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rocksdb/db/db_wal_test.cc
Maysam Yabandeh 18dcf7f98d WritePrepared Txn: PreReleaseCallback 
Summary:
Add PreReleaseCallback to be called at the end of WriteImpl but before publishing the sequence number. The callback is used in WritePrepareTxn to i) update the commit map, ii) update the last published sequence number in the 2nd write queue. It also ensures that all the commits will go to the 2nd queue.
These changes will ensure that the commit map is updated before the sequence number is published and used by reading snapshots. If we use two write queues, the snapshots will use the seq number published by the 2nd queue. If we use one write queue (the default, the snapshots will use the last seq number in the memtable, which also indicates the last published seq number.
Closes https://github.com/facebook/rocksdb/pull/3205

Differential Revision: D6438959

Pulled By: maysamyabandeh

fbshipit-source-id: f8b6c434e94bc5f5ab9cb696879d4c23e2577ab9
2017-11-30 23:50:45 -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.
#include "db/db_test_util.h"
#include "options/options_helper.h"
#include "port/port.h"
#include "port/stack_trace.h"
#include "util/fault_injection_test_env.h"
#include "util/sync_point.h"
namespace rocksdb {
class DBWALTest : public DBTestBase {
public:
DBWALTest() : DBTestBase("/db_wal_test") {}
};
TEST_F(DBWALTest, WAL) {
do {
CreateAndReopenWithCF({"pikachu"}, CurrentOptions());
WriteOptions writeOpt = WriteOptions();
writeOpt.disableWAL = true;
ASSERT_OK(dbfull()->Put(writeOpt, handles_[1], "foo", "v1"));
ASSERT_OK(dbfull()->Put(writeOpt, handles_[1], "bar", "v1"));
ReopenWithColumnFamilies({"default", "pikachu"}, CurrentOptions());
ASSERT_EQ("v1", Get(1, "foo"));
ASSERT_EQ("v1", Get(1, "bar"));
writeOpt.disableWAL = false;
ASSERT_OK(dbfull()->Put(writeOpt, handles_[1], "bar", "v2"));
writeOpt.disableWAL = true;
ASSERT_OK(dbfull()->Put(writeOpt, handles_[1], "foo", "v2"));
ReopenWithColumnFamilies({"default", "pikachu"}, CurrentOptions());
// Both value's should be present.
ASSERT_EQ("v2", Get(1, "bar"));
ASSERT_EQ("v2", Get(1, "foo"));
writeOpt.disableWAL = true;
ASSERT_OK(dbfull()->Put(writeOpt, handles_[1], "bar", "v3"));
writeOpt.disableWAL = false;
ASSERT_OK(dbfull()->Put(writeOpt, handles_[1], "foo", "v3"));
ReopenWithColumnFamilies({"default", "pikachu"}, CurrentOptions());
// again both values should be present.
ASSERT_EQ("v3", Get(1, "foo"));
ASSERT_EQ("v3", Get(1, "bar"));
} while (ChangeWalOptions());
}
TEST_F(DBWALTest, RollLog) {
do {
CreateAndReopenWithCF({"pikachu"}, CurrentOptions());
ASSERT_OK(Put(1, "foo", "v1"));
ASSERT_OK(Put(1, "baz", "v5"));
ReopenWithColumnFamilies({"default", "pikachu"}, CurrentOptions());
for (int i = 0; i < 10; i++) {
ReopenWithColumnFamilies({"default", "pikachu"}, CurrentOptions());
}
ASSERT_OK(Put(1, "foo", "v4"));
for (int i = 0; i < 10; i++) {
ReopenWithColumnFamilies({"default", "pikachu"}, CurrentOptions());
}
} while (ChangeWalOptions());
}
TEST_F(DBWALTest, SyncWALNotBlockWrite) {
Options options = CurrentOptions();
options.max_write_buffer_number = 4;
DestroyAndReopen(options);
ASSERT_OK(Put("foo1", "bar1"));
ASSERT_OK(Put("foo5", "bar5"));
rocksdb::SyncPoint::GetInstance()->LoadDependency({
{"WritableFileWriter::SyncWithoutFlush:1",
"DBWALTest::SyncWALNotBlockWrite:1"},
{"DBWALTest::SyncWALNotBlockWrite:2",
"WritableFileWriter::SyncWithoutFlush:2"},
});
rocksdb::SyncPoint::GetInstance()->EnableProcessing();
rocksdb::port::Thread thread([&]() { ASSERT_OK(db_->SyncWAL()); });
TEST_SYNC_POINT("DBWALTest::SyncWALNotBlockWrite:1");
ASSERT_OK(Put("foo2", "bar2"));
ASSERT_OK(Put("foo3", "bar3"));
FlushOptions fo;
fo.wait = false;
ASSERT_OK(db_->Flush(fo));
ASSERT_OK(Put("foo4", "bar4"));
TEST_SYNC_POINT("DBWALTest::SyncWALNotBlockWrite:2");
thread.join();
ASSERT_EQ(Get("foo1"), "bar1");
ASSERT_EQ(Get("foo2"), "bar2");
ASSERT_EQ(Get("foo3"), "bar3");
ASSERT_EQ(Get("foo4"), "bar4");
ASSERT_EQ(Get("foo5"), "bar5");
rocksdb::SyncPoint::GetInstance()->DisableProcessing();
}
TEST_F(DBWALTest, SyncWALNotWaitWrite) {
ASSERT_OK(Put("foo1", "bar1"));
ASSERT_OK(Put("foo3", "bar3"));
rocksdb::SyncPoint::GetInstance()->LoadDependency({
{"SpecialEnv::WalFile::Append:1", "DBWALTest::SyncWALNotWaitWrite:1"},
