rocksdb/utilities/checkpoint/checkpoint_test.cc
sdong d64cf0e4ee Move away from direct TmpDir() call in some tests (#7030)
Summary:
Some tests directly uses TmpDir() as temporary directory without adding any randomize factor. This would cause failures when tests run in parallel. Fix it by moving some of them to test::PerThreadDBPath()
Pull Request resolved: https://github.com/facebook/rocksdb/pull/7030

Test Plan: Watch existing tests pass

Reviewed By: zhichao-cao

Differential Revision: D22224710

fbshipit-source-id: 28c9932fede0a4a64670e5b5fdb08f4fb5dccdd0
2020-06-25 12:09:57 -07:00

830 lines
27 KiB
C++

// 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.
// Syncpoint prevents us building and running tests in release
#ifndef ROCKSDB_LITE
#ifndef OS_WIN
#include <unistd.h>
#endif
#include <iostream>
#include <thread>
#include <utility>
#include "db/db_impl/db_impl.h"
#include "port/port.h"
#include "port/stack_trace.h"
#include "rocksdb/db.h"
#include "rocksdb/env.h"
#include "rocksdb/utilities/checkpoint.h"
#include "rocksdb/utilities/transaction_db.h"
#include "test_util/fault_injection_test_env.h"
#include "test_util/sync_point.h"
#include "test_util/testharness.h"
#include "test_util/testutil.h"
namespace ROCKSDB_NAMESPACE {
class CheckpointTest : public testing::Test {
protected:
// Sequence of option configurations to try
enum OptionConfig {
kDefault = 0,
};
int option_config_;
public:
std::string dbname_;
std::string alternative_wal_dir_;
Env* env_;
DB* db_;
Options last_options_;
std::vector<ColumnFamilyHandle*> handles_;
std::string snapshot_name_;
std::string export_path_;
ColumnFamilyHandle* cfh_reverse_comp_;
ExportImportFilesMetaData* metadata_;
CheckpointTest() : env_(Env::Default()) {
env_->SetBackgroundThreads(1, Env::LOW);
env_->SetBackgroundThreads(1, Env::HIGH);
dbname_ = test::PerThreadDBPath(env_, "checkpoint_test");
alternative_wal_dir_ = dbname_ + "/wal";
auto options = CurrentOptions();
auto delete_options = options;
delete_options.wal_dir = alternative_wal_dir_;
EXPECT_OK(DestroyDB(dbname_, delete_options));
// Destroy it for not alternative WAL dir is used.
EXPECT_OK(DestroyDB(dbname_, options));
db_ = nullptr;
snapshot_name_ = test::PerThreadDBPath(env_, "snapshot");
std::string snapshot_tmp_name = snapshot_name_ + ".tmp";
EXPECT_OK(DestroyDB(snapshot_name_, options));
env_->DeleteDir(snapshot_name_);
EXPECT_OK(DestroyDB(snapshot_tmp_name, options));
env_->DeleteDir(snapshot_tmp_name);
Reopen(options);
export_path_ = test::PerThreadDBPath("/export");
test::DestroyDir(env_, export_path_);
cfh_reverse_comp_ = nullptr;
metadata_ = nullptr;
}
~CheckpointTest() override {
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->LoadDependency({});
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->ClearAllCallBacks();
if (cfh_reverse_comp_) {
EXPECT_OK(db_->DestroyColumnFamilyHandle(cfh_reverse_comp_));
cfh_reverse_comp_ = nullptr;
}
if (metadata_) {
delete metadata_;
metadata_ = nullptr;
}
Close();
Options options;
options.db_paths.emplace_back(dbname_, 0);
options.db_paths.emplace_back(dbname_ + "_2", 0);
options.db_paths.emplace_back(dbname_ + "_3", 0);
options.db_paths.emplace_back(dbname_ + "_4", 0);
EXPECT_OK(DestroyDB(dbname_, options));
EXPECT_OK(DestroyDB(snapshot_name_, options));
test::DestroyDir(env_, export_path_);
}
// Return the current option configuration.
