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error_handler_fs_test.cc
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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 <memory>
#include "db/db_test_util.h"
#include "file/sst_file_manager_impl.h"
#include "port/stack_trace.h"
#include "rocksdb/io_status.h"
#include "rocksdb/sst_file_manager.h"
#include "test_util/sync_point.h"
#include "test_util/testharness.h"
#include "util/random.h"
#include "utilities/fault_injection_env.h"
#include "utilities/fault_injection_fs.h"
namespace ROCKSDB_NAMESPACE {
class DBErrorHandlingFSTest : public DBTestBase {
public:
DBErrorHandlingFSTest()
: DBTestBase("db_error_handling_fs_test", /*env_do_fsync=*/true) {
fault_fs_.reset(new FaultInjectionTestFS(env_->GetFileSystem()));
fault_env_.reset(new CompositeEnvWrapper(env_, fault_fs_));
}
~DBErrorHandlingFSTest() {
// Before destroying fault_env_
SyncPoint::GetInstance()->DisableProcessing();
SyncPoint::GetInstance()->LoadDependency({});
SyncPoint::GetInstance()->ClearAllCallBacks();
Close();
}
std::string GetManifestNameFromLiveFiles() {
std::vector<std::string> live_files;
uint64_t manifest_size;
Status s = dbfull()->GetLiveFiles(live_files, &manifest_size, false);
if (!s.ok()) {
return "";
}
for (auto& file : live_files) {
uint64_t num = 0;
FileType type;
if (ParseFileName(file, &num, &type) && type == kDescriptorFile) {
return file;
}
}
return "";
}
std::shared_ptr<FaultInjectionTestFS> fault_fs_;
std::unique_ptr<Env> fault_env_;
};
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) {}
~ErrorHandlerFSListener() {
file_creation_error_.PermitUncheckedError();
bg_error_.PermitUncheckedError();
new_bg_error_.PermitUncheckedError();
}
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 {
bg_error.PermitUncheckedError();
if (*auto_recovery && no_auto_recovery_) {
*auto_recovery = false;
}
}
void OnErrorRecoveryEnd(const BackgroundErrorRecoveryInfo& info) override {
InstrumentedMutexLock l(&mutex_);
recovery_complete_ = true;
cv_.SignalAll();
new_bg_error_ = info.new_bg_error;
}
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;
}
Status new_bg_error() { return new_bg_error_; }
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_;
Status new_bg_error_;
FaultInjectionTestFS* fault_fs_;
};
TEST_F(DBErrorHandlingFSTest, FlushWriteError) {
std::shared_ptr<ErrorHandlerFSListener> listener =
std::make_shared<ErrorHandlerFSListener>();
Options options = GetDefaultOptions();
options.env = fault_env_.get();
options.create_if_missing = true;
options.listeners.emplace_back(listener);
options.statistics = CreateDBStatistics();
Status s;
listener->EnableAutoRecovery(false);
DestroyAndReopen(options);
ASSERT_OK(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_OK(s);
ASSERT_EQ(1, options.statistics->getAndResetTickerCount(
ERROR_HANDLER_BG_ERROR_COUNT));
ASSERT_EQ(1, options.statistics->getAndResetTickerCount(
ERROR_HANDLER_BG_IO_ERROR_COUNT));
ASSERT_EQ(0, options.statistics->getAndResetTickerCount(
ERROR_HANDLER_BG_RETRYABLE_IO_ERROR_COUNT));
ASSERT_EQ(0, options.statistics->getAndResetTickerCount(
ERROR_HANDLER_AUTORESUME_COUNT));
ASSERT_EQ(0, options.statistics->getAndResetTickerCount(
ERROR_HANDLER_AUTORESUME_RETRY_TOTAL_COUNT));
ASSERT_EQ(0, options.statistics->getAndResetTickerCount(
ERROR_HANDLER_AUTORESUME_SUCCESS_COUNT));
Reopen(options);
ASSERT_EQ("val", Get(Key(0)));
Destroy(options);
}
// All the NoSpace IOError will be handled as the regular BG Error no matter the
// retryable flag is set of not. So the auto resume for retryable IO Error will
// not be triggered. Also, it is mapped as hard error.
