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rocksdb/db/corruption_test.cc
Peter Dillinger 230660be73 Improve / clean up meta block code & integrity (#9163) 
Summary:
* Checksums are now checked on meta blocks unless specifically
suppressed or not applicable (e.g. plain table). (Was other way around.)
This means a number of cases that were not checking checksums now are,
including direct read TableProperties in Version::GetTableProperties
(fixed in meta_blocks ReadTableProperties), reading any block from
PersistentCache (fixed in BlockFetcher), read TableProperties in
SstFileDumper (ldb/sst_dump/BackupEngine) before table reader open,
maybe more.
* For that to work, I moved the global_seqno+TableProperties checksum
logic to the shared table/ code, because that is used by many utilies
such as SstFileDumper.
* Also for that to work, we have to know when we're dealing with a block
that has a checksum (trailer), so added that capability to Footer based
on magic number, and from there BlockFetcher.
* Knowledge of trailer presence has also fixed a problem where other
table formats were reading blocks including bytes for a non-existant
trailer--and awkwardly kind-of not using them, e.g. no shared code
checking checksums. (BlockFetcher compression type was populated
incorrectly.) Now we only read what is needed.
* Minimized code duplication and differing/incompatible/awkward
abstractions in meta_blocks.{cc,h} (e.g. SeekTo in metaindex block
without parsing block handle)
* Moved some meta block handling code from table_properties*.*
* Moved some code specific to block-based table from shared table/ code
to BlockBasedTable class. The checksum stuff means we can't completely
separate it, but things that don't need to be in shared table/ code
should not be.
* Use unique_ptr rather than raw ptr in more places. (Note: you can
std::move from unique_ptr to shared_ptr.)

Without enhancements to GetPropertiesOfAllTablesTest (see below),
net reduction of roughly 100 lines of code.

Pull Request resolved: https://github.com/facebook/rocksdb/pull/9163

Test Plan:
existing tests and
* Enhanced DBTablePropertiesTest.GetPropertiesOfAllTablesTest to verify that
checksums are now checked on direct read of table properties by TableCache
(new test would fail before this change)
* Also enhanced DBTablePropertiesTest.GetPropertiesOfAllTablesTest to test
putting table properties under old meta name
* Also generally enhanced that same test to actually test what it was
supposed to be testing already, by kicking things out of table cache when
we don't want them there.

Reviewed By: ajkr, mrambacher

Differential Revision: D32514757

Pulled By: pdillinger

fbshipit-source-id: 507964b9311d186ae8d1131182290cbd97a99fa9
2021-11-18 11:43:44 -08:00

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// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
// This source code is licensed under both the GPLv2 (found in the
// COPYING file in the root directory) and Apache 2.0 License
// (found in the LICENSE.Apache file in the root directory).
//
// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file. See the AUTHORS file for names of contributors.
#ifndef ROCKSDB_LITE
#include <fcntl.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <cinttypes>
#include "db/db_impl/db_impl.h"
#include "db/db_test_util.h"
#include "db/log_format.h"
#include "db/version_set.h"
#include "file/filename.h"
#include "port/stack_trace.h"
#include "rocksdb/cache.h"
#include "rocksdb/convenience.h"
#include "rocksdb/db.h"
#include "rocksdb/env.h"
#include "rocksdb/table.h"
#include "rocksdb/write_batch.h"
#include "table/block_based/block_based_table_builder.h"
#include "table/meta_blocks.h"
#include "table/mock_table.h"
#include "test_util/testharness.h"
#include "test_util/testutil.h"
#include "util/cast_util.h"
#include "util/random.h"
#include "util/string_util.h"
namespace ROCKSDB_NAMESPACE {
static constexpr int kValueSize = 1000;
class CorruptionTest : public testing::Test {
public:
std::shared_ptr<Env> env_guard_;
test::ErrorEnv* env_;
std::string dbname_;
std::shared_ptr<Cache> tiny_cache_;
Options options_;
DB* db_;
CorruptionTest() {
// If LRU cache shard bit is smaller than 2 (or -1 which will automatically
// set it to 0), test SequenceNumberRecovery will fail, likely because of a
// bug in recovery code. Keep it 4 for now to make the test passes.