Options CurrentOptions() {
Options options;
options.env = env_;
options.create_if_missing = true;
return options;
}
void CreateColumnFamilies(const std::vector<std::string>& cfs,
const Options& options) {
ColumnFamilyOptions cf_opts(options);
size_t cfi = handles_.size();
handles_.resize(cfi + cfs.size());
for (auto cf : cfs) {
ASSERT_OK(db_->CreateColumnFamily(cf_opts, cf, &handles_[cfi++]));
}
}
void CreateAndReopenWithCF(const std::vector<std::string>& cfs,
const Options& options) {
CreateColumnFamilies(cfs, options);
std::vector<std::string> cfs_plus_default = cfs;
cfs_plus_default.insert(cfs_plus_default.begin(), kDefaultColumnFamilyName);
ReopenWithColumnFamilies(cfs_plus_default, options);
}
void ReopenWithColumnFamilies(const std::vector<std::string>& cfs,
const std::vector<Options>& options) {
ASSERT_OK(TryReopenWithColumnFamilies(cfs, options));
}
void ReopenWithColumnFamilies(const std::vector<std::string>& cfs,
const Options& options) {
ASSERT_OK(TryReopenWithColumnFamilies(cfs, options));
}
Status TryReopenWithColumnFamilies(
const std::vector<std::string>& cfs,
const std::vector<Options>& options) {
Close();
EXPECT_EQ(cfs.size(), options.size());
std::vector<ColumnFamilyDescriptor> column_families;
for (size_t i = 0; i < cfs.size(); ++i) {
column_families.push_back(ColumnFamilyDescriptor(cfs[i], options[i]));
}
DBOptions db_opts = DBOptions(options[0]);
return DB::Open(db_opts, dbname_, column_families, &handles_, &db_);
}
Status TryReopenWithColumnFamilies(const std::vector<std::string>& cfs,
const Options& options) {
Close();
std::vector<Options> v_opts(cfs.size(), options);
return TryReopenWithColumnFamilies(cfs, v_opts);
}
void Reopen(const Options& options) {
ASSERT_OK(TryReopen(options));
}
void CompactAll() {
for (auto h : handles_) {
ASSERT_OK(db_->CompactRange(CompactRangeOptions(), h, nullptr, nullptr));
}
}
void Close() {
for (auto h : handles_) {
delete h;
}
handles_.clear();
delete db_;
db_ = nullptr;
}
void DestroyAndReopen(const Options& options) {
// Destroy using last options
Destroy(last_options_);
ASSERT_OK(TryReopen(options));
}
void Destroy(const Options& options) {
Close();
ASSERT_OK(DestroyDB(dbname_, options));
}
Status ReadOnlyReopen(const Options& options) {
return DB::OpenForReadOnly(options, dbname_, &db_);
}
Status ReadOnlyReopenWithColumnFamilies(const std::vector<std::string>& cfs,
const Options& options) {
std::vector<ColumnFamilyDescriptor> column_families;
for (const auto& cf : cfs) {
column_families.emplace_back(cf, options);
}
return DB::OpenForReadOnly(options, dbname_, column_families, &handles_,
&db_);
}
Status TryReopen(const Options& options) {
Close();
last_options_ = options;
return DB::Open(options, dbname_, &db_);
}
Status Flush(int cf = 0) {
if (cf == 0) {
return db_->Flush(FlushOptions());
} else {
return db_->Flush(FlushOptions(), handles_[cf]);
}
}
Status Put(const Slice& k, const Slice& v, WriteOptions wo = WriteOptions()) {
return db_->Put(wo, k, v);
}
Status Put(int cf, const Slice& k, const Slice& v,
WriteOptions wo = WriteOptions()) {
return db_->Put(wo, handles_[cf], k, v);
}
Status Delete(const std::string& k) {
return db_->Delete(WriteOptions(), k);
}
Status Delete(int cf, const std::string& k) {
return db_->Delete(WriteOptions(), handles_[cf], k);