TEST_F(DBErrorHandlingFSTest, FlushWriteNoSpaceError) {
std::shared_ptr<ErrorHandlerFSListener> listener =
std::make_shared<ErrorHandlerFSListener>();
Options options = GetDefaultOptions();
options.env = fault_env_.get();
options.create_if_missing = true;
options.listeners.emplace_back(listener);
options.max_bgerror_resume_count = 2;
options.bgerror_resume_retry_interval = 100000; // 0.1 second
options.statistics = CreateDBStatistics();
Status s;
listener->EnableAutoRecovery(false);
DestroyAndReopen(options);
IOStatus error_msg = IOStatus::NoSpace("Retryable IO Error");
error_msg.SetRetryable(true);
ASSERT_OK(Put(Key(1), "val1"));
SyncPoint::GetInstance()->SetCallBack(
"BuildTable:BeforeFinishBuildTable",
[&](void*) { fault_fs_->SetFilesystemActive(false, error_msg); });
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_OK(s);
ASSERT_EQ(1, options.statistics->getAndResetTickerCount(
ERROR_HANDLER_BG_ERROR_COUNT));
ASSERT_EQ(1, options.statistics->getAndResetTickerCount(
ERROR_HANDLER_BG_IO_ERROR_COUNT));
ASSERT_EQ(0, options.statistics->getAndResetTickerCount(
ERROR_HANDLER_BG_RETRYABLE_IO_ERROR_COUNT));
ASSERT_EQ(0, options.statistics->getAndResetTickerCount(
ERROR_HANDLER_AUTORESUME_COUNT));
ASSERT_EQ(0, options.statistics->getAndResetTickerCount(
ERROR_HANDLER_AUTORESUME_RETRY_TOTAL_COUNT));
ASSERT_EQ(0, options.statistics->getAndResetTickerCount(
ERROR_HANDLER_AUTORESUME_SUCCESS_COUNT));
Destroy(options);
}
TEST_F(DBErrorHandlingFSTest, FlushWriteRetryableError) {
std::shared_ptr<ErrorHandlerFSListener> listener =
std::make_shared<ErrorHandlerFSListener>();
Options options = GetDefaultOptions();
options.env = fault_env_.get();
options.create_if_missing = true;
options.listeners.emplace_back(listener);
options.max_bgerror_resume_count = 0;
options.statistics = CreateDBStatistics();
Status s;
listener->EnableAutoRecovery(false);
DestroyAndReopen(options);
IOStatus error_msg = IOStatus::IOError("Retryable IO Error");
error_msg.SetRetryable(true);
ASSERT_OK(Put(Key(1), "val1"));
SyncPoint::GetInstance()->SetCallBack(
"BuildTable:BeforeFinishBuildTable",
[&](void*) { fault_fs_->SetFilesystemActive(false, error_msg); });
SyncPoint::GetInstance()->EnableProcessing();
s = Flush();
ASSERT_EQ(s.severity(), ROCKSDB_NAMESPACE::Status::Severity::kSoftError);
SyncPoint::GetInstance()->DisableProcessing();
fault_fs_->SetFilesystemActive(true);
s = dbfull()->Resume();
ASSERT_OK(s);
ASSERT_EQ(1, options.statistics->getAndResetTickerCount(
ERROR_HANDLER_BG_ERROR_COUNT));
ASSERT_EQ(1, options.statistics->getAndResetTickerCount(
ERROR_HANDLER_BG_IO_ERROR_COUNT));
ASSERT_EQ(1, options.statistics->getAndResetTickerCount(
ERROR_HANDLER_BG_RETRYABLE_IO_ERROR_COUNT));
ASSERT_EQ(0, options.statistics->getAndResetTickerCount(
ERROR_HANDLER_AUTORESUME_COUNT));
ASSERT_EQ(0, options.statistics->getAndResetTickerCount(
ERROR_HANDLER_AUTORESUME_RETRY_TOTAL_COUNT));
ASSERT_EQ(0, options.statistics->getAndResetTickerCount(
ERROR_HANDLER_AUTORESUME_SUCCESS_COUNT));
Reopen(options);
ASSERT_EQ("val1", Get(Key(1)));
ASSERT_OK(Put(Key(2), "val2"));
SyncPoint::GetInstance()->SetCallBack(
"BuildTable:BeforeSyncTable",
[&](void*) { fault_fs_->SetFilesystemActive(false, error_msg); });
SyncPoint::GetInstance()->EnableProcessing();
s = Flush();
