rocksdb/db/error_handler_fs_test.cc
Zhichao Cao e62fe50634 Introduce FaultInjectionTestFS to test fault File system instead of Env (#6414)
Summary:
In the current code base, we can use FaultInjectionTestEnv to simulate the env issue such as file write/read errors, which are used in most of the test. The PR https://github.com/facebook/rocksdb/issues/5761 introduce the File System as a new Env API. This PR implement the FaultInjectionTestFS, which can be used to simulate when File System has issues such as IO error. user can specify any IOStatus error as input, such that FS corresponding actions will return certain error to the caller.

A set of ErrorHandlerFSTests are introduced for testing
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6414

Test Plan: pass make asan_check, pass error_handler_fs_test.

Differential Revision: D20252421

Pulled By: zhichao-cao

fbshipit-source-id: e922038f8ce7e6d1da329fd0bba7283c4b779a21
2020-03-04 12:35:05 -08:00

887 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.
#ifndef ROCKSDB_LITE
#include "db/db_test_util.h"
#include "port/stack_trace.h"
#include "rocksdb/io_status.h"
#include "rocksdb/perf_context.h"
#include "rocksdb/sst_file_manager.h"
#include "test_util/fault_injection_test_env.h"
#include "test_util/fault_injection_test_fs.h"
#if !defined(ROCKSDB_LITE)
#include "test_util/sync_point.h"
#endif
namespace ROCKSDB_NAMESPACE {
class DBErrorHandlingFSTest : public DBTestBase {
public:
DBErrorHandlingFSTest() : DBTestBase("/db_error_handling_fs_test") {}
std::string GetManifestNameFromLiveFiles() {
std::vector<std::string> live_files;
uint64_t manifest_size;
dbfull()->GetLiveFiles(live_files, &manifest_size, false);
for (auto& file : live_files) {
uint64_t num = 0;
FileType type;
if (ParseFileName(file, &num, &type) && type == kDescriptorFile) {
return file;
}
}
return "";
}
};
class DBErrorHandlingFS : public FileSystemWrapper {
public:
DBErrorHandlingFS()
: FileSystemWrapper(FileSystem::Default().get()),
trig_no_space(false),
trig_io_error(false) {}
void SetTrigNoSpace() { trig_no_space = true; }
void SetTrigIoError() { trig_io_error = true; }
private:
bool trig_no_space;
bool trig_io_error;
};
class ErrorHandlerFSListener : public EventListener {
public:
ErrorHandlerFSListener()
: mutex_(),
cv_(&mutex_),
no_auto_recovery_(false),
recovery_complete_(false),
file_creation_started_(false),
override_bg_error_(false),
file_count_(0),
fault_fs_(nullptr) {}
void OnTableFileCreationStarted(
const TableFileCreationBriefInfo& /*ti*/) override {
InstrumentedMutexLock l(&mutex_);
file_creation_started_ = true;
if (file_count_ > 0) {
if (--file_count_ == 0) {
fault_fs_->SetFilesystemActive(false, file_creation_error_);
file_creation_error_ = IOStatus::OK();
}
}
cv_.SignalAll();
}
void OnErrorRecoveryBegin(BackgroundErrorReason /*reason*/,
Status /*bg_error*/, bool* auto_recovery) override {
if (*auto_recovery && no_auto_recovery_) {
*auto_recovery = false;
}
}
void OnErrorRecoveryCompleted(Status /*old_bg_error*/) override {
InstrumentedMutexLock l(&mutex_);
recovery_complete_ = true;
cv_.SignalAll();
}
bool WaitForRecovery(uint64_t /*abs_time_us*/) {