}
std::string Get(const std::string& k, const Snapshot* snapshot = nullptr) {
ReadOptions options;
options.verify_checksums = true;
options.snapshot = snapshot;
std::string result;
Status s = db_->Get(options, k, &result);
if (s.IsNotFound()) {
result = "NOT_FOUND";
} else if (!s.ok()) {
result = s.ToString();
}
return result;
}
std::string Get(int cf, const std::string& k,
const Snapshot* snapshot = nullptr) {
ReadOptions options;
options.verify_checksums = true;
options.snapshot = snapshot;
std::string result;
Status s = db_->Get(options, handles_[cf], k, &result);
if (s.IsNotFound()) {
result = "NOT_FOUND";
} else if (!s.ok()) {
result = s.ToString();
}
return result;
}
};
TEST_F(CheckpointTest, GetSnapshotLink) {
for (uint64_t log_size_for_flush : {0, 1000000}) {
Options options;
DB* snapshotDB;
ReadOptions roptions;
std::string result;
Checkpoint* checkpoint;
options = CurrentOptions();
delete db_;
db_ = nullptr;
ASSERT_OK(DestroyDB(dbname_, options));
// Create a database
Status s;
options.create_if_missing = true;
ASSERT_OK(DB::Open(options, dbname_, &db_));
std::string key = std::string("foo");
ASSERT_OK(Put(key, "v1"));
// Take a snapshot
ASSERT_OK(Checkpoint::Create(db_, &checkpoint));
ASSERT_OK(checkpoint->CreateCheckpoint(snapshot_name_, log_size_for_flush));
ASSERT_OK(Put(key, "v2"));
ASSERT_EQ("v2", Get(key));
ASSERT_OK(Flush());
ASSERT_EQ("v2", Get(key));
// Open snapshot and verify contents while DB is running
options.create_if_missing = false;
ASSERT_OK(DB::Open(options, snapshot_name_, &snapshotDB));
ASSERT_OK(snapshotDB->Get(roptions, key, &result));
ASSERT_EQ("v1", result);
delete snapshotDB;
snapshotDB = nullptr;
delete db_;
db_ = nullptr;
// Destroy original DB
ASSERT_OK(DestroyDB(dbname_, options));
// Open snapshot and verify contents
options.create_if_missing = false;
dbname_ = snapshot_name_;
ASSERT_OK(DB::Open(options, dbname_, &db_));
ASSERT_EQ("v1", Get(key));
delete db_;
db_ = nullptr;
ASSERT_OK(DestroyDB(dbname_, options));
delete checkpoint;
// Restore DB name
dbname_ = test::PerThreadDBPath(env_, "db_test");
}
}
TEST_F(CheckpointTest, ExportColumnFamilyWithLinks) {
// Create a database
Status s;
auto options = CurrentOptions();
options.create_if_missing = true;
CreateAndReopenWithCF({}, options);
// Helper to verify the number of files in metadata and export dir
auto verify_files_exported = [&](const ExportImportFilesMetaData& metadata,
int num_files_expected) {
ASSERT_EQ(metadata.files.size(), num_files_expected);
std::vector<std::string> subchildren;
env_->GetChildren(export_path_, &subchildren);
int num_children = 0;
for (const auto& child : subchildren) {
if (child != "." && child != "..") {
++num_children;
}
}
ASSERT_EQ(num_children, num_files_expected);
};
// Test DefaultColumnFamily
{
const auto key = std::string("foo");
ASSERT_OK(Put(key, "v1"));
Checkpoint* checkpoint;
ASSERT_OK(Checkpoint::Create(db_, &checkpoint));
// Export the Tables and verify
ASSERT_OK(checkpoint->ExportColumnFamily(db_->DefaultColumnFamily(),
export_path_, &metadata_));
verify_files_exported(*metadata_, 1);
ASSERT_EQ(metadata_->db_comparator_name, options.comparator->Name());
test::DestroyDir(env_, export_path_);
delete metadata_;
metadata_ = nullptr;
// Check again after compaction
