(compaction2);
ASSERT_EQ(3U, compaction->num_input_files(0));
ASSERT_TRUE(file_map_[1].first->being_compacted);
ASSERT_TRUE(file_map_[2].first->being_compacted);
ASSERT_TRUE(file_map_[4].first->being_compacted);
}
TEST_F(CompactionPickerTest, UniversalMarkedManualCompaction) {
const uint64_t kFileSize = 100000;
const int kNumLevels = 7;
// This test makes sure the `files_marked_for_compaction_` is updated after
// creating manual compaction.
ioptions_.compaction_style = kCompactionStyleUniversal;
UniversalCompactionPicker universal_compaction_picker(ioptions_, &icmp_);
NewVersionStorage(kNumLevels, kCompactionStyleUniversal);
// Add 3 files marked for compaction
Add(0, 3U, "301", "350", 4 * kFileSize, 0, 101, 150, 0, true);
Add(0, 4U, "260", "300", 1 * kFileSize, 0, 260, 300, 0, true);
Add(0, 5U, "240", "290", 2 * kFileSize, 0, 201, 250, 0, true);
UpdateVersionStorageInfo();
// All 3 files are marked for compaction
ASSERT_EQ(3U, vstorage_->FilesMarkedForCompaction().size());
bool manual_conflict = false;
InternalKey* manual_end = NULL;
std::unique_ptr<Compaction> compaction(
universal_compaction_picker.CompactRange(
cf_name_, mutable_cf_options_, mutable_db_options_, vstorage_.get(),
ColumnFamilyData::kCompactAllLevels, 6, CompactRangeOptions(), NULL,
NULL, &manual_end, &manual_conflict, port::kMaxUint64));
ASSERT_TRUE(compaction);
ASSERT_EQ(CompactionReason::kManualCompaction,
compaction->compaction_reason());
ASSERT_EQ(kNumLevels - 1, compaction->output_level());
ASSERT_EQ(0, compaction->start_level());
ASSERT_EQ(3U, compaction->num_input_files(0));
ASSERT_TRUE(file_map_[3].first->being_compacted);
ASSERT_TRUE(file_map_[4].first->being_compacted);
ASSERT_TRUE(file_map_[5].first->being_compacted);
// After creating the manual compaction, all files should be cleared from
// `FilesMarkedForCompaction`. So they won't be picked by others.
ASSERT_EQ(0U, vstorage_->FilesMarkedForCompaction().size());
}
#endif // ROCKSDB_LITE
} // namespace ROCKSDB_NAMESPACE
int main(int argc, char** argv) {
::testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}
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