InstrumentedMutexLock l(&mutex_);
while (!recovery_complete_) {
cv_.Wait(/*abs_time_us*/);
}
if (recovery_complete_) {
recovery_complete_ = false;
return true;
}
return false;
}
void WaitForTableFileCreationStarted(uint64_t /*abs_time_us*/) {
InstrumentedMutexLock l(&mutex_);
while (!file_creation_started_) {
cv_.Wait(/*abs_time_us*/);
}
file_creation_started_ = false;
}
void OnBackgroundError(BackgroundErrorReason /*reason*/,
Status* bg_error) override {
if (override_bg_error_) {
*bg_error = bg_error_;
override_bg_error_ = false;
}
}
void EnableAutoRecovery(bool enable = true) { no_auto_recovery_ = !enable; }
void OverrideBGError(Status bg_err) {
bg_error_ = bg_err;
override_bg_error_ = true;
}
void InjectFileCreationError(FaultInjectionTestFS* fs, int file_count,
IOStatus io_s) {
fault_fs_ = fs;
file_count_ = file_count;
file_creation_error_ = io_s;
}
private:
InstrumentedMutex mutex_;
InstrumentedCondVar cv_;
bool no_auto_recovery_;
bool recovery_complete_;
bool file_creation_started_;
bool override_bg_error_;
int file_count_;
IOStatus file_creation_error_;
Status bg_error_;
FaultInjectionTestFS* fault_fs_;
};
TEST_F(DBErrorHandlingFSTest, FLushWriteError) {
FaultInjectionTestFS* fault_fs =
new FaultInjectionTestFS(FileSystem::Default().get());
std::shared_ptr<ErrorHandlerFSListener> listener(
new ErrorHandlerFSListener());
Options options = GetDefaultOptions();
options.file_system.reset(fault_fs);
options.create_if_missing = true;
options.listeners.emplace_back(listener);
Status s;
listener->EnableAutoRecovery(false);
DestroyAndReopen(options);
Put(Key(0), "val");
SyncPoint::GetInstance()->SetCallBack("FlushJob::Start", [&](void*) {
fault_fs->SetFilesystemActive(false, IOStatus::NoSpace("Out of space"));
});
SyncPoint::GetInstance()->EnableProcessing();
s = Flush();
ASSERT_EQ(s.severity(), ROCKSDB_NAMESPACE::Status::Severity::kHardError);
SyncPoint::GetInstance()->DisableProcessing();
fault_fs->SetFilesystemActive(true);
s = dbfull()->Resume();
ASSERT_EQ(s, Status::OK());
Reopen(options);
ASSERT_EQ("val", Get(Key(0)));
Destroy(options);
}
TEST_F(DBErrorHandlingFSTest, ManifestWriteError) {
FaultInjectionTestFS* fault_fs =
new FaultInjectionTestFS(FileSystem::Default().get());
std::shared_ptr<ErrorHandlerFSListener> listener(
new ErrorHandlerFSListener());
Options options = GetDefaultOptions();
options.file_system.reset(fault_fs);
options.create_if_missing = true;
options.listeners.emplace_back(listener);
Status s;
std::string old_manifest;
std::string new_manifest;
listener->EnableAutoRecovery(false);
DestroyAndReopen(options);
old_manifest = GetManifestNameFromLiveFiles();
Put(Key(0), "val");
Flush();
Put(Key(1), "val");
SyncPoint::GetInstance()->SetCallBack(
"VersionSet::LogAndApply:WriteManifest", [&](void*) {
fault_fs->SetFilesystemActive(false, IOStatus::NoSpace("Out of space"));
});
SyncPoint::GetInstance()->EnableProcessing();
s = Flush();
ASSERT_EQ(s.severity(), ROCKSDB_NAMESPACE::Status::Severity::kHardError);
SyncPoint::GetInstance()->ClearAllCallBacks();
SyncPoint::GetInstance()->DisableProcessing();
fault_fs->SetFilesystemActive(true);
s = dbfull()->Resume();
ASSERT_EQ(s, Status::OK());