ASSERT_EQ(s.severity(), ROCKSDB_NAMESPACE::Status::Severity::kSoftError);
SyncPoint::GetInstance()->DisableProcessing();
fault_fs_->SetFilesystemActive(true);
s = dbfull()->Resume();
ASSERT_OK(s);
Reopen(options);
ASSERT_EQ("val2", Get(Key(2)));
ASSERT_OK(Put(Key(3), "val3"));
SyncPoint::GetInstance()->SetCallBack(
"BuildTable:BeforeCloseTableFile",
[&](void*) { fault_fs_->SetFilesystemActive(false, error_msg); });
SyncPoint::GetInstance()->EnableProcessing();
s = Flush();
ASSERT_EQ(s.severity(), ROCKSDB_NAMESPACE::Status::Severity::kSoftError);
SyncPoint::GetInstance()->DisableProcessing();
fault_fs_->SetFilesystemActive(true);
s = dbfull()->Resume();
ASSERT_OK(s);
Reopen(options);
ASSERT_EQ("val3", Get(Key(3)));
Destroy(options);
}
TEST_F(DBErrorHandlingFSTest, FlushWriteFileScopeError) {
std::shared_ptr<ErrorHandlerFSListener> listener =
std::make_shared<ErrorHandlerFSListener>();
Options options = GetDefaultOptions();
options.env = fault_env_.get();
options.create_if_missing = true;
options.listeners.emplace_back(listener);
options.max_bgerror_resume_count = 0;
Status s;
listener->EnableAutoRecovery(false);
DestroyAndReopen(options);
IOStatus error_msg = IOStatus::IOError("File Scope Data Loss Error");
error_msg.SetDataLoss(true);
error_msg.SetScope(
ROCKSDB_NAMESPACE::IOStatus::IOErrorScope::kIOErrorScopeFile);
error_msg.SetRetryable(false);
ASSERT_OK(Put(Key(1), "val1"));
SyncPoint::GetInstance()->SetCallBack(
"BuildTable:BeforeFinishBuildTable",
[&](void*) { fault_fs_->SetFilesystemActive(false, error_msg); });
SyncPoint::GetInstance()->EnableProcessing();
s = Flush();
ASSERT_EQ(s.severity(), ROCKSDB_NAMESPACE::Status::Severity::kSoftError);
SyncPoint::GetInstance()->DisableProcessing();
fault_fs_->SetFilesystemActive(true);
s = dbfull()->Resume();
ASSERT_OK(s);
Reopen(options);
ASSERT_EQ("val1", Get(Key(1)));
ASSERT_OK(Put(Key(2), "val2"));
SyncPoint::GetInstance()->SetCallBack(
"BuildTable:BeforeSyncTable",
[&](void*) { fault_fs_->SetFilesystemActive(false, error_msg); });
SyncPoint::GetInstance()->EnableProcessing();
s = Flush();
ASSERT_EQ(s.severity(), ROCKSDB_NAMESPACE::Status::Severity::kSoftError);
SyncPoint::GetInstance()->DisableProcessing();
fault_fs_->SetFilesystemActive(true);
s = dbfull()->Resume();
ASSERT_OK(s);
Reopen(options);
ASSERT_EQ("val2", Get(Key(2)));
ASSERT_OK(Put(Key(3), "val3"));
SyncPoint::GetInstance()->SetCallBack(
"BuildTable:BeforeCloseTableFile",
[&](void*) { fault_fs_->SetFilesystemActive(false, error_msg); });
SyncPoint::GetInstance()->EnableProcessing();
s = Flush();
ASSERT_EQ(s.severity(), ROCKSDB_NAMESPACE::Status::Severity::kSoftError);
SyncPoint::GetInstance()->DisableProcessing();
fault_fs_->SetFilesystemActive(true);
s = dbfull()->Resume();
ASSERT_OK(s);
Reopen(options);
ASSERT_EQ("val3", Get(Key(3)));
// not file scope, but retyrable set
error_msg.SetDataLoss(false);
error_msg.SetScope(
ROCKSDB_NAMESPACE::IOStatus::IOErrorScope::kIOErrorScopeFileSystem);
error_msg.SetRetryable(true);
ASSERT_OK(Put(Key(3), "val3"));
SyncPoint::GetInstance()->SetCallBack(
"BuildTable:BeforeCloseTableFile",
[&](void*) { fault_fs_->SetFilesystemActive(false, error_msg); });
SyncPoint::GetInstance()->EnableProcessing();
s = Flush();
ASSERT_EQ(s.severity(), ROCKSDB_NAMESPACE::Status::Severity::kSoftError);