tiny_cache_ = NewLRUCache(100, 4);
Env* base_env = Env::Default();
EXPECT_OK(
test::CreateEnvFromSystem(ConfigOptions(), &base_env, &env_guard_));
EXPECT_NE(base_env, nullptr);
env_ = new test::ErrorEnv(base_env);
options_.wal_recovery_mode = WALRecoveryMode::kTolerateCorruptedTailRecords;
options_.env = env_;
dbname_ = test::PerThreadDBPath(env_, "corruption_test");
Status s = DestroyDB(dbname_, options_);
EXPECT_OK(s);
db_ = nullptr;
options_.create_if_missing = true;
BlockBasedTableOptions table_options;
table_options.block_size_deviation = 0; // make unit test pass for now
options_.table_factory.reset(NewBlockBasedTableFactory(table_options));
Reopen();
options_.create_if_missing = false;
}
~CorruptionTest() override {
SyncPoint::GetInstance()->DisableProcessing();
SyncPoint::GetInstance()->LoadDependency({});
SyncPoint::GetInstance()->ClearAllCallBacks();
delete db_;
db_ = nullptr;
if (getenv("KEEP_DB")) {
fprintf(stdout, "db is still at %s\n", dbname_.c_str());
} else {
Options opts;
opts.env = env_->target();
EXPECT_OK(DestroyDB(dbname_, opts));
}
delete env_;
}
void CloseDb() {
delete db_;
db_ = nullptr;
}
Status TryReopen(Options* options = nullptr) {
delete db_;
db_ = nullptr;
Options opt = (options ? *options : options_);
if (opt.env == Options().env) {
// If env is not overridden, replace it with ErrorEnv.
// Otherwise, the test already uses a non-default Env.
opt.env = env_;
}
opt.arena_block_size = 4096;
BlockBasedTableOptions table_options;
table_options.block_cache = tiny_cache_;
table_options.block_size_deviation = 0;
opt.table_factory.reset(NewBlockBasedTableFactory(table_options));
return DB::Open(opt, dbname_, &db_);
}
void Reopen(Options* options = nullptr) {
ASSERT_OK(TryReopen(options));
}
void RepairDB() {
delete db_;
db_ = nullptr;
ASSERT_OK(::ROCKSDB_NAMESPACE::RepairDB(dbname_, options_));
}
void Build(int n, int start, int flush_every) {
std::string key_space, value_space;
WriteBatch batch;
for (int i = 0; i < n; i++) {
if (flush_every != 0 && i != 0 && i % flush_every == 0) {
DBImpl* dbi = static_cast_with_check<DBImpl>(db_);
ASSERT_OK(dbi->TEST_FlushMemTable());
}
//if ((i % 100) == 0) fprintf(stderr, "@ %d of %d\n", i, n);
Slice key = Key(i + start, &key_space);
batch.Clear();
ASSERT_OK(batch.Put(key, Value(i + start, &value_space)));
ASSERT_OK(db_->Write(WriteOptions(), &batch));
}
}
void Build(int n, int flush_every = 0) { Build(n, 0, flush_every); }
void Check(int min_expected, int max_expected) {
uint64_t next_expected = 0;
uint64_t missed = 0;
int bad_keys = 0;
int bad_values = 0;
int correct = 0;
std::string value_space;
// Do not verify checksums. If we verify checksums then the
// db itself will raise errors because data is corrupted.
// Instead, we want the reads to be successful and this test
// will detect whether the appropriate corruptions have
// occurred.
Iterator* iter = db_->NewIterator(ReadOptions(false, true));
for (iter->SeekToFirst(); iter->Valid(); iter->Next()) {
ASSERT_OK(iter->status());
uint64_t key;
Slice in(iter->key());
if (!ConsumeDecimalNumber(&in, &key) ||
!in.empty() ||
key < next_expected) {
bad_keys++;
continue;
}
missed += (key - next_expected);
next_expected = key + 1;
if (iter->value() != Value(static_cast<int>(key), &value_space)) {
bad_values++;
} else {
correct++;
}
}
iter->status().PermitUncheckedError();
delete iter;
fprintf(stderr,
"expected=%d..%d; got=%d; bad_keys=%d; bad_values=%d; missed=%llu\n",
min_expected, max_expected, correct, bad_keys, bad_values,
static_cast<unsigned long long>(missed));
ASSERT_LE(min_expected, correct);
ASSERT_GE(max_expected, correct);
}
void Corrupt(FileType filetype, int offset, int bytes_to_corrupt) {
// Pick file to corrupt
std::vector<std::string> filenames;
ASSERT_OK(env_->GetChildren(dbname_, &filenames));
uint64_t number;
FileType type;
std::string fname;
int picked_number = -1;
for (size_t i = 0; i < filenames.size(); i++) {
if (ParseFileName(filenames[i], &number, &type) &&
type == filetype &&
static_cast<int>(number) > picked_number) { // Pick latest file
