Make secondary instance use ManifestTailer (#7998)
Summary: This PR - adds a class `ManifestTailer` that inherits from `VersionEditHandlerPointInTime`. `ManifestTailer::Iterate()` can be called multiple times to tail the primary instance's MANIFEST and apply the changes to the secondary, - updates the implementation of `ReactiveVersionSet::ReadAndApply` to use this class, - removes unused code in version_set.cc, - updates existing tests, e.g. removing deleted sync points from unit tests, - adds a new test to address the bug in https://github.com/facebook/rocksdb/issues/7815. Pull Request resolved: https://github.com/facebook/rocksdb/pull/7998 Test Plan: make check Existing and newly-added tests in version_set_test.cc and db_secondary_test.cc Reviewed By: jay-zhuang Differential Revision: D26926641 Pulled By: riversand963 fbshipit-source-id: 8d4dd15db0ba863c213f743e33b5a207e948c980
This commit is contained in:
Yanqin Jin
Facebook GitHub Bot
parent
7a3444bf1f
commit
64517d184a
@ -633,7 +633,7 @@ ColumnFamilyData::~ColumnFamilyData() {
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if (dummy_versions_ != nullptr) {
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// List must be empty
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assert(dummy_versions_->TEST_Next() == dummy_versions_);
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assert(dummy_versions_->Next() == dummy_versions_);
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bool deleted __attribute__((__unused__));
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deleted = dummy_versions_->Unref();
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assert(deleted);
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@ -519,7 +519,8 @@ Status DBImplSecondary::TryCatchUpWithPrimary() {
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{
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InstrumentedMutexLock lock_guard(&mutex_);
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s = static_cast_with_check<ReactiveVersionSet>(versions_.get())
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->ReadAndApply(&mutex_, &manifest_reader_, &cfds_changed);
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->ReadAndApply(&mutex_, &manifest_reader_,
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manifest_reader_status_.get(), &cfds_changed);
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ROCKS_LOG_INFO(immutable_db_options_.info_log, "Last sequence is %" PRIu64,
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static_cast<uint64_t>(versions_->LastSequence()));
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@ -459,20 +459,6 @@ TEST_F(DBSecondaryTest, MissingTableFileDuringOpen) {
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}
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TEST_F(DBSecondaryTest, MissingTableFile) {
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int table_files_not_exist = 0;
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SyncPoint::GetInstance()->DisableProcessing();
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SyncPoint::GetInstance()->ClearAllCallBacks();
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SyncPoint::GetInstance()->SetCallBack(
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"ReactiveVersionSet::ApplyOneVersionEditToBuilder:AfterLoadTableHandlers",
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[&](void* arg) {
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Status s = *reinterpret_cast<Status*>(arg);
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if (s.IsPathNotFound()) {
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++table_files_not_exist;
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} else if (!s.ok()) {
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assert(false); // Should not reach here
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}
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});
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SyncPoint::GetInstance()->EnableProcessing();
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Options options;
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options.env = env_;
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options.level0_file_num_compaction_trigger = 4;
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@ -499,7 +485,6 @@ TEST_F(DBSecondaryTest, MissingTableFile) {
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ASSERT_NOK(db_secondary_->Get(ropts, "bar", &value));
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ASSERT_OK(db_secondary_->TryCatchUpWithPrimary());
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ASSERT_EQ(options.level0_file_num_compaction_trigger, table_files_not_exist);
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ASSERT_OK(db_secondary_->Get(ropts, "foo", &value));
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ASSERT_EQ("foo_value" +
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std::to_string(options.level0_file_num_compaction_trigger - 1),
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@ -615,10 +600,7 @@ TEST_F(DBSecondaryTest, SwitchManifest) {
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range_scan_db();
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}
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// Here, "Snapshot" refers to the version edits written by
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// VersionSet::WriteSnapshot() at the beginning of the new MANIFEST after
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// switching from the old one.
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TEST_F(DBSecondaryTest, SkipSnapshotAfterManifestSwitch) {
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TEST_F(DBSecondaryTest, SwitchManifestTwice) {
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Options options;
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options.env = env_;
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options.disable_auto_compactions = true;
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@ -640,10 +622,15 @@ TEST_F(DBSecondaryTest, SkipSnapshotAfterManifestSwitch) {
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Reopen(options);
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ASSERT_OK(dbfull()->SetOptions({{"disable_auto_compactions", "false"}}));
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Reopen(options);
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ASSERT_OK(Put("0", "value1"));
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ASSERT_OK(db_secondary_->TryCatchUpWithPrimary());
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ASSERT_OK(db_secondary_->Get(ropts, "0", &value));
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ASSERT_EQ("value1", value);
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}
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TEST_F(DBSecondaryTest, SwitchWAL) {
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TEST_F(DBSecondaryTest, DISABLED_SwitchWAL) {
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const int kNumKeysPerMemtable = 1;
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Options options;
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options.env = env_;
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@ -692,7 +679,7 @@ TEST_F(DBSecondaryTest, SwitchWAL) {
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}
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}
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TEST_F(DBSecondaryTest, SwitchWALMultiColumnFamilies) {
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TEST_F(DBSecondaryTest, DISABLED_SwitchWALMultiColumnFamilies) {
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const int kNumKeysPerMemtable = 1;
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SyncPoint::GetInstance()->DisableProcessing();
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SyncPoint::GetInstance()->LoadDependency(
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@ -62,8 +62,6 @@ void VersionEditHandlerBase::Iterate(log::Reader& reader,
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s = *log_read_status;
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}
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read_buffer_.Clear();
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CheckIterationResult(reader, &s);
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if (!s.ok()) {
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@ -129,13 +127,13 @@ Status FileChecksumRetriever::ApplyVersionEdit(VersionEdit& edit,
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}
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VersionEditHandler::VersionEditHandler(
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bool read_only, const std::vector<ColumnFamilyDescriptor>& column_families,
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bool read_only, std::vector<ColumnFamilyDescriptor> column_families,
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VersionSet* version_set, bool track_missing_files,
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bool no_error_if_table_files_missing,
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const std::shared_ptr<IOTracer>& io_tracer, bool skip_load_table_files)
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: VersionEditHandlerBase(),
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read_only_(read_only),
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column_families_(column_families),
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column_families_(std::move(column_families)),
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version_set_(version_set),
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track_missing_files_(track_missing_files),
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no_error_if_table_files_missing_(no_error_if_table_files_missing),
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@ -351,7 +349,8 @@ void VersionEditHandler::CheckIterationResult(const log::Reader& reader,
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}
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// There were some column families in the MANIFEST that weren't specified
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// in the argument. This is OK in read_only mode
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if (s->ok() && !read_only_ && !column_families_not_found_.empty()) {
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if (s->ok() && MustOpenAllColumnFamilies() &&
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!column_families_not_found_.empty()) {
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std::string msg;
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for (const auto& cf : column_families_not_found_) {
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msg.append(", ");
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@ -368,6 +367,9 @@ void VersionEditHandler::CheckIterationResult(const log::Reader& reader,
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version_set_->MarkFileNumberUsed(version_edit_params_.prev_log_number_);
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version_set_->MarkFileNumberUsed(version_edit_params_.log_number_);
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for (auto* cfd : *(version_set_->GetColumnFamilySet())) {
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if (cfd->IsDropped()) {
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continue;
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}
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auto builder_iter = builders_.find(cfd->GetID());
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assert(builder_iter != builders_.end());
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auto* builder = builder_iter->second->version_builder();
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@ -452,11 +454,9 @@ ColumnFamilyData* VersionEditHandler::DestroyCfAndCleanup(
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ColumnFamilyData* ret =
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version_set_->GetColumnFamilySet()->GetColumnFamily(edit.column_family_);
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assert(ret != nullptr);
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if (ret->UnrefAndTryDelete()) {
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ret = nullptr;
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} else {
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assert(false);
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}
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ret->SetDropped();
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ret->UnrefAndTryDelete();
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ret = nullptr;
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return ret;
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}
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@ -572,7 +572,7 @@ Status VersionEditHandler::ExtractInfoFromVersionEdit(ColumnFamilyData* cfd,
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}
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VersionEditHandlerPointInTime::VersionEditHandlerPointInTime(
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bool read_only, const std::vector<ColumnFamilyDescriptor>& column_families,
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bool read_only, std::vector<ColumnFamilyDescriptor> column_families,
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VersionSet* version_set, const std::shared_ptr<IOTracer>& io_tracer)
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: VersionEditHandler(read_only, column_families, version_set,