SyncPoint::GetInstance()->DisableProcessing();
fault_fs_->SetFilesystemActive(true);
s = dbfull()->Resume();
ASSERT_OK(s);
Reopen(options);
ASSERT_EQ("val3", Get(Key(3)));
Destroy(options);
}
TEST_F(DBErrorHandlingFSTest, FlushWALWriteRetryableError) {
std::shared_ptr<ErrorHandlerFSListener> listener =
std::make_shared<ErrorHandlerFSListener>();
Options options = GetDefaultOptions();
options.env = fault_env_.get();
options.create_if_missing = true;
options.listeners.emplace_back(listener);
options.max_bgerror_resume_count = 0;
Status s;
IOStatus error_msg = IOStatus::IOError("Retryable IO Error");
error_msg.SetRetryable(true);
listener->EnableAutoRecovery(false);
SyncPoint::GetInstance()->SetCallBack(
"DBImpl::SyncClosedWals:Start",
[&](void*) { fault_fs_->SetFilesystemActive(false, error_msg); });
SyncPoint::GetInstance()->EnableProcessing();
CreateAndReopenWithCF({"pikachu, sdfsdfsdf"}, options);
WriteOptions wo = WriteOptions();
wo.disableWAL = false;
ASSERT_OK(Put(Key(1), "val1", wo));
s = Flush();
ASSERT_EQ(s.severity(), ROCKSDB_NAMESPACE::Status::Severity::kHardError);
SyncPoint::GetInstance()->DisableProcessing();
fault_fs_->SetFilesystemActive(true);
auto cfh = dbfull()->GetColumnFamilyHandle(1);
s = dbfull()->DropColumnFamily(cfh);
s = dbfull()->Resume();
ASSERT_OK(s);
ASSERT_EQ("val1", Get(Key(1)));
ASSERT_OK(Put(Key(3), "val3", wo));
ASSERT_EQ("val3", Get(Key(3)));
s = Flush();
ASSERT_OK(s);
ASSERT_EQ("val3", Get(Key(3)));
Destroy(options);
}
TEST_F(DBErrorHandlingFSTest, FlushWALAtomicWriteRetryableError) {
std::shared_ptr<ErrorHandlerFSListener> listener =
std::make_shared<ErrorHandlerFSListener>();
Options options = GetDefaultOptions();
options.env = fault_env_.get();
options.create_if_missing = true;
options.listeners.emplace_back(listener);
options.max_bgerror_resume_count = 0;
options.atomic_flush = true;
Status s;
IOStatus error_msg = IOStatus::IOError("Retryable IO Error");
error_msg.SetRetryable(true);
listener->EnableAutoRecovery(false);
SyncPoint::GetInstance()->SetCallBack(
"DBImpl::SyncClosedWals:Start",
[&](void*) { fault_fs_->SetFilesystemActive(false, error_msg); });
SyncPoint::GetInstance()->EnableProcessing();
CreateAndReopenWithCF({"pikachu, sdfsdfsdf"}, options);
WriteOptions wo = WriteOptions();
wo.disableWAL = false;
ASSERT_OK(Put(Key(1), "val1", wo));
s = Flush();
ASSERT_EQ(s.severity(), ROCKSDB_NAMESPACE::Status::Severity::kHardError);
SyncPoint::GetInstance()->DisableProcessing();
fault_fs_->SetFilesystemActive(true);
auto cfh = dbfull()->GetColumnFamilyHandle(1);
s = dbfull()->DropColumnFamily(cfh);
s = dbfull()->Resume();
ASSERT_OK(s);
ASSERT_EQ("val1", Get(Key(1)));
ASSERT_OK(Put(Key(3), "val3", wo));
ASSERT_EQ("val3", Get(Key(3)));
s = Flush();
ASSERT_OK(s);
ASSERT_EQ("val3", Get(Key(3)));
Destroy(options);
}
// The flush error is injected before we finish the table build
TEST_F(DBErrorHandlingFSTest, FlushWritNoWALRetryableError1) {
std::shared_ptr<ErrorHandlerFSListener> listener =
std::make_shared<ErrorHandlerFSListener>();
Options options = GetDefaultOptions();
options.env = fault_env_.get();
options.create_if_missing = true;
options.listeners.emplace_back(listener);
options.max_bgerror_resume_count = 0;
options.statistics = CreateDBStatistics();
Status s;