fname = dbname_ + "/" + filenames[i];
picked_number = static_cast<int>(number);
}
}
ASSERT_TRUE(!fname.empty()) << filetype;
ASSERT_OK(test::CorruptFile(env_, fname, offset, bytes_to_corrupt));
}
// corrupts exactly one file at level `level`. if no file found at level,
// asserts
void CorruptTableFileAtLevel(int level, int offset, int bytes_to_corrupt) {
std::vector<LiveFileMetaData> metadata;
db_->GetLiveFilesMetaData(&metadata);
for (const auto& m : metadata) {
if (m.level == level) {
ASSERT_OK(test::CorruptFile(env_, dbname_ + "/" + m.name, offset,
bytes_to_corrupt));
return;
}
}
FAIL() << "no file found at level";
}
int Property(const std::string& name) {
std::string property;
int result;
if (db_->GetProperty(name, &property) &&
sscanf(property.c_str(), "%d", &result) == 1) {
return result;
} else {
return -1;
}
}
// Return the ith key
Slice Key(int i, std::string* storage) {
char buf[100];
snprintf(buf, sizeof(buf), "%016d", i);
storage->assign(buf, strlen(buf));
return Slice(*storage);
}
// Return the value to associate with the specified key
Slice Value(int k, std::string* storage) {
if (k == 0) {
// Ugh. Random seed of 0 used to produce no entropy. This code
// preserves the implementation that was in place when all of the
// magic values in this file were picked.
*storage = std::string(kValueSize, ' ');
} else {
Random r(k);
*storage = r.RandomString(kValueSize);
}
return Slice(*storage);
}
};
TEST_F(CorruptionTest, Recovery) {
Build(100);
Check(100, 100);
#ifdef OS_WIN
// On Wndows OS Disk cache does not behave properly
// We do not call FlushBuffers on every Flush. If we do not close
// the log file prior to the corruption we end up with the first
// block not corrupted but only the second. However, under the debugger
// things work just fine but never pass when running normally
// For that reason people may want to run with unbuffered I/O. That option
// is not available for WAL though.
CloseDb();
#endif
Corrupt(kWalFile, 19, 1); // WriteBatch tag for first record
Corrupt(kWalFile, log::kBlockSize + 1000, 1); // Somewhere in second block
ASSERT_TRUE(!TryReopen().ok());
options_.paranoid_checks = false;
Reopen(&options_);
// The 64 records in the first two log blocks are completely lost.
Check(36, 36);
}
TEST_F(CorruptionTest, RecoverWriteError) {
env_->writable_file_error_ = true;
Status s = TryReopen();
ASSERT_TRUE(!s.ok());
}
TEST_F(CorruptionTest, NewFileErrorDuringWrite) {
// Do enough writing to force minor compaction
env_->writable_file_error_ = true;
const int num =
static_cast<int>(3 + (Options().write_buffer_size / kValueSize));
std::string value_storage;
Status s;
bool failed = false;
for (int i = 0; i < num; i++) {
WriteBatch batch;
ASSERT_OK(batch.Put("a", Value(100, &value_storage)));
s = db_->Write(WriteOptions(), &batch);
if (!s.ok()) {
failed = true;
}
ASSERT_TRUE(!failed || !s.ok());
}
ASSERT_TRUE(!s.ok());
ASSERT_GE(env_->num_writable_file_errors_, 1);
env_->writable_file_error_ = false;
Reopen();
}
TEST_F(CorruptionTest, TableFile) {
Build(100);
DBImpl* dbi = static_cast_with_check<DBImpl>(db_);
ASSERT_OK(dbi->TEST_FlushMemTable());
ASSERT_OK(dbi->TEST_CompactRange(0, nullptr, nullptr));
ASSERT_OK(dbi->TEST_CompactRange(1, nullptr, nullptr));
Corrupt(kTableFile, 100, 1);
Check(99, 99);
ASSERT_NOK(dbi->VerifyChecksum());
}
TEST_F(CorruptionTest, VerifyChecksumReadahead) {
Options options;
SpecialEnv senv(env_->target());
options.env = &senv;
// Disable block cache as we are going to check checksum for
// the same file twice and measure number of reads.
BlockBasedTableOptions table_options_no_bc;
table_options_no_bc.no_block_cache = true;
options.table_factory.reset(NewBlockBasedTableFactory(table_options_no_bc));
Reopen(&options);
Build(10000);
DBImpl* dbi = static_cast_with_check<DBImpl>(db_);
ASSERT_OK(dbi->TEST_FlushMemTable());
ASSERT_OK(dbi->TEST_CompactRange(0, nullptr, nullptr));
ASSERT_OK(dbi->TEST_CompactRange(1, nullptr, nullptr));
senv.count_random_reads_ = true;
senv.random_read_counter_.Reset();
ASSERT_OK(dbi->VerifyChecksum());
// Make sure the counter is enabled.