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/*track_missing_files=*/true,
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@ -641,7 +641,7 @@ Status VersionEditHandlerPointInTime::MaybeCreateVersion(
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uint64_t file_num = fd.GetNumber();
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const std::string fpath =
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MakeTableFileName(cfd->ioptions()->cf_paths[0].path, file_num);
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s = version_set_->VerifyFileMetadata(fpath, meta);
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s = VerifyFile(fpath, meta);
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if (s.IsPathNotFound() || s.IsNotFound() || s.IsCorruption()) {
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missing_files.insert(file_num);
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s = Status::OK();
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@ -682,6 +682,106 @@ Status VersionEditHandlerPointInTime::MaybeCreateVersion(
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return s;
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}
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Status VersionEditHandlerPointInTime::VerifyFile(const std::string& fpath,
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const FileMetaData& fmeta) {
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return version_set_->VerifyFileMetadata(fpath, fmeta);
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}
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Status ManifestTailer::Initialize() {
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if (Mode::kRecovery == mode_) {
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return VersionEditHandler::Initialize();
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}
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assert(Mode::kCatchUp == mode_);
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Status s;
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if (!initialized_) {
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ColumnFamilySet* cfd_set = version_set_->GetColumnFamilySet();
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assert(cfd_set);
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ColumnFamilyData* default_cfd = cfd_set->GetDefault();
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assert(default_cfd);
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auto builder_iter = builders_.find(default_cfd->GetID());
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assert(builder_iter != builders_.end());
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Version* dummy_version = default_cfd->dummy_versions();
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assert(dummy_version);
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Version* base_version = dummy_version->Next();
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assert(base_version);
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base_version->Ref();
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VersionBuilderUPtr new_builder(
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new BaseReferencedVersionBuilder(default_cfd, base_version));
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builder_iter->second = std::move(new_builder);
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initialized_ = true;
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}
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return s;
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}
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Status ManifestTailer::ApplyVersionEdit(VersionEdit& edit,
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ColumnFamilyData** cfd) {
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Status s = VersionEditHandler::ApplyVersionEdit(edit, cfd);
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if (s.ok()) {
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assert(cfd);
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if (*cfd) {
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cfds_changed_.insert(*cfd);
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}
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}
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return s;
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}
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Status ManifestTailer::OnColumnFamilyAdd(VersionEdit& edit,
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ColumnFamilyData** cfd) {
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if (Mode::kRecovery == mode_) {
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return VersionEditHandler::OnColumnFamilyAdd(edit, cfd);
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}
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assert(Mode::kCatchUp == mode_);
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ColumnFamilySet* cfd_set = version_set_->GetColumnFamilySet();
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assert(cfd_set);
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ColumnFamilyData* tmp_cfd = cfd_set->GetColumnFamily(edit.GetColumnFamily());
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assert(cfd);
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*cfd = tmp_cfd;
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if (!tmp_cfd) {
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// For now, ignore new column families created after Recover() succeeds.
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return Status::OK();
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}
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auto builder_iter = builders_.find(edit.GetColumnFamily());
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assert(builder_iter != builders_.end());
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Version* dummy_version = tmp_cfd->dummy_versions();
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assert(dummy_version);
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Version* base_version = dummy_version->Next();
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assert(base_version);
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base_version->Ref();
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VersionBuilderUPtr new_builder(
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new BaseReferencedVersionBuilder(tmp_cfd, base_version));
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builder_iter->second = std::move(new_builder);
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#ifndef NDEBUG
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auto version_iter = versions_.find(edit.GetColumnFamily());
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assert(version_iter != versions_.end());
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#endif // !NDEBUG
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return Status::OK();
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}
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void ManifestTailer::CheckIterationResult(const log::Reader& reader,
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Status* s) {
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VersionEditHandlerPointInTime::CheckIterationResult(reader, s);
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assert(s);
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if (s->ok()) {
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if (Mode::kRecovery == mode_) {
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mode_ = Mode::kCatchUp;
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} else {
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assert(Mode::kCatchUp == mode_);
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}
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}
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}
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Status ManifestTailer::VerifyFile(const std::string& fpath,
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const FileMetaData& fmeta) {
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Status s = VersionEditHandlerPointInTime::VerifyFile(fpath, fmeta);
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// TODO: Open file or create hard link to prevent the file from being
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// deleted.
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return s;
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}
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void DumpManifestHandler::CheckIterationResult(const log::Reader& reader,
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Status* s) {
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VersionEditHandler::CheckIterationResult(reader, s);
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@ -15,6 +15,8 @@
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namespace ROCKSDB_NAMESPACE {
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struct FileMetaData;
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class VersionEditHandlerBase {
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public:
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explicit VersionEditHandlerBase()
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@ -26,6 +28,8 @@ class VersionEditHandlerBase {
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const Status& status() const { return status_; }
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AtomicGroupReadBuffer& GetReadBuffer() { return read_buffer_; }
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protected:
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explicit VersionEditHandlerBase(uint64_t max_read_size)
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: max_manifest_read_size_(max_read_size) {}
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@ -37,6 +41,8 @@ class VersionEditHandlerBase {
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virtual void CheckIterationResult(const log::Reader& /*reader*/,
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Status* /*s*/) {}
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void ClearReadBuffer() { read_buffer_.Clear(); }
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Status status_;
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private:
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@ -125,15 +131,14 @@ class VersionEditHandler : public VersionEditHandlerBase {
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protected:
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explicit VersionEditHandler(
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bool read_only,
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const std::vector<ColumnFamilyDescriptor>& column_families,
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bool read_only, std::vector<ColumnFamilyDescriptor> column_families,
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VersionSet* version_set, bool track_missing_files,
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bool no_error_if_table_files_missing,
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const std::shared_ptr<IOTracer>& io_tracer, bool skip_load_table_files);
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Status ApplyVersionEdit(VersionEdit& edit, ColumnFamilyData** cfd) override;
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Status OnColumnFamilyAdd(VersionEdit& edit, ColumnFamilyData** cfd);
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virtual Status OnColumnFamilyAdd(VersionEdit& edit, ColumnFamilyData** cfd);
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Status OnColumnFamilyDrop(VersionEdit& edit, ColumnFamilyData** cfd);
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@ -163,8 +168,10 @@ class VersionEditHandler : public VersionEditHandlerBase {
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bool prefetch_index_and_filter_in_cache,
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bool is_initial_load);
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virtual bool MustOpenAllColumnFamilies() const { return !read_only_; }
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const bool read_only_;
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const std::vector<ColumnFamilyDescriptor>& column_families_;
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std::vector<ColumnFamilyDescriptor> column_families_;
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VersionSet* version_set_;
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std::unordered_map<uint32_t, VersionBuilderUPtr> builders_;
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std::unordered_map<std::string, ColumnFamilyOptions> name_to_options_;
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@ -179,12 +186,11 @@ class VersionEditHandler : public VersionEditHandlerBase {
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bool no_error_if_table_files_missing_;
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std::shared_ptr<IOTracer> io_tracer_;
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bool skip_load_table_files_;
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bool initialized_;
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private:
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Status ExtractInfoFromVersionEdit(ColumnFamilyData* cfd,
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const VersionEdit& edit);
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bool initialized_;
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};
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// A class similar to its base class, i.e. VersionEditHandler.