listener->EnableAutoRecovery(false);
DestroyAndReopen(options);
IOStatus error_msg = IOStatus::IOError("Retryable IO Error");
error_msg.SetRetryable(true);
WriteOptions wo = WriteOptions();
wo.disableWAL = true;
ASSERT_OK(Put(Key(1), "val1", wo));
SyncPoint::GetInstance()->SetCallBack(
"BuildTable:BeforeFinishBuildTable",
[&](void*) { fault_fs_->SetFilesystemActive(false, error_msg); });
SyncPoint::GetInstance()->EnableProcessing();
s = Flush();
ASSERT_OK(Put(Key(2), "val2", wo));
ASSERT_EQ(s.severity(), ROCKSDB_NAMESPACE::Status::Severity::kSoftError);
ASSERT_EQ("val2", Get(Key(2)));
SyncPoint::GetInstance()->DisableProcessing();
fault_fs_->SetFilesystemActive(true);
s = dbfull()->Resume();
ASSERT_OK(s);
ASSERT_EQ("val1", Get(Key(1)));
ASSERT_EQ("val2", Get(Key(2)));
ASSERT_OK(Put(Key(3), "val3", wo));
ASSERT_EQ("val3", Get(Key(3)));
s = Flush();
ASSERT_OK(s);
ASSERT_EQ("val3", Get(Key(3)));
ASSERT_EQ(1, options.statistics->getAndResetTickerCount(
ERROR_HANDLER_BG_ERROR_COUNT));
ASSERT_EQ(1, options.statistics->getAndResetTickerCount(
ERROR_HANDLER_BG_IO_ERROR_COUNT));
ASSERT_EQ(1, options.statistics->getAndResetTickerCount(
ERROR_HANDLER_BG_RETRYABLE_IO_ERROR_COUNT));
ASSERT_EQ(0, options.statistics->getAndResetTickerCount(
ERROR_HANDLER_AUTORESUME_COUNT));
ASSERT_EQ(0, options.statistics->getAndResetTickerCount(
ERROR_HANDLER_AUTORESUME_RETRY_TOTAL_COUNT));
ASSERT_EQ(0, options.statistics->getAndResetTickerCount(
ERROR_HANDLER_AUTORESUME_SUCCESS_COUNT));
Destroy(options);
}
// The retryable IO error is injected before we sync table
TEST_F(DBErrorHandlingFSTest, FlushWriteNoWALRetryableError2) {
std::shared_ptr<ErrorHandlerFSListener> listener =
std::make_shared<ErrorHandlerFSListener>();
Options options = GetDefaultOptions();
options.env = fault_env_.get();
options.create_if_missing = true;
options.listeners.emplace_back(listener);
options.max_bgerror_resume_count = 0;
Status s;
listener->EnableAutoRecovery(false);
DestroyAndReopen(options);
IOStatus error_msg = IOStatus::IOError("Retryable IO Error");
error_msg.SetRetryable(true);
WriteOptions wo = WriteOptions();
wo.disableWAL = true;
ASSERT_OK(Put(Key(1), "val1", wo));
SyncPoint::GetInstance()->SetCallBack(
"BuildTable:BeforeSyncTable",
[&](void*) { fault_fs_->SetFilesystemActive(false, error_msg); });
SyncPoint::GetInstance()->EnableProcessing();
s = Flush();
ASSERT_OK(Put(Key(2), "val2", wo));
ASSERT_EQ(s.severity(), ROCKSDB_NAMESPACE::Status::Severity::kSoftError);
ASSERT_EQ("val2", Get(Key(2)));
SyncPoint::GetInstance()->DisableProcessing();
fault_fs_->SetFilesystemActive(true);
s = dbfull()->Resume();
ASSERT_OK(s);
ASSERT_EQ("val1", Get(Key(1)));
ASSERT_EQ("val2", Get(Key(2)));
ASSERT_OK(Put(Key(3), "val3", wo));
ASSERT_EQ("val3", Get(Key(3)));
s = Flush();
ASSERT_OK(s);
ASSERT_EQ("val3", Get(Key(3)));
Destroy(options);
}
// The retryable IO error is injected before we close the table file
TEST_F(DBErrorHandlingFSTest, FlushWriteNoWALRetryableError3) {
std::shared_ptr<ErrorHandlerFSListener> listener =
std::make_shared<ErrorHandlerFSListener>();
Options options = GetDefaultOptions();
options.env = fault_env_.get();
options.create_if_missing = true;
options.listeners.emplace_back(listener);
options.max_bgerror_resume_count = 0;
Status s;
listener->EnableAutoRecovery(false);