CompactAll();
ASSERT_OK(Put(key, "v2"));
ASSERT_OK(checkpoint->ExportColumnFamily(db_->DefaultColumnFamily(),
export_path_, &metadata_));
verify_files_exported(*metadata_, 2);
ASSERT_EQ(metadata_->db_comparator_name, options.comparator->Name());
test::DestroyDir(env_, export_path_);
delete metadata_;
metadata_ = nullptr;
delete checkpoint;
}
// Test non default column family with non default comparator
{
auto cf_options = CurrentOptions();
cf_options.comparator = ReverseBytewiseComparator();
ASSERT_OK(db_->CreateColumnFamily(cf_options, "yoyo", &cfh_reverse_comp_));
const auto key = std::string("foo");
ASSERT_OK(db_->Put(WriteOptions(), cfh_reverse_comp_, key, "v1"));
Checkpoint* checkpoint;
ASSERT_OK(Checkpoint::Create(db_, &checkpoint));
// Export the Tables and verify
ASSERT_OK(checkpoint->ExportColumnFamily(cfh_reverse_comp_, export_path_,
&metadata_));
verify_files_exported(*metadata_, 1);
ASSERT_EQ(metadata_->db_comparator_name,
ReverseBytewiseComparator()->Name());
delete checkpoint;
}
}
TEST_F(CheckpointTest, ExportColumnFamilyNegativeTest) {
// Create a database
Status s;
auto options = CurrentOptions();
options.create_if_missing = true;
CreateAndReopenWithCF({}, options);
const auto key = std::string("foo");
ASSERT_OK(Put(key, "v1"));
Checkpoint* checkpoint;
ASSERT_OK(Checkpoint::Create(db_, &checkpoint));
// Export onto existing directory
env_->CreateDirIfMissing(export_path_);
ASSERT_EQ(checkpoint->ExportColumnFamily(db_->DefaultColumnFamily(),
export_path_, &metadata_),
Status::InvalidArgument("Specified export_dir exists"));
test::DestroyDir(env_, export_path_);
// Export with invalid directory specification
export_path_ = "";
ASSERT_EQ(checkpoint->ExportColumnFamily(db_->DefaultColumnFamily(),
export_path_, &metadata_),
Status::InvalidArgument("Specified export_dir invalid"));
delete checkpoint;
}
TEST_F(CheckpointTest, CheckpointCF) {
Options options = CurrentOptions();
CreateAndReopenWithCF({"one", "two", "three", "four", "five"}, options);
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->LoadDependency(
{{"CheckpointTest::CheckpointCF:2", "DBImpl::GetLiveFiles:2"},
{"DBImpl::GetLiveFiles:1", "CheckpointTest::CheckpointCF:1"}});
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
ASSERT_OK(Put(0, "Default", "Default"));
ASSERT_OK(Put(1, "one", "one"));
ASSERT_OK(Put(2, "two", "two"));
ASSERT_OK(Put(3, "three", "three"));
ASSERT_OK(Put(4, "four", "four"));
ASSERT_OK(Put(5, "five", "five"));
DB* snapshotDB;
ReadOptions roptions;
std::string result;
std::vector<ColumnFamilyHandle*> cphandles;
Status s;
// Take a snapshot
ROCKSDB_NAMESPACE::port::Thread t([&]() {
Checkpoint* checkpoint;
ASSERT_OK(Checkpoint::Create(db_, &checkpoint));
ASSERT_OK(checkpoint->CreateCheckpoint(snapshot_name_));
delete checkpoint;
});
TEST_SYNC_POINT("CheckpointTest::CheckpointCF:1");
ASSERT_OK(Put(0, "Default", "Default1"));
ASSERT_OK(Put(1, "one", "eleven"));
ASSERT_OK(Put(2, "two", "twelve"));
ASSERT_OK(Put(3, "three", "thirteen"));
ASSERT_OK(Put(4, "four", "fourteen"));
ASSERT_OK(Put(5, "five", "fifteen"));
TEST_SYNC_POINT("CheckpointTest::CheckpointCF:2");
t.join();
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
ASSERT_OK(Put(1, "one", "twentyone"));
ASSERT_OK(Put(2, "two", "twentytwo"));