{"DBWALTest::SyncWALNotWaitWrite:2", "SpecialEnv::WalFile::Append:2"},
});
rocksdb::SyncPoint::GetInstance()->EnableProcessing();
rocksdb::port::Thread thread([&]() { ASSERT_OK(Put("foo2", "bar2")); });
// Moving this to SyncWAL before the actual fsync
// TEST_SYNC_POINT("DBWALTest::SyncWALNotWaitWrite:1");
ASSERT_OK(db_->SyncWAL());
// Moving this to SyncWAL after actual fsync
// TEST_SYNC_POINT("DBWALTest::SyncWALNotWaitWrite:2");
thread.join();
ASSERT_EQ(Get("foo1"), "bar1");
ASSERT_EQ(Get("foo2"), "bar2");
rocksdb::SyncPoint::GetInstance()->DisableProcessing();
}
TEST_F(DBWALTest, Recover) {
do {
CreateAndReopenWithCF({"pikachu"}, CurrentOptions());
ASSERT_OK(Put(1, "foo", "v1"));
ASSERT_OK(Put(1, "baz", "v5"));
ReopenWithColumnFamilies({"default", "pikachu"}, CurrentOptions());
ASSERT_EQ("v1", Get(1, "foo"));
ASSERT_EQ("v1", Get(1, "foo"));
ASSERT_EQ("v5", Get(1, "baz"));
ASSERT_OK(Put(1, "bar", "v2"));
ASSERT_OK(Put(1, "foo", "v3"));
ReopenWithColumnFamilies({"default", "pikachu"}, CurrentOptions());
ASSERT_EQ("v3", Get(1, "foo"));
ASSERT_OK(Put(1, "foo", "v4"));
ASSERT_EQ("v4", Get(1, "foo"));
ASSERT_EQ("v2", Get(1, "bar"));
ASSERT_EQ("v5", Get(1, "baz"));
} while (ChangeWalOptions());
}
TEST_F(DBWALTest, RecoverWithTableHandle) {
do {
Options options = CurrentOptions();
options.create_if_missing = true;
options.disable_auto_compactions = true;
options.avoid_flush_during_recovery = false;
DestroyAndReopen(options);
CreateAndReopenWithCF({"pikachu"}, options);
ASSERT_OK(Put(1, "foo", "v1"));
ASSERT_OK(Put(1, "bar", "v2"));
ASSERT_OK(Flush(1));
ASSERT_OK(Put(1, "foo", "v3"));
ASSERT_OK(Put(1, "bar", "v4"));
ASSERT_OK(Flush(1));
ASSERT_OK(Put(1, "big", std::string(100, 'a')));
ReopenWithColumnFamilies({"default", "pikachu"}, CurrentOptions());
std::vector<std::vector<FileMetaData>> files;
dbfull()->TEST_GetFilesMetaData(handles_[1], &files);
size_t total_files = 0;
for (const auto& level : files) {
total_files += level.size();
}
ASSERT_EQ(total_files, 3);
for (const auto& level : files) {
for (const auto& file : level) {
if (kInfiniteMaxOpenFiles == option_config_) {
ASSERT_TRUE(file.table_reader_handle != nullptr);
} else {
ASSERT_TRUE(file.table_reader_handle == nullptr);
}
}
}
} while (ChangeWalOptions());
}
TEST_F(DBWALTest, IgnoreRecoveredLog) {
std::string backup_logs = dbname_ + "/backup_logs";
do {
// delete old files in backup_logs directory
env_->CreateDirIfMissing(backup_logs);
std::vector<std::string> old_files;
env_->GetChildren(backup_logs, &old_files);
for (auto& file : old_files) {
if (file != "." && file != "..") {
env_->DeleteFile(backup_logs + "/" + file);
}
}
Options options = CurrentOptions();
options.create_if_missing = true;
options.merge_operator = MergeOperators::CreateUInt64AddOperator();
options.wal_dir = dbname_ + "/logs";
DestroyAndReopen(options);
// fill up the DB
std::string one, two;
PutFixed64(&one, 1);
PutFixed64(&two, 2);
ASSERT_OK(db_->Merge(WriteOptions(), Slice("foo"), Slice(one)));
ASSERT_OK(db_->Merge(WriteOptions(), Slice("foo"), Slice(one)));
ASSERT_OK(db_->Merge(WriteOptions(), Slice("bar"), Slice(one)));
// copy the logs to backup
std::vector<std::string> logs;
env_->GetChildren(options.wal_dir, &logs);
for (auto& log : logs) {
if (log != ".." && log != ".") {
CopyFile(options.wal_dir + "/" + log, backup_logs + "/" + log);
}
}
// recover the DB
Reopen(options);
ASSERT_EQ(two, Get("foo"));
ASSERT_EQ(one, Get("bar"));
Close();
// copy the logs from backup back to wal dir
for (auto& log : logs) {
if (log != ".." && log != ".") {
CopyFile(backup_logs + "/" + log, options.wal_dir + "/" + log);
}
}
// this should ignore the log files, recovery should not happen again
// if the recovery happens, the same merge operator would be called twice,
// leading to incorrect results
Reopen(options);
ASSERT_EQ(two, Get("foo"));
ASSERT_EQ(one, Get("bar"));
Close();
Destroy(options);
Reopen(options);
Close();
// copy the logs from backup back to wal dir
env_->CreateDirIfMissing(options.wal_dir);
for (auto& log : logs) {
if (log != ".." && log != ".") {
CopyFile(backup_logs + "/" + log, options.wal_dir + "/" + log);
}
}
// assert that we successfully recovered only from logs, even though we
// destroyed the DB
Reopen(options);
ASSERT_EQ(two, Get("foo"));
ASSERT_EQ(one, Get("bar"));
// Recovery will fail if DB directory doesn't exist.
