fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph
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744 lines
28 KiB
744 lines
28 KiB
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under both the GPLv2 (found in the
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// COPYING file in the root directory) and Apache 2.0 License
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// (found in the LICENSE.Apache file in the root directory).
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#include "db/flush_job.h"
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#include <algorithm>
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#include <array>
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#include <map>
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#include <string>
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#include "db/blob/blob_index.h"
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#include "db/column_family.h"
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#include "db/db_impl/db_impl.h"
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#include "db/version_set.h"
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#include "file/writable_file_writer.h"
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#include "rocksdb/cache.h"
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#include "rocksdb/file_system.h"
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#include "rocksdb/write_buffer_manager.h"
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#include "table/mock_table.h"
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#include "test_util/testharness.h"
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#include "test_util/testutil.h"
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#include "util/random.h"
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#include "util/string_util.h"
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namespace ROCKSDB_NAMESPACE {
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// TODO(icanadi) Mock out everything else:
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// 1. VersionSet
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// 2. Memtable
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class FlushJobTestBase : public testing::Test {
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protected:
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FlushJobTestBase(std::string dbname, const Comparator* ucmp)
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: env_(Env::Default()),
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fs_(env_->GetFileSystem()),
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dbname_(std::move(dbname)),
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ucmp_(ucmp),
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options_(),
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db_options_(options_),
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column_family_names_({kDefaultColumnFamilyName, "foo", "bar"}),
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table_cache_(NewLRUCache(50000, 16)),
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write_buffer_manager_(db_options_.db_write_buffer_size),
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shutting_down_(false),
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mock_table_factory_(new mock::MockTableFactory()) {}
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virtual ~FlushJobTestBase() {
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if (getenv("KEEP_DB")) {
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fprintf(stdout, "db is still in %s\n", dbname_.c_str());
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} else {
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// destroy versions_ to release all file handles
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versions_.reset();
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EXPECT_OK(DestroyDir(env_, dbname_));
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}
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}
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void NewDB() {
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ASSERT_OK(SetIdentityFile(env_, dbname_));
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VersionEdit new_db;
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new_db.SetLogNumber(0);
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new_db.SetNextFile(2);
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new_db.SetLastSequence(0);
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autovector<VersionEdit> new_cfs;
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SequenceNumber last_seq = 1;
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uint32_t cf_id = 1;
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for (size_t i = 1; i != column_family_names_.size(); ++i) {
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VersionEdit new_cf;
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new_cf.AddColumnFamily(column_family_names_[i]);
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new_cf.SetColumnFamily(cf_id++);
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new_cf.SetComparatorName(ucmp_->Name());
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new_cf.SetLogNumber(0);
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new_cf.SetNextFile(2);
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new_cf.SetLastSequence(last_seq++);
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new_cfs.emplace_back(new_cf);
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}
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const std::string manifest = DescriptorFileName(dbname_, 1);
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const auto& fs = env_->GetFileSystem();
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std::unique_ptr<WritableFileWriter> file_writer;
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Status s = WritableFileWriter::Create(
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fs, manifest, fs->OptimizeForManifestWrite(env_options_), &file_writer,
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nullptr);
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ASSERT_OK(s);
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{
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log::Writer log(std::move(file_writer), 0, false);
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std::string record;
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new_db.EncodeTo(&record);
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s = log.AddRecord(record);
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ASSERT_OK(s);
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for (const auto& e : new_cfs) {
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record.clear();
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e.EncodeTo(&record);
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s = log.AddRecord(record);
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ASSERT_OK(s);
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}
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}
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ASSERT_OK(s);
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// Make "CURRENT" file that points to the new manifest file.