ASSERT_OK(Put(3, "three", "twentythree"));
ASSERT_OK(Put(4, "four", "twentyfour"));
ASSERT_OK(Put(5, "five", "twentyfive"));
ASSERT_OK(Flush());
// Open snapshot and verify contents while DB is running
options.create_if_missing = false;
std::vector<std::string> cfs;
cfs= {kDefaultColumnFamilyName, "one", "two", "three", "four", "five"};
std::vector<ColumnFamilyDescriptor> column_families;
for (size_t i = 0; i < cfs.size(); ++i) {
column_families.push_back(ColumnFamilyDescriptor(cfs[i], options));
}
ASSERT_OK(DB::Open(options, snapshot_name_,
column_families, &cphandles, &snapshotDB));
ASSERT_OK(snapshotDB->Get(roptions, cphandles[0], "Default", &result));
ASSERT_EQ("Default1", result);
ASSERT_OK(snapshotDB->Get(roptions, cphandles[1], "one", &result));
ASSERT_EQ("eleven", result);
ASSERT_OK(snapshotDB->Get(roptions, cphandles[2], "two", &result));
for (auto h : cphandles) {
delete h;
}
cphandles.clear();
delete snapshotDB;
snapshotDB = nullptr;
}
TEST_F(CheckpointTest, CheckpointCFNoFlush) {
Options options = CurrentOptions();
CreateAndReopenWithCF({"one", "two", "three", "four", "five"}, options);
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
ASSERT_OK(Put(0, "Default", "Default"));
ASSERT_OK(Put(1, "one", "one"));
Flush();
ASSERT_OK(Put(2, "two", "two"));
DB* snapshotDB;
ReadOptions roptions;
std::string result;
std::vector<ColumnFamilyHandle*> cphandles;
Status s;
// Take a snapshot
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->SetCallBack(
"DBImpl::BackgroundCallFlush:start", [&](void* /*arg*/) {
// Flush should never trigger.
FAIL();
});
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
Checkpoint* checkpoint;
ASSERT_OK(Checkpoint::Create(db_, &checkpoint));
ASSERT_OK(checkpoint->CreateCheckpoint(snapshot_name_, 1000000));
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
delete checkpoint;
ASSERT_OK(Put(1, "one", "two"));
ASSERT_OK(Flush(1));
ASSERT_OK(Put(2, "two", "twentytwo"));
Close();
EXPECT_OK(DestroyDB(dbname_, options));
// Open snapshot and verify contents while DB is running
options.create_if_missing = false;
std::vector<std::string> cfs;
cfs = {kDefaultColumnFamilyName, "one", "two", "three", "four", "five"};
std::vector<ColumnFamilyDescriptor> column_families;
for (size_t i = 0; i < cfs.size(); ++i) {
column_families.push_back(ColumnFamilyDescriptor(cfs[i], options));
}
ASSERT_OK(DB::Open(options, snapshot_name_, column_families, &cphandles,
&snapshotDB));
ASSERT_OK(snapshotDB->Get(roptions, cphandles[0], "Default", &result));
ASSERT_EQ("Default", result);
ASSERT_OK(snapshotDB->Get(roptions, cphandles[1], "one", &result));
ASSERT_EQ("one", result);
ASSERT_OK(snapshotDB->Get(roptions, cphandles[2], "two", &result));
ASSERT_EQ("two", result);
for (auto h : cphandles) {
delete h;
}
cphandles.clear();
delete snapshotDB;
snapshotDB = nullptr;
}
TEST_F(CheckpointTest, CurrentFileModifiedWhileCheckpointing) {
Options options = CurrentOptions();
options.max_manifest_file_size = 0; // always rollover manifest for file add
Reopen(options);
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->LoadDependency(
{// Get past the flush in the checkpoint thread before adding any keys to
// the db so the checkpoint thread won't hit the WriteManifest
// syncpoints.