Destroy(options);
// copy the logs from backup back to wal dir
env_->CreateDirIfMissing(options.wal_dir);
for (auto& log : logs) {
if (log != ".." && log != ".") {
CopyFile(backup_logs + "/" + log, options.wal_dir + "/" + log);
// we won't be needing this file no more
env_->DeleteFile(backup_logs + "/" + log);
}
}
Status s = TryReopen(options);
ASSERT_TRUE(!s.ok());
Destroy(options);
} while (ChangeWalOptions());
}
TEST_F(DBWALTest, RecoveryWithEmptyLog) {
do {
CreateAndReopenWithCF({"pikachu"}, CurrentOptions());
ASSERT_OK(Put(1, "foo", "v1"));
ASSERT_OK(Put(1, "foo", "v2"));
ReopenWithColumnFamilies({"default", "pikachu"}, CurrentOptions());
ReopenWithColumnFamilies({"default", "pikachu"}, CurrentOptions());
ASSERT_OK(Put(1, "foo", "v3"));
ReopenWithColumnFamilies({"default", "pikachu"}, CurrentOptions());
ASSERT_EQ("v3", Get(1, "foo"));
} while (ChangeWalOptions());
}
#if !(defined NDEBUG) || !defined(OS_WIN)
TEST_F(DBWALTest, PreallocateBlock) {
Options options = CurrentOptions();
options.write_buffer_size = 10 * 1000 * 1000;
options.max_total_wal_size = 0;
size_t expected_preallocation_size = static_cast<size_t>(
options.write_buffer_size + options.write_buffer_size / 10);
DestroyAndReopen(options);
std::atomic<int> called(0);
rocksdb::SyncPoint::GetInstance()->SetCallBack(
"DBTestWalFile.GetPreallocationStatus", [&](void* arg) {
ASSERT_TRUE(arg != nullptr);
size_t preallocation_size = *(static_cast<size_t*>(arg));
ASSERT_EQ(expected_preallocation_size, preallocation_size);
called.fetch_add(1);
});
rocksdb::SyncPoint::GetInstance()->EnableProcessing();
Put("", "");
Flush();
Put("", "");
Close();
rocksdb::SyncPoint::GetInstance()->DisableProcessing();
ASSERT_EQ(2, called.load());
options.max_total_wal_size = 1000 * 1000;
expected_preallocation_size = static_cast<size_t>(options.max_total_wal_size);
Reopen(options);
called.store(0);
rocksdb::SyncPoint::GetInstance()->SetCallBack(
"DBTestWalFile.GetPreallocationStatus", [&](void* arg) {
ASSERT_TRUE(arg != nullptr);
size_t preallocation_size = *(static_cast<size_t*>(arg));
ASSERT_EQ(expected_preallocation_size, preallocation_size);
called.fetch_add(1);
});
rocksdb::SyncPoint::GetInstance()->EnableProcessing();
Put("", "");
Flush();
Put("", "");
Close();
rocksdb::SyncPoint::GetInstance()->DisableProcessing();
ASSERT_EQ(2, called.load());
options.db_write_buffer_size = 800 * 1000;
expected_preallocation_size =
static_cast<size_t>(options.db_write_buffer_size);
Reopen(options);
called.store(0);
rocksdb::SyncPoint::GetInstance()->SetCallBack(
"DBTestWalFile.GetPreallocationStatus", [&](void* arg) {
ASSERT_TRUE(arg != nullptr);
size_t preallocation_size = *(static_cast<size_t*>(arg));
ASSERT_EQ(expected_preallocation_size, preallocation_size);
called.fetch_add(1);
});
rocksdb::SyncPoint::GetInstance()->EnableProcessing();
Put("", "");
Flush();
Put("", "");
Close();
rocksdb::SyncPoint::GetInstance()->DisableProcessing();
ASSERT_EQ(2, called.load());
expected_preallocation_size = 700 * 1000;
std::shared_ptr<WriteBufferManager> write_buffer_manager =
std::make_shared<WriteBufferManager>(static_cast<uint64_t>(700 * 1000));
options.write_buffer_manager = write_buffer_manager;
Reopen(options);
called.store(0);
rocksdb::SyncPoint::GetInstance()->SetCallBack(
"DBTestWalFile.GetPreallocationStatus", [&](void* arg) {
ASSERT_TRUE(arg != nullptr);
size_t preallocation_size = *(static_cast<size_t*>(arg));
ASSERT_EQ(expected_preallocation_size, preallocation_size);
called.fetch_add(1);
});
rocksdb::SyncPoint::GetInstance()->EnableProcessing();
Put("", "");
Flush();
Put("", "");
Close();
rocksdb::SyncPoint::GetInstance()->DisableProcessing();
ASSERT_EQ(2, called.load());
}
#endif // !(defined NDEBUG) || !defined(OS_WIN)
#ifndef ROCKSDB_LITE
TEST_F(DBWALTest, FullPurgePreservesRecycledLog) {
// For github issue #1303
for (int i = 0; i < 2; ++i) {
Options options = CurrentOptions();
options.create_if_missing = true;
options.recycle_log_file_num = 2;
if (i != 0) {
options.wal_dir = alternative_wal_dir_;
}
DestroyAndReopen(options);
ASSERT_OK(Put("foo", "v1"));
VectorLogPtr log_files;
ASSERT_OK(dbfull()->GetSortedWalFiles(log_files));
ASSERT_GT(log_files.size(), 0);
ASSERT_OK(Flush());
// Now the original WAL is in log_files[0] and should be marked for
// recycling.
// Verify full purge cannot remove this file.
JobContext job_context(0);
dbfull()->TEST_LockMutex();
dbfull()->FindObsoleteFiles(&job_context, true /* force */);
dbfull()->TEST_UnlockMutex();
dbfull()->PurgeObsoleteFiles(job_context);
if (i == 0) {
ASSERT_OK(
env_->FileExists(LogFileName(dbname_, log_files[0]->LogNumber())));
} else {
ASSERT_OK(env_->FileExists(
LogFileName(alternative_wal_dir_, log_files[0]->LogNumber())));
}
}
}
TEST_F(DBWALTest, GetSortedWalFiles) {
do {
CreateAndReopenWithCF({"pikachu"}, CurrentOptions());
VectorLogPtr log_files;
ASSERT_OK(dbfull()->GetSortedWalFiles(log_files));
ASSERT_EQ(0, log_files.size());
ASSERT_OK(Put(1, "foo", "v1"));
ASSERT_OK(dbfull()->GetSortedWalFiles(log_files));
ASSERT_EQ(1, log_files.size());
} while (ChangeWalOptions());
}
TEST_F(DBWALTest, RecoveryWithLogDataForSomeCFs) {
// Test for regression of WAL cleanup missing files that don't contain data
// for every column family.
do {
CreateAndReopenWithCF({"pikachu"}, CurrentOptions());
ASSERT_OK(Put(1, "foo", "v1"));
ASSERT_OK(Put(1, "foo", "v2"));
uint64_t earliest_log_nums[2];
for (int i = 0; i < 2; ++i) {
if (i > 0) {
ReopenWithColumnFamilies({"default", "pikachu"}, CurrentOptions());
}
VectorLogPtr log_files;
ASSERT_OK(dbfull()->GetSortedWalFiles(log_files));
if (log_files.size() > 0) {
earliest_log_nums[i] = log_files[0]->LogNumber();
} else {
earliest_log_nums[i] = port::kMaxUint64;
}
}
// Check at least the first WAL was cleaned up during the recovery.