ASSERT_GT(senv.random_read_counter_.Read(), 0);
// The SST file is about 10MB. Default readahead size is 256KB.
// Give a conservative 20 reads for metadata blocks, The number
// of random reads should be within 10 MB / 256KB + 20 = 60.
ASSERT_LT(senv.random_read_counter_.Read(), 60);
senv.random_read_bytes_counter_ = 0;
ReadOptions ro;
ro.readahead_size = size_t{32 * 1024};
ASSERT_OK(dbi->VerifyChecksum(ro));
// The SST file is about 10MB. We set readahead size to 32KB.
// Give 0 to 20 reads for metadata blocks, and allow real read
// to range from 24KB to 48KB. The lower bound would be:
// 10MB / 48KB + 0 = 213
// The higher bound is
// 10MB / 24KB + 20 = 447.
ASSERT_GE(senv.random_read_counter_.Read(), 213);
ASSERT_LE(senv.random_read_counter_.Read(), 447);
// Test readahead shouldn't break mmap mode (where it should be
// disabled).
options.allow_mmap_reads = true;
Reopen(&options);
dbi = static_cast<DBImpl*>(db_);
ASSERT_OK(dbi->VerifyChecksum(ro));
CloseDb();
}
TEST_F(CorruptionTest, TableFileIndexData) {
Options options;
// very big, we'll trigger flushes manually
options.write_buffer_size = 100 * 1024 * 1024;
Reopen(&options);
// build 2 tables, flush at 5000
Build(10000, 5000);
DBImpl* dbi = static_cast_with_check<DBImpl>(db_);
ASSERT_OK(dbi->TEST_FlushMemTable());
// corrupt an index block of an entire file
Corrupt(kTableFile, -2000, 500);
options.paranoid_checks = false;
Reopen(&options);
dbi = static_cast_with_check<DBImpl>(db_);
// one full file may be readable, since only one was corrupted
// the other file should be fully non-readable, since index was corrupted
Check(0, 5000);
ASSERT_NOK(dbi->VerifyChecksum());
// In paranoid mode, the db cannot be opened due to the corrupted file.
ASSERT_TRUE(TryReopen().IsCorruption());
}
TEST_F(CorruptionTest, MissingDescriptor) {
Build(1000);
RepairDB();
Reopen();
Check(1000, 1000);
}
TEST_F(CorruptionTest, SequenceNumberRecovery) {
ASSERT_OK(db_->Put(WriteOptions(), "foo", "v1"));
ASSERT_OK(db_->Put(WriteOptions(), "foo", "v2"));
ASSERT_OK(db_->Put(WriteOptions(), "foo", "v3"));
ASSERT_OK(db_->Put(WriteOptions(), "foo", "v4"));
ASSERT_OK(db_->Put(WriteOptions(), "foo", "v5"));
RepairDB();
Reopen();
std::string v;
ASSERT_OK(db_->Get(ReadOptions(), "foo", &v));
ASSERT_EQ("v5", v);
// Write something. If sequence number was not recovered properly,
// it will be hidden by an earlier write.