DestroyAndReopen(options);
IOStatus error_msg = IOStatus::IOError("Retryable IO Error");
error_msg.SetRetryable(true);
WriteOptions wo = WriteOptions();
wo.disableWAL = true;
ASSERT_OK(Put(Key(1), "val1", wo));
SyncPoint::GetInstance()->SetCallBack(
"BuildTable:BeforeCloseTableFile",
[&](void*) { fault_fs_->SetFilesystemActive(false, error_msg); });
SyncPoint::GetInstance()->EnableProcessing();
s = Flush();
ASSERT_OK(Put(Key(2), "val2", wo));
ASSERT_EQ(s.severity(), ROCKSDB_NAMESPACE::Status::Severity::kSoftError);
ASSERT_EQ("val2", Get(Key(2)));
SyncPoint::GetInstance()->DisableProcessing();
fault_fs_->SetFilesystemActive(true);
s = dbfull()->Resume();
ASSERT_OK(s);
ASSERT_EQ("val1", Get(Key(1)));
ASSERT_EQ("val2", Get(Key(2)));
ASSERT_OK(Put(Key(3), "val3", wo));
ASSERT_EQ("val3", Get(Key(3)));
s = Flush();
ASSERT_OK(s);
ASSERT_EQ("val3", Get(Key(3)));
Destroy(options);
}
TEST_F(DBErrorHandlingFSTest, ManifestWriteError) {
std::shared_ptr<ErrorHandlerFSListener> listener =
std::make_shared<ErrorHandlerFSListener>();
Options options = GetDefaultOptions();
options.env = fault_env_.get();
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();
ASSERT_OK(Put(Key(0), "val"));
ASSERT_OK(Flush());
ASSERT_OK(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);
ASSERT_FALSE(dbfull()->TEST_GetFilesToQuarantine().empty());
SyncPoint::GetInstance()->ClearAllCallBacks();
SyncPoint::GetInstance()->DisableProcessing();
fault_fs_->SetFilesystemActive(true);
s = dbfull()->Resume();
ASSERT_OK(s);
new_manifest = GetManifestNameFromLiveFiles();
ASSERT_NE(new_manifest, old_manifest);
ASSERT_TRUE(dbfull()->TEST_GetFilesToQuarantine().empty());
Reopen(options);
ASSERT_EQ("val", Get(Key(0)));
ASSERT_EQ("val", Get(Key(1)));
Close();
}
TEST_F(DBErrorHandlingFSTest, ManifestWriteRetryableError) {
std::shared_ptr<ErrorHandlerFSListener> listener =
std::make_shared<ErrorHandlerFSListener>();
Options options = GetDefaultOptions();
options.env = fault_env_.get();
options.create_if_missing = true;
options.listeners.emplace_back(listener);
options.max_bgerror_resume_count = 0;
Status s;
std::string old_manifest;
std::string new_manifest;
listener->EnableAutoRecovery(false);
DestroyAndReopen(options);
old_manifest = GetManifestNameFromLiveFiles();
IOStatus error_msg = IOStatus::IOError("Retryable IO Error");
error_msg.SetRetryable(true);
ASSERT_OK(Put(Key(0), "val"));
ASSERT_OK(Flush());
ASSERT_OK(Put(Key(1), "val"));
SyncPoint::GetInstance()->SetCallBack(
"VersionSet::LogAndApply:WriteManifest",
[&](void*) { fault_fs_->SetFilesystemActive(false, error_msg); });
SyncPoint::GetInstance()->EnableProcessing();
s = Flush();
ASSERT_EQ(s.severity(), ROCKSDB_NAMESPACE::Status::Severity::kSoftError);
ASSERT_FALSE(dbfull()->TEST_GetFilesToQuarantine().empty());
SyncPoint::GetInstance()->ClearAllCallBacks();
SyncPoint::GetInstance()->DisableProcessing();
fault_fs_->SetFilesystemActive(true);
s = dbfull()->Resume();
ASSERT_OK(s);
new_manifest = GetManifestNameFromLiveFiles();
ASSERT_NE(new_manifest, old_manifest);
ASSERT_TRUE(dbfull()->TEST_GetFilesToQuarantine().empty());
Reopen(options);
ASSERT_EQ("val", Get(Key(0)));
ASSERT_EQ("val", Get(Key(1)));
Close();
}
TEST_F(DBErrorHandlingFSTest, ManifestWriteFileScopeError) {