ASSERT_LT(earliest_log_nums[0], earliest_log_nums[1]);
} while (ChangeWalOptions());
}
TEST_F(DBWALTest, RecoverWithLargeLog) {
do {
{
Options options = CurrentOptions();
CreateAndReopenWithCF({"pikachu"}, options);
ASSERT_OK(Put(1, "big1", std::string(200000, '1')));
ASSERT_OK(Put(1, "big2", std::string(200000, '2')));
ASSERT_OK(Put(1, "small3", std::string(10, '3')));
ASSERT_OK(Put(1, "small4", std::string(10, '4')));
ASSERT_EQ(NumTableFilesAtLevel(0, 1), 0);
}
// Make sure that if we re-open with a small write buffer size that
// we flush table files in the middle of a large log file.
Options options;
options.write_buffer_size = 100000;
options = CurrentOptions(options);
ReopenWithColumnFamilies({"default", "pikachu"}, options);
ASSERT_EQ(NumTableFilesAtLevel(0, 1), 3);
ASSERT_EQ(std::string(200000, '1'), Get(1, "big1"));
ASSERT_EQ(std::string(200000, '2'), Get(1, "big2"));
ASSERT_EQ(std::string(10, '3'), Get(1, "small3"));
ASSERT_EQ(std::string(10, '4'), Get(1, "small4"));
ASSERT_GT(NumTableFilesAtLevel(0, 1), 1);
} while (ChangeWalOptions());
}
// In https://reviews.facebook.net/D20661 we change
// recovery behavior: previously for each log file each column family
// memtable was flushed, even it was empty. Now it's changed:
// we try to create the smallest number of table files by merging
// updates from multiple logs
TEST_F(DBWALTest, RecoverCheckFileAmountWithSmallWriteBuffer) {
Options options = CurrentOptions();
options.write_buffer_size = 5000000;
CreateAndReopenWithCF({"pikachu", "dobrynia", "nikitich"}, options);
// Since we will reopen DB with smaller write_buffer_size,
// each key will go to new SST file
ASSERT_OK(Put(1, Key(10), DummyString(1000000)));
ASSERT_OK(Put(1, Key(10), DummyString(1000000)));
ASSERT_OK(Put(1, Key(10), DummyString(1000000)));
ASSERT_OK(Put(1, Key(10), DummyString(1000000)));
ASSERT_OK(Put(3, Key(10), DummyString(1)));
// Make 'dobrynia' to be flushed and new WAL file to be created
ASSERT_OK(Put(2, Key(10), DummyString(7500000)));
ASSERT_OK(Put(2, Key(1), DummyString(1)));
dbfull()->TEST_WaitForFlushMemTable(handles_[2]);
{
auto tables = ListTableFiles(env_, dbname_);
ASSERT_EQ(tables.size(), static_cast<size_t>(1));
// Make sure 'dobrynia' was flushed: check sst files amount
ASSERT_EQ(GetNumberOfSstFilesForColumnFamily(db_, "dobrynia"),
static_cast<uint64_t>(1));
}
// New WAL file
ASSERT_OK(Put(1, Key(1), DummyString(1)));
ASSERT_OK(Put(1, Key(1), DummyString(1)));
ASSERT_OK(Put(3, Key(10), DummyString(1)));
ASSERT_OK(Put(3, Key(10), DummyString(1)));
ASSERT_OK(Put(3, Key(10), DummyString(1)));
options.write_buffer_size = 4096;
options.arena_block_size = 4096;
ReopenWithColumnFamilies({"default", "pikachu", "dobrynia", "nikitich"},
options);
{
// No inserts => default is empty
ASSERT_EQ(GetNumberOfSstFilesForColumnFamily(db_, "default"),
static_cast<uint64_t>(0));
// First 4 keys goes to separate SSTs + 1 more SST for 2 smaller keys
ASSERT_EQ(GetNumberOfSstFilesForColumnFamily(db_, "pikachu"),
static_cast<uint64_t>(5));
// 1 SST for big key + 1 SST for small one
ASSERT_EQ(GetNumberOfSstFilesForColumnFamily(db_, "dobrynia"),
static_cast<uint64_t>(2));
// 1 SST for all keys
ASSERT_EQ(GetNumberOfSstFilesForColumnFamily(db_, "nikitich"),
static_cast<uint64_t>(1));
}
}
// In https://reviews.facebook.net/D20661 we change
// recovery behavior: previously for each log file each column family
// memtable was flushed, even it wasn't empty. Now it's changed:
// we try to create the smallest number of table files by merging
// updates from multiple logs
TEST_F(DBWALTest, RecoverCheckFileAmount) {
Options options = CurrentOptions();
options.write_buffer_size = 100000;
options.arena_block_size = 4 * 1024;
options.avoid_flush_during_recovery = false;
CreateAndReopenWithCF({"pikachu", "dobrynia", "nikitich"}, options);
ASSERT_OK(Put(0, Key(1), DummyString(1)));
ASSERT_OK(Put(1, Key(1), DummyString(1)));
ASSERT_OK(Put(2, Key(1), DummyString(1)));
// Make 'nikitich' memtable to be flushed
ASSERT_OK(Put(3, Key(10), DummyString(1002400)));
ASSERT_OK(Put(3, Key(1), DummyString(1)));
dbfull()->TEST_WaitForFlushMemTable(handles_[3]);
// 4 memtable are not flushed, 1 sst file
{
auto tables = ListTableFiles(env_, dbname_);
ASSERT_EQ(tables.size(), static_cast<size_t>(1));
ASSERT_EQ(GetNumberOfSstFilesForColumnFamily(db_, "nikitich"),
static_cast<uint64_t>(1));
}
// Memtable for 'nikitich' has flushed, new WAL file has opened
// 4 memtable still not flushed
// Write to new WAL file
ASSERT_OK(Put(0, Key(1), DummyString(1)));
ASSERT_OK(Put(1, Key(1), DummyString(1)));
ASSERT_OK(Put(2, Key(1), DummyString(1)));
// Fill up 'nikitich' one more time
ASSERT_OK(Put(3, Key(10), DummyString(1002400)));
// make it flush
ASSERT_OK(Put(3, Key(1), DummyString(1)));
dbfull()->TEST_WaitForFlushMemTable(handles_[3]);
// There are still 4 memtable not flushed, and 2 sst tables
ASSERT_OK(Put(0, Key(1), DummyString(1)));
ASSERT_OK(Put(1, Key(1), DummyString(1)));
ASSERT_OK(Put(2, Key(1), DummyString(1)));
{
auto tables = ListTableFiles(env_, dbname_);
ASSERT_EQ(tables.size(), static_cast<size_t>(2));
ASSERT_EQ(GetNumberOfSstFilesForColumnFamily(db_, "nikitich"),
static_cast<uint64_t>(2));
}
ReopenWithColumnFamilies({"default", "pikachu", "dobrynia", "nikitich"},
options);
{
std::vector<uint64_t> table_files = ListTableFiles(env_, dbname_);
// Check, that records for 'default', 'dobrynia' and 'pikachu' from
// first, second and third WALs went to the same SST.
