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rocksdb/db/version_builder_test.cc
Levi Tamasi e367bc7f4b Clean up blob files based on the linked SST set (#7001) 
Summary:
The earlier `VersionBuilder` code only cleaned up blob files that were
marked as entirely consisting of garbage using `VersionEdits` with
`BlobFileGarbage`. This covers the cases when table files go through
regular compaction, where we iterate through the KVs and thus have an
opportunity to calculate the amount of garbage (that is, most cases).
However, it does not help when table files are simply dropped (e.g. deletion
compactions or the `DeleteFile` API). To deal with such cases, the patch
adds logic that cleans up all blob files at the head of the list until the first
one with linked SSTs is found. (As an example, let's assume we have blob files
with numbers 1..10, and the first one with any linked SSTs is number 8.
This means that SSTs in the `Version` only rely on blob files with numbers >= 8,
and thus 1..7 are no longer needed.)

The code change itself is pretty small; however, changing the logic like this
necessitated changes to some tests that have been added recently (namely
to the ones that use blob files in isolation, i.e. without any table files referring
to them). Some of these cases were fixed by bypassing `VersionBuilder` altogether
in order to keep the tests simple (which actually makes them more proper unit tests
as well), while the `VersionBuilder` unit tests were fixed by adding dummy table
files to the test cases as needed.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/7001

Test Plan: `make check`

Reviewed By: riversand963

Differential Revision: D22119474

Pulled By: ltamasi

fbshipit-source-id: c6547141355667d4291d9661d6518eb741e7b54a
2020-06-30 15:31:21 -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 <cstring>
#include <iomanip>
#include <memory>
#include <sstream>
#include <string>
#include "db/version_edit.h"
#include "db/version_set.h"
#include "logging/logging.h"
#include "test_util/testharness.h"
#include "test_util/testutil.h"
#include "util/string_util.h"
namespace ROCKSDB_NAMESPACE {
class VersionBuilderTest : public testing::Test {
public:
const Comparator* ucmp_;
InternalKeyComparator icmp_;
Options options_;
ImmutableCFOptions ioptions_;
MutableCFOptions mutable_cf_options_;
VersionStorageInfo vstorage_;
uint32_t file_num_;
CompactionOptionsFIFO fifo_options_;
std::vector<uint64_t> size_being_compacted_;
VersionBuilderTest()
: ucmp_(BytewiseComparator()),
icmp_(ucmp_),
ioptions_(options_),
mutable_cf_options_(options_),
vstorage_(&icmp_, ucmp_, options_.num_levels, kCompactionStyleLevel,
nullptr, false),
file_num_(1) {
mutable_cf_options_.RefreshDerivedOptions(ioptions_);
size_being_compacted_.resize(options_.num_levels);
}
~VersionBuilderTest() override {
for (int i = 0; i < vstorage_.num_levels(); i++) {
for (auto* f : vstorage_.LevelFiles(i)) {
if (--f->refs == 0) {
delete f;
}
}
}
}
InternalKey GetInternalKey(const char* ukey,
SequenceNumber smallest_seq = 100) {
return InternalKey(ukey, smallest_seq, kTypeValue);
}
void Add(int level, uint64_t file_number, const char* smallest,
const char* largest, uint64_t file_size = 0, uint32_t path_id = 0,
SequenceNumber smallest_seq = 100, SequenceNumber largest_seq = 100,
uint64_t num_entries = 0, uint64_t num_deletions = 0,
bool sampled = false, SequenceNumber smallest_seqno = 0,
SequenceNumber largest_seqno = 0,
uint64_t oldest_blob_file_number = kInvalidBlobFileNumber) {
assert(level < vstorage_.num_levels());
FileMetaData* f = new FileMetaData(
file_number, path_id, file_size, GetInternalKey(smallest, smallest_seq),
GetInternalKey(largest, largest_seq), smallest_seqno, largest_seqno,
/* marked_for_compact */ false, oldest_blob_file_number,
kUnknownOldestAncesterTime, kUnknownFileCreationTime,
kUnknownFileChecksum, kUnknownFileChecksumFuncName);
f->compensated_file_size = file_size;
f->num_entries = num_entries;
f->num_deletions = num_deletions;
vstorage_.AddFile(level, f);
if (sampled) {
f->init_stats_from_file = true;
vstorage_.UpdateAccumulatedStats(f);
}
}
void AddBlob(uint64_t blob_file_number, uint64_t total_blob_count,
uint64_t total_blob_bytes, std::string checksum_method,
std::string checksum_value,
BlobFileMetaData::LinkedSsts linked_ssts,
uint64_t garbage_blob_count, uint64_t garbage_blob_bytes) {
auto shared_meta = SharedBlobFileMetaData::Create(
blob_file_number, total_blob_count, total_blob_bytes,
std::move(checksum_method), std::move(checksum_value));
auto meta =
BlobFileMetaData::Create(std::move(shared_meta), std::move(linked_ssts),
garbage_blob_count, garbage_blob_bytes);
vstorage_.AddBlobFile(std::move(meta));
}
void AddDummyFile(uint64_t table_file_number, uint64_t blob_file_number) {
constexpr int level = 0;
constexpr char smallest[] = "bar";
constexpr char largest[] = "foo";
constexpr uint64_t file_size = 100;
constexpr uint32_t path_id = 0;
constexpr SequenceNumber smallest_seq = 0;
constexpr SequenceNumber largest_seq = 0;
constexpr uint64_t num_entries = 0;
constexpr uint64_t num_deletions = 0;
constexpr bool sampled = false;
Add(level, table_file_number, smallest, largest, file_size, path_id,
smallest_seq, largest_seq, num_entries, num_deletions, sampled,
smallest_seq, largest_seq, blob_file_number);
}
void AddDummyFileToEdit(VersionEdit* edit, uint64_t table_file_number,
uint64_t blob_file_number) {
assert(edit);
constexpr int level = 0;
constexpr uint32_t path_id = 0;
constexpr uint64_t file_size = 100;
constexpr char smallest[] = "bar";
constexpr char largest[] = "foo";
constexpr SequenceNumber smallest_seqno = 100;
constexpr SequenceNumber largest_seqno = 300;
constexpr bool marked_for_compaction = false;
edit->AddFile(level, table_file_number, path_id, file_size,
GetInternalKey(smallest), GetInternalKey(largest),
smallest_seqno, largest_seqno, marked_for_compaction,
blob_file_number, kUnknownOldestAncesterTime,
kUnknownFileCreationTime, kUnknownFileChecksum,
kUnknownFileChecksumFuncName);
}
static std::shared_ptr<BlobFileMetaData> GetBlobFileMetaData(
const VersionStorageInfo::BlobFiles& blob_files,
uint64_t blob_file_number) {
const auto it = blob_files.find(blob_file_number);
if (it == blob_files.end()) {
return std::shared_ptr<BlobFileMetaData>();
}
const auto& meta = it->second;