{"DBImpl::GetLiveFiles:1",
"CheckpointTest::CurrentFileModifiedWhileCheckpointing:PrePut"},
// Roll the manifest during checkpointing right after live files are
// snapshotted.
{"CheckpointImpl::CreateCheckpoint:SavedLiveFiles1",
"VersionSet::LogAndApply:WriteManifest"},
{"VersionSet::LogAndApply:WriteManifestDone",
"CheckpointImpl::CreateCheckpoint:SavedLiveFiles2"}});
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
ROCKSDB_NAMESPACE::port::Thread t([&]() {
Checkpoint* checkpoint;
ASSERT_OK(Checkpoint::Create(db_, &checkpoint));
ASSERT_OK(checkpoint->CreateCheckpoint(snapshot_name_));
delete checkpoint;
});
TEST_SYNC_POINT(
"CheckpointTest::CurrentFileModifiedWhileCheckpointing:PrePut");
ASSERT_OK(Put("Default", "Default1"));
ASSERT_OK(Flush());
t.join();
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
DB* snapshotDB;
// Successful Open() implies that CURRENT pointed to the manifest in the
// checkpoint.
ASSERT_OK(DB::Open(options, snapshot_name_, &snapshotDB));
delete snapshotDB;
snapshotDB = nullptr;
}
TEST_F(CheckpointTest, CurrentFileModifiedWhileCheckpointing2PC) {
Close();
const std::string dbname = test::PerThreadDBPath("transaction_testdb");
ASSERT_OK(DestroyDB(dbname, CurrentOptions()));
env_->DeleteDir(dbname);
Options options = CurrentOptions();
options.allow_2pc = true;
// allow_2pc is implicitly set with tx prepare
// options.allow_2pc = true;
TransactionDBOptions txn_db_options;
TransactionDB* txdb;
Status s = TransactionDB::Open(options, txn_db_options, dbname, &txdb);
assert(s.ok());
ColumnFamilyHandle* cfa;
ColumnFamilyHandle* cfb;
ColumnFamilyOptions cf_options;
ASSERT_OK(txdb->CreateColumnFamily(cf_options, "CFA", &cfa));
WriteOptions write_options;
// Insert something into CFB so lots of log files will be kept
// before creating the checkpoint.
ASSERT_OK(txdb->CreateColumnFamily(cf_options, "CFB", &cfb));
ASSERT_OK(txdb->Put(write_options, cfb, "", ""));
ReadOptions read_options;
std::string value;
TransactionOptions txn_options;
Transaction* txn = txdb->BeginTransaction(write_options, txn_options);
s = txn->SetName("xid");
ASSERT_OK(s);
ASSERT_EQ(txdb->GetTransactionByName("xid"), txn);
s = txn->Put(Slice("foo"), Slice("bar"));
s = txn->Put(cfa, Slice("foocfa"), Slice("barcfa"));
ASSERT_OK(s);
// Writing prepare into middle of first WAL, then flush WALs many times
for (int i = 1; i <= 100000; i++) {
Transaction* tx = txdb->BeginTransaction(write_options, txn_options);
ASSERT_OK(tx->SetName("x"));
ASSERT_OK(tx->Put(Slice(std::to_string(i)), Slice("val")));
ASSERT_OK(tx->Put(cfa, Slice("aaa"), Slice("111")));
ASSERT_OK(tx->Prepare());
ASSERT_OK(tx->Commit());
if (i % 10000 == 0) {
txdb->Flush(FlushOptions());
}
if (i == 88888) {
ASSERT_OK(txn->Prepare());
}
delete tx;
}
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->LoadDependency(
{{"CheckpointImpl::CreateCheckpoint:SavedLiveFiles1",
"CheckpointTest::CurrentFileModifiedWhileCheckpointing2PC:PreCommit"},
{"CheckpointTest::CurrentFileModifiedWhileCheckpointing2PC:PostCommit",
"CheckpointImpl::CreateCheckpoint:SavedLiveFiles2"}});