ASSERT_OK(db_->Put(WriteOptions(), "foo", "v6"));
ASSERT_OK(db_->Get(ReadOptions(), "foo", &v));
ASSERT_EQ("v6", v);
Reopen();
ASSERT_OK(db_->Get(ReadOptions(), "foo", &v));
ASSERT_EQ("v6", v);
}
TEST_F(CorruptionTest, CorruptedDescriptor) {
ASSERT_OK(db_->Put(WriteOptions(), "foo", "hello"));
DBImpl* dbi = static_cast_with_check<DBImpl>(db_);
ASSERT_OK(dbi->TEST_FlushMemTable());
ASSERT_OK(dbi->TEST_CompactRange(0, nullptr, nullptr));
Corrupt(kDescriptorFile, 0, 1000);
Status s = TryReopen();
ASSERT_TRUE(!s.ok());
RepairDB();
Reopen();
std::string v;
ASSERT_OK(db_->Get(ReadOptions(), "foo", &v));
ASSERT_EQ("hello", v);
}
TEST_F(CorruptionTest, CompactionInputError) {
Options options;
options.env = env_;
Reopen(&options);
Build(10);
DBImpl* dbi = static_cast_with_check<DBImpl>(db_);
ASSERT_OK(dbi->TEST_FlushMemTable());
ASSERT_OK(dbi->TEST_CompactRange(0, nullptr, nullptr));
ASSERT_OK(dbi->TEST_CompactRange(1, nullptr, nullptr));
ASSERT_EQ(1, Property("rocksdb.num-files-at-level2"));
Corrupt(kTableFile, 100, 1);
Check(9, 9);
ASSERT_NOK(dbi->VerifyChecksum());
// Force compactions by writing lots of values
Build(10000);
Check(10000, 10000);
ASSERT_NOK(dbi->VerifyChecksum());
}
TEST_F(CorruptionTest, CompactionInputErrorParanoid) {
Options options;
options.env = env_;
options.paranoid_checks = true;
options.write_buffer_size = 131072;
options.max_write_buffer_number = 2;
Reopen(&options);
DBImpl* dbi = static_cast_with_check<DBImpl>(db_);
// Fill levels >= 1
for (int level = 1; level < dbi->NumberLevels(); level++) {
ASSERT_OK(dbi->Put(WriteOptions(), "", "begin"));
ASSERT_OK(dbi->Put(WriteOptions(), "~", "end"));
ASSERT_OK(dbi->TEST_FlushMemTable());
for (int comp_level = 0; comp_level < dbi->NumberLevels() - level;
++comp_level) {
ASSERT_OK(dbi->TEST_CompactRange(comp_level, nullptr, nullptr));
}
}
Reopen(&options);
dbi = static_cast_with_check<DBImpl>(db_);
Build(10);
ASSERT_OK(dbi->TEST_FlushMemTable());
ASSERT_OK(dbi->TEST_WaitForCompact());
ASSERT_EQ(1, Property("rocksdb.num-files-at-level0"));
CorruptTableFileAtLevel(0, 100, 1);
Check(9, 9);
ASSERT_NOK(dbi->VerifyChecksum());
// Write must eventually fail because of corrupted table
Status s;
std::string tmp1, tmp2;
bool failed = false;
for (int i = 0; i < 10000; i++) {
s = db_->Put(WriteOptions(), Key(i, &tmp1), Value(i, &tmp2));
if (!s.ok()) {
failed = true;
}
// if one write failed, every subsequent write must fail, too
ASSERT_TRUE(!failed || !s.ok()) << "write did not fail in a corrupted db";
}
ASSERT_TRUE(!s.ok()) << "write did not fail in corrupted paranoid db";
}
TEST_F(CorruptionTest, UnrelatedKeys) {
Build(10);
DBImpl* dbi = static_cast_with_check<DBImpl>(db_);
ASSERT_OK(dbi->TEST_FlushMemTable());
Corrupt(kTableFile, 100, 1);
ASSERT_NOK(dbi->VerifyChecksum());
std::string tmp1, tmp2;
ASSERT_OK(db_->Put(WriteOptions(), Key(1000, &tmp1), Value(1000, &tmp2)));
std::string v;
ASSERT_OK(db_->Get(ReadOptions(), Key(1000, &tmp1), &v));
ASSERT_EQ(Value(1000, &tmp2).ToString(), v);
ASSERT_OK(dbi->TEST_FlushMemTable());
ASSERT_OK(db_->Get(ReadOptions(), Key(1000, &tmp1), &v));
ASSERT_EQ(Value(1000, &tmp2).ToString(), v);
}
TEST_F(CorruptionTest, RangeDeletionCorrupted) {
ASSERT_OK(
db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(), "a", "b"));
ASSERT_OK(db_->Flush(FlushOptions()));
std::vector<LiveFileMetaData> metadata;
db_->GetLiveFilesMetaData(&metadata);
ASSERT_EQ(static_cast<size_t>(1), metadata.size());
std::string filename = dbname_ + metadata[0].name;
FileOptions file_opts;
const auto& fs = options_.env->GetFileSystem();
std::unique_ptr<RandomAccessFileReader> file_reader;
ASSERT_OK(RandomAccessFileReader::Create(fs, filename, file_opts,
&file_reader, nullptr));
uint64_t file_size;
ASSERT_OK(
fs->GetFileSize(filename, file_opts.io_options, &file_size, nullptr));