// So, there is 6 SSTs: three for 'nikitich', one for 'default', one for
// 'dobrynia', one for 'pikachu'
ASSERT_EQ(GetNumberOfSstFilesForColumnFamily(db_, "default"),
static_cast<uint64_t>(1));
ASSERT_EQ(GetNumberOfSstFilesForColumnFamily(db_, "nikitich"),
static_cast<uint64_t>(3));
ASSERT_EQ(GetNumberOfSstFilesForColumnFamily(db_, "dobrynia"),
static_cast<uint64_t>(1));
ASSERT_EQ(GetNumberOfSstFilesForColumnFamily(db_, "pikachu"),
static_cast<uint64_t>(1));
}
}
TEST_F(DBWALTest, SyncMultipleLogs) {
const uint64_t kNumBatches = 2;
const int kBatchSize = 1000;
Options options = CurrentOptions();
options.create_if_missing = true;
options.write_buffer_size = 4096;
Reopen(options);
WriteBatch batch;
WriteOptions wo;
wo.sync = true;
for (uint64_t b = 0; b < kNumBatches; b++) {
batch.Clear();
for (int i = 0; i < kBatchSize; i++) {
batch.Put(Key(i), DummyString(128));
}
dbfull()->Write(wo, &batch);
}
ASSERT_OK(dbfull()->SyncWAL());
}
// Github issue 1339. Prior the fix we read sequence id from the first log to
// a local variable, then keep increase the variable as we replay logs,
// ignoring actual sequence id of the records. This is incorrect if some writes
// come with WAL disabled.
TEST_F(DBWALTest, PartOfWritesWithWALDisabled) {
std::unique_ptr<FaultInjectionTestEnv> fault_env(
new FaultInjectionTestEnv(env_));
Options options = CurrentOptions();
options.env = fault_env.get();
options.disable_auto_compactions = true;
WriteOptions wal_on, wal_off;
wal_on.sync = true;
wal_on.disableWAL = false;
wal_off.disableWAL = true;
CreateAndReopenWithCF({"dummy"}, options);
ASSERT_OK(Put(1, "dummy", "d1", wal_on)); // seq id 1
ASSERT_OK(Put(1, "dummy", "d2", wal_off));
ASSERT_OK(Put(1, "dummy", "d3", wal_off));
ASSERT_OK(Put(0, "key", "v4", wal_on)); // seq id 4
ASSERT_OK(Flush(0));
ASSERT_OK(Put(0, "key", "v5", wal_on)); // seq id 5
ASSERT_EQ("v5", Get(0, "key"));
dbfull()->FlushWAL(false);
// Simulate a crash.
fault_env->SetFilesystemActive(false);
Close();
fault_env->ResetState();
ReopenWithColumnFamilies({"default", "dummy"}, options);
// Prior to the fix, we may incorrectly recover "v5" with sequence id = 3.
ASSERT_EQ("v5", Get(0, "key"));
// Destroy DB before destruct fault_env.
Destroy(options);
}
//
// Test WAL recovery for the various modes available
//
class RecoveryTestHelper {
public:
// Number of WAL files to generate
static const int kWALFilesCount = 10;
// Starting number for the WAL file name like 00010.log
static const int kWALFileOffset = 10;
// Keys to be written per WAL file
static const int kKeysPerWALFile = 133;
// Size of the value
static const int kValueSize = 96;
// Create WAL files with values filled in
static void FillData(DBWALTest* test, const Options& options,
const size_t wal_count, size_t* count) {
const ImmutableDBOptions db_options(options);
*count = 0;
shared_ptr<Cache> table_cache = NewLRUCache(50, 0);
EnvOptions env_options;
WriteBufferManager write_buffer_manager(db_options.db_write_buffer_size);
unique_ptr<VersionSet> versions;
unique_ptr<WalManager> wal_manager;
WriteController write_controller;
versions.reset(new VersionSet(test->dbname_, &db_options, env_options,
table_cache.get(), &write_buffer_manager,
&write_controller));
wal_manager.reset(new WalManager(db_options, env_options));
std::unique_ptr<log::Writer> current_log_writer;
for (size_t j = kWALFileOffset; j < wal_count + kWALFileOffset; j++) {
uint64_t current_log_number = j;
std::string fname = LogFileName(test->dbname_, current_log_number);
unique_ptr<WritableFile> file;
ASSERT_OK(db_options.env->NewWritableFile(fname, &file, env_options));
unique_ptr<WritableFileWriter> file_writer(
new WritableFileWriter(std::move(file), env_options));
current_log_writer.reset(
new log::Writer(std::move(file_writer), current_log_number,
db_options.recycle_log_file_num > 0));
WriteBatch batch;
for (int i = 0; i < kKeysPerWALFile; i++) {
std::string key = "key" + ToString((*count)++);
std::string value = test->DummyString(kValueSize);
assert(current_log_writer.get() != nullptr);
uint64_t seq = versions->LastSequence() + 1;
batch.Clear();
batch.Put(key, value);
WriteBatchInternal::SetSequence(&batch, seq);
current_log_writer->AddRecord(WriteBatchInternal::Contents(&batch));
versions->SetLastAllocatedSequence(seq);
versions->SetLastPublishedSequence(seq);
versions->SetLastSequence(seq);
}
}
}
// Recreate and fill the store with some data
static size_t FillData(DBWALTest* test, Options* options) {
options->create_if_missing = true;
test->DestroyAndReopen(*options);
test->Close();
size_t count = 0;
FillData(test, *options, kWALFilesCount, &count);
return count;
}
// Read back all the keys we wrote and return the number of keys found
static size_t GetData(DBWALTest* test) {
size_t count = 0;
for (size_t i = 0; i < kWALFilesCount * kKeysPerWALFile; i++) {
if (test->Get("key" + ToString(i)) != "NOT_FOUND") {
++count;
}
}
return count;
}
// Manuall corrupt the specified WAL
static void CorruptWAL(DBWALTest* test, const Options& options,
const double off, const double len,
const int wal_file_id, const bool trunc = false) {
Env* env = options.env;
std::string fname = LogFileName(test->dbname_, wal_file_id);
uint64_t size;
ASSERT_OK(env->GetFileSize(fname, &size));
ASSERT_GT(size, 0);
#ifdef OS_WIN
// Windows disk cache behaves differently. When we truncate
// the original content is still in the cache due to the original
// handle is still open. Generally, in Windows, one prohibits
// shared access to files and it is not needed for WAL but we allow
// it to induce corruption at various tests.