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
ROCKSDB_NAMESPACE::port::Thread t([&]() {
Checkpoint* checkpoint;
ASSERT_OK(Checkpoint::Create(txdb, &checkpoint));
ASSERT_OK(checkpoint->CreateCheckpoint(snapshot_name_));
delete checkpoint;
});
TEST_SYNC_POINT(
"CheckpointTest::CurrentFileModifiedWhileCheckpointing2PC:PreCommit");
ASSERT_OK(txn->Commit());
delete txn;
TEST_SYNC_POINT(
"CheckpointTest::CurrentFileModifiedWhileCheckpointing2PC:PostCommit");
t.join();
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
// No more than two logs files should exist.
std::vector<std::string> files;
env_->GetChildren(snapshot_name_, &files);
int num_log_files = 0;
for (auto& file : files) {
uint64_t num;
FileType type;
WalFileType log_type;
if (ParseFileName(file, &num, &type, &log_type) && type == kLogFile) {
num_log_files++;
}
}
// One flush after preapare + one outstanding file before checkpoint + one log
// file generated after checkpoint.
ASSERT_LE(num_log_files, 3);
TransactionDB* snapshotDB;
std::vector<ColumnFamilyDescriptor> column_families;
column_families.push_back(
ColumnFamilyDescriptor(kDefaultColumnFamilyName, ColumnFamilyOptions()));
column_families.push_back(
ColumnFamilyDescriptor("CFA", ColumnFamilyOptions()));
column_families.push_back(
ColumnFamilyDescriptor("CFB", ColumnFamilyOptions()));
std::vector<ROCKSDB_NAMESPACE::ColumnFamilyHandle*> cf_handles;
ASSERT_OK(TransactionDB::Open(options, txn_db_options, snapshot_name_,
column_families, &cf_handles, &snapshotDB));
ASSERT_OK(snapshotDB->Get(read_options, "foo", &value));
ASSERT_EQ(value, "bar");
ASSERT_OK(snapshotDB->Get(read_options, cf_handles[1], "foocfa", &value));
ASSERT_EQ(value, "barcfa");
delete cfa;
delete cfb;
delete cf_handles[0];
delete cf_handles[1];
delete cf_handles[2];
delete snapshotDB;
snapshotDB = nullptr;
delete txdb;
}
TEST_F(CheckpointTest, CheckpointInvalidDirectoryName) {
for (std::string checkpoint_dir : {"", "/", "////"}) {
Checkpoint* checkpoint;
ASSERT_OK(Checkpoint::Create(db_, &checkpoint));
ASSERT_TRUE(checkpoint->CreateCheckpoint("").IsInvalidArgument());
delete checkpoint;
}
}
TEST_F(CheckpointTest, CheckpointWithParallelWrites) {
// When run with TSAN, this exposes the data race fixed in
// https://github.com/facebook/rocksdb/pull/3603
ASSERT_OK(Put("key1", "val1"));
port::Thread thread([this]() { ASSERT_OK(Put("key2", "val2")); });
Checkpoint* checkpoint;
ASSERT_OK(Checkpoint::Create(db_, &checkpoint));
ASSERT_OK(checkpoint->CreateCheckpoint(snapshot_name_));
delete checkpoint;
thread.join();
}
TEST_F(CheckpointTest, CheckpointWithUnsyncedDataDropped) {
Options options = CurrentOptions();
std::unique_ptr<FaultInjectionTestEnv> env(new FaultInjectionTestEnv(env_));
options.env = env.get();
Reopen(options);
ASSERT_OK(Put("key1", "val1"));
Checkpoint* checkpoint;
ASSERT_OK(Checkpoint::Create(db_, &checkpoint));
ASSERT_OK(checkpoint->CreateCheckpoint(snapshot_name_));
delete checkpoint;
env->DropUnsyncedFileData();
// make sure it's openable even though whatever data that wasn't synced got
// dropped.