assert(meta);
return meta;
}
void UpdateVersionStorageInfo() {
vstorage_.UpdateFilesByCompactionPri(ioptions_.compaction_pri);
vstorage_.UpdateNumNonEmptyLevels();
vstorage_.GenerateFileIndexer();
vstorage_.GenerateLevelFilesBrief();
vstorage_.CalculateBaseBytes(ioptions_, mutable_cf_options_);
vstorage_.GenerateLevel0NonOverlapping();
vstorage_.SetFinalized();
}
};
void UnrefFilesInVersion(VersionStorageInfo* new_vstorage) {
for (int i = 0; i < new_vstorage->num_levels(); i++) {
for (auto* f : new_vstorage->LevelFiles(i)) {
if (--f->refs == 0) {
delete f;
}
}
}
}
TEST_F(VersionBuilderTest, ApplyAndSaveTo) {
Add(0, 1U, "150", "200", 100U);
Add(1, 66U, "150", "200", 100U);
Add(1, 88U, "201", "300", 100U);
Add(2, 6U, "150", "179", 100U);
Add(2, 7U, "180", "220", 100U);
Add(2, 8U, "221", "300", 100U);
Add(3, 26U, "150", "170", 100U);
Add(3, 27U, "171", "179", 100U);
Add(3, 28U, "191", "220", 100U);
Add(3, 29U, "221", "300", 100U);
UpdateVersionStorageInfo();
VersionEdit version_edit;
version_edit.AddFile(2, 666, 0, 100U, GetInternalKey("301"),
GetInternalKey("350"), 200, 200, false,
kInvalidBlobFileNumber, kUnknownOldestAncesterTime,
kUnknownFileCreationTime, kUnknownFileChecksum,
kUnknownFileChecksumFuncName);
version_edit.DeleteFile(3, 27U);
EnvOptions env_options;
constexpr TableCache* table_cache = nullptr;
constexpr VersionSet* version_set = nullptr;
VersionBuilder version_builder(env_options, &ioptions_, table_cache,
&vstorage_, version_set);
VersionStorageInfo new_vstorage(&icmp_, ucmp_, options_.num_levels,
kCompactionStyleLevel, nullptr, false);
version_builder.Apply(&version_edit);
version_builder.SaveTo(&new_vstorage);
ASSERT_EQ(400U, new_vstorage.NumLevelBytes(2));
ASSERT_EQ(300U, new_vstorage.NumLevelBytes(3));
UnrefFilesInVersion(&new_vstorage);
}
TEST_F(VersionBuilderTest, ApplyAndSaveToDynamic) {
ioptions_.level_compaction_dynamic_level_bytes = true;
Add(0, 1U, "150", "200", 100U, 0, 200U, 200U, 0, 0, false, 200U, 200U);
Add(0, 88U, "201", "300", 100U, 0, 100U, 100U, 0, 0, false, 100U, 100U);
Add(4, 6U, "150", "179", 100U);
Add(4, 7U, "180", "220", 100U);
Add(4, 8U, "221", "300", 100U);
Add(5, 26U, "150", "170", 100U);
Add(5, 27U, "171", "179", 100U);
UpdateVersionStorageInfo();
VersionEdit version_edit;
version_edit.AddFile(3, 666, 0, 100U, GetInternalKey("301"),
GetInternalKey("350"), 200, 200, false,
kInvalidBlobFileNumber, kUnknownOldestAncesterTime,
kUnknownFileCreationTime, kUnknownFileChecksum,
kUnknownFileChecksumFuncName);
version_edit.DeleteFile(0, 1U);
version_edit.DeleteFile(0, 88U);
EnvOptions env_options;
constexpr TableCache* table_cache = nullptr;
constexpr VersionSet* version_set = nullptr;
VersionBuilder version_builder(env_options, &ioptions_, table_cache,
&vstorage_, version_set);
VersionStorageInfo new_vstorage(&icmp_, ucmp_, options_.num_levels,
kCompactionStyleLevel, nullptr, false);
version_builder.Apply(&version_edit);
version_builder.SaveTo(&new_vstorage);
ASSERT_EQ(0U, new_vstorage.NumLevelBytes(0));
ASSERT_EQ(100U, new_vstorage.NumLevelBytes(3));
ASSERT_EQ(300U, new_vstorage.NumLevelBytes(4));
ASSERT_EQ(200U, new_vstorage.NumLevelBytes(5));
UnrefFilesInVersion(&new_vstorage);
}
TEST_F(VersionBuilderTest, ApplyAndSaveToDynamic2) {
ioptions_.level_compaction_dynamic_level_bytes = true;
Add(0, 1U, "150", "200", 100U, 0, 200U, 200U, 0, 0, false, 200U, 200U);
Add(0, 88U, "201", "300", 100U, 0, 100U, 100U, 0, 0, false, 100U, 100U);
Add(4, 6U, "150", "179", 100U);
Add(4, 7U, "180", "220", 100U);
Add(4, 8U, "221", "300", 100U);
Add(5, 26U, "150", "170", 100U);
Add(5, 27U, "171", "179", 100U);
UpdateVersionStorageInfo();
VersionEdit version_edit;
version_edit.AddFile(4, 666, 0, 100U, GetInternalKey("301"),
GetInternalKey("350"), 200, 200, false,
kInvalidBlobFileNumber, kUnknownOldestAncesterTime,
kUnknownFileCreationTime, kUnknownFileChecksum,
kUnknownFileChecksumFuncName);
version_edit.DeleteFile(0, 1U);
version_edit.DeleteFile(0, 88U);
version_edit.DeleteFile(4, 6U);
version_edit.DeleteFile(4, 7U);
version_edit.DeleteFile(4, 8U);
EnvOptions env_options;
constexpr TableCache* table_cache = nullptr;
constexpr VersionSet* version_set = nullptr;
VersionBuilder version_builder(env_options, &ioptions_, table_cache,
&vstorage_, version_set);
VersionStorageInfo new_vstorage(&icmp_, ucmp_, options_.num_levels,
kCompactionStyleLevel, nullptr, false);
version_builder.Apply(&version_edit);
version_builder.SaveTo(&new_vstorage);
ASSERT_EQ(0U, new_vstorage.NumLevelBytes(0));
ASSERT_EQ(100U, new_vstorage.NumLevelBytes(4));
ASSERT_EQ(200U, new_vstorage.NumLevelBytes(5));
UnrefFilesInVersion(&new_vstorage);
}
TEST_F(VersionBuilderTest, ApplyMultipleAndSaveTo) {
UpdateVersionStorageInfo();
VersionEdit version_edit;
version_edit.AddFile(2, 666, 0, 100U, GetInternalKey("301"),
GetInternalKey("350"), 200, 200, false,
kInvalidBlobFileNumber, kUnknownOldestAncesterTime,
kUnknownFileCreationTime, kUnknownFileChecksum,
kUnknownFileChecksumFuncName);
version_edit.AddFile(2, 676, 0, 100U, GetInternalKey("401"),
GetInternalKey("450"), 200, 200, false,
kInvalidBlobFileNumber, kUnknownOldestAncesterTime,
kUnknownFileCreationTime, kUnknownFileChecksum,
kUnknownFileChecksumFuncName);
version_edit.AddFile(2, 636, 0, 100U, GetInternalKey("601"),
GetInternalKey("650"), 200, 200, false,
kInvalidBlobFileNumber, kUnknownOldestAncesterTime,
kUnknownFileCreationTime, kUnknownFileChecksum,
kUnknownFileChecksumFuncName);
version_edit.AddFile(2, 616, 0, 100U, GetInternalKey("501"),
GetInternalKey("550"), 200, 200, false,
kInvalidBlobFileNumber, kUnknownOldestAncesterTime,
kUnknownFileCreationTime, kUnknownFileChecksum,
kUnknownFileChecksumFuncName);
version_edit.AddFile(2, 606, 0, 100U, GetInternalKey("701"),
GetInternalKey("750"), 200, 200, false,
kInvalidBlobFileNumber, kUnknownOldestAncesterTime,
kUnknownFileCreationTime, kUnknownFileChecksum,
kUnknownFileChecksumFuncName);
EnvOptions env_options;
constexpr TableCache* table_cache = nullptr;
constexpr VersionSet* version_set = nullptr;
VersionBuilder version_builder(env_options, &ioptions_, table_cache,
&vstorage_, version_set);
VersionStorageInfo new_vstorage(&icmp_, ucmp_, options_.num_levels,
kCompactionStyleLevel, nullptr, false);
version_builder.Apply(&version_edit);
version_builder.SaveTo(&new_vstorage);