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@ -196,8 +202,7 @@ class VersionEditHandler : public VersionEditHandlerBase {
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class VersionEditHandlerPointInTime : public VersionEditHandler {
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public:
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VersionEditHandlerPointInTime(
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bool read_only,
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const std::vector<ColumnFamilyDescriptor>& column_families,
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bool read_only, std::vector<ColumnFamilyDescriptor> column_families,
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VersionSet* version_set, const std::shared_ptr<IOTracer>& io_tracer);
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~VersionEditHandlerPointInTime() override;
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@ -206,17 +211,59 @@ class VersionEditHandlerPointInTime : public VersionEditHandler {
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ColumnFamilyData* DestroyCfAndCleanup(const VersionEdit& edit) override;
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Status MaybeCreateVersion(const VersionEdit& edit, ColumnFamilyData* cfd,
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bool force_create_version) override;
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virtual Status VerifyFile(const std::string& fpath,
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const FileMetaData& fmeta);
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private:
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std::unordered_map<uint32_t, Version*> versions_;
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};
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class ManifestTailer : public VersionEditHandlerPointInTime {
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public:
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explicit ManifestTailer(std::vector<ColumnFamilyDescriptor> column_families,
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VersionSet* version_set,
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const std::shared_ptr<IOTracer>& io_tracer)
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: VersionEditHandlerPointInTime(/*read_only=*/false, column_families,
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version_set, io_tracer),
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mode_(Mode::kRecovery) {}
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void PrepareToReadNewManifest() {
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initialized_ = false;
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ClearReadBuffer();
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}
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std::unordered_set<ColumnFamilyData*>& GetUpdatedColumnFamilies() {
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return cfds_changed_;
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}
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protected:
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Status Initialize() override;
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bool MustOpenAllColumnFamilies() const override { return false; }
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Status ApplyVersionEdit(VersionEdit& edit, ColumnFamilyData** cfd) override;
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Status OnColumnFamilyAdd(VersionEdit& edit, ColumnFamilyData** cfd) override;
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void CheckIterationResult(const log::Reader& reader, Status* s) override;
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Status VerifyFile(const std::string& fpath,
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const FileMetaData& fmeta) override;
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enum Mode : uint8_t {
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kRecovery = 0,
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kCatchUp = 1,
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};
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Mode mode_;
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std::unordered_set<ColumnFamilyData*> cfds_changed_;
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};
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class DumpManifestHandler : public VersionEditHandler {
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public:
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DumpManifestHandler(
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const std::vector<ColumnFamilyDescriptor>& column_families,
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VersionSet* version_set, const std::shared_ptr<IOTracer>& io_tracer,
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bool verbose, bool hex, bool json)
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DumpManifestHandler(std::vector<ColumnFamilyDescriptor> column_families,
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VersionSet* version_set,
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const std::shared_ptr<IOTracer>& io_tracer, bool verbose,
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bool hex, bool json)
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: VersionEditHandler(
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/*read_only=*/true, column_families, version_set,
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/*track_missing_files=*/false,
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@ -4491,110 +4491,6 @@ Status VersionSet::LogAndApplyHelper(ColumnFamilyData* cfd,
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return builder ? builder->Apply(edit) : Status::OK();
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}
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Status VersionSet::ApplyOneVersionEditToBuilder(
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VersionEdit& edit,
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const std::unordered_map<std::string, ColumnFamilyOptions>& name_to_options,
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std::unordered_map<int, std::string>& column_families_not_found,
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std::unordered_map<uint32_t, std::unique_ptr<BaseReferencedVersionBuilder>>&
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builders,
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VersionEditParams* version_edit_params) {
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// Not found means that user didn't supply that column
|
||||
// family option AND we encountered column family add
|
||||
// record. Once we encounter column family drop record,
|
||||
// we will delete the column family from
|
||||
// column_families_not_found.
|
||||
bool cf_in_not_found = (column_families_not_found.find(edit.column_family_) !=
|
||||
column_families_not_found.end());
|
||||
// in builders means that user supplied that column family
|
||||
// option AND that we encountered column family add record
|
||||
bool cf_in_builders = builders.find(edit.column_family_) != builders.end();
|
||||
|
||||
// they can't both be true
|
||||
assert(!(cf_in_not_found && cf_in_builders));
|
||||
|
||||
ColumnFamilyData* cfd = nullptr;
|
||||
|
||||
if (edit.is_column_family_add_) {
|
||||
if (cf_in_builders || cf_in_not_found) {
|
||||
return Status::Corruption(
|
||||
"Manifest adding the same column family twice: " +
|
||||
edit.column_family_name_);
|
||||
}
|
||||
auto cf_options = name_to_options.find(edit.column_family_name_);
|
||||
// implicitly add persistent_stats column family without requiring user
|
||||
// to specify
|
||||
bool is_persistent_stats_column_family =
|
||||
edit.column_family_name_.compare(kPersistentStatsColumnFamilyName) == 0;
|
||||
if (cf_options == name_to_options.end() &&
|
||||
!is_persistent_stats_column_family) {
|
||||
column_families_not_found.insert(
|
||||
{edit.column_family_, edit.column_family_name_});
|
||||
} else {
|
||||
// recover persistent_stats CF from a DB that already contains it
|
||||
if (is_persistent_stats_column_family) {
|
||||
ColumnFamilyOptions cfo;
|
||||
OptimizeForPersistentStats(&cfo);
|
||||
cfd = CreateColumnFamily(cfo, &edit);
|
||||
} else {
|
||||
cfd = CreateColumnFamily(cf_options->second, &edit);
|
||||
}
|
||||
cfd->set_initialized();
|
||||
builders.insert(std::make_pair(
|
||||
edit.column_family_, std::unique_ptr<BaseReferencedVersionBuilder>(
|
||||
new BaseReferencedVersionBuilder(cfd))));
|
||||
}
|
||||
} else if (edit.is_column_family_drop_) {
|
||||
if (cf_in_builders) {
|
||||
auto builder = builders.find(edit.column_family_);
|
||||
assert(builder != builders.end());
|
||||
builders.erase(builder);
|
||||
cfd = column_family_set_->GetColumnFamily(edit.column_family_);
|
||||
assert(cfd != nullptr);
|
||||
if (cfd->UnrefAndTryDelete()) {
|
||||
cfd = nullptr;
|
||||
} else {
|
||||
// who else can have reference to cfd!?