options.env = env_;
DB* snapshot_db;
ASSERT_OK(DB::Open(options, snapshot_name_, &snapshot_db));
ReadOptions read_opts;
std::string get_result;
ASSERT_OK(snapshot_db->Get(read_opts, "key1", &get_result));
ASSERT_EQ("val1", get_result);
delete snapshot_db;
delete db_;
db_ = nullptr;
}
TEST_F(CheckpointTest, CheckpointReadOnlyDB) {
ASSERT_OK(Put("foo", "foo_value"));
ASSERT_OK(Flush());
Close();
Options options = CurrentOptions();
ASSERT_OK(ReadOnlyReopen(options));
Checkpoint* checkpoint = nullptr;
ASSERT_OK(Checkpoint::Create(db_, &checkpoint));
ASSERT_OK(checkpoint->CreateCheckpoint(snapshot_name_));
delete checkpoint;
checkpoint = nullptr;
Close();
DB* snapshot_db = nullptr;
ASSERT_OK(DB::Open(options, snapshot_name_, &snapshot_db));
ReadOptions read_opts;
std::string get_result;
ASSERT_OK(snapshot_db->Get(read_opts, "foo", &get_result));
ASSERT_EQ("foo_value", get_result);
delete snapshot_db;
}
TEST_F(CheckpointTest, CheckpointReadOnlyDBWithMultipleColumnFamilies) {
Options options = CurrentOptions();
CreateAndReopenWithCF({"pikachu", "eevee"}, options);
for (int i = 0; i != 3; ++i) {
ASSERT_OK(Put(i, "foo", "foo_value"));
ASSERT_OK(Flush(i));
}
Close();
Status s = ReadOnlyReopenWithColumnFamilies(
{kDefaultColumnFamilyName, "pikachu", "eevee"}, options);
ASSERT_OK(s);
Checkpoint* checkpoint = nullptr;
ASSERT_OK(Checkpoint::Create(db_, &checkpoint));
ASSERT_OK(checkpoint->CreateCheckpoint(snapshot_name_));
delete checkpoint;
checkpoint = nullptr;
Close();
std::vector<ColumnFamilyDescriptor> column_families{
{kDefaultColumnFamilyName, options},
{"pikachu", options},
{"eevee", options}};
DB* snapshot_db = nullptr;
std::vector<ColumnFamilyHandle*> snapshot_handles;
s = DB::Open(options, snapshot_name_, column_families, &snapshot_handles,
&snapshot_db);
ASSERT_OK(s);
ReadOptions read_opts;
for (int i = 0; i != 3; ++i) {
std::string get_result;
s = snapshot_db->Get(read_opts, snapshot_handles[i], "foo", &get_result);
ASSERT_OK(s);
ASSERT_EQ("foo_value", get_result);
}
for (auto snapshot_h : snapshot_handles) {
delete snapshot_h;
}
snapshot_handles.clear();
delete snapshot_db;
}
} // namespace ROCKSDB_NAMESPACE
int main(int argc, char** argv) {
ROCKSDB_NAMESPACE::port::InstallStackTraceHandler();
::testing::InitGoogleTest(&argc, argv);
return RUN_ALL_TESTS();
}
#else
#include <stdio.h>
int main(int /*argc*/, char** /*argv*/) {
fprintf(stderr, "SKIPPED as Checkpoint is not supported in ROCKSDB_LITE\n");
return 0;
}
#endif // !ROCKSDB_LITE