ASSERT_EQ(500U, new_vstorage.NumLevelBytes(2));
UnrefFilesInVersion(&new_vstorage);
}
TEST_F(VersionBuilderTest, ApplyDeleteAndSaveTo) {
UpdateVersionStorageInfo();
EnvOptions env_options;
constexpr TableCache* table_cache = nullptr;
constexpr VersionSet* version_set = nullptr;
VersionBuilder version_builder(env_options, &ioptions_, table_cache,
&vstorage_, version_set);
VersionStorageInfo new_vstorage(&icmp_, ucmp_, options_.num_levels,
kCompactionStyleLevel, nullptr, false);
VersionEdit version_edit;
version_edit.AddFile(2, 666, 0, 100U, GetInternalKey("301"),
GetInternalKey("350"), 200, 200, false,
kInvalidBlobFileNumber, kUnknownOldestAncesterTime,
kUnknownFileCreationTime, kUnknownFileChecksum,
kUnknownFileChecksumFuncName);
version_edit.AddFile(2, 676, 0, 100U, GetInternalKey("401"),
GetInternalKey("450"), 200, 200, false,
kInvalidBlobFileNumber, kUnknownOldestAncesterTime,
kUnknownFileCreationTime, kUnknownFileChecksum,
kUnknownFileChecksumFuncName);
version_edit.AddFile(2, 636, 0, 100U, GetInternalKey("601"),
GetInternalKey("650"), 200, 200, false,
kInvalidBlobFileNumber, kUnknownOldestAncesterTime,
kUnknownFileCreationTime, kUnknownFileChecksum,
kUnknownFileChecksumFuncName);
version_edit.AddFile(2, 616, 0, 100U, GetInternalKey("501"),
GetInternalKey("550"), 200, 200, false,
kInvalidBlobFileNumber, kUnknownOldestAncesterTime,
kUnknownFileCreationTime, kUnknownFileChecksum,
kUnknownFileChecksumFuncName);
version_edit.AddFile(2, 606, 0, 100U, GetInternalKey("701"),
GetInternalKey("750"), 200, 200, false,
kInvalidBlobFileNumber, kUnknownOldestAncesterTime,
kUnknownFileCreationTime, kUnknownFileChecksum,
kUnknownFileChecksumFuncName);
version_builder.Apply(&version_edit);
VersionEdit version_edit2;
version_edit.AddFile(2, 808, 0, 100U, GetInternalKey("901"),
GetInternalKey("950"), 200, 200, false,
kInvalidBlobFileNumber, kUnknownOldestAncesterTime,
kUnknownFileCreationTime, kUnknownFileChecksum,
kUnknownFileChecksumFuncName);
version_edit2.DeleteFile(2, 616);
version_edit2.DeleteFile(2, 636);
version_edit.AddFile(2, 806, 0, 100U, GetInternalKey("801"),
GetInternalKey("850"), 200, 200, false,
kInvalidBlobFileNumber, kUnknownOldestAncesterTime,
kUnknownFileCreationTime, kUnknownFileChecksum,
kUnknownFileChecksumFuncName);
version_builder.Apply(&version_edit2);
version_builder.SaveTo(&new_vstorage);
ASSERT_EQ(300U, new_vstorage.NumLevelBytes(2));
UnrefFilesInVersion(&new_vstorage);
}
TEST_F(VersionBuilderTest, ApplyFileDeletionIncorrectLevel) {
constexpr int level = 1;
constexpr uint64_t file_number = 2345;
constexpr char smallest[] = "bar";
constexpr char largest[] = "foo";
Add(level, file_number, smallest, largest);
EnvOptions env_options;
constexpr TableCache* table_cache = nullptr;
constexpr VersionSet* version_set = nullptr;
VersionBuilder builder(env_options, &ioptions_, table_cache, &vstorage_,
version_set);
VersionEdit edit;
constexpr int incorrect_level = 3;
edit.DeleteFile(incorrect_level, file_number);
const Status s = builder.Apply(&edit);
ASSERT_TRUE(s.IsCorruption());
ASSERT_TRUE(std::strstr(s.getState(),
"Cannot delete table file #2345 from level 3 since "
"it is on level 1"));
}
TEST_F(VersionBuilderTest, ApplyFileDeletionNotInLSMTree) {
EnvOptions env_options;
constexpr TableCache* table_cache = nullptr;
constexpr VersionSet* version_set = nullptr;
VersionBuilder builder(env_options, &ioptions_, table_cache, &vstorage_,
version_set);
VersionEdit edit;
constexpr int level = 3;
constexpr uint64_t file_number = 1234;
edit.DeleteFile(level, file_number);
const Status s = builder.Apply(&edit);
ASSERT_TRUE(s.IsCorruption());
ASSERT_TRUE(std::strstr(s.getState(),
"Cannot delete table file #1234 from level 3 since "
"it is not in the LSM tree"));
}
TEST_F(VersionBuilderTest, ApplyFileDeletionAndAddition) {
constexpr int level = 1;
constexpr uint64_t file_number = 2345;
constexpr char smallest[] = "bar";
constexpr char largest[] = "foo";
constexpr uint64_t file_size = 10000;
constexpr uint32_t path_id = 0;
constexpr SequenceNumber smallest_seq = 100;
constexpr SequenceNumber largest_seq = 500;
constexpr uint64_t num_entries = 0;
constexpr uint64_t num_deletions = 0;
constexpr bool sampled = false;
constexpr SequenceNumber smallest_seqno = 1;
constexpr SequenceNumber largest_seqno = 1000;
Add(level, file_number, smallest, largest, file_size, path_id, smallest_seq,
largest_seq, num_entries, num_deletions, sampled, smallest_seqno,
largest_seqno);
EnvOptions env_options;
constexpr TableCache* table_cache = nullptr;
constexpr VersionSet* version_set = nullptr;
VersionBuilder builder(env_options, &ioptions_, table_cache, &vstorage_,
version_set);
VersionEdit deletion;
deletion.DeleteFile(level, file_number);
ASSERT_OK(builder.Apply(&deletion));
VersionEdit addition;
constexpr bool marked_for_compaction = false;
addition.AddFile(level, file_number, path_id, file_size,
GetInternalKey(smallest, smallest_seq),
GetInternalKey(largest, largest_seq), smallest_seqno,
largest_seqno, marked_for_compaction, kInvalidBlobFileNumber,
kUnknownOldestAncesterTime, kUnknownFileCreationTime,
kUnknownFileChecksum, kUnknownFileChecksumFuncName);
ASSERT_OK(builder.Apply(&addition));
constexpr bool force_consistency_checks = false;
VersionStorageInfo new_vstorage(&icmp_, ucmp_, options_.num_levels,
kCompactionStyleLevel, &vstorage_,
force_consistency_checks);
ASSERT_OK(builder.SaveTo(&new_vstorage));
ASSERT_EQ(new_vstorage.GetFileLocation(file_number).GetLevel(), level);
UnrefFilesInVersion(&new_vstorage);
}
TEST_F(VersionBuilderTest, ApplyFileAdditionAlreadyInBase) {
constexpr int level = 1;
constexpr uint64_t file_number = 2345;
constexpr char smallest[] = "bar";
constexpr char largest[] = "foo";
Add(level, file_number, smallest, largest);
EnvOptions env_options;
constexpr TableCache* table_cache = nullptr;
constexpr VersionSet* version_set = nullptr;
VersionBuilder builder(env_options, &ioptions_, table_cache, &vstorage_,
version_set);
VersionEdit edit;
constexpr int new_level = 2;
constexpr uint32_t path_id = 0;
constexpr uint64_t file_size = 10000;
constexpr SequenceNumber smallest_seqno = 100;
constexpr SequenceNumber largest_seqno = 1000;
constexpr bool marked_for_compaction = false;
edit.AddFile(new_level, file_number, path_id, file_size,
GetInternalKey(smallest), GetInternalKey(largest),