test->Close();
#endif
if (trunc) {
ASSERT_EQ(0, truncate(fname.c_str(), static_cast<int64_t>(size * off)));
} else {
InduceCorruption(fname, static_cast<size_t>(size * off + 8),
static_cast<size_t>(size * len));
}
}
// Overwrite data with 'a' from offset for length len
static void InduceCorruption(const std::string& filename, size_t offset,
size_t len) {
ASSERT_GT(len, 0U);
int fd = open(filename.c_str(), O_RDWR);
// On windows long is 32-bit
ASSERT_LE(offset, std::numeric_limits<long>::max());
ASSERT_GT(fd, 0);
ASSERT_EQ(offset, lseek(fd, static_cast<long>(offset), SEEK_SET));
void* buf = alloca(len);
memset(buf, 'b', len);
ASSERT_EQ(len, write(fd, buf, static_cast<unsigned int>(len)));
close(fd);
}
};
// Test scope:
// - We expect to open the data store when there is incomplete trailing writes
// at the end of any of the logs
// - We do not expect to open the data store for corruption
TEST_F(DBWALTest, kTolerateCorruptedTailRecords) {
const int jstart = RecoveryTestHelper::kWALFileOffset;
const int jend = jstart + RecoveryTestHelper::kWALFilesCount;
for (auto trunc : {true, false}) { /* Corruption style */
for (int i = 0; i < 3; i++) { /* Corruption offset position */
for (int j = jstart; j < jend; j++) { /* WAL file */
// Fill data for testing
Options options = CurrentOptions();
const size_t row_count = RecoveryTestHelper::FillData(this, &options);
// test checksum failure or parsing
RecoveryTestHelper::CorruptWAL(this, options, /*off=*/i * .3,
/*len%=*/.1, /*wal=*/j, trunc);
if (trunc) {
options.wal_recovery_mode =
WALRecoveryMode::kTolerateCorruptedTailRecords;
options.create_if_missing = false;
ASSERT_OK(TryReopen(options));
const size_t recovered_row_count = RecoveryTestHelper::GetData(this);
ASSERT_TRUE(i == 0 || recovered_row_count > 0);
ASSERT_LT(recovered_row_count, row_count);
} else {
options.wal_recovery_mode =
WALRecoveryMode::kTolerateCorruptedTailRecords;
ASSERT_NOK(TryReopen(options));
}
}
}
}
}
// Test scope:
// We don't expect the data store to be opened if there is any corruption
// (leading, middle or trailing -- incomplete writes or corruption)
TEST_F(DBWALTest, kAbsoluteConsistency) {
const int jstart = RecoveryTestHelper::kWALFileOffset;
const int jend = jstart + RecoveryTestHelper::kWALFilesCount;
// Verify clean slate behavior
Options options = CurrentOptions();
const size_t row_count = RecoveryTestHelper::FillData(this, &options);
options.wal_recovery_mode = WALRecoveryMode::kAbsoluteConsistency;
options.create_if_missing = false;
ASSERT_OK(TryReopen(options));
ASSERT_EQ(RecoveryTestHelper::GetData(this), row_count);
for (auto trunc : {true, false}) { /* Corruption style */
for (int i = 0; i < 4; i++) { /* Corruption offset position */
if (trunc && i == 0) {
continue;
}
for (int j = jstart; j < jend; j++) { /* wal files */
// fill with new date
RecoveryTestHelper::FillData(this, &options);
// corrupt the wal
RecoveryTestHelper::CorruptWAL(this, options, /*off=*/i * .3,
/*len%=*/.1, j, trunc);
// verify
options.wal_recovery_mode = WALRecoveryMode::kAbsoluteConsistency;
options.create_if_missing = false;
ASSERT_NOK(TryReopen(options));
}
}
}
}
// Test scope:
// We don't expect the data store to be opened if there is any inconsistency
// between WAL and SST files
TEST_F(DBWALTest, kPointInTimeRecoveryCFConsistency) {
Options options = CurrentOptions();
options.avoid_flush_during_recovery = true;
// Create DB with multiple column families.