|
||||
assert(false);
|
||||
}
|
||||
} else if (cf_in_not_found) {
|
||||
column_families_not_found.erase(edit.column_family_);
|
||||
} else {
|
||||
return Status::Corruption(
|
||||
"Manifest - dropping non-existing column family");
|
||||
}
|
||||
} else if (edit.IsWalAddition()) {
|
||||
Status s = wals_.AddWals(edit.GetWalAdditions());
|
||||
if (!s.ok()) {
|
||||
return s;
|
||||
}
|
||||
} else if (edit.IsWalDeletion()) {
|
||||
Status s = wals_.DeleteWalsBefore(edit.GetWalDeletion().GetLogNumber());
|
||||
if (!s.ok()) {
|
||||
return s;
|
||||
}
|
||||
} else if (!cf_in_not_found) {
|
||||
if (!cf_in_builders) {
|
||||
return Status::Corruption(
|
||||
"Manifest record referencing unknown column family");
|
||||
}
|
||||
|
||||
cfd = column_family_set_->GetColumnFamily(edit.column_family_);
|
||||
// this should never happen since cf_in_builders is true
|
||||
assert(cfd != nullptr);
|
||||
|
||||
// if it is not column family add or column family drop,
|
||||
// then it's a file add/delete, which should be forwarded
|
||||
// to builder
|
||||
auto builder = builders.find(edit.column_family_);
|
||||
assert(builder != builders.end());
|
||||
Status s = builder->second->version_builder()->Apply(&edit);
|
||||
if (!s.ok()) {
|
||||
return s;
|
||||
}
|
||||
}
|
||||
return ExtractInfoFromVersionEdit(cfd, edit, version_edit_params);
|
||||
}
|
||||
|
||||
Status VersionSet::ExtractInfoFromVersionEdit(
|
||||
ColumnFamilyData* cfd, const VersionEdit& from_edit,
|
||||
VersionEditParams* version_edit_params) {
|
||||
@ -4680,77 +4576,6 @@ Status VersionSet::GetCurrentManifestPath(const std::string& dbname,
|
||||
return Status::OK();
|
||||
}
|
||||
|
||||
Status VersionSet::ReadAndRecover(
|
||||
log::Reader& reader, AtomicGroupReadBuffer* read_buffer,
|
||||
const std::unordered_map<std::string, ColumnFamilyOptions>& name_to_options,
|
||||
std::unordered_map<int, std::string>& column_families_not_found,
|
||||
std::unordered_map<uint32_t, std::unique_ptr<BaseReferencedVersionBuilder>>&
|
||||
builders,
|
||||
Status* log_read_status, VersionEditParams* version_edit_params,
|
||||
std::string* db_id) {
|
||||
assert(read_buffer != nullptr);
|
||||
assert(log_read_status != nullptr);
|
||||
Status s;
|
||||
Slice record;
|
||||
std::string scratch;
|
||||
size_t recovered_edits = 0;
|
||||
while (s.ok() && reader.ReadRecord(&record, &scratch) &&
|
||||
log_read_status->ok()) {
|
||||
VersionEdit edit;
|
||||
s = edit.DecodeFrom(record);
|
||||
if (!s.ok()) {
|
||||
break;
|
||||
}
|
||||
if (edit.has_db_id_) {
|
||||
db_id_ = edit.GetDbId();
|
||||
if (db_id != nullptr) {
|
||||
db_id->assign(edit.GetDbId());
|
||||
}
|
||||
}
|
||||
s = read_buffer->AddEdit(&edit);
|
||||
if (!s.ok()) {
|
||||
break;
|
||||
}
|
||||
if (edit.is_in_atomic_group_) {
|
||||
if (read_buffer->IsFull()) {
|
||||
// Apply edits in an atomic group when we have read all edits in the
|
||||
// group.
|
||||
for (auto& e : read_buffer->replay_buffer()) {
|
||||
s = ApplyOneVersionEditToBuilder(e, name_to_options,
|
||||
column_families_not_found, builders,
|
||||
version_edit_params);
|
||||
if (!s.ok()) {
|
||||
break;
|
||||
}
|
||||
recovered_edits++;
|
||||
}
|
||||
if (!s.ok()) {
|
||||
break;
|
||||
}
|
||||
read_buffer->Clear();
|
||||
}
|
||||
} else {
|
||||
// Apply a normal edit immediately.
|
||||
s = ApplyOneVersionEditToBuilder(edit, name_to_options,
|
||||
column_families_not_found, builders,
|
||||
version_edit_params);
|
||||
if (s.ok()) {
|
||||
recovered_edits++;
|
||||
}
|
||||
}
|
||||
}
|
||||
if (!log_read_status->ok()) {
|
||||
s = *log_read_status;
|
||||
}
|
||||
if (!s.ok()) {
|
||||
// Clear the buffer if we fail to decode/apply an edit.
|
||||
read_buffer->Clear();
|
||||
}
|
||||
TEST_SYNC_POINT_CALLBACK("VersionSet::ReadAndRecover:RecoveredEdits",
|
||||
&recovered_edits);
|
||||
return s;
|
||||
}
|
||||
|
||||
Status VersionSet::Recover(
|
||||
const std::vector<ColumnFamilyDescriptor>& column_families, bool read_only,
|
||||
std::string* db_id) {
|
||||
@ -5886,8 +5711,7 @@ ReactiveVersionSet::ReactiveVersionSet(
|
||||
const std::shared_ptr<IOTracer>& io_tracer)
|
||||
: VersionSet(dbname, _db_options, _file_options, table_cache,
|
||||
write_buffer_manager, write_controller,
|
||||
/*block_cache_tracer=*/nullptr, io_tracer),
|
||||
number_of_edits_to_skip_(0) {}
|
||||
/*block_cache_tracer=*/nullptr, io_tracer) {}
|
||||
|
||||
ReactiveVersionSet::~ReactiveVersionSet() {}
|
||||
|
||||
@ -5900,394 +5724,44 @@ Status ReactiveVersionSet::Recover(
|
||||
assert(manifest_reporter != nullptr);
|
||||
assert(manifest_reader_status != nullptr);
|
||||
|
||||
std::unordered_map<std::string, ColumnFamilyOptions> cf_name_to_options;
|
||||
for (const auto& cf : column_families) {
|
||||
cf_name_to_options.insert({cf.name, cf.options});
|
||||
}
|
||||
|
||||
// add default column family
|
||||
auto default_cf_iter = cf_name_to_options.find(kDefaultColumnFamilyName);
|
||||
if (default_cf_iter == cf_name_to_options.end()) {
|
||||
return Status::InvalidArgument("Default column family not specified");
|
||||
}
|
||||
VersionEdit default_cf_edit;
|
||||
default_cf_edit.AddColumnFamily(kDefaultColumnFamilyName);
|
||||
default_cf_edit.SetColumnFamily(0);
|
||||
ColumnFamilyData* default_cfd =
|
||||
CreateColumnFamily(default_cf_iter->second, &default_cf_edit);
|
||||
// In recovery, nobody else can access it, so it's fine to set it to be
|
||||
// initialized earlier.
|
||||
default_cfd->set_initialized();
|
||||
VersionBuilderMap builders;
|
||||
std::unordered_map<int, std::string> column_families_not_found;
|
||||
builders.insert(
|
||||
std::make_pair(0, std::unique_ptr<BaseReferencedVersionBuilder>(
|
||||
new BaseReferencedVersionBuilder(default_cfd))));
|
||||
|
||||
manifest_reader_status->reset(new Status());
|
||||
manifest_reporter->reset(new LogReporter());
|
||||
static_cast_with_check<LogReporter>(manifest_reporter->get())->status =
|
||||
manifest_reader_status->get();
|
||||
Status s = MaybeSwitchManifest(manifest_reporter->get(), manifest_reader);
|
||||
log::Reader* reader = manifest_reader->get();
|
||||
assert(reader);
|
||||
|
||||
int retry = 0;
|
||||
VersionEdit version_edit;
|
||||
while (s.ok() && retry < 1) {
|
||||
assert(reader != nullptr);
|
||||
s = ReadAndRecover(*reader, &read_buffer_, cf_name_to_options,
|
||||
column_families_not_found, builders,
|
||||
manifest_reader_status->get(), &version_edit);
|
||||
if (s.ok()) {
|
||||
bool enough = version_edit.has_next_file_number_ &&
|
||||
version_edit.has_log_number_ &&
|
||||
version_edit.has_last_sequence_;
|
||||
if (enough) {
|
||||
for (const auto& cf : column_families) {
|
||||
auto cfd = column_family_set_->GetColumnFamily(cf.name);
|
||||
if (cfd == nullptr) {
|
||||
enough = false;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
if (enough) {
|
||||
for (const auto& cf : column_families) {
|
||||
auto cfd = column_family_set_->GetColumnFamily(cf.name);
|
||||
assert(cfd != nullptr);