new_manifest = GetManifestNameFromLiveFiles();
ASSERT_NE(new_manifest, old_manifest);
Reopen(options);
ASSERT_EQ("val", Get(Key(0)));
ASSERT_EQ("val", Get(Key(1)));
Close();
}
TEST_F(DBErrorHandlingFSTest, DoubleManifestWriteError) {
FaultInjectionTestFS* fault_fs =
new FaultInjectionTestFS(FileSystem::Default().get());
std::shared_ptr<ErrorHandlerFSListener> listener(
new ErrorHandlerFSListener());
Options options = GetDefaultOptions();
options.file_system.reset(fault_fs);
options.create_if_missing = true;
options.listeners.emplace_back(listener);
Status s;
std::string old_manifest;
std::string new_manifest;
listener->EnableAutoRecovery(false);
DestroyAndReopen(options);
old_manifest = GetManifestNameFromLiveFiles();
Put(Key(0), "val");
Flush();
Put(Key(1), "val");
SyncPoint::GetInstance()->SetCallBack(
"VersionSet::LogAndApply:WriteManifest", [&](void*) {
fault_fs->SetFilesystemActive(false, IOStatus::NoSpace("Out of space"));
});
SyncPoint::GetInstance()->EnableProcessing();
s = Flush();
ASSERT_EQ(s.severity(), ROCKSDB_NAMESPACE::Status::Severity::kHardError);
fault_fs->SetFilesystemActive(true);
// This Resume() will attempt to create a new manifest file and fail again
s = dbfull()->Resume();
ASSERT_EQ(s.severity(), ROCKSDB_NAMESPACE::Status::Severity::kHardError);
fault_fs->SetFilesystemActive(true);
SyncPoint::GetInstance()->ClearAllCallBacks();
SyncPoint::GetInstance()->DisableProcessing();
// A successful Resume() will create a new manifest file
s = dbfull()->Resume();
ASSERT_EQ(s, Status::OK());
new_manifest = GetManifestNameFromLiveFiles();
ASSERT_NE(new_manifest, old_manifest);
Reopen(options);
ASSERT_EQ("val", Get(Key(0)));
ASSERT_EQ("val", Get(Key(1)));
Close();
}
TEST_F(DBErrorHandlingFSTest, CompactionManifestWriteError) {
FaultInjectionTestFS* fault_fs =
new FaultInjectionTestFS(FileSystem::Default().get());
std::shared_ptr<ErrorHandlerFSListener> listener(
new ErrorHandlerFSListener());
Options options = GetDefaultOptions();
options.file_system.reset(fault_fs);
options.create_if_missing = true;
options.level0_file_num_compaction_trigger = 2;
options.listeners.emplace_back(listener);
Status s;
std::string old_manifest;
std::string new_manifest;
std::atomic<bool> fail_manifest(false);
DestroyAndReopen(options);
old_manifest = GetManifestNameFromLiveFiles();
Put(Key(0), "val");
Put(Key(2), "val");
s = Flush();
ASSERT_EQ(s, Status::OK());
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->LoadDependency(
// Wait for flush of 2nd L0 file before starting compaction
{{"DBImpl::FlushMemTable:FlushMemTableFinished",
"BackgroundCallCompaction:0"},
// Wait for compaction to detect manifest write error
{"BackgroundCallCompaction:1", "CompactionManifestWriteError:0"},
// Make compaction thread wait for error to be cleared
{"CompactionManifestWriteError:1",
"DBImpl::BackgroundCallCompaction:FoundObsoleteFiles"},
// Wait for DB instance to clear bg_error before calling
// TEST_WaitForCompact
{"SstFileManagerImpl::ErrorCleared", "CompactionManifestWriteError:2"}});
// trigger manifest write failure in compaction thread
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->SetCallBack(