smallest_seqno, largest_seqno, marked_for_compaction,
kInvalidBlobFileNumber, kUnknownOldestAncesterTime,
kUnknownFileCreationTime, kUnknownFileChecksum,
kUnknownFileChecksumFuncName);
const Status s = builder.Apply(&edit);
ASSERT_TRUE(s.IsCorruption());
ASSERT_TRUE(std::strstr(s.getState(),
"Cannot add table file #2345 to level 2 since it is "
"already in the LSM tree on level 1"));
}
TEST_F(VersionBuilderTest, ApplyFileAdditionAlreadyApplied) {
EnvOptions env_options;
constexpr TableCache* table_cache = nullptr;
constexpr VersionSet* version_set = nullptr;
VersionBuilder builder(env_options, &ioptions_, table_cache, &vstorage_,
version_set);
VersionEdit edit;
constexpr int level = 3;
constexpr uint64_t file_number = 2345;
constexpr uint32_t path_id = 0;
constexpr uint64_t file_size = 10000;
constexpr char smallest[] = "bar";
constexpr char largest[] = "foo";
constexpr SequenceNumber smallest_seqno = 100;
constexpr SequenceNumber largest_seqno = 1000;
constexpr bool marked_for_compaction = false;
edit.AddFile(level, file_number, path_id, file_size, GetInternalKey(smallest),
GetInternalKey(largest), smallest_seqno, largest_seqno,
marked_for_compaction, kInvalidBlobFileNumber,
kUnknownOldestAncesterTime, kUnknownFileCreationTime,
kUnknownFileChecksum, kUnknownFileChecksumFuncName);
ASSERT_OK(builder.Apply(&edit));
VersionEdit other_edit;
constexpr int new_level = 2;
other_edit.AddFile(new_level, file_number, path_id, file_size,
GetInternalKey(smallest), GetInternalKey(largest),
smallest_seqno, largest_seqno, marked_for_compaction,
kInvalidBlobFileNumber, kUnknownOldestAncesterTime,
kUnknownFileCreationTime, kUnknownFileChecksum,
kUnknownFileChecksumFuncName);
const Status s = builder.Apply(&other_edit);
ASSERT_TRUE(s.IsCorruption());
ASSERT_TRUE(std::strstr(s.getState(),
"Cannot add table file #2345 to level 2 since it is "
"already in the LSM tree on level 3"));
}
TEST_F(VersionBuilderTest, ApplyFileAdditionAndDeletion) {
constexpr int level = 1;
constexpr uint64_t file_number = 2345;
constexpr uint32_t path_id = 0;
constexpr uint64_t file_size = 10000;
constexpr char smallest[] = "bar";
constexpr char largest[] = "foo";
constexpr SequenceNumber smallest_seqno = 100;
constexpr SequenceNumber largest_seqno = 1000;
constexpr bool marked_for_compaction = false;
EnvOptions env_options;
constexpr TableCache* table_cache = nullptr;
constexpr VersionSet* version_set = nullptr;
VersionBuilder builder(env_options, &ioptions_, table_cache, &vstorage_,
version_set);
VersionEdit addition;
addition.AddFile(level, file_number, path_id, file_size,
GetInternalKey(smallest), GetInternalKey(largest),
smallest_seqno, largest_seqno, marked_for_compaction,
kInvalidBlobFileNumber, kUnknownOldestAncesterTime,
kUnknownFileCreationTime, kUnknownFileChecksum,
kUnknownFileChecksumFuncName);
ASSERT_OK(builder.Apply(&addition));
VersionEdit deletion;
deletion.DeleteFile(level, file_number);
ASSERT_OK(builder.Apply(&deletion));
constexpr bool force_consistency_checks = false;
VersionStorageInfo new_vstorage(&icmp_, ucmp_, options_.num_levels,
kCompactionStyleLevel, &vstorage_,
force_consistency_checks);
ASSERT_OK(builder.SaveTo(&new_vstorage));
ASSERT_FALSE(new_vstorage.GetFileLocation(file_number).IsValid());
UnrefFilesInVersion(&new_vstorage);
}
TEST_F(VersionBuilderTest, ApplyBlobFileAddition) {
EnvOptions env_options;
constexpr TableCache* table_cache = nullptr;
constexpr VersionSet* version_set = nullptr;
VersionBuilder builder(env_options, &ioptions_, table_cache, &vstorage_,
version_set);
VersionEdit edit;
constexpr uint64_t blob_file_number = 1234;
constexpr uint64_t total_blob_count = 5678;
constexpr uint64_t total_blob_bytes = 999999;
constexpr char checksum_method[] = "SHA1";
constexpr char checksum_value[] = "bdb7f34a59dfa1592ce7f52e99f98c570c525cbd";
edit.AddBlobFile(blob_file_number, total_blob_count, total_blob_bytes,
checksum_method, checksum_value);
// Add dummy table file to ensure the blob file is referenced.
constexpr uint64_t table_file_number = 1;
AddDummyFileToEdit(&edit, table_file_number, blob_file_number);
ASSERT_OK(builder.Apply(&edit));
constexpr bool force_consistency_checks = false;
VersionStorageInfo new_vstorage(&icmp_, ucmp_, options_.num_levels,
kCompactionStyleLevel, &vstorage_,
force_consistency_checks);
ASSERT_OK(builder.SaveTo(&new_vstorage));
const auto& new_blob_files = new_vstorage.GetBlobFiles();
ASSERT_EQ(new_blob_files.size(), 1);
const auto new_meta = GetBlobFileMetaData(new_blob_files, blob_file_number);
ASSERT_NE(new_meta, nullptr);
ASSERT_EQ(new_meta->GetBlobFileNumber(), blob_file_number);
ASSERT_EQ(new_meta->GetTotalBlobCount(), total_blob_count);
ASSERT_EQ(new_meta->GetTotalBlobBytes(), total_blob_bytes);
ASSERT_EQ(new_meta->GetChecksumMethod(), checksum_method);
ASSERT_EQ(new_meta->GetChecksumValue(), checksum_value);
ASSERT_EQ(new_meta->GetLinkedSsts(),
BlobFileMetaData::LinkedSsts{table_file_number});
ASSERT_EQ(new_meta->GetGarbageBlobCount(), 0);
ASSERT_EQ(new_meta->GetGarbageBlobBytes(), 0);
UnrefFilesInVersion(&new_vstorage);
}
TEST_F(VersionBuilderTest, ApplyBlobFileAdditionAlreadyInBase) {
// Attempt to add a blob file that is already present in the base version.
constexpr uint64_t blob_file_number = 1234;
constexpr uint64_t total_blob_count = 5678;
constexpr uint64_t total_blob_bytes = 999999;
constexpr char checksum_method[] = "SHA1";
constexpr char checksum_value[] = "bdb7f34a59dfa1592ce7f52e99f98c570c525cbd";
constexpr uint64_t garbage_blob_count = 123;
constexpr uint64_t garbage_blob_bytes = 456789;
AddBlob(blob_file_number, total_blob_count, total_blob_bytes, checksum_method,
checksum_value, BlobFileMetaData::LinkedSsts(), garbage_blob_count,
garbage_blob_bytes);
EnvOptions env_options;
constexpr TableCache* table_cache = nullptr;
constexpr VersionSet* version_set = nullptr;
VersionBuilder builder(env_options, &ioptions_, table_cache, &vstorage_,
version_set);
VersionEdit edit;
edit.AddBlobFile(blob_file_number, total_blob_count, total_blob_bytes,
checksum_method, checksum_value);
const Status s = builder.Apply(&edit);
ASSERT_TRUE(s.IsCorruption());
ASSERT_TRUE(std::strstr(s.getState(), "Blob file #1234 already added"));
}
TEST_F(VersionBuilderTest, ApplyBlobFileAdditionAlreadyApplied) {
// Attempt to add the same blob file twice using version edits.