|
||||
if (!cfd->IsDropped()) {
|
||||
auto builder_iter = builders.find(cfd->GetID());
|
||||
assert(builder_iter != builders.end());
|
||||
auto builder = builder_iter->second->version_builder();
|
||||
assert(builder != nullptr);
|
||||
s = builder->LoadTableHandlers(
|
||||
cfd->internal_stats(), db_options_->max_file_opening_threads,
|
||||
false /* prefetch_index_and_filter_in_cache */,
|
||||
true /* is_initial_load */,
|
||||
cfd->GetLatestMutableCFOptions()->prefix_extractor.get(),
|
||||
MaxFileSizeForL0MetaPin(*cfd->GetLatestMutableCFOptions()));
|
||||
if (!s.ok()) {
|
||||
enough = false;
|
||||
if (s.IsPathNotFound()) {
|
||||
s = Status::OK();
|
||||
}
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
if (enough) {
|
||||
break;
|
||||
}
|
||||
}
|
||||
++retry;
|
||||
}
|
||||
manifest_tailer_.reset(new ManifestTailer(
|
||||
column_families, const_cast<ReactiveVersionSet*>(this), io_tracer_));
|
||||
|
||||
if (s.ok()) {
|
||||
if (!version_edit.has_prev_log_number_) {
|
||||
version_edit.prev_log_number_ = 0;
|
||||
}
|
||||
column_family_set_->UpdateMaxColumnFamily(version_edit.max_column_family_);
|
||||
manifest_tailer_->Iterate(*reader, manifest_reader_status->get());
|
||||
|
||||
MarkMinLogNumberToKeep2PC(version_edit.min_log_number_to_keep_);
|
||||
MarkFileNumberUsed(version_edit.prev_log_number_);
|
||||
MarkFileNumberUsed(version_edit.log_number_);
|
||||
|
||||
for (auto cfd : *column_family_set_) {
|
||||
assert(builders.count(cfd->GetID()) > 0);
|
||||
auto builder = builders[cfd->GetID()]->version_builder();
|
||||
if (!builder->CheckConsistencyForNumLevels()) {
|
||||
s = Status::InvalidArgument(
|
||||
"db has more levels than options.num_levels");
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (s.ok()) {
|
||||
for (auto cfd : *column_family_set_) {
|
||||
if (cfd->IsDropped()) {
|
||||
continue;
|
||||
}
|
||||
assert(cfd->initialized());
|
||||
auto builders_iter = builders.find(cfd->GetID());
|
||||
assert(builders_iter != builders.end());
|
||||
auto* builder = builders_iter->second->version_builder();
|
||||
|
||||
Version* v = new Version(cfd, this, file_options_,
|
||||
*cfd->GetLatestMutableCFOptions(), io_tracer_,
|
||||
current_version_number_++);
|
||||
s = builder->SaveTo(v->storage_info());
|
||||
|
||||
if (s.ok()) {
|
||||
// Install recovered version
|
||||
v->PrepareApply(*cfd->GetLatestMutableCFOptions(),
|
||||
!(db_options_->skip_stats_update_on_db_open));
|
||||
AppendVersion(cfd, v);
|
||||
} else {
|
||||
ROCKS_LOG_ERROR(db_options_->info_log,
|
||||
"[%s]: inconsistent version: %s\n",
|
||||
cfd->GetName().c_str(), s.ToString().c_str());
|
||||
delete v;
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
if (s.ok()) {
|
||||
next_file_number_.store(version_edit.next_file_number_ + 1);
|
||||
last_allocated_sequence_ = version_edit.last_sequence_;
|
||||
last_published_sequence_ = version_edit.last_sequence_;
|
||||
last_sequence_ = version_edit.last_sequence_;
|
||||
prev_log_number_ = version_edit.prev_log_number_;
|
||||
for (auto cfd : *column_family_set_) {
|
||||
if (cfd->IsDropped()) {
|
||||
continue;
|
||||
}
|
||||
ROCKS_LOG_INFO(db_options_->info_log,
|
||||
"Column family [%s] (ID %u), log number is %" PRIu64 "\n",
|
||||
cfd->GetName().c_str(), cfd->GetID(), cfd->GetLogNumber());
|
||||
}
|
||||
}
|
||||
return s;
|
||||
return manifest_tailer_->status();
|
||||
}
|
||||
|
||||
Status ReactiveVersionSet::ReadAndApply(
|
||||
InstrumentedMutex* mu,
|
||||
std::unique_ptr<log::FragmentBufferedReader>* manifest_reader,
|
||||
Status* manifest_read_status,
|
||||
std::unordered_set<ColumnFamilyData*>* cfds_changed) {
|
||||
assert(manifest_reader != nullptr);
|
||||
assert(cfds_changed != nullptr);
|
||||
mu->AssertHeld();
|
||||
|
||||
Status s;
|
||||
uint64_t applied_edits = 0;
|
||||
while (s.ok()) {
|
||||
Slice record;
|
||||
std::string scratch;
|
||||
log::Reader* reader = manifest_reader->get();
|
||||
std::string old_manifest_path = reader->file()->file_name();
|
||||
while (reader->ReadRecord(&record, &scratch)) {
|
||||
VersionEdit edit;
|
||||
s = edit.DecodeFrom(record);
|
||||
if (!s.ok()) {
|
||||
break;
|
||||
}
|
||||
|
||||
// Skip the first VersionEdits of each MANIFEST generated by
|
||||
// VersionSet::WriteCurrentStatetoManifest.
|
||||
if (number_of_edits_to_skip_ > 0) {
|
||||
ColumnFamilyData* cfd =
|
||||
column_family_set_->GetColumnFamily(edit.column_family_);
|
||||
if (cfd != nullptr && !cfd->IsDropped()) {
|
||||
--number_of_edits_to_skip_;
|
||||
}
|
||||
continue;
|
||||
}
|
||||
|
||||
s = read_buffer_.AddEdit(&edit);
|
||||
if (!s.ok()) {
|
||||
break;
|
||||
}
|
||||
VersionEdit temp_edit;
|
||||
if (edit.is_in_atomic_group_) {
|
||||
if (read_buffer_.IsFull()) {
|
||||
// Apply edits in an atomic group when we have read all edits in the
|
||||
// group.
|
||||
for (auto& e : read_buffer_.replay_buffer()) {
|
||||
s = ApplyOneVersionEditToBuilder(e, cfds_changed, &temp_edit);
|
||||
if (!s.ok()) {
|
||||
break;
|
||||
}
|
||||
applied_edits++;
|
||||
}
|
||||
if (!s.ok()) {
|
||||
break;
|
||||
}
|
||||
read_buffer_.Clear();
|
||||
}
|
||||
} else {
|
||||
// Apply a normal edit immediately.
|
||||
s = ApplyOneVersionEditToBuilder(edit, cfds_changed, &temp_edit);
|
||||
if (s.ok()) {
|
||||
applied_edits++;
|
||||
} else {
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
if (!s.ok()) {
|
||||
// Clear the buffer if we fail to decode/apply an edit.
|
||||
read_buffer_.Clear();
|
||||
}
|
||||
// It's possible that:
|
||||
// 1) s.IsCorruption(), indicating the current MANIFEST is corrupted.
|
||||
// Or the version(s) rebuilt from tailing the MANIFEST is inconsistent.
|
||||
// 2) we have finished reading the current MANIFEST.
|
||||
// 3) we have encountered an IOError reading the current MANIFEST.
|
||||
// We need to look for the next MANIFEST and start from there. If we cannot
|
||||
// find the next MANIFEST, we should exit the loop.
|
||||
Status tmp_s = MaybeSwitchManifest(reader->GetReporter(), manifest_reader);
|
||||
reader = manifest_reader->get();
|
||||
if (tmp_s.ok()) {
|
||||
if (reader->file()->file_name() == old_manifest_path) {
|
||||
// Still processing the same MANIFEST, thus no need to continue this
|
||||
// loop since no record is available if we have reached here.
|
||||
break;
|
||||
} else {
|
||||
// We have switched to a new MANIFEST whose first records have been
|
||||
// generated by VersionSet::WriteCurrentStatetoManifest. Since the
|
||||
// secondary instance has already finished recovering upon start, there
|
||||
// is no need for the secondary to process these records. Actually, if
|
||||
// the secondary were to replay these records, the secondary may end up
|
||||
// adding the same SST files AGAIN to each column family, causing
|
||||
// consistency checks done by VersionBuilder to fail. Therefore, we
|
||||
// record the number of records to skip at the beginning of the new
|
||||
// MANIFEST and ignore them.