"BackgroundCallCompaction:0", [&](void*) { fail_manifest.store(true); });
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->SetCallBack(
"VersionSet::LogAndApply:WriteManifest", [&](void*) {
if (fail_manifest.load()) {
fault_fs->SetFilesystemActive(false,
IOStatus::NoSpace("Out of space"));
}
});
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
Put(Key(1), "val");
// This Flush will trigger a compaction, which will fail when appending to
// the manifest
s = Flush();
ASSERT_EQ(s, Status::OK());
TEST_SYNC_POINT("CompactionManifestWriteError:0");
// Clear all errors so when the compaction is retried, it will succeed
fault_fs->SetFilesystemActive(true);
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->ClearAllCallBacks();
TEST_SYNC_POINT("CompactionManifestWriteError:1");
TEST_SYNC_POINT("CompactionManifestWriteError:2");
s = dbfull()->TEST_WaitForCompact();
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
ASSERT_EQ(s, Status::OK());
new_manifest = GetManifestNameFromLiveFiles();
ASSERT_NE(new_manifest, old_manifest);
Reopen(options);
ASSERT_EQ("val", Get(Key(0)));
ASSERT_EQ("val", Get(Key(1)));
ASSERT_EQ("val", Get(Key(2)));
Close();
}
TEST_F(DBErrorHandlingFSTest, CompactionWriteError) {
FaultInjectionTestFS* fault_fs =
new FaultInjectionTestFS(FileSystem::Default().get());
std::shared_ptr<ErrorHandlerFSListener> listener(
new ErrorHandlerFSListener());
Options options = GetDefaultOptions();
options.file_system.reset(fault_fs);
options.create_if_missing = true;
options.level0_file_num_compaction_trigger = 2;
options.listeners.emplace_back(listener);
Status s;
DestroyAndReopen(options);
Put(Key(0), "va;");
Put(Key(2), "va;");
s = Flush();
ASSERT_EQ(s, Status::OK());
listener->OverrideBGError(
Status(Status::NoSpace(), Status::Severity::kHardError));
listener->EnableAutoRecovery(false);
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->LoadDependency(
{{"DBImpl::FlushMemTable:FlushMemTableFinished",
"BackgroundCallCompaction:0"}});
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->SetCallBack(
"BackgroundCallCompaction:0", [&](void*) {
fault_fs->SetFilesystemActive(false, IOStatus::NoSpace("Out of space"));
});
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
Put(Key(1), "val");
s = Flush();
ASSERT_EQ(s, Status::OK());
s = dbfull()->TEST_WaitForCompact();
ASSERT_EQ(s.severity(), ROCKSDB_NAMESPACE::Status::Severity::kHardError);
fault_fs->SetFilesystemActive(true);
s = dbfull()->Resume();
ASSERT_EQ(s, Status::OK());
Destroy(options);
}
TEST_F(DBErrorHandlingFSTest, CorruptionError) {
FaultInjectionTestFS* fault_fs =
new FaultInjectionTestFS(FileSystem::Default().get());
Options options = GetDefaultOptions();
options.file_system.reset(fault_fs);
options.create_if_missing = true;
options.level0_file_num_compaction_trigger = 2;
Status s;
DestroyAndReopen(options);
Put(Key(0), "va;");
Put(Key(2), "va;");
s = Flush();
ASSERT_EQ(s, Status::OK());
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->LoadDependency(
{{"DBImpl::FlushMemTable:FlushMemTableFinished",
"BackgroundCallCompaction:0"}});
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->SetCallBack(
"BackgroundCallCompaction:0", [&](void*) {