EnvOptions env_options;
constexpr TableCache* table_cache = nullptr;
constexpr VersionSet* version_set = nullptr;
VersionBuilder builder(env_options, &ioptions_, table_cache, &vstorage_,
version_set);
VersionEdit edit;
constexpr uint64_t blob_file_number = 1234;
constexpr uint64_t total_blob_count = 5678;
constexpr uint64_t total_blob_bytes = 999999;
constexpr char checksum_method[] = "SHA1";
constexpr char checksum_value[] = "bdb7f34a59dfa1592ce7f52e99f98c570c525cbd";
edit.AddBlobFile(blob_file_number, total_blob_count, total_blob_bytes,
checksum_method, checksum_value);
ASSERT_OK(builder.Apply(&edit));
const Status s = builder.Apply(&edit);
ASSERT_TRUE(s.IsCorruption());
ASSERT_TRUE(std::strstr(s.getState(), "Blob file #1234 already added"));
}
TEST_F(VersionBuilderTest, ApplyBlobFileGarbageFileInBase) {
// Increase the amount of garbage for a blob file present in the base version.
constexpr uint64_t table_file_number = 1;
constexpr uint64_t blob_file_number = 1234;
constexpr uint64_t total_blob_count = 5678;
constexpr uint64_t total_blob_bytes = 999999;
constexpr char checksum_method[] = "SHA1";
constexpr char checksum_value[] = "bdb7f34a59dfa1592ce7f52e99f98c570c525cbd";
constexpr uint64_t garbage_blob_count = 123;
constexpr uint64_t garbage_blob_bytes = 456789;
AddBlob(blob_file_number, total_blob_count, total_blob_bytes, checksum_method,
checksum_value, BlobFileMetaData::LinkedSsts{table_file_number},
garbage_blob_count, garbage_blob_bytes);
const auto meta =
GetBlobFileMetaData(vstorage_.GetBlobFiles(), blob_file_number);
ASSERT_NE(meta, nullptr);
// Add dummy table file to ensure the blob file is referenced.
AddDummyFile(table_file_number, blob_file_number);
EnvOptions env_options;
constexpr TableCache* table_cache = nullptr;
constexpr VersionSet* version_set = nullptr;
VersionBuilder builder(env_options, &ioptions_, table_cache, &vstorage_,
version_set);
VersionEdit edit;
constexpr uint64_t new_garbage_blob_count = 456;
constexpr uint64_t new_garbage_blob_bytes = 111111;
edit.AddBlobFileGarbage(blob_file_number, new_garbage_blob_count,
new_garbage_blob_bytes);
ASSERT_OK(builder.Apply(&edit));
constexpr bool force_consistency_checks = false;
VersionStorageInfo new_vstorage(&icmp_, ucmp_, options_.num_levels,
kCompactionStyleLevel, &vstorage_,
force_consistency_checks);
ASSERT_OK(builder.SaveTo(&new_vstorage));
const auto& new_blob_files = new_vstorage.GetBlobFiles();
ASSERT_EQ(new_blob_files.size(), 1);
const auto new_meta = GetBlobFileMetaData(new_blob_files, blob_file_number);
ASSERT_NE(new_meta, nullptr);
ASSERT_EQ(new_meta->GetSharedMeta(), meta->GetSharedMeta());
ASSERT_EQ(new_meta->GetBlobFileNumber(), blob_file_number);
ASSERT_EQ(new_meta->GetTotalBlobCount(), total_blob_count);
ASSERT_EQ(new_meta->GetTotalBlobBytes(), total_blob_bytes);
ASSERT_EQ(new_meta->GetChecksumMethod(), checksum_method);
ASSERT_EQ(new_meta->GetChecksumValue(), checksum_value);
ASSERT_EQ(new_meta->GetLinkedSsts(),
BlobFileMetaData::LinkedSsts{table_file_number});
ASSERT_EQ(new_meta->GetGarbageBlobCount(),
garbage_blob_count + new_garbage_blob_count);
ASSERT_EQ(new_meta->GetGarbageBlobBytes(),
garbage_blob_bytes + new_garbage_blob_bytes);
UnrefFilesInVersion(&new_vstorage);
}
TEST_F(VersionBuilderTest, ApplyBlobFileGarbageFileAdditionApplied) {
// Increase the amount of garbage for a blob file added using a version edit.
EnvOptions env_options;
constexpr TableCache* table_cache = nullptr;
constexpr VersionSet* version_set = nullptr;
VersionBuilder builder(env_options, &ioptions_, table_cache, &vstorage_,
version_set);
VersionEdit addition;
constexpr uint64_t blob_file_number = 1234;
constexpr uint64_t total_blob_count = 5678;
constexpr uint64_t total_blob_bytes = 999999;
constexpr char checksum_method[] = "SHA1";
constexpr char checksum_value[] = "bdb7f34a59dfa1592ce7f52e99f98c570c525cbd";
addition.AddBlobFile(blob_file_number, total_blob_count, total_blob_bytes,
checksum_method, checksum_value);
// Add dummy table file to ensure the blob file is referenced.
constexpr uint64_t table_file_number = 1;
AddDummyFileToEdit(&addition, table_file_number, blob_file_number);
ASSERT_OK(builder.Apply(&addition));
constexpr uint64_t garbage_blob_count = 123;
constexpr uint64_t garbage_blob_bytes = 456789;
VersionEdit garbage;
garbage.AddBlobFileGarbage(blob_file_number, garbage_blob_count,
garbage_blob_bytes);
ASSERT_OK(builder.Apply(&garbage));
constexpr bool force_consistency_checks = false;
VersionStorageInfo new_vstorage(&icmp_, ucmp_, options_.num_levels,
kCompactionStyleLevel, &vstorage_,
force_consistency_checks);
ASSERT_OK(builder.SaveTo(&new_vstorage));
const auto& new_blob_files = new_vstorage.GetBlobFiles();
ASSERT_EQ(new_blob_files.size(), 1);
const auto new_meta = GetBlobFileMetaData(new_blob_files, blob_file_number);
ASSERT_NE(new_meta, nullptr);
ASSERT_EQ(new_meta->GetBlobFileNumber(), blob_file_number);
ASSERT_EQ(new_meta->GetTotalBlobCount(), total_blob_count);
ASSERT_EQ(new_meta->GetTotalBlobBytes(), total_blob_bytes);
ASSERT_EQ(new_meta->GetChecksumMethod(), checksum_method);
ASSERT_EQ(new_meta->GetChecksumValue(), checksum_value);
ASSERT_EQ(new_meta->GetLinkedSsts(),
BlobFileMetaData::LinkedSsts{table_file_number});
ASSERT_EQ(new_meta->GetGarbageBlobCount(), garbage_blob_count);
ASSERT_EQ(new_meta->GetGarbageBlobBytes(), garbage_blob_bytes);
UnrefFilesInVersion(&new_vstorage);
}
TEST_F(VersionBuilderTest, ApplyBlobFileGarbageFileNotFound) {
// Attempt to increase the amount of garbage for a blob file that is
// neither in the base version, nor was it added using a version edit.
EnvOptions env_options;
constexpr TableCache* table_cache = nullptr;
constexpr VersionSet* version_set = nullptr;
VersionBuilder builder(env_options, &ioptions_, table_cache, &vstorage_,
version_set);
VersionEdit edit;
constexpr uint64_t blob_file_number = 1234;
constexpr uint64_t garbage_blob_count = 5678;
constexpr uint64_t garbage_blob_bytes = 999999;
edit.AddBlobFileGarbage(blob_file_number, garbage_blob_count,
garbage_blob_bytes);
const Status s = builder.Apply(&edit);
ASSERT_TRUE(s.IsCorruption());
ASSERT_TRUE(std::strstr(s.getState(), "Blob file #1234 not found"));
}
TEST_F(VersionBuilderTest, SaveBlobFilesTo) {
// Add three blob files to base version.
for (uint64_t i = 3; i >= 1; --i) {
const uint64_t table_file_number = i;
const uint64_t blob_file_number = i;
const uint64_t total_blob_count = i * 1000;
const uint64_t total_blob_bytes = i * 1000000;
const uint64_t garbage_blob_count = i * 100;
const uint64_t garbage_blob_bytes = i * 20000;
AddBlob(blob_file_number, total_blob_count, total_blob_bytes,
/* checksum_method */ std::string(),
/* checksum_value */ std::string(),
BlobFileMetaData::LinkedSsts{table_file_number}, garbage_blob_count,
garbage_blob_bytes);
// Add dummy table file to ensure the blob file is referenced.
