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rocksdb/db/version_builder_test.cc
Levi Tamasi 78e291b17e Improve consistency checks in VersionBuilder (#6901) 
Summary:
The patch cleans up the code and improves the consistency checks around
adding/deleting table files in `VersionBuilder`. Namely, it makes the checks
stricter and improves them in the following ways:
1) A table file can now only be deleted from the LSM tree using the level it
resides on. Earlier, there was some unnecessary wiggle room for
trivially moved files (they could be deleted using a lower level number than
the actual one).
2) A table file cannot be added to the tree if it is already present in the tree
on any level (not just the target level). The earlier code only had an assertion
(which is a no-op in release builds) that the newly added file is not already
present on the target level.
3) The above consistency checks around state transitions are now mandatory,
as opposed to the earlier `CheckConsistencyForDeletes`, which was a no-op
in release mode unless `force_consistency_checks` was set to `true`. The rationale
here is that assuming that the initial state is consistent, a valid transition leads to a
next state that is also consistent; however, an *invalid* transition offers no such
guarantee. Hence it makes sense to validate the transitions unconditionally,
and save `force_consistency_checks` for the paranoid checks that re-validate
the entire state.
4) The new checks build on the mechanism introduced in https://github.com/facebook/rocksdb/pull/6862,
which enables us to efficiently look up the location (level and position within level)
of files in a `Version` by file number. This makes the consistency checks much more
efficient than the earlier `CheckConsistencyForDeletes`, which essentially
performed a linear search.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6901

Test Plan:
Extended the unit tests and ran:

`make check`
`make whitebox_crash_test`

Reviewed By: ajkr

Differential Revision: D21822714

Pulled By: ltamasi

fbshipit-source-id: e2b29c8b6da1bf0f59004acc889e4870b2d18215
2020-06-03 11:24:55 -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 <memory>
#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, 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), garbage_blob_count, garbage_blob_bytes);
vstorage_.AddBlobFile(std::move(meta));
}
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";
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 deletion;
deletion.DeleteFile(level, file_number);
ASSERT_OK(builder.Apply(&deletion));
VersionEdit addition;
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;
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));
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);
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->GetGarbageBlobCount(), 0);
ASSERT_EQ(new_meta->GetGarbageBlobBytes(), 0);
}
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, 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 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, garbage_blob_count, garbage_blob_bytes);
const auto meta =
GetBlobFileMetaData(vstorage_.GetBlobFiles(), blob_file_number);
ASSERT_NE(meta, nullptr);
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->GetGarbageBlobCount(),
garbage_blob_count + new_garbage_blob_count);
ASSERT_EQ(new_meta->GetGarbageBlobBytes(),
garbage_blob_bytes + new_garbage_blob_bytes);
}
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);
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->GetGarbageBlobCount(), garbage_blob_count);
ASSERT_EQ(new_meta->GetGarbageBlobBytes(), garbage_blob_bytes);
}
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 = 1; i <= 3; ++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(), 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;
// 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.
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);
// 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);
}
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(),
/* 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, CheckConsistencyForBlobFilesNotInVersion) {
// Initialize base version. The table file points to a blob file that is
// not in this version.
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(),
/* 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(), "Blob file #256 is not part of this version"));
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(),
/* 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, 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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