|
||||
number_of_edits_to_skip_ = 0;
|
||||
for (auto* cfd : *column_family_set_) {
|
||||
if (cfd->IsDropped()) {
|
||||
continue;
|
||||
}
|
||||
// Increase number_of_edits_to_skip by 2 because
|
||||
// WriteCurrentStatetoManifest() writes 2 version edits for each
|
||||
// column family at the beginning of the newly-generated MANIFEST.
|
||||
// TODO(yanqin) remove hard-coded value.
|
||||
if (db_options_->write_dbid_to_manifest) {
|
||||
number_of_edits_to_skip_ += 3;
|
||||
} else {
|
||||
number_of_edits_to_skip_ += 2;
|
||||
}
|
||||
}
|
||||
s = tmp_s;
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
if (s.ok()) {
|
||||
for (auto cfd : *column_family_set_) {
|
||||
auto builder_iter = active_version_builders_.find(cfd->GetID());
|
||||
if (builder_iter == active_version_builders_.end()) {
|
||||
continue;
|
||||
}
|
||||
auto builder = builder_iter->second->version_builder();
|
||||
if (!builder->CheckConsistencyForNumLevels()) {
|
||||
s = Status::InvalidArgument(
|
||||
"db has more levels than options.num_levels");
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
TEST_SYNC_POINT_CALLBACK("ReactiveVersionSet::ReadAndApply:AppliedEdits",
|
||||
&applied_edits);
|
||||
return s;
|
||||
}
|
||||
|
||||
Status ReactiveVersionSet::ApplyOneVersionEditToBuilder(
|
||||
VersionEdit& edit, std::unordered_set<ColumnFamilyData*>* cfds_changed,
|
||||
VersionEdit* version_edit) {
|
||||
ColumnFamilyData* cfd =
|
||||
column_family_set_->GetColumnFamily(edit.column_family_);
|
||||
|
||||
// If we cannot find this column family in our column family set, then it
|
||||
// may be a new column family created by the primary after the secondary
|
||||
// starts. It is also possible that the secondary instance opens only a subset
|
||||
// of column families. Ignore it for now.
|
||||
if (nullptr == cfd) {
|
||||
return Status::OK();
|
||||
}
|
||||
if (active_version_builders_.find(edit.column_family_) ==
|
||||
active_version_builders_.end() &&
|
||||
!cfd->IsDropped()) {
|
||||
std::unique_ptr<BaseReferencedVersionBuilder> builder_guard(
|
||||
new BaseReferencedVersionBuilder(cfd));
|
||||
active_version_builders_.insert(
|
||||
std::make_pair(edit.column_family_, std::move(builder_guard)));
|
||||
}
|
||||
|
||||
auto builder_iter = active_version_builders_.find(edit.column_family_);
|
||||
assert(builder_iter != active_version_builders_.end());
|
||||
auto builder = builder_iter->second->version_builder();
|
||||
assert(builder != nullptr);
|
||||
|
||||
if (edit.is_column_family_add_) {
|
||||
// TODO (yanqin) for now the secondary ignores column families created
|
||||
// after Open. This also simplifies handling of switching to a new MANIFEST
|
||||
// and processing the snapshot of the system at the beginning of the
|
||||
// MANIFEST.
|
||||
} else if (edit.is_column_family_drop_) {
|
||||
// Drop the column family by setting it to be 'dropped' without destroying
|
||||
// the column family handle.
|
||||
// TODO (haoyu) figure out how to handle column faimly drop for
|
||||
// secondary instance. (Is it possible that the ref count for cfd is 0 but
|
||||
// the ref count for its versions is higher than 0?)
|
||||
cfd->SetDropped();
|
||||
if (cfd->UnrefAndTryDelete()) {
|
||||
cfd = nullptr;
|
||||
}
|
||||
active_version_builders_.erase(builder_iter);
|
||||
} else {
|
||||
Status s = builder->Apply(&edit);
|
||||
if (!s.ok()) {
|
||||
return s;
|
||||
}
|
||||
}
|
||||
Status s = ExtractInfoFromVersionEdit(cfd, edit, version_edit);
|
||||
log::Reader* reader = manifest_reader->get();
|
||||
assert(reader);
|
||||
s = MaybeSwitchManifest(reader->GetReporter(), manifest_reader);
|
||||
if (!s.ok()) {
|
||||
return s;
|
||||
}
|
||||
|
||||
if (cfd != nullptr && !cfd->IsDropped()) {
|
||||
s = builder->LoadTableHandlers(
|
||||
cfd->internal_stats(), db_options_->max_file_opening_threads,
|
||||
false /* prefetch_index_and_filter_in_cache */,
|
||||
false /* is_initial_load */,
|
||||
cfd->GetLatestMutableCFOptions()->prefix_extractor.get(),
|
||||
MaxFileSizeForL0MetaPin(*cfd->GetLatestMutableCFOptions()));
|
||||
TEST_SYNC_POINT_CALLBACK(
|
||||
"ReactiveVersionSet::ApplyOneVersionEditToBuilder:"
|
||||
"AfterLoadTableHandlers",
|
||||
&s);
|
||||
|
||||
if (s.ok()) {
|
||||
auto version = new Version(cfd, this, file_options_,
|
||||
*cfd->GetLatestMutableCFOptions(), io_tracer_,
|
||||
current_version_number_++);
|
||||
s = builder->SaveTo(version->storage_info());
|
||||
if (s.ok()) {
|
||||
version->PrepareApply(*cfd->GetLatestMutableCFOptions(), true);
|
||||
AppendVersion(cfd, version);
|
||||
active_version_builders_.erase(builder_iter);
|
||||
if (cfds_changed->count(cfd) == 0) {
|
||||
cfds_changed->insert(cfd);
|
||||
}
|
||||
} else {
|
||||
delete version;
|
||||
}
|
||||
} else if (s.IsPathNotFound()) {
|
||||
s = Status::OK();
|
||||
}
|
||||
// Some other error has occurred during LoadTableHandlers.
|
||||
}
|
||||
|
||||
manifest_tailer_->Iterate(*(manifest_reader->get()), manifest_read_status);
|
||||
s = manifest_tailer_->status();
|
||||
if (s.ok()) {
|
||||
if (version_edit->HasNextFile()) {
|
||||
next_file_number_.store(version_edit->next_file_number_ + 1);
|
||||
}
|
||||
if (version_edit->has_last_sequence_) {
|
||||
last_allocated_sequence_ = version_edit->last_sequence_;
|
||||
last_published_sequence_ = version_edit->last_sequence_;
|
||||
last_sequence_ = version_edit->last_sequence_;
|
||||
}
|
||||
if (version_edit->has_prev_log_number_) {
|
||||
prev_log_number_ = version_edit->prev_log_number_;
|
||||
MarkFileNumberUsed(version_edit->prev_log_number_);
|
||||
}
|
||||
if (version_edit->has_log_number_) {
|
||||
MarkFileNumberUsed(version_edit->log_number_);
|
||||
}
|
||||
column_family_set_->UpdateMaxColumnFamily(version_edit->max_column_family_);
|
||||
MarkMinLogNumberToKeep2PC(version_edit->min_log_number_to_keep_);
|
||||
*cfds_changed = std::move(manifest_tailer_->GetUpdatedColumnFamilies());
|
||||
}
|
||||
|
||||
return s;
|
||||
}
|
||||
|
||||
@ -6328,15 +5802,24 @@ Status ReactiveVersionSet::MaybeSwitchManifest(
|
||||
true /* checksum */, 0 /* log_number */));
|
||||
ROCKS_LOG_INFO(db_options_->info_log, "Switched to new manifest: %s\n",
|
||||
manifest_path.c_str());
|
||||
// TODO (yanqin) every time we switch to a new MANIFEST, we clear the
|
||||
// active_version_builders_ map because we choose to construct the
|
||||
// versions from scratch, thanks to the first part of each MANIFEST
|
||||
// written by VersionSet::WriteCurrentStatetoManifest. This is not
|
||||
// necessary, but we choose this at present for the sake of simplicity.