AddDummyFile(table_file_number, blob_file_number);
}
EnvOptions env_options;
constexpr TableCache* table_cache = nullptr;
constexpr VersionSet* version_set = nullptr;
VersionBuilder builder(env_options, &ioptions_, table_cache, &vstorage_,
version_set);
VersionEdit edit;
// Add some garbage to the second and third blob files. The second blob file
// remains valid since it does not consist entirely of garbage yet. The third
// blob file is all garbage after the edit and will not be part of the new
// version. The corresponding dummy table file is also removed for
// consistency.
edit.AddBlobFileGarbage(/* blob_file_number */ 2,
/* garbage_blob_count */ 200,
/* garbage_blob_bytes */ 100000);
edit.AddBlobFileGarbage(/* blob_file_number */ 3,
/* garbage_blob_count */ 2700,
/* garbage_blob_bytes */ 2940000);
edit.DeleteFile(/* level */ 0, /* file_number */ 3);
// Add a fourth blob file.
edit.AddBlobFile(/* blob_file_number */ 4, /* total_blob_count */ 4000,
/* total_blob_bytes */ 4000000,
/* checksum_method */ std::string(),
/* checksum_value */ std::string());
ASSERT_OK(builder.Apply(&edit));
constexpr bool force_consistency_checks = false;
VersionStorageInfo new_vstorage(&icmp_, ucmp_, options_.num_levels,
kCompactionStyleLevel, &vstorage_,
force_consistency_checks);
ASSERT_OK(builder.SaveTo(&new_vstorage));
const auto& new_blob_files = new_vstorage.GetBlobFiles();
ASSERT_EQ(new_blob_files.size(), 3);
const auto meta1 = GetBlobFileMetaData(new_blob_files, 1);
ASSERT_NE(meta1, nullptr);
ASSERT_EQ(meta1->GetBlobFileNumber(), 1);
ASSERT_EQ(meta1->GetTotalBlobCount(), 1000);
ASSERT_EQ(meta1->GetTotalBlobBytes(), 1000000);
ASSERT_EQ(meta1->GetGarbageBlobCount(), 100);
ASSERT_EQ(meta1->GetGarbageBlobBytes(), 20000);
const auto meta2 = GetBlobFileMetaData(new_blob_files, 2);
ASSERT_NE(meta2, nullptr);
ASSERT_EQ(meta2->GetBlobFileNumber(), 2);
ASSERT_EQ(meta2->GetTotalBlobCount(), 2000);
ASSERT_EQ(meta2->GetTotalBlobBytes(), 2000000);
ASSERT_EQ(meta2->GetGarbageBlobCount(), 400);
ASSERT_EQ(meta2->GetGarbageBlobBytes(), 140000);
const auto meta4 = GetBlobFileMetaData(new_blob_files, 4);
ASSERT_NE(meta4, nullptr);
ASSERT_EQ(meta4->GetBlobFileNumber(), 4);
ASSERT_EQ(meta4->GetTotalBlobCount(), 4000);
ASSERT_EQ(meta4->GetTotalBlobBytes(), 4000000);
ASSERT_EQ(meta4->GetGarbageBlobCount(), 0);
ASSERT_EQ(meta4->GetGarbageBlobBytes(), 0);
// Delete the first table file, which makes the first blob file obsolete
// since it's at the head and unreferenced.
VersionBuilder second_builder(env_options, &ioptions_, table_cache,
&new_vstorage, version_set);
VersionEdit second_edit;
second_edit.DeleteFile(/* level */ 0, /* file_number */ 1);
ASSERT_OK(second_builder.Apply(&second_edit));
VersionStorageInfo newer_vstorage(&icmp_, ucmp_, options_.num_levels,
kCompactionStyleLevel, &new_vstorage,
force_consistency_checks);
ASSERT_OK(second_builder.SaveTo(&newer_vstorage));
const auto& newer_blob_files = newer_vstorage.GetBlobFiles();
ASSERT_EQ(newer_blob_files.size(), 2);
const auto newer_meta1 = GetBlobFileMetaData(newer_blob_files, 1);
ASSERT_EQ(newer_meta1, nullptr);
UnrefFilesInVersion(&newer_vstorage);
UnrefFilesInVersion(&new_vstorage);
}
TEST_F(VersionBuilderTest, CheckConsistencyForBlobFiles) {
// Initialize base version. The first table file points to a valid blob file
// in this version; the second one does not refer to any blob files.
Add(/* level */ 1, /* file_number */ 1, /* smallest */ "150",
/* largest */ "200", /* file_size */ 100,
/* path_id */ 0, /* smallest_seq */ 100, /* largest_seq */ 100,
/* num_entries */ 0, /* num_deletions */ 0,
/* sampled */ false, /* smallest_seqno */ 100, /* largest_seqno */ 100,
/* oldest_blob_file_number */ 16);
Add(/* level */ 1, /* file_number */ 23, /* smallest */ "201",
/* largest */ "300", /* file_size */ 100,
/* path_id */ 0, /* smallest_seq */ 200, /* largest_seq */ 200,
/* num_entries */ 0, /* num_deletions */ 0,
/* sampled */ false, /* smallest_seqno */ 200, /* largest_seqno */ 200,
kInvalidBlobFileNumber);
AddBlob(/* blob_file_number */ 16, /* total_blob_count */ 1000,
/* total_blob_bytes */ 1000000,
/* checksum_method */ std::string(),
/* checksum_value */ std::string(), BlobFileMetaData::LinkedSsts{1},
/* garbage_blob_count */ 500, /* garbage_blob_bytes */ 300000);
UpdateVersionStorageInfo();
// Add a new table file that points to the existing blob file, and add a
// new table file--blob file pair.
EnvOptions env_options;
constexpr TableCache* table_cache = nullptr;
constexpr VersionSet* version_set = nullptr;
VersionBuilder builder(env_options, &ioptions_, table_cache, &vstorage_,
version_set);
VersionEdit edit;
edit.AddFile(/* level */ 1, /* file_number */ 606, /* path_id */ 0,
/* file_size */ 100, /* smallest */ GetInternalKey("701"),
/* largest */ GetInternalKey("750"), /* smallest_seqno */ 200,
/* largest_seqno */ 200, /* marked_for_compaction */ false,
/* oldest_blob_file_number */ 16, kUnknownOldestAncesterTime,
kUnknownFileCreationTime, kUnknownFileChecksum,
kUnknownFileChecksumFuncName);
edit.AddFile(/* level */ 1, /* file_number */ 700, /* path_id */ 0,
/* file_size */ 100, /* smallest */ GetInternalKey("801"),
/* largest */ GetInternalKey("850"), /* smallest_seqno */ 200,
/* largest_seqno */ 200, /* marked_for_compaction */ false,
/* oldest_blob_file_number */ 1000, kUnknownOldestAncesterTime,
kUnknownFileCreationTime, kUnknownFileChecksum,
kUnknownFileChecksumFuncName);
edit.AddBlobFile(/* blob_file_number */ 1000, /* total_blob_count */ 2000,
/* total_blob_bytes */ 200000,
/* checksum_method */ std::string(),
/* checksum_value */ std::string());
ASSERT_OK(builder.Apply(&edit));
// Save to a new version in order to trigger consistency checks.
constexpr bool force_consistency_checks = true;
VersionStorageInfo new_vstorage(&icmp_, ucmp_, options_.num_levels,
kCompactionStyleLevel, &vstorage_,
force_consistency_checks);
ASSERT_OK(builder.SaveTo(&new_vstorage));
UnrefFilesInVersion(&new_vstorage);
}
TEST_F(VersionBuilderTest, CheckConsistencyForBlobFilesInconsistentLinks) {
// Initialize base version. Links between the table file and the blob file
// are inconsistent.