std::shared_ptr<ErrorHandlerFSListener> listener =
std::make_shared<ErrorHandlerFSListener>();
Options options = GetDefaultOptions();
options.env = fault_env_.get();
options.create_if_missing = true;
options.listeners.emplace_back(listener);
options.max_bgerror_resume_count = 0;
Status s;
std::string old_manifest;
std::string new_manifest;
listener->EnableAutoRecovery(false);
DestroyAndReopen(options);
old_manifest = GetManifestNameFromLiveFiles();
IOStatus error_msg = IOStatus::IOError("File Scope Data Loss Error");
error_msg.SetDataLoss(true);
error_msg.SetScope(
ROCKSDB_NAMESPACE::IOStatus::IOErrorScope::kIOErrorScopeFile);
error_msg.SetRetryable(false);
ASSERT_OK(Put(Key(0), "val"));
ASSERT_OK(Flush());
ASSERT_OK(Put(Key(1), "val"));
SyncPoint::GetInstance()->SetCallBack(
"VersionSet::LogAndApply:WriteManifest",
[&](void*) { fault_fs_->SetFilesystemActive(false, error_msg); });
SyncPoint::GetInstance()->EnableProcessing();
s = Flush();
ASSERT_FALSE(dbfull()->TEST_GetFilesToQuarantine().empty());
ASSERT_EQ(s.severity(), ROCKSDB_NAMESPACE::Status::Severity::kSoftError);
SyncPoint::GetInstance()->ClearAllCallBacks();
SyncPoint::GetInstance()->DisableProcessing();
fault_fs_->SetFilesystemActive(true);
s = dbfull()->Resume();
ASSERT_OK(s);
new_manifest = GetManifestNameFromLiveFiles();
ASSERT_NE(new_manifest, old_manifest);
ASSERT_TRUE(dbfull()->TEST_GetFilesToQuarantine().empty());
Reopen(options);
ASSERT_EQ("val", Get(Key(0)));
ASSERT_EQ("val", Get(Key(1)));
Close();
}
TEST_F(DBErrorHandlingFSTest, ManifestWriteNoWALRetryableError) {
std::shared_ptr<ErrorHandlerFSListener> listener =
std::make_shared<ErrorHandlerFSListener>();
Options options = GetDefaultOptions();
options.env = fault_env_.get();
options.create_if_missing = true;
options.listeners.emplace_back(listener);
options.max_bgerror_resume_count = 0;
Status s;
std::string old_manifest;
std::string new_manifest;
listener->EnableAutoRecovery(false);
DestroyAndReopen(options);
old_manifest = GetManifestNameFromLiveFiles();
IOStatus error_msg = IOStatus::IOError("Retryable IO Error");
error_msg.SetRetryable(true);
WriteOptions wo = WriteOptions();
wo.disableWAL = true;
ASSERT_OK(Put(Key(0), "val", wo));
ASSERT_OK(Flush());
ASSERT_OK(Put(Key(1), "val", wo));
SyncPoint::GetInstance()->SetCallBack(
"VersionSet::LogAndApply:WriteManifest",
[&](void*) { fault_fs_->SetFilesystemActive(false, error_msg); });
SyncPoint::GetInstance()->EnableProcessing();
s = Flush();
ASSERT_EQ(s.severity(), ROCKSDB_NAMESPACE::Status::Severity::kSoftError);
ASSERT_FALSE(dbfull()->TEST_GetFilesToQuarantine().empty());
SyncPoint::GetInstance()->ClearAllCallBacks();
SyncPoint::GetInstance()->DisableProcessing();
fault_fs_->SetFilesystemActive(true);
s = dbfull()->Resume();
ASSERT_OK(s);
new_manifest = GetManifestNameFromLiveFiles();
ASSERT_NE(new_manifest, old_manifest);
ASSERT_TRUE(dbfull()->TEST_GetFilesToQuarantine().empty());
Reopen(options);
ASSERT_EQ("val", Get(Key(0)));
ASSERT_EQ("val", Get(Key(1)));
Close();
}
TEST_F(DBErrorHandlingFSTest, DoubleManifestWriteError) {
std::shared_ptr<ErrorHandlerFSListener> listener =
std::make_shared<ErrorHandlerFSListener>();
Options options = GetDefaultOptions();
options.env = fault_env_.get();
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();
ASSERT_OK(Put(Key(0), "val"));