BlockHandle range_del_handle;
ASSERT_OK(FindMetaBlockInFile(
file_reader.get(), file_size, kBlockBasedTableMagicNumber,
ImmutableOptions(options_), kRangeDelBlock, &range_del_handle));
ASSERT_OK(TryReopen());
ASSERT_OK(test::CorruptFile(env_, filename,
static_cast<int>(range_del_handle.offset()), 1));
ASSERT_TRUE(TryReopen().IsCorruption());
}
TEST_F(CorruptionTest, FileSystemStateCorrupted) {
for (int iter = 0; iter < 2; ++iter) {
Options options;
options.env = env_;
options.paranoid_checks = true;
options.create_if_missing = true;
Reopen(&options);
Build(10);
ASSERT_OK(db_->Flush(FlushOptions()));
DBImpl* dbi = static_cast_with_check<DBImpl>(db_);
std::vector<LiveFileMetaData> metadata;
dbi->GetLiveFilesMetaData(&metadata);
ASSERT_GT(metadata.size(), 0);
std::string filename = dbname_ + metadata[0].name;
delete db_;
db_ = nullptr;
if (iter == 0) { // corrupt file size
std::unique_ptr<WritableFile> file;
ASSERT_OK(env_->NewWritableFile(filename, &file, EnvOptions()));
ASSERT_OK(file->Append(Slice("corrupted sst")));
file.reset();
Status x = TryReopen(&options);
ASSERT_TRUE(x.IsCorruption());
} else { // delete the file
ASSERT_OK(env_->DeleteFile(filename));
Status x = TryReopen(&options);
ASSERT_TRUE(x.IsCorruption());
}
ASSERT_OK(DestroyDB(dbname_, options_));
}
}
static const auto& corruption_modes = {
mock::MockTableFactory::kCorruptNone, mock::MockTableFactory::kCorruptKey,
mock::MockTableFactory::kCorruptValue,
mock::MockTableFactory::kCorruptReorderKey};
TEST_F(CorruptionTest, ParanoidFileChecksOnFlush) {
Options options;
options.env = env_;
options.check_flush_compaction_key_order = false;
options.paranoid_file_checks = true;
options.create_if_missing = true;
Status s;
for (const auto& mode : corruption_modes) {
delete db_;
db_ = nullptr;
s = DestroyDB(dbname_, options);
ASSERT_OK(s);
std::shared_ptr<mock::MockTableFactory> mock =
std::make_shared<mock::MockTableFactory>();
options.table_factory = mock;
mock->SetCorruptionMode(mode);
ASSERT_OK(DB::Open(options, dbname_, &db_));
assert(db_ != nullptr); // suppress false clang-analyze report
Build(10);
s = db_->Flush(FlushOptions());
if (mode == mock::MockTableFactory::kCorruptNone) {
ASSERT_OK(s);
} else {
ASSERT_NOK(s);
}
}
}
TEST_F(CorruptionTest, ParanoidFileChecksOnCompact) {
Options options;
options.env = env_;
options.paranoid_file_checks = true;
options.create_if_missing = true;
options.check_flush_compaction_key_order = false;
Status s;
for (const auto& mode : corruption_modes) {
delete db_;
db_ = nullptr;
s = DestroyDB(dbname_, options);
std::shared_ptr<mock::MockTableFactory> mock =
std::make_shared<mock::MockTableFactory>();
options.table_factory = mock;
ASSERT_OK(DB::Open(options, dbname_, &db_));
assert(db_ != nullptr); // suppress false clang-analyze report
Build(100, 2);
// ASSERT_OK(db_->Flush(FlushOptions()));
DBImpl* dbi = static_cast_with_check<DBImpl>(db_);
ASSERT_OK(dbi->TEST_FlushMemTable());
mock->SetCorruptionMode(mode);
s = dbi->TEST_CompactRange(0, nullptr, nullptr, nullptr, true);
if (mode == mock::MockTableFactory::kCorruptNone) {
ASSERT_OK(s);
} else {
ASSERT_NOK(s);
}
}
}
TEST_F(CorruptionTest, ParanoidFileChecksWithDeleteRangeFirst) {
Options options;
options.env = env_;
options.check_flush_compaction_key_order = false;
options.paranoid_file_checks = true;
options.create_if_missing = true;
for (bool do_flush : {true, false}) {
delete db_;
db_ = nullptr;
ASSERT_OK(DestroyDB(dbname_, options));
ASSERT_OK(DB::Open(options, dbname_, &db_));
std::string start, end;
assert(db_ != nullptr); // suppress false clang-analyze report
ASSERT_OK(db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(),
Key(3, &start), Key(7, &end)));
auto snap = db_->GetSnapshot();
ASSERT_NE(snap, nullptr);