|
||||
active_version_builders_.clear();
|
||||
if (manifest_tailer_) {
|
||||
manifest_tailer_->PrepareToReadNewManifest();
|
||||
}
|
||||
}
|
||||
} while (s.IsPathNotFound());
|
||||
return s;
|
||||
}
|
||||
|
||||
#ifndef NDEBUG
|
||||
uint64_t ReactiveVersionSet::TEST_read_edits_in_atomic_group() const {
|
||||
assert(manifest_tailer_);
|
||||
return manifest_tailer_->GetReadBuffer().TEST_read_edits_in_atomic_group();
|
||||
}
|
||||
#endif // !NDEBUG
|
||||
|
||||
std::vector<VersionEdit>& ReactiveVersionSet::replay_buffer() {
|
||||
assert(manifest_tailer_);
|
||||
return manifest_tailer_->GetReadBuffer().replay_buffer();
|
||||
}
|
||||
|
||||
} // namespace ROCKSDB_NAMESPACE
|
||||
|
||||
@ -72,6 +72,7 @@ class MergeContext;
|
||||
class ColumnFamilySet;
|
||||
class MergeIteratorBuilder;
|
||||
class SystemClock;
|
||||
class ManifestTailer;
|
||||
|
||||
// VersionEdit is always supposed to be valid and it is used to point at
|
||||
// entries in Manifest. Ideally it should not be used as a container to
|
||||
@ -772,10 +773,8 @@ class Version {
|
||||
|
||||
ColumnFamilyData* cfd() const { return cfd_; }
|
||||
|
||||
// Return the next Version in the linked list. Used for debug only
|
||||
Version* TEST_Next() const {
|
||||
return next_;
|
||||
}
|
||||
// Return the next Version in the linked list.
|
||||
Version* Next() const { return next_; }
|
||||
|
||||
int TEST_refs() const { return refs_; }
|
||||
|
||||
@ -910,6 +909,7 @@ class BaseReferencedVersionBuilder;
|
||||
|
||||
class AtomicGroupReadBuffer {
|
||||
public:
|
||||
AtomicGroupReadBuffer() = default;
|
||||
Status AddEdit(VersionEdit* edit);
|
||||
void Clear();
|
||||
bool IsFull() const;
|
||||
@ -1331,25 +1331,6 @@ class VersionSet {
|
||||
ColumnFamilyData* CreateColumnFamily(const ColumnFamilyOptions& cf_options,
|
||||
const VersionEdit* edit);
|
||||
|
||||
Status ReadAndRecover(
|
||||
log::Reader& reader, AtomicGroupReadBuffer* read_buffer,
|
||||
const std::unordered_map<std::string, ColumnFamilyOptions>&
|
||||
name_to_options,
|
||||
std::unordered_map<int, std::string>& column_families_not_found,
|
||||
std::unordered_map<
|
||||
uint32_t, std::unique_ptr<BaseReferencedVersionBuilder>>& builders,
|
||||
Status* log_read_status, VersionEditParams* version_edit,
|
||||
std::string* db_id = nullptr);
|
||||
|
||||
// REQUIRES db mutex
|
||||
Status ApplyOneVersionEditToBuilder(
|
||||
VersionEdit& edit,
|
||||
const std::unordered_map<std::string, ColumnFamilyOptions>& name_to_opts,
|
||||
std::unordered_map<int, std::string>& column_families_not_found,
|
||||
std::unordered_map<
|
||||
uint32_t, std::unique_ptr<BaseReferencedVersionBuilder>>& builders,
|
||||
VersionEditParams* version_edit);
|
||||
|
||||
Status ExtractInfoFromVersionEdit(ColumnFamilyData* cfd,
|
||||
const VersionEdit& from_edit,
|
||||
VersionEditParams* version_edit_params);
|
||||
@ -1449,23 +1430,20 @@ class ReactiveVersionSet : public VersionSet {
|
||||
Status ReadAndApply(
|
||||
InstrumentedMutex* mu,
|
||||
std::unique_ptr<log::FragmentBufferedReader>* manifest_reader,
|
||||
Status* manifest_read_status,
|
||||
std::unordered_set<ColumnFamilyData*>* cfds_changed);
|
||||
|
||||
Status Recover(const std::vector<ColumnFamilyDescriptor>& column_families,
|
||||
std::unique_ptr<log::FragmentBufferedReader>* manifest_reader,
|
||||
std::unique_ptr<log::Reader::Reporter>* manifest_reporter,
|
||||
std::unique_ptr<Status>* manifest_reader_status);
|
||||
#ifndef NDEBUG
|
||||
uint64_t TEST_read_edits_in_atomic_group() const;
|
||||
#endif //! NDEBUG
|
||||
|
||||
uint64_t TEST_read_edits_in_atomic_group() const {
|
||||
return read_buffer_.TEST_read_edits_in_atomic_group();
|
||||
}
|
||||
std::vector<VersionEdit>& replay_buffer() {
|
||||
return read_buffer_.replay_buffer();
|
||||
}
|
||||
std::vector<VersionEdit>& replay_buffer();
|
||||
|
||||
protected:
|
||||
using VersionSet::ApplyOneVersionEditToBuilder;
|
||||
|
||||
// REQUIRES db mutex
|
||||
Status ApplyOneVersionEditToBuilder(
|
||||
VersionEdit& edit, std::unordered_set<ColumnFamilyData*>* cfds_changed,
|
||||
@ -1476,11 +1454,7 @@ class ReactiveVersionSet : public VersionSet {
|
||||
std::unique_ptr<log::FragmentBufferedReader>* manifest_reader);
|
||||
|
||||
private:
|
||||
VersionBuilderMap active_version_builders_;
|
||||
AtomicGroupReadBuffer read_buffer_;
|
||||
// Number of version edits to skip by ReadAndApply at the beginning of a new
|
||||
// MANIFEST created by primary.