fault_fs->SetFilesystemActive(false,
IOStatus::Corruption("Corruption"));
});
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
Put(Key(1), "val");
s = Flush();
ASSERT_EQ(s, Status::OK());
s = dbfull()->TEST_WaitForCompact();
ASSERT_EQ(s.severity(),
ROCKSDB_NAMESPACE::Status::Severity::kUnrecoverableError);
fault_fs->SetFilesystemActive(true);
s = dbfull()->Resume();
ASSERT_NE(s, Status::OK());
Destroy(options);
}
TEST_F(DBErrorHandlingFSTest, AutoRecoverFlushError) {
FaultInjectionTestFS* fault_fs =
new FaultInjectionTestFS(FileSystem::Default().get());
std::shared_ptr<ErrorHandlerFSListener> listener(
new ErrorHandlerFSListener());
Options options = GetDefaultOptions();
options.file_system.reset(fault_fs);
options.create_if_missing = true;
options.listeners.emplace_back(listener);
Status s;
listener->EnableAutoRecovery();
DestroyAndReopen(options);
Put(Key(0), "val");
SyncPoint::GetInstance()->SetCallBack("FlushJob::Start", [&](void*) {
fault_fs->SetFilesystemActive(false, IOStatus::NoSpace("Out of space"));
});
SyncPoint::GetInstance()->EnableProcessing();
s = Flush();
ASSERT_EQ(s.severity(), ROCKSDB_NAMESPACE::Status::Severity::kHardError);
SyncPoint::GetInstance()->DisableProcessing();
fault_fs->SetFilesystemActive(true);
ASSERT_EQ(listener->WaitForRecovery(5000000), true);
s = Put(Key(1), "val");
ASSERT_EQ(s, Status::OK());
Reopen(options);
ASSERT_EQ("val", Get(Key(0)));
ASSERT_EQ("val", Get(Key(1)));
Destroy(options);
}
TEST_F(DBErrorHandlingFSTest, FailRecoverFlushError) {
FaultInjectionTestFS* fault_fs =
new FaultInjectionTestFS(FileSystem::Default().get());
std::shared_ptr<ErrorHandlerFSListener> listener(
new ErrorHandlerFSListener());
Options options = GetDefaultOptions();
options.file_system.reset(fault_fs);
options.create_if_missing = true;
options.listeners.emplace_back(listener);
Status s;
listener->EnableAutoRecovery();
DestroyAndReopen(options);
Put(Key(0), "val");
SyncPoint::GetInstance()->SetCallBack("FlushJob::Start", [&](void*) {
fault_fs->SetFilesystemActive(false, IOStatus::NoSpace("Out of space"));
});
SyncPoint::GetInstance()->EnableProcessing();
s = Flush();
ASSERT_EQ(s.severity(), ROCKSDB_NAMESPACE::Status::Severity::kHardError);
// We should be able to shutdown the database while auto recovery is going
// on in the background
Close();
DestroyDB(dbname_, options);
}
TEST_F(DBErrorHandlingFSTest, WALWriteError) {
FaultInjectionTestFS* fault_fs =
new FaultInjectionTestFS(FileSystem::Default().get());
std::shared_ptr<ErrorHandlerFSListener> listener(
new ErrorHandlerFSListener());
Options options = GetDefaultOptions();
options.file_system.reset(fault_fs);
options.create_if_missing = true;
options.writable_file_max_buffer_size = 32768;
options.listeners.emplace_back(listener);
Status s;
Random rnd(301);
listener->EnableAutoRecovery();
DestroyAndReopen(options);
{
WriteBatch batch;
for (auto i = 0; i < 100; ++i) {
batch.Put(Key(i), RandomString(&rnd, 1024));
}
WriteOptions wopts;
wopts.sync = true;
ASSERT_EQ(dbfull()->Write(wopts, &batch), Status::OK());
};
{
WriteBatch batch;
int write_error = 0;
for (auto i = 100; i < 199; ++i) {
batch.Put(Key(i), RandomString(&rnd, 1024));