ASSERT_OK(db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(),
Key(8, &start), Key(9, &end)));
ASSERT_OK(db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(),
Key(2, &start), Key(5, &end)));
Build(10);
if (do_flush) {
ASSERT_OK(db_->Flush(FlushOptions()));
} else {
DBImpl* dbi = static_cast_with_check<DBImpl>(db_);
ASSERT_OK(dbi->TEST_FlushMemTable());
ASSERT_OK(dbi->TEST_CompactRange(0, nullptr, nullptr, nullptr, true));
}
db_->ReleaseSnapshot(snap);
}
}
TEST_F(CorruptionTest, ParanoidFileChecksWithDeleteRange) {
Options options;
options.env = env_;
options.check_flush_compaction_key_order = false;
options.paranoid_file_checks = true;
options.create_if_missing = true;
for (bool do_flush : {true, false}) {
delete db_;
db_ = nullptr;
ASSERT_OK(DestroyDB(dbname_, options));
ASSERT_OK(DB::Open(options, dbname_, &db_));
assert(db_ != nullptr); // suppress false clang-analyze report
Build(10, 0, 0);
std::string start, end;
ASSERT_OK(db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(),
Key(5, &start), Key(15, &end)));
auto snap = db_->GetSnapshot();
ASSERT_NE(snap, nullptr);
ASSERT_OK(db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(),
Key(8, &start), Key(9, &end)));
ASSERT_OK(db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(),
Key(12, &start), Key(17, &end)));
ASSERT_OK(db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(),
Key(2, &start), Key(4, &end)));
Build(10, 10, 0);
if (do_flush) {
ASSERT_OK(db_->Flush(FlushOptions()));
} else {
DBImpl* dbi = static_cast_with_check<DBImpl>(db_);
ASSERT_OK(dbi->TEST_FlushMemTable());
ASSERT_OK(dbi->TEST_CompactRange(0, nullptr, nullptr, nullptr, true));
}
db_->ReleaseSnapshot(snap);
}
}
TEST_F(CorruptionTest, ParanoidFileChecksWithDeleteRangeLast) {
Options options;
options.env = env_;
options.check_flush_compaction_key_order = false;
options.paranoid_file_checks = true;
options.create_if_missing = true;
for (bool do_flush : {true, false}) {
delete db_;
db_ = nullptr;
ASSERT_OK(DestroyDB(dbname_, options));
ASSERT_OK(DB::Open(options, dbname_, &db_));
assert(db_ != nullptr); // suppress false clang-analyze report
std::string start, end;
Build(10);
ASSERT_OK(db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(),
Key(3, &start), Key(7, &end)));
auto snap = db_->GetSnapshot();
ASSERT_NE(snap, nullptr);
ASSERT_OK(db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(),
Key(6, &start), Key(8, &end)));
ASSERT_OK(db_->DeleteRange(WriteOptions(), db_->DefaultColumnFamily(),
Key(2, &start), Key(5, &end)));
if (do_flush) {
ASSERT_OK(db_->Flush(FlushOptions()));
} else {
DBImpl* dbi = static_cast_with_check<DBImpl>(db_);
ASSERT_OK(dbi->TEST_FlushMemTable());
ASSERT_OK(dbi->TEST_CompactRange(0, nullptr, nullptr, nullptr, true));
}
db_->ReleaseSnapshot(snap);
}
}
TEST_F(CorruptionTest, LogCorruptionErrorsInCompactionIterator) {
Options options;
options.env = env_;
options.create_if_missing = true;
options.allow_data_in_errors = true;
auto mode = mock::MockTableFactory::kCorruptKey;
delete db_;
db_ = nullptr;
ASSERT_OK(DestroyDB(dbname_, options));
std::shared_ptr<mock::MockTableFactory> mock =
std::make_shared<mock::MockTableFactory>();
mock->SetCorruptionMode(mode);
options.table_factory = mock;
ASSERT_OK(DB::Open(options, dbname_, &db_));
assert(db_ != nullptr); // suppress false clang-analyze report
Build(100, 2);
DBImpl* dbi = static_cast_with_check<DBImpl>(db_);
ASSERT_OK(dbi->TEST_FlushMemTable());
Status s = dbi->TEST_CompactRange(0, nullptr, nullptr, nullptr, true);
ASSERT_NOK(s);
ASSERT_TRUE(s.IsCorruption());
}
TEST_F(CorruptionTest, CompactionKeyOrderCheck) {
Options options;
options.env = env_;
options.paranoid_file_checks = false;
options.create_if_missing = true;
options.check_flush_compaction_key_order = false;
delete db_;