|
||||
int number_of_edits_to_skip_;
|
||||
std::unique_ptr<ManifestTailer> manifest_tailer_;
|
||||
|
||||
using VersionSet::LogAndApply;
|
||||
using VersionSet::Recover;
|
||||
|
||||
@ -1883,13 +1883,6 @@ class VersionSetAtomicGroupTest : public VersionSetTestBase,
|
||||
"VersionEditHandlerBase::Iterate:Finish", [&](void* arg) {
|
||||
num_recovered_edits_ = *reinterpret_cast<int*>(arg);
|
||||
});
|
||||
SyncPoint::GetInstance()->SetCallBack(
|
||||
"VersionSet::ReadAndRecover:RecoveredEdits", [&](void* arg) {
|
||||
num_recovered_edits_ = *reinterpret_cast<int*>(arg);
|
||||
});
|
||||
SyncPoint::GetInstance()->SetCallBack(
|
||||
"ReactiveVersionSet::ReadAndApply:AppliedEdits",
|
||||
[&](void* arg) { num_applied_edits_ = *reinterpret_cast<int*>(arg); });
|
||||
SyncPoint::GetInstance()->SetCallBack(
|
||||
"AtomicGroupReadBuffer::AddEdit:AtomicGroup",
|
||||
[&](void* /* arg */) { ++num_edits_in_atomic_group_; });
|
||||
@ -1929,7 +1922,6 @@ class VersionSetAtomicGroupTest : public VersionSetTestBase,
|
||||
bool last_in_atomic_group_ = false;
|
||||
int num_edits_in_atomic_group_ = 0;
|
||||
int num_recovered_edits_ = 0;
|
||||
int num_applied_edits_ = 0;
|
||||
VersionEdit corrupted_edit_;
|
||||
VersionEdit edit_with_incorrect_group_size_;
|
||||
std::unique_ptr<log::Writer> log_writer_;
|
||||
@ -1945,7 +1937,6 @@ TEST_F(VersionSetAtomicGroupTest, HandleValidAtomicGroupWithVersionSetRecover) {
|
||||
EXPECT_TRUE(first_in_atomic_group_);
|
||||
EXPECT_TRUE(last_in_atomic_group_);
|
||||
EXPECT_EQ(num_initial_edits_ + kAtomicGroupSize, num_recovered_edits_);
|
||||
EXPECT_EQ(0, num_applied_edits_);
|
||||
}
|
||||
|
||||
TEST_F(VersionSetAtomicGroupTest,
|
||||
@ -1967,7 +1958,6 @@ TEST_F(VersionSetAtomicGroupTest,
|
||||
EXPECT_TRUE(reactive_versions_->TEST_read_edits_in_atomic_group() == 0);
|
||||
EXPECT_TRUE(reactive_versions_->replay_buffer().size() == 0);
|
||||
EXPECT_EQ(num_initial_edits_ + kAtomicGroupSize, num_recovered_edits_);
|
||||
EXPECT_EQ(0, num_applied_edits_);
|
||||
}
|
||||
|
||||
TEST_F(VersionSetAtomicGroupTest,
|
||||
@ -1980,20 +1970,20 @@ TEST_F(VersionSetAtomicGroupTest,
|
||||
EXPECT_OK(reactive_versions_->Recover(column_families_, &manifest_reader,
|
||||
&manifest_reporter,
|
||||
&manifest_reader_status));
|
||||
EXPECT_EQ(num_initial_edits_, num_recovered_edits_);
|
||||
AddNewEditsToLog(kAtomicGroupSize);
|
||||
InstrumentedMutex mu;
|
||||
std::unordered_set<ColumnFamilyData*> cfds_changed;
|
||||
mu.Lock();
|
||||
EXPECT_OK(
|
||||
reactive_versions_->ReadAndApply(&mu, &manifest_reader, &cfds_changed));
|
||||
EXPECT_OK(reactive_versions_->ReadAndApply(
|
||||
&mu, &manifest_reader, manifest_reader_status.get(), &cfds_changed));
|
||||
mu.Unlock();
|
||||
EXPECT_TRUE(first_in_atomic_group_);
|
||||
EXPECT_TRUE(last_in_atomic_group_);
|
||||
// The recover should clean up the replay buffer.
|
||||
EXPECT_TRUE(reactive_versions_->TEST_read_edits_in_atomic_group() == 0);
|
||||
EXPECT_TRUE(reactive_versions_->replay_buffer().size() == 0);
|
||||
EXPECT_EQ(num_initial_edits_, num_recovered_edits_);
|
||||
EXPECT_EQ(kAtomicGroupSize, num_applied_edits_);
|
||||
EXPECT_EQ(kAtomicGroupSize, num_recovered_edits_);
|
||||
}
|
||||
|
||||
TEST_F(VersionSetAtomicGroupTest,
|
||||
@ -2009,7 +1999,6 @@ TEST_F(VersionSetAtomicGroupTest,
|
||||
EXPECT_FALSE(last_in_atomic_group_);
|
||||
EXPECT_EQ(kNumberOfPersistedVersionEdits, num_edits_in_atomic_group_);
|
||||
EXPECT_EQ(num_initial_edits_, num_recovered_edits_);
|
||||
EXPECT_EQ(0, num_applied_edits_);
|
||||
}
|
||||
|
||||
TEST_F(VersionSetAtomicGroupTest,
|
||||
@ -2041,14 +2030,13 @@ TEST_F(VersionSetAtomicGroupTest,
|
||||
InstrumentedMutex mu;
|
||||
std::unordered_set<ColumnFamilyData*> cfds_changed;
|
||||
mu.Lock();
|
||||
EXPECT_OK(
|
||||
reactive_versions_->ReadAndApply(&mu, &manifest_reader, &cfds_changed));
|
||||
EXPECT_OK(reactive_versions_->ReadAndApply(
|
||||
&mu, &manifest_reader, manifest_reader_status.get(), &cfds_changed));
|
||||
mu.Unlock();
|
||||
// Reactive version set should be empty now.
|
||||
EXPECT_TRUE(reactive_versions_->TEST_read_edits_in_atomic_group() == 0);
|
||||
EXPECT_TRUE(reactive_versions_->replay_buffer().size() == 0);
|
||||
EXPECT_EQ(num_initial_edits_, num_recovered_edits_);
|
||||
EXPECT_EQ(kAtomicGroupSize, num_applied_edits_);
|
||||
}
|
||||
|
||||
TEST_F(VersionSetAtomicGroupTest,
|
||||
@ -2065,13 +2053,14 @@ TEST_F(VersionSetAtomicGroupTest,
|
||||
&manifest_reader_status));
|
||||
EXPECT_EQ(column_families_.size(),
|
||||
reactive_versions_->GetColumnFamilySet()->NumberOfColumnFamilies());
|
||||
EXPECT_EQ(num_initial_edits_, num_recovered_edits_);
|
||||
// Write a few edits in an atomic group.
|
||||
AddNewEditsToLog(kNumberOfPersistedVersionEdits);
|
||||
InstrumentedMutex mu;
|
||||
std::unordered_set<ColumnFamilyData*> cfds_changed;
|
||||
mu.Lock();
|
||||
EXPECT_OK(
|
||||
reactive_versions_->ReadAndApply(&mu, &manifest_reader, &cfds_changed));
|
||||
EXPECT_OK(reactive_versions_->ReadAndApply(
|
||||
&mu, &manifest_reader, manifest_reader_status.get(), &cfds_changed));
|
||||
mu.Unlock();
|
||||
EXPECT_TRUE(first_in_atomic_group_);
|
||||
EXPECT_FALSE(last_in_atomic_group_);
|
||||
@ -2080,8 +2069,6 @@ TEST_F(VersionSetAtomicGroupTest,
|
||||
EXPECT_TRUE(reactive_versions_->TEST_read_edits_in_atomic_group() ==
|
||||
kNumberOfPersistedVersionEdits);
|
||||
EXPECT_TRUE(reactive_versions_->replay_buffer().size() == kAtomicGroupSize);
|
||||
EXPECT_EQ(num_initial_edits_, num_recovered_edits_);
|
||||
EXPECT_EQ(0, num_applied_edits_);
|
||||
}
|
||||
|
||||
TEST_F(VersionSetAtomicGroupTest,
|
||||
@ -2128,8 +2115,8 @@ TEST_F(VersionSetAtomicGroupTest,
|
||||
// Write the corrupted edits.
|
||||
AddNewEditsToLog(kAtomicGroupSize);
|
||||
mu.Lock();
|
||||
EXPECT_NOK(
|
||||
reactive_versions_->ReadAndApply(&mu, &manifest_reader, &cfds_changed));
|
||||
EXPECT_NOK(reactive_versions_->ReadAndApply(
|
||||
&mu, &manifest_reader, manifest_reader_status.get(), &cfds_changed));
|
||||
mu.Unlock();
|
||||
EXPECT_EQ(edits_[kAtomicGroupSize / 2].DebugString(),
|
||||
corrupted_edit_.DebugString());
|
||||
@ -2178,8 +2165,8 @@ TEST_F(VersionSetAtomicGroupTest,
|
||||
&manifest_reader_status));
|
||||
AddNewEditsToLog(kAtomicGroupSize);
|
||||
mu.Lock();
|
||||
EXPECT_NOK(
|
||||
reactive_versions_->ReadAndApply(&mu, &manifest_reader, &cfds_changed));
|
||||
EXPECT_NOK(reactive_versions_->ReadAndApply(
|
||||
&mu, &manifest_reader, manifest_reader_status.get(), &cfds_changed));
|
||||
mu.Unlock();
|
||||
EXPECT_EQ(edits_[1].DebugString(),
|
||||
edit_with_incorrect_group_size_.DebugString());
|
||||
|
||||
Loading…
Reference in New Issue
Block a user