ASSERT_OK(Flush());
ASSERT_OK(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_TRUE(s.IsNoSpace());
ASSERT_EQ(dbfull()->TEST_GetBGError().severity(),
ROCKSDB_NAMESPACE::Status::Severity::kHardError);
ASSERT_FALSE(dbfull()->TEST_GetFilesToQuarantine().empty());
fault_fs_->SetFilesystemActive(true);
// This Resume() will attempt to create a new manifest file and fail again
s = dbfull()->Resume();
ASSERT_TRUE(s.IsNoSpace());
ASSERT_EQ(dbfull()->TEST_GetBGError().severity(),
ROCKSDB_NAMESPACE::Status::Severity::kHardError);
ASSERT_FALSE(dbfull()->TEST_GetFilesToQuarantine().empty());
fault_fs_->SetFilesystemActive(true);
SyncPoint::GetInstance()->ClearAllCallBacks();
SyncPoint::GetInstance()->DisableProcessing();
// A successful Resume() will create a new manifest file
s = dbfull()->Resume();
ASSERT_OK(s);
new_manifest = GetManifestNameFromLiveFiles();
ASSERT_NE(new_manifest, old_manifest);
ASSERT_TRUE(dbfull()->TEST_GetFilesToQuarantine().empty());
Reopen(options);
ASSERT_EQ("val", Get(Key(0)));
ASSERT_EQ("val", Get(Key(1)));
Close();
}
TEST_F(DBErrorHandlingFSTest, CompactionManifestWriteError) {
if (mem_env_ != nullptr) {
ROCKSDB_GTEST_SKIP("Test requires non-mock environment");
return;
}
std::shared_ptr<ErrorHandlerFSListener> listener =
std::make_shared<ErrorHandlerFSListener>();
Options options = GetDefaultOptions();
options.env = fault_env_.get();
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();
ASSERT_OK(Put(Key(0), "val"));
ASSERT_OK(Put(Key(2), "val"));
s = Flush();
ASSERT_OK(s);
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();
ASSERT_OK(Put(Key(1), "val"));
// This Flush will trigger a compaction, which will fail when appending to
// the manifest
s = Flush();
ASSERT_OK(s);
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");
ASSERT_FALSE(dbfull()->TEST_GetFilesToQuarantine().empty());
TEST_SYNC_POINT("CompactionManifestWriteError:2");
s = dbfull()->TEST_WaitForCompact();
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
ASSERT_OK(s);
new_manifest = GetManifestNameFromLiveFiles();
ASSERT_NE(new_manifest, old_manifest);
ASSERT_TRUE(dbfull()->TEST_GetFilesToQuarantine().empty());
Reopen(options);
ASSERT_EQ("val", Get(Key(0)));
ASSERT_EQ("val", Get(Key(1)));
ASSERT_EQ("val", Get(Key(2)));
Close();
}
TEST_F(DBErrorHandlingFSTest, CompactionManifestWriteRetryableError) {
std::shared_ptr<ErrorHandlerFSListener> listener =
std::make_shared<ErrorHandlerFSListener>();
Options options = GetDefaultOptions();
options.env = fault_env_.get();
options.create_if_missing = true;
options.level0_file_num_compaction_trigger = 2;
options.listeners.emplace_back(listener);
options.max_bgerror_resume_count = 0;
Status s;
std::string old_manifest;
std::string new_manifest;
std::atomic<bool> fail_manifest(false);
DestroyAndReopen(options);
old_manifest = GetManifestNameFromLiveFiles();
IOStatus error_msg = IOStatus::IOError("Retryable IO Error");
error_msg.SetRetryable(true);
ASSERT_OK(Put(Key(0), "val"));
ASSERT_OK(Put(Key(2), "val"));
s = Flush();
ASSERT_OK(s);
listener->OverrideBGError(Status(error_msg, Status::Severity::kHardError));
listener->EnableAutoRecovery(false);
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"}});
// 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()) {