}
SyncPoint::GetInstance()->SetCallBack(
"WritableFileWriter::Append:BeforePrepareWrite", [&](void*) {
write_error++;
if (write_error > 2) {
fault_fs->SetFilesystemActive(false,
IOStatus::NoSpace("Out of space"));
}
});
SyncPoint::GetInstance()->EnableProcessing();
WriteOptions wopts;
wopts.sync = true;
s = dbfull()->Write(wopts, &batch);
ASSERT_EQ(s, s.NoSpace());
}
SyncPoint::GetInstance()->DisableProcessing();
fault_fs->SetFilesystemActive(true);
ASSERT_EQ(listener->WaitForRecovery(5000000), true);
for (auto i = 0; i < 199; ++i) {
if (i < 100) {
ASSERT_NE(Get(Key(i)), "NOT_FOUND");
} else {
ASSERT_EQ(Get(Key(i)), "NOT_FOUND");
}
}
Reopen(options);
for (auto i = 0; i < 199; ++i) {
if (i < 100) {
ASSERT_NE(Get(Key(i)), "NOT_FOUND");
} else {
ASSERT_EQ(Get(Key(i)), "NOT_FOUND");
}
}
Close();
}
TEST_F(DBErrorHandlingFSTest, MultiCFWALWriteError) {
FaultInjectionTestFS* fault_fs =
new FaultInjectionTestFS(FileSystem::Default().get());
std::shared_ptr<ErrorHandlerFSListener> listener(
new ErrorHandlerFSListener());
Options options = GetDefaultOptions();
options.file_system.reset(fault_fs);
options.create_if_missing = true;
options.writable_file_max_buffer_size = 32768;
options.listeners.emplace_back(listener);
Status s;
Random rnd(301);
listener->EnableAutoRecovery();
CreateAndReopenWithCF({"one", "two", "three"}, options);
{
WriteBatch batch;
for (auto i = 1; i < 4; ++i) {
for (auto j = 0; j < 100; ++j) {
batch.Put(handles_[i], Key(j), RandomString(&rnd, 1024));
}
}
WriteOptions wopts;
wopts.sync = true;
ASSERT_EQ(dbfull()->Write(wopts, &batch), Status::OK());
};
{
WriteBatch batch;
int write_error = 0;
// Write to one CF
for (auto i = 100; i < 199; ++i) {
batch.Put(handles_[2], Key(i), RandomString(&rnd, 1024));
}
SyncPoint::GetInstance()->SetCallBack(
"WritableFileWriter::Append:BeforePrepareWrite", [&](void*) {
write_error++;
if (write_error > 2) {
fault_fs->SetFilesystemActive(false,
IOStatus::NoSpace("Out of space"));
}
});
SyncPoint::GetInstance()->EnableProcessing();
WriteOptions wopts;
wopts.sync = true;
s = dbfull()->Write(wopts, &batch);
ASSERT_EQ(s, s.NoSpace());
}
SyncPoint::GetInstance()->DisableProcessing();
fault_fs->SetFilesystemActive(true);
ASSERT_EQ(listener->WaitForRecovery(5000000), true);
for (auto i = 1; i < 4; ++i) {
// Every CF should have been flushed
ASSERT_EQ(NumTableFilesAtLevel(0, i), 1);
}
for (auto i = 1; i < 4; ++i) {
for (auto j = 0; j < 199; ++j) {
if (j < 100) {
ASSERT_NE(Get(i, Key(j)), "NOT_FOUND");
} else {
ASSERT_EQ(Get(i, Key(j)), "NOT_FOUND");
}
}
}
ReopenWithColumnFamilies({"default", "one", "two", "three"}, options);
for (auto i = 1; i < 4; ++i) {
for (auto j = 0; j < 199; ++j) {
if (j < 100) {
ASSERT_NE(Get(i, Key(j)), "NOT_FOUND");
} else {
ASSERT_EQ(Get(i, Key(j)), "NOT_FOUND");
}
}
}
Close();
}
TEST_F(DBErrorHandlingFSTest, MultiDBCompactionError) {
FaultInjectionTestEnv* def_env = new FaultInjectionTestEnv(Env::Default());
std::vector<FaultInjectionTestFS*> fault_fs;
std::vector<Options> options;
std::vector<std::shared_ptr<ErrorHandlerFSListener>> listener;
std::vector<DB*> db;
std::shared_ptr<SstFileManager> sfm(NewSstFileManager(def_env));