Add(/* level */ 1, /* file_number */ 1, /* smallest */ "150",
/* largest */ "200", /* file_size */ 100,
/* path_id */ 0, /* smallest_seq */ 100, /* largest_seq */ 100,
/* num_entries */ 0, /* num_deletions */ 0,
/* sampled */ false, /* smallest_seqno */ 100, /* largest_seqno */ 100,
/* oldest_blob_file_number */ 256);
AddBlob(/* blob_file_number */ 16, /* total_blob_count */ 1000,
/* total_blob_bytes */ 1000000,
/* checksum_method */ std::string(),
/* checksum_value */ std::string(), BlobFileMetaData::LinkedSsts{1},
/* garbage_blob_count */ 500, /* garbage_blob_bytes */ 300000);
UpdateVersionStorageInfo();
EnvOptions env_options;
constexpr TableCache* table_cache = nullptr;
constexpr VersionSet* version_set = nullptr;
VersionBuilder builder(env_options, &ioptions_, table_cache, &vstorage_,
version_set);
// Save to a new version in order to trigger consistency checks.
constexpr bool force_consistency_checks = true;
VersionStorageInfo new_vstorage(&icmp_, ucmp_, options_.num_levels,
kCompactionStyleLevel, &vstorage_,
force_consistency_checks);
const Status s = builder.SaveTo(&new_vstorage);
ASSERT_TRUE(s.IsCorruption());
ASSERT_TRUE(std::strstr(
s.getState(),
"Links are inconsistent between table files and blob file #16"));
UnrefFilesInVersion(&new_vstorage);
}
TEST_F(VersionBuilderTest, CheckConsistencyForBlobFilesAllGarbage) {
// Initialize base version. The table file points to a blob file that is
// all garbage.
Add(/* level */ 1, /* file_number */ 1, /* smallest */ "150",
/* largest */ "200", /* file_size */ 100,
/* path_id */ 0, /* smallest_seq */ 100, /* largest_seq */ 100,
/* num_entries */ 0, /* num_deletions */ 0,
/* sampled */ false, /* smallest_seqno */ 100, /* largest_seqno */ 100,
/* oldest_blob_file_number */ 16);
AddBlob(/* blob_file_number */ 16, /* total_blob_count */ 1000,
/* total_blob_bytes */ 1000000,
/* checksum_method */ std::string(),
/* checksum_value */ std::string(), BlobFileMetaData::LinkedSsts{1},
/* garbage_blob_count */ 1000, /* garbage_blob_bytes */ 1000000);
UpdateVersionStorageInfo();
EnvOptions env_options;
constexpr TableCache* table_cache = nullptr;
constexpr VersionSet* version_set = nullptr;
VersionBuilder builder(env_options, &ioptions_, table_cache, &vstorage_,
version_set);
// Save to a new version in order to trigger consistency checks.
constexpr bool force_consistency_checks = true;
VersionStorageInfo new_vstorage(&icmp_, ucmp_, options_.num_levels,
kCompactionStyleLevel, &vstorage_,
force_consistency_checks);
const Status s = builder.SaveTo(&new_vstorage);
ASSERT_TRUE(s.IsCorruption());
ASSERT_TRUE(
std::strstr(s.getState(), "Blob file #16 consists entirely of garbage"));
UnrefFilesInVersion(&new_vstorage);
}
TEST_F(VersionBuilderTest, CheckConsistencyForBlobFilesAllGarbageLinkedSsts) {
// Initialize base version, with a table file pointing to a blob file
// that has no garbage at this point.
Add(/* level */ 1, /* file_number */ 1, /* smallest */ "150",
/* largest */ "200", /* file_size */ 100,
/* path_id */ 0, /* smallest_seq */ 100, /* largest_seq */ 100,
/* num_entries */ 0, /* num_deletions */ 0,
/* sampled */ false, /* smallest_seqno */ 100, /* largest_seqno */ 100,
/* oldest_blob_file_number */ 16);
AddBlob(/* blob_file_number */ 16, /* total_blob_count */ 1000,
/* total_blob_bytes */ 1000000,
/* checksum_method */ std::string(),
/* checksum_value */ std::string(), BlobFileMetaData::LinkedSsts{1},
/* garbage_blob_count */ 0, /* garbage_blob_bytes */ 0);
UpdateVersionStorageInfo();
// Mark the entire blob file garbage but do not remove the linked SST.
EnvOptions env_options;
constexpr TableCache* table_cache = nullptr;
constexpr VersionSet* version_set = nullptr;
VersionBuilder builder(env_options, &ioptions_, table_cache, &vstorage_,
version_set);
VersionEdit edit;
edit.AddBlobFileGarbage(/* blob_file_number */ 16,
/* garbage_blob_count */ 1000,
/* garbage_blob_bytes */ 1000000);
ASSERT_OK(builder.Apply(&edit));
// Save to a new version in order to trigger consistency checks.
constexpr bool force_consistency_checks = true;
VersionStorageInfo new_vstorage(&icmp_, ucmp_, options_.num_levels,
kCompactionStyleLevel, &vstorage_,
force_consistency_checks);
const Status s = builder.SaveTo(&new_vstorage);
ASSERT_TRUE(s.IsCorruption());
ASSERT_TRUE(
std::strstr(s.getState(), "Blob file #16 consists entirely of garbage"));
UnrefFilesInVersion(&new_vstorage);
}
TEST_F(VersionBuilderTest, MaintainLinkedSstsForBlobFiles) {
// Initialize base version. Table files 1..10 are linked to blob files 1..5,
// while table files 11..20 are not linked to any blob files.
for (uint64_t i = 1; i <= 10; ++i) {
std::ostringstream oss;
oss << std::setw(2) << std::setfill('0') << i;
const std::string key = oss.str();
Add(/* level */ 1, /* file_number */ i, /* smallest */ key.c_str(),
/* largest */ key.c_str(), /* file_size */ 100,
/* path_id */ 0, /* smallest_seq */ i * 100, /* largest_seq */ i * 100,
/* num_entries */ 0, /* num_deletions */ 0,
/* sampled */ false, /* smallest_seqno */ i * 100,
/* largest_seqno */ i * 100,
/* oldest_blob_file_number */ ((i - 1) % 5) + 1);
}
for (uint64_t i = 1; i <= 5; ++i) {
AddBlob(/* blob_file_number */ i, /* total_blob_count */ 2000,
/* total_blob_bytes */ 2000000,
/* checksum_method */ std::string(),
/* checksum_value */ std::string(),
BlobFileMetaData::LinkedSsts{i, i + 5},
/* garbage_blob_count */ 1000, /* garbage_blob_bytes */ 1000000);
}
for (uint64_t i = 11; i <= 20; ++i) {
std::ostringstream oss;
oss << std::setw(2) << std::setfill('0') << i;
const std::string key = oss.str();
Add(/* level */ 1, /* file_number */ i, /* smallest */ key.c_str(),
/* largest */ key.c_str(), /* file_size */ 100,
/* path_id */ 0, /* smallest_seq */ i * 100, /* largest_seq */ i * 100,
/* num_entries */ 0, /* num_deletions */ 0,
/* sampled */ false, /* smallest_seqno */ i * 100,
/* largest_seqno */ i * 100, kInvalidBlobFileNumber);
}
UpdateVersionStorageInfo();
{
const auto& blob_files = vstorage_.GetBlobFiles();
ASSERT_EQ(blob_files.size(), 5);
const std::vector<BlobFileMetaData::LinkedSsts> expected_linked_ssts{
{1, 6}, {2, 7}, {3, 8}, {4, 9}, {5, 10}};
for (size_t i = 0; i < 5; ++i) {
const auto meta =
GetBlobFileMetaData(blob_files, /* blob_file_number */ i + 1);
ASSERT_NE(meta, nullptr);
ASSERT_EQ(meta->GetLinkedSsts(), expected_linked_ssts[i]);
}
}
VersionEdit edit;
// Add an SST that references a blob file.