CreateAndReopenWithCF({"one", "two"}, options);
ASSERT_OK(Put(1, "key1", "val1"));
ASSERT_OK(Put(2, "key2", "val2"));
// Record the offset at this point
Env* env = options.env;
int wal_file_id = RecoveryTestHelper::kWALFileOffset + 1;
std::string fname = LogFileName(dbname_, wal_file_id);
uint64_t offset_to_corrupt;
ASSERT_OK(env->GetFileSize(fname, &offset_to_corrupt));
ASSERT_GT(offset_to_corrupt, 0);
ASSERT_OK(Put(1, "key3", "val3"));
// Corrupt WAL at location of key3
RecoveryTestHelper::InduceCorruption(
fname, static_cast<size_t>(offset_to_corrupt), static_cast<size_t>(4));
ASSERT_OK(Put(2, "key4", "val4"));
ASSERT_OK(Put(1, "key5", "val5"));
Flush(2);
// PIT recovery & verify
options.wal_recovery_mode = WALRecoveryMode::kPointInTimeRecovery;
ASSERT_NOK(TryReopenWithColumnFamilies({"default", "one", "two"}, options));
}
// Test scope:
// - We expect to open data store under all circumstances
// - We expect only data upto the point where the first error was encountered
TEST_F(DBWALTest, kPointInTimeRecovery) {
const int jstart = RecoveryTestHelper::kWALFileOffset;
const int jend = jstart + RecoveryTestHelper::kWALFilesCount;
const int maxkeys =
RecoveryTestHelper::kWALFilesCount * RecoveryTestHelper::kKeysPerWALFile;
for (auto trunc : {true, false}) { /* Corruption style */
for (int i = 0; i < 4; i++) { /* Offset of corruption */
for (int j = jstart; j < jend; j++) { /* WAL file */
// Fill data for testing
Options options = CurrentOptions();
const size_t row_count = RecoveryTestHelper::FillData(this, &options);
// Corrupt the wal
RecoveryTestHelper::CorruptWAL(this, options, /*off=*/i * .3,
/*len%=*/.1, j, trunc);
// Verify
options.wal_recovery_mode = WALRecoveryMode::kPointInTimeRecovery;
options.create_if_missing = false;
ASSERT_OK(TryReopen(options));
// Probe data for invariants
size_t recovered_row_count = RecoveryTestHelper::GetData(this);
ASSERT_LT(recovered_row_count, row_count);
bool expect_data = true;
for (size_t k = 0; k < maxkeys; ++k) {
bool found = Get("key" + ToString(i)) != "NOT_FOUND";
if (expect_data && !found) {
expect_data = false;
}
ASSERT_EQ(found, expect_data);
}
const size_t min = RecoveryTestHelper::kKeysPerWALFile *
(j - RecoveryTestHelper::kWALFileOffset);
ASSERT_GE(recovered_row_count, min);
if (!trunc && i != 0) {
const size_t max = RecoveryTestHelper::kKeysPerWALFile *
(j - RecoveryTestHelper::kWALFileOffset + 1);
ASSERT_LE(recovered_row_count, max);
}
}
}
}
}
// Test scope:
// - We expect to open the data store under all scenarios
// - We expect to have recovered records past the corruption zone
TEST_F(DBWALTest, kSkipAnyCorruptedRecords) {
const int jstart = RecoveryTestHelper::kWALFileOffset;
const int jend = jstart + RecoveryTestHelper::kWALFilesCount;
for (auto trunc : {true, false}) { /* Corruption style */
for (int i = 0; i < 4; i++) { /* Corruption offset */
for (int j = jstart; j < jend; j++) { /* wal files */
// Fill data for testing
Options options = CurrentOptions();
const size_t row_count = RecoveryTestHelper::FillData(this, &options);
// Corrupt the WAL
RecoveryTestHelper::CorruptWAL(this, options, /*off=*/i * .3,
/*len%=*/.1, j, trunc);
// Verify behavior
options.wal_recovery_mode = WALRecoveryMode::kSkipAnyCorruptedRecords;
options.create_if_missing = false;
ASSERT_OK(TryReopen(options));
// Probe data for invariants
size_t recovered_row_count = RecoveryTestHelper::GetData(this);
ASSERT_LT(recovered_row_count, row_count);
if (!trunc) {
ASSERT_TRUE(i != 0 || recovered_row_count > 0);
}
}
}
}
}
TEST_F(DBWALTest, AvoidFlushDuringRecovery) {
Options options = CurrentOptions();
options.disable_auto_compactions = true;
options.avoid_flush_during_recovery = false;
// Test with flush after recovery.
Reopen(options);
ASSERT_OK(Put("foo", "v1"));
ASSERT_OK(Put("bar", "v2"));
ASSERT_OK(Flush());
ASSERT_OK(Put("foo", "v3"));
ASSERT_OK(Put("bar", "v4"));
ASSERT_EQ(1, TotalTableFiles());
// Reopen DB. Check if WAL logs flushed.
Reopen(options);
ASSERT_EQ("v3", Get("foo"));
ASSERT_EQ("v4", Get("bar"));
ASSERT_EQ(2, TotalTableFiles());
// Test without flush after recovery.
options.avoid_flush_during_recovery = true;
DestroyAndReopen(options);
ASSERT_OK(Put("foo", "v5"));
ASSERT_OK(Put("bar", "v6"));
ASSERT_OK(Flush());
ASSERT_OK(Put("foo", "v7"));
ASSERT_OK(Put("bar", "v8"));
ASSERT_EQ(1, TotalTableFiles());
// Reopen DB. WAL logs should not be flushed this time.
Reopen(options);
ASSERT_EQ("v7", Get("foo"));
ASSERT_EQ("v8", Get("bar"));
ASSERT_EQ(1, TotalTableFiles());
// Force flush with allow_2pc.
options.avoid_flush_during_recovery = true;
options.allow_2pc = true;
ASSERT_OK(Put("foo", "v9"));
ASSERT_OK(Put("bar", "v10"));
ASSERT_OK(Flush());
ASSERT_OK(Put("foo", "v11"));
ASSERT_OK(Put("bar", "v12"));
Reopen(options);
ASSERT_EQ("v11", Get("foo"));
ASSERT_EQ("v12", Get("bar"));
ASSERT_EQ(3, TotalTableFiles());
}
TEST_F(DBWALTest, WalCleanupAfterAvoidFlushDuringRecovery) {
// Verifies WAL files that were present during recovery, but not flushed due
// to avoid_flush_during_recovery, will be considered for deletion at a later
// stage. We check at least one such file is deleted during Flush().
Options options = CurrentOptions();
options.disable_auto_compactions = true;
options.avoid_flush_during_recovery = true;
Reopen(options);
ASSERT_OK(Put("foo", "v1"));
Reopen(options);
for (int i = 0; i < 2; ++i) {
if (i > 0) {
// Flush() triggers deletion of obsolete tracked files
Flush();
}
VectorLogPtr log_files;
ASSERT_OK(dbfull()->GetSortedWalFiles(log_files));
if (i == 0) {
ASSERT_GT(log_files.size(), 0);
} else {
ASSERT_EQ(0, log_files.size());
}
}
}
TEST_F(DBWALTest, RecoverWithoutFlush) {
Options options = CurrentOptions();
options.avoid_flush_during_recovery = true;
options.create_if_missing = false;
options.disable_auto_compactions = true;
options.write_buffer_size = 64 * 1024 * 1024;
size_t count = RecoveryTestHelper::FillData(this, &options);
auto validateData = [this, count]() {
for (size_t i = 0; i < count; i++) {
ASSERT_NE(Get("key" + ToString(i)), "NOT_FOUND");
}
};
Reopen(options);
validateData();
// Insert some data without flush
ASSERT_OK(Put("foo", "foo_v1"));
ASSERT_OK(Put("bar", "bar_v1"));
Reopen(options);
validateData();
ASSERT_EQ(Get("foo"), "foo_v1");
ASSERT_EQ(Get("bar"), "bar_v1");
// Insert again and reopen
ASSERT_OK(Put("foo", "foo_v2"));
ASSERT_OK(Put("bar", "bar_v2"));
Reopen(options);
validateData();
ASSERT_EQ(Get("foo"), "foo_v2");
ASSERT_EQ(Get("bar"), "bar_v2");
// manual flush and insert again
Flush();
ASSERT_EQ(Get("foo"), "foo_v2");
ASSERT_EQ(Get("bar"), "bar_v2");
ASSERT_OK(Put("foo", "foo_v3"));
ASSERT_OK(Put("bar", "bar_v3"));
Reopen(options);
validateData();
ASSERT_EQ(Get("foo"), "foo_v3");
ASSERT_EQ(Get("bar"), "bar_v3");
}
TEST_F(DBWALTest, RecoverWithoutFlushMultipleCF) {
const std::string kSmallValue = "v";
const std::string kLargeValue = DummyString(1024);
Options options = CurrentOptions();
options.avoid_flush_during_recovery = true;
options.create_if_missing = false;
options.disable_auto_compactions = true;
auto countWalFiles = [this]() {
VectorLogPtr log_files;
dbfull()->GetSortedWalFiles(log_files);
return log_files.size();
};
// Create DB with multiple column families and multiple log files.