int kNumDbInstances = 3;
Random rnd(301);
for (auto i = 0; i < kNumDbInstances; ++i) {
listener.emplace_back(new ErrorHandlerFSListener());
options.emplace_back(GetDefaultOptions());
fault_fs.emplace_back(
new FaultInjectionTestFS(FileSystem::Default().get()));
options[i].create_if_missing = true;
options[i].level0_file_num_compaction_trigger = 2;
options[i].writable_file_max_buffer_size = 32768;
options[i].file_system.reset(fault_fs[i]);
options[i].listeners.emplace_back(listener[i]);
options[i].sst_file_manager = sfm;
DB* dbptr;
char buf[16];
listener[i]->EnableAutoRecovery();
// Setup for returning error for the 3rd SST, which would be level 1
listener[i]->InjectFileCreationError(fault_fs[i], 3,
IOStatus::NoSpace("Out of space"));
snprintf(buf, sizeof(buf), "_%d", i);
DestroyDB(dbname_ + std::string(buf), options[i]);
ASSERT_EQ(DB::Open(options[i], dbname_ + std::string(buf), &dbptr),
Status::OK());
db.emplace_back(dbptr);
}
for (auto i = 0; i < kNumDbInstances; ++i) {
WriteBatch batch;
for (auto j = 0; j <= 100; ++j) {
batch.Put(Key(j), RandomString(&rnd, 1024));
}
WriteOptions wopts;
wopts.sync = true;
ASSERT_EQ(db[i]->Write(wopts, &batch), Status::OK());
ASSERT_EQ(db[i]->Flush(FlushOptions()), Status::OK());
}
def_env->SetFilesystemActive(false, Status::NoSpace("Out of space"));
for (auto i = 0; i < kNumDbInstances; ++i) {
WriteBatch batch;
// Write to one CF
for (auto j = 100; j < 199; ++j) {
batch.Put(Key(j), RandomString(&rnd, 1024));
}
WriteOptions wopts;
wopts.sync = true;
ASSERT_EQ(db[i]->Write(wopts, &batch), Status::OK());
ASSERT_EQ(db[i]->Flush(FlushOptions()), Status::OK());
}
for (auto i = 0; i < kNumDbInstances; ++i) {
Status s = static_cast<DBImpl*>(db[i])->TEST_WaitForCompact(true);
ASSERT_EQ(s.severity(), Status::Severity::kSoftError);
fault_fs[i]->SetFilesystemActive(true);
}
def_env->SetFilesystemActive(true);
for (auto i = 0; i < kNumDbInstances; ++i) {
std::string prop;
ASSERT_EQ(listener[i]->WaitForRecovery(5000000), true);
ASSERT_EQ(static_cast<DBImpl*>(db[i])->TEST_WaitForCompact(true),
Status::OK());
EXPECT_TRUE(db[i]->GetProperty(
"rocksdb.num-files-at-level" + NumberToString(0), &prop));
EXPECT_EQ(atoi(prop.c_str()), 0);
EXPECT_TRUE(db[i]->GetProperty(
"rocksdb.num-files-at-level" + NumberToString(1), &prop));
EXPECT_EQ(atoi(prop.c_str()), 1);
}
for (auto i = 0; i < kNumDbInstances; ++i) {
char buf[16];
snprintf(buf, sizeof(buf), "_%d", i);
delete db[i];
fault_fs[i]->SetFilesystemActive(true);
if (getenv("KEEP_DB")) {
printf("DB is still at %s%s\n", dbname_.c_str(), buf);
} else {
Status s = DestroyDB(dbname_ + std::string(buf), options[i]);
}
}
options.clear();
sfm.reset();
delete def_env;
}
TEST_F(DBErrorHandlingFSTest, MultiDBVariousErrors) {
FaultInjectionTestEnv* def_env = new FaultInjectionTestEnv(Env::Default());
std::vector<FaultInjectionTestFS*> fault_fs;
std::vector<Options> options;
std::vector<std::shared_ptr<ErrorHandlerFSListener>> listener;
std::vector<DB*> db;
std::shared_ptr<SstFileManager> sfm(NewSstFileManager(def_env));
int kNumDbInstances = 3;
Random rnd(301);
for (auto i = 0; i < kNumDbInstances; ++i) {
listener.emplace_back(new ErrorHandlerFSListener());