db_ = nullptr;
ASSERT_OK(DestroyDB(dbname_, options));
std::shared_ptr<mock::MockTableFactory> mock =
std::make_shared<mock::MockTableFactory>();
options.table_factory = mock;
ASSERT_OK(DB::Open(options, dbname_, &db_));
assert(db_ != nullptr); // suppress false clang-analyze report
mock->SetCorruptionMode(mock::MockTableFactory::kCorruptReorderKey);
Build(100, 2);
DBImpl* dbi = static_cast_with_check<DBImpl>(db_);
ASSERT_OK(dbi->TEST_FlushMemTable());
mock->SetCorruptionMode(mock::MockTableFactory::kCorruptNone);
ASSERT_OK(db_->SetOptions({{"check_flush_compaction_key_order", "true"}}));
ASSERT_NOK(dbi->TEST_CompactRange(0, nullptr, nullptr, nullptr, true));
}
TEST_F(CorruptionTest, FlushKeyOrderCheck) {
Options options;
options.env = env_;
options.paranoid_file_checks = false;
options.create_if_missing = true;
ASSERT_OK(db_->SetOptions({{"check_flush_compaction_key_order", "true"}}));
ASSERT_OK(db_->Put(WriteOptions(), "foo1", "v1"));
ASSERT_OK(db_->Put(WriteOptions(), "foo2", "v1"));
ASSERT_OK(db_->Put(WriteOptions(), "foo3", "v1"));
ASSERT_OK(db_->Put(WriteOptions(), "foo4", "v1"));
int cnt = 0;
// Generate some out of order keys from the memtable
SyncPoint::GetInstance()->SetCallBack(
"MemTableIterator::Next:0", [&](void* arg) {
MemTableRep::Iterator* mem_iter =
static_cast<MemTableRep::Iterator*>(arg);
if (++cnt == 3) {
mem_iter->Prev();
mem_iter->Prev();
}
});
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
Status s = static_cast_with_check<DBImpl>(db_)->TEST_FlushMemTable();
ASSERT_NOK(s);
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->ClearAllCallBacks();
}
TEST_F(CorruptionTest, DisableKeyOrderCheck) {
ASSERT_OK(db_->SetOptions({{"check_flush_compaction_key_order", "false"}}));
DBImpl* dbi = static_cast_with_check<DBImpl>(db_);
SyncPoint::GetInstance()->SetCallBack(
"OutputValidator::Add:order_check",
[&](void* /*arg*/) { ASSERT_TRUE(false); });
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
ASSERT_OK(db_->Put(WriteOptions(), "foo1", "v1"));
ASSERT_OK(db_->Put(WriteOptions(), "foo3", "v1"));
ASSERT_OK(dbi->TEST_FlushMemTable());
ASSERT_OK(db_->Put(WriteOptions(), "foo2", "v1"));
ASSERT_OK(db_->Put(WriteOptions(), "foo4", "v1"));
ASSERT_OK(dbi->TEST_FlushMemTable());
ASSERT_OK(dbi->TEST_CompactRange(0, nullptr, nullptr, nullptr, true));
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->ClearAllCallBacks();
}
TEST_F(CorruptionTest, VerifyWholeTableChecksum) {
CloseDb();
Options options;
options.env = env_;
ASSERT_OK(DestroyDB(dbname_, options));
options.create_if_missing = true;
options.file_checksum_gen_factory =
ROCKSDB_NAMESPACE::GetFileChecksumGenCrc32cFactory();
Reopen(&options);
Build(10, 5);
ASSERT_OK(db_->VerifyFileChecksums(ReadOptions()));
CloseDb();
// Corrupt the first byte of each table file, this must be data block.
Corrupt(kTableFile, 0, 1);
ASSERT_OK(TryReopen(&options));
SyncPoint::GetInstance()->DisableProcessing();
SyncPoint::GetInstance()->ClearAllCallBacks();
int count{0};
SyncPoint::GetInstance()->SetCallBack(
"DBImpl::VerifyFullFileChecksum:mismatch", [&](void* arg) {
auto* s = reinterpret_cast<Status*>(arg);
ASSERT_NE(s, nullptr);
++count;
ASSERT_NOK(*s);
});
SyncPoint::GetInstance()->EnableProcessing();
ASSERT_TRUE(db_->VerifyFileChecksums(ReadOptions()).IsCorruption());
ASSERT_EQ(1, count);
}
} // namespace ROCKSDB_NAMESPACE
int main(int argc, char** argv) {
ROCKSDB_NAMESPACE::port::InstallStackTraceHandler();
::testing::InitGoogleTest(&argc, argv);
RegisterCustomObjects(argc, argv);
return RUN_ALL_TESTS();
}
#else
#include <stdio.h>
int main(int /*argc*/, char** /*argv*/) {
fprintf(stderr, "SKIPPED as RepairDB() is not supported in ROCKSDB_LITE\n");
return 0;
}
#endif // !ROCKSDB_LITE
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