edit.AddFile(
/* level */ 1, /* file_number */ 21, /* path_id */ 0,
/* file_size */ 100, /* smallest */ GetInternalKey("21", 2100),
/* largest */ GetInternalKey("21", 2100), /* smallest_seqno */ 2100,
/* largest_seqno */ 2100, /* marked_for_compaction */ false,
/* oldest_blob_file_number */ 1, kUnknownOldestAncesterTime,
kUnknownFileCreationTime, kUnknownFileChecksum,
kUnknownFileChecksumFuncName);
// Add an SST that does not reference any blob files.
edit.AddFile(
/* level */ 1, /* file_number */ 22, /* path_id */ 0,
/* file_size */ 100, /* smallest */ GetInternalKey("22", 2200),
/* largest */ GetInternalKey("22", 2200), /* smallest_seqno */ 2200,
/* largest_seqno */ 2200, /* marked_for_compaction */ false,
kInvalidBlobFileNumber, kUnknownOldestAncesterTime,
kUnknownFileCreationTime, kUnknownFileChecksum,
kUnknownFileChecksumFuncName);
// Delete a file that references a blob file.
edit.DeleteFile(/* level */ 1, /* file_number */ 6);
// Delete a file that does not reference any blob files.
edit.DeleteFile(/* level */ 1, /* file_number */ 16);
// Trivially move a file that references a blob file. Note that we save
// the original BlobFileMetaData object so we can check that no new object
// gets created.
auto meta3 =
GetBlobFileMetaData(vstorage_.GetBlobFiles(), /* blob_file_number */ 3);
edit.DeleteFile(/* level */ 1, /* file_number */ 3);
edit.AddFile(/* level */ 2, /* file_number */ 3, /* path_id */ 0,
/* file_size */ 100, /* smallest */ GetInternalKey("03", 300),
/* largest */ GetInternalKey("03", 300),
/* smallest_seqno */ 300,
/* largest_seqno */ 300, /* marked_for_compaction */ false,
/* oldest_blob_file_number */ 3, kUnknownOldestAncesterTime,
kUnknownFileCreationTime, kUnknownFileChecksum,
kUnknownFileChecksumFuncName);
// Trivially move a file that does not reference any blob files.
edit.DeleteFile(/* level */ 1, /* file_number */ 13);
edit.AddFile(/* level */ 2, /* file_number */ 13, /* path_id */ 0,
/* file_size */ 100, /* smallest */ GetInternalKey("13", 1300),
/* largest */ GetInternalKey("13", 1300),
/* smallest_seqno */ 1300,
/* largest_seqno */ 1300, /* marked_for_compaction */ false,
kInvalidBlobFileNumber, kUnknownOldestAncesterTime,
kUnknownFileCreationTime, kUnknownFileChecksum,
kUnknownFileChecksumFuncName);
// Add one more SST file that references a blob file, then promptly
// delete it in a second version edit before the new version gets saved.
// This file should not show up as linked to the blob file in the new version.
edit.AddFile(/* level */ 1, /* file_number */ 23, /* path_id */ 0,
/* file_size */ 100, /* smallest */ GetInternalKey("23", 2300),
/* largest */ GetInternalKey("23", 2300),
/* smallest_seqno */ 2300,
/* largest_seqno */ 2300, /* marked_for_compaction */ false,
/* oldest_blob_file_number */ 5, kUnknownOldestAncesterTime,
kUnknownFileCreationTime, kUnknownFileChecksum,
kUnknownFileChecksumFuncName);
VersionEdit edit2;
edit2.DeleteFile(/* level */ 1, /* file_number */ 23);
EnvOptions env_options;
constexpr TableCache* table_cache = nullptr;
constexpr VersionSet* version_set = nullptr;
VersionBuilder builder(env_options, &ioptions_, table_cache, &vstorage_,
version_set);
ASSERT_OK(builder.Apply(&edit));
ASSERT_OK(builder.Apply(&edit2));
constexpr bool force_consistency_checks = true;
VersionStorageInfo new_vstorage(&icmp_, ucmp_, options_.num_levels,
kCompactionStyleLevel, &vstorage_,
force_consistency_checks);
ASSERT_OK(builder.SaveTo(&new_vstorage));
{
const auto& blob_files = new_vstorage.GetBlobFiles();
ASSERT_EQ(blob_files.size(), 5);
const std::vector<BlobFileMetaData::LinkedSsts> expected_linked_ssts{
{1, 21}, {2, 7}, {3, 8}, {4, 9}, {5, 10}};
for (size_t i = 0; i < 5; ++i) {
const auto meta =
GetBlobFileMetaData(blob_files, /* blob_file_number */ i + 1);
ASSERT_NE(meta, nullptr);
ASSERT_EQ(meta->GetLinkedSsts(), expected_linked_ssts[i]);
}
// Make sure that no new BlobFileMetaData got created for the blob file
// affected by the trivial move.
ASSERT_EQ(GetBlobFileMetaData(blob_files, /* blob_file_number */ 3), meta3);
}
UnrefFilesInVersion(&new_vstorage);
}
TEST_F(VersionBuilderTest, CheckConsistencyForFileDeletedTwice) {
Add(0, 1U, "150", "200", 100U);
UpdateVersionStorageInfo();
VersionEdit version_edit;
version_edit.DeleteFile(0, 1U);
EnvOptions env_options;
constexpr TableCache* table_cache = nullptr;
constexpr VersionSet* version_set = nullptr;
VersionBuilder version_builder(env_options, &ioptions_, table_cache,
&vstorage_, version_set);
VersionStorageInfo new_vstorage(&icmp_, ucmp_, options_.num_levels,
kCompactionStyleLevel, nullptr,
true /* force_consistency_checks */);
ASSERT_OK(version_builder.Apply(&version_edit));
ASSERT_OK(version_builder.SaveTo(&new_vstorage));
VersionBuilder version_builder2(env_options, &ioptions_, table_cache,
&new_vstorage, version_set);
VersionStorageInfo new_vstorage2(&icmp_, ucmp_, options_.num_levels,
kCompactionStyleLevel, nullptr,
true /* force_consistency_checks */);
ASSERT_NOK(version_builder2.Apply(&version_edit));
UnrefFilesInVersion(&new_vstorage);
UnrefFilesInVersion(&new_vstorage2);
}
TEST_F(VersionBuilderTest, EstimatedActiveKeys) {
const uint32_t kTotalSamples = 20;
const uint32_t kNumLevels = 5;
const uint32_t kFilesPerLevel = 8;
const uint32_t kNumFiles = kNumLevels * kFilesPerLevel;
const uint32_t kEntriesPerFile = 1000;
const uint32_t kDeletionsPerFile = 100;
for (uint32_t i = 0; i < kNumFiles; ++i) {
Add(static_cast<int>(i / kFilesPerLevel), i + 1,
ToString((i + 100) * 1000).c_str(),
ToString((i + 100) * 1000 + 999).c_str(),
100U, 0, 100, 100,
kEntriesPerFile, kDeletionsPerFile,
(i < kTotalSamples));
}
// minus 2X for the number of deletion entries because:
// 1x for deletion entry does not count as a data entry.
// 1x for each deletion entry will actually remove one data entry.
ASSERT_EQ(vstorage_.GetEstimatedActiveKeys(),
(kEntriesPerFile - 2 * kDeletionsPerFile) * kNumFiles);
}
} // namespace ROCKSDB_NAMESPACE
int main(int argc, char** argv) {
::testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}
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