options.emplace_back(GetDefaultOptions());
fault_fs.emplace_back(
new FaultInjectionTestFS(FileSystem::Default().get()));
options[i].create_if_missing = true;
options[i].level0_file_num_compaction_trigger = 2;
options[i].writable_file_max_buffer_size = 32768;
options[i].file_system.reset(fault_fs[i]);
options[i].listeners.emplace_back(listener[i]);
options[i].sst_file_manager = sfm;
DB* dbptr;
char buf[16];
listener[i]->EnableAutoRecovery();
switch (i) {
case 0:
// Setup for returning error for the 3rd SST, which would be level 1
listener[i]->InjectFileCreationError(fault_fs[i], 3,
IOStatus::NoSpace("Out of space"));
break;
case 1:
// Setup for returning error after the 1st SST, which would result
// in a hard error
listener[i]->InjectFileCreationError(fault_fs[i], 2,
IOStatus::NoSpace("Out of space"));
break;
default:
break;
}
snprintf(buf, sizeof(buf), "_%d", i);
DestroyDB(dbname_ + std::string(buf), options[i]);
ASSERT_EQ(DB::Open(options[i], dbname_ + std::string(buf), &dbptr),
Status::OK());
db.emplace_back(dbptr);
}
for (auto i = 0; i < kNumDbInstances; ++i) {
WriteBatch batch;
for (auto j = 0; j <= 100; ++j) {
batch.Put(Key(j), RandomString(&rnd, 1024));
}
WriteOptions wopts;
wopts.sync = true;
ASSERT_EQ(db[i]->Write(wopts, &batch), Status::OK());
ASSERT_EQ(db[i]->Flush(FlushOptions()), Status::OK());
}
def_env->SetFilesystemActive(false, Status::NoSpace("Out of space"));
for (auto i = 0; i < kNumDbInstances; ++i) {
WriteBatch batch;
// Write to one CF
for (auto j = 100; j < 199; ++j) {
batch.Put(Key(j), RandomString(&rnd, 1024));
}
WriteOptions wopts;
wopts.sync = true;
ASSERT_EQ(db[i]->Write(wopts, &batch), Status::OK());
if (i != 1) {
ASSERT_EQ(db[i]->Flush(FlushOptions()), Status::OK());
} else {
ASSERT_EQ(db[i]->Flush(FlushOptions()), Status::NoSpace());
}
}
for (auto i = 0; i < kNumDbInstances; ++i) {
Status s = static_cast<DBImpl*>(db[i])->TEST_WaitForCompact(true);
switch (i) {
case 0:
ASSERT_EQ(s.severity(), Status::Severity::kSoftError);
break;
case 1:
ASSERT_EQ(s.severity(), Status::Severity::kHardError);
break;
case 2:
ASSERT_EQ(s, Status::OK());
break;
}
fault_fs[i]->SetFilesystemActive(true);
}
def_env->SetFilesystemActive(true);
for (auto i = 0; i < kNumDbInstances; ++i) {
std::string prop;
if (i < 2) {
ASSERT_EQ(listener[i]->WaitForRecovery(5000000), true);
}
if (i == 1) {
ASSERT_EQ(static_cast<DBImpl*>(db[i])->TEST_WaitForCompact(true),
Status::OK());
}
EXPECT_TRUE(db[i]->GetProperty(
"rocksdb.num-files-at-level" + NumberToString(0), &prop));
EXPECT_EQ(atoi(prop.c_str()), 0);
EXPECT_TRUE(db[i]->GetProperty(
"rocksdb.num-files-at-level" + NumberToString(1), &prop));
EXPECT_EQ(atoi(prop.c_str()), 1);
}
for (auto i = 0; i < kNumDbInstances; ++i) {
char buf[16];
snprintf(buf, sizeof(buf), "_%d", i);
fault_fs[i]->SetFilesystemActive(true);
delete db[i];
if (getenv("KEEP_DB")) {
printf("DB is still at %s%s\n", dbname_.c_str(), buf);
} else {
DestroyDB(dbname_ + std::string(buf), options[i]);
}
}
options.clear();
delete def_env;
}
} // 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 Cuckoo table is not supported in ROCKSDB_LITE\n");
return 0;
}
#endif // ROCKSDB_LITE