CreateAndReopenWithCF({"one", "two"}, options);
ASSERT_OK(Put(0, "key1", kSmallValue));
ASSERT_OK(Put(1, "key2", kLargeValue));
Flush(1);
ASSERT_EQ(1, countWalFiles());
ASSERT_OK(Put(0, "key3", kSmallValue));
ASSERT_OK(Put(2, "key4", kLargeValue));
Flush(2);
ASSERT_EQ(2, countWalFiles());
// Reopen, insert and flush.
options.db_write_buffer_size = 64 * 1024 * 1024;
ReopenWithColumnFamilies({"default", "one", "two"}, options);
ASSERT_EQ(Get(0, "key1"), kSmallValue);
ASSERT_EQ(Get(1, "key2"), kLargeValue);
ASSERT_EQ(Get(0, "key3"), kSmallValue);
ASSERT_EQ(Get(2, "key4"), kLargeValue);
// Insert more data.
ASSERT_OK(Put(0, "key5", kLargeValue));
ASSERT_OK(Put(1, "key6", kLargeValue));
ASSERT_EQ(3, countWalFiles());
Flush(1);
ASSERT_OK(Put(2, "key7", kLargeValue));
dbfull()->FlushWAL(false);
ASSERT_EQ(4, countWalFiles());
// Reopen twice and validate.
for (int i = 0; i < 2; i++) {
ReopenWithColumnFamilies({"default", "one", "two"}, options);
ASSERT_EQ(Get(0, "key1"), kSmallValue);
ASSERT_EQ(Get(1, "key2"), kLargeValue);
ASSERT_EQ(Get(0, "key3"), kSmallValue);
ASSERT_EQ(Get(2, "key4"), kLargeValue);
ASSERT_EQ(Get(0, "key5"), kLargeValue);
ASSERT_EQ(Get(1, "key6"), kLargeValue);
ASSERT_EQ(Get(2, "key7"), kLargeValue);
ASSERT_EQ(4, countWalFiles());
}
}
// In this test we are trying to do the following:
// 1. Create a DB with corrupted WAL log;
// 2. Open with avoid_flush_during_recovery = true;
// 3. Append more data without flushing, which creates new WAL log.
// 4. Open again. See if it can correctly handle previous corruption.
TEST_F(DBWALTest, RecoverFromCorruptedWALWithoutFlush) {
const int jstart = RecoveryTestHelper::kWALFileOffset;
const int jend = jstart + RecoveryTestHelper::kWALFilesCount;
const int kAppendKeys = 100;
Options options = CurrentOptions();
options.avoid_flush_during_recovery = true;
options.create_if_missing = false;
options.disable_auto_compactions = true;
options.write_buffer_size = 64 * 1024 * 1024;
auto getAll = [this]() {
std::vector<std::pair<std::string, std::string>> data;
ReadOptions ropt;
Iterator* iter = dbfull()->NewIterator(ropt);
for (iter->SeekToFirst(); iter->Valid(); iter->Next()) {
data.push_back(
std::make_pair(iter->key().ToString(), iter->value().ToString()));
}
delete iter;
return data;
};
for (auto& mode : wal_recovery_mode_string_map) {
options.wal_recovery_mode = mode.second;
for (auto trunc : {true, false}) {
for (int i = 0; i < 4; i++) {
for (int j = jstart; j < jend; j++) {
// Create corrupted WAL
RecoveryTestHelper::FillData(this, &options);
RecoveryTestHelper::CorruptWAL(this, options, /*off=*/i * .3,
/*len%=*/.1, /*wal=*/j, trunc);
// Skip the test if DB won't open.
if (!TryReopen(options).ok()) {
ASSERT_TRUE(options.wal_recovery_mode ==
WALRecoveryMode::kAbsoluteConsistency ||
(!trunc &&
options.wal_recovery_mode ==
WALRecoveryMode::kTolerateCorruptedTailRecords));
continue;
}
ASSERT_OK(TryReopen(options));
// Append some more data.
for (int k = 0; k < kAppendKeys; k++) {
std::string key = "extra_key" + ToString(k);
std::string value = DummyString(RecoveryTestHelper::kValueSize);
ASSERT_OK(Put(key, value));
}
// Save data for comparison.
auto data = getAll();
// Reopen. Verify data.
ASSERT_OK(TryReopen(options));
auto actual_data = getAll();
ASSERT_EQ(data, actual_data);
}
}
}
}
}
#endif // ROCKSDB_LITE
TEST_F(DBWALTest, WalTermTest) {
Options options = CurrentOptions();
options.env = env_;
CreateAndReopenWithCF({"pikachu"}, options);
ASSERT_OK(Put(1, "foo", "bar"));
WriteOptions wo;
wo.sync = true;
wo.disableWAL = false;
WriteBatch batch;
batch.Put("foo", "bar");
batch.MarkWalTerminationPoint();
batch.Put("foo2", "bar2");
ASSERT_OK(dbfull()->Write(wo, &batch));
// make sure we can re-open it.
ASSERT_OK(TryReopenWithColumnFamilies({"default", "pikachu"}, options));
ASSERT_EQ("bar", Get(1, "foo"));
ASSERT_EQ("NOT_FOUND", Get(1, "foo2"));
}
} // namespace rocksdb
int main(int argc, char** argv) {
rocksdb::port::InstallStackTraceHandler();
::testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}
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