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s = SetCurrentFile(fs_.get(), dbname_, 1, nullptr);
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ASSERT_OK(s);
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}
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void SetUp() override {
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EXPECT_OK(env_->CreateDirIfMissing(dbname_));
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// TODO(icanadi) Remove this once we mock out VersionSet
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NewDB();
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db_options_.env = env_;
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db_options_.fs = fs_;
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db_options_.db_paths.emplace_back(dbname_,
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std::numeric_limits<uint64_t>::max());
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db_options_.statistics = CreateDBStatistics();
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cf_options_.comparator = ucmp_;
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std::vector<ColumnFamilyDescriptor> column_families;
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cf_options_.table_factory = mock_table_factory_;
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for (const auto& cf_name : column_family_names_) {
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column_families.emplace_back(cf_name, cf_options_);
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}
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versions_.reset(
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new VersionSet(dbname_, &db_options_, env_options_, table_cache_.get(),
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&write_buffer_manager_, &write_controller_,
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/*block_cache_tracer=*/nullptr, /*io_tracer=*/nullptr,
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/*db_id*/ "", /*db_session_id*/ ""));
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EXPECT_OK(versions_->Recover(column_families, false));
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}
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Env* env_;
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std::shared_ptr<FileSystem> fs_;
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std::string dbname_;
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const Comparator* const ucmp_;
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EnvOptions env_options_;
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Options options_;
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ImmutableDBOptions db_options_;
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const std::vector<std::string> column_family_names_;
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std::shared_ptr<Cache> table_cache_;
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WriteController write_controller_;
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WriteBufferManager write_buffer_manager_;
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ColumnFamilyOptions cf_options_;
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std::unique_ptr<VersionSet> versions_;
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InstrumentedMutex mutex_;
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std::atomic<bool> shutting_down_;
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std::shared_ptr<mock::MockTableFactory> mock_table_factory_;
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SeqnoToTimeMapping empty_seqno_to_time_mapping_;
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};
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class FlushJobTest : public FlushJobTestBase {
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public:
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FlushJobTest()
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: FlushJobTestBase(test::PerThreadDBPath("flush_job_test"),
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BytewiseComparator()) {}
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};
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TEST_F(FlushJobTest, Empty) {
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JobContext job_context(0);
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auto cfd = versions_->GetColumnFamilySet()->GetDefault();
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EventLogger event_logger(db_options_.info_log.get());
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SnapshotChecker* snapshot_checker = nullptr; // not relavant
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FlushJob flush_job(dbname_, versions_->GetColumnFamilySet()->GetDefault(),
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db_options_, *cfd->GetLatestMutableCFOptions(),
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std::numeric_limits<uint64_t>::max() /* memtable_id */,
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env_options_, versions_.get(), &mutex_, &shutting_down_,
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{}, kMaxSequenceNumber, snapshot_checker, &job_context,
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nullptr, nullptr, nullptr, kNoCompression, nullptr,
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&event_logger, false, true /* sync_output_directory */,
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true /* write_manifest */, Env::Priority::USER,
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nullptr /*IOTracer*/, empty_seqno_to_time_mapping_);
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{
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InstrumentedMutexLock l(&mutex_);
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flush_job.PickMemTable();
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ASSERT_OK(flush_job.Run());
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}
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job_context.Clean();
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}
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TEST_F(FlushJobTest, NonEmpty) {
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JobContext job_context(0);
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auto cfd = versions_->GetColumnFamilySet()->GetDefault();
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auto new_mem = cfd->ConstructNewMemtable(*cfd->GetLatestMutableCFOptions(),
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kMaxSequenceNumber);
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new_mem->Ref();
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auto inserted_keys = mock::MakeMockFile();
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// Test data:
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// seqno [ 1, 2 ... 8998, 8999, 9000, 9001, 9002 ... 9999 ]
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// key [ 1001, 1002 ... 9998, 9999, 0, 1, 2 ... 999 ]
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// range-delete "9995" -> "9999" at seqno 10000
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// blob references with seqnos 10001..10006
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for (int i = 1; i < 10000; ++i) {
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std::string key(std::to_string((i + 1000) % 10000));
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std::string value("value" + key);
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ASSERT_OK(new_mem->Add(SequenceNumber(i), kTypeValue, key, value,
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nullptr /* kv_prot_info */));
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if ((i + 1000) % 10000 < 9995) {
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InternalKey internal_key(key, SequenceNumber(i), kTypeValue);
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inserted_keys.push_back({internal_key.Encode().ToString(), value});
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}
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}
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{
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ASSERT_OK(new_mem->Add(SequenceNumber(10000), kTypeRangeDeletion, "9995",
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"9999a", nullptr /* kv_prot_info */));
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InternalKey internal_key("9995", SequenceNumber(10000), kTypeRangeDeletion);
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inserted_keys.push_back({internal_key.Encode().ToString(), "9999a"});
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}
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// Note: the first two blob references will not be considered when resolving
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// the oldest blob file referenced (the first one is inlined TTL, while the
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// second one is TTL and thus points to a TTL blob file).
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constexpr std::array<uint64_t, 6> blob_file_numbers{{
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kInvalidBlobFileNumber, 5, 103, 17, 102, 101}};
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for (size_t i = 0; i < blob_file_numbers.size(); ++i) {
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std::string key(std::to_string(i + 10001));
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std::string blob_index;
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if (i == 0) {
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BlobIndex::EncodeInlinedTTL(&blob_index, /* expiration */ 1234567890ULL,
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"foo");
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} else if (i == 1) {
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BlobIndex::EncodeBlobTTL(&blob_index, /* expiration */ 1234567890ULL,
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blob_file_numbers[i], /* offset */ i << 10,
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/* size */ i << 20, kNoCompression);
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} else {
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BlobIndex::EncodeBlob(&blob_index, blob_file_numbers[i],
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/* offset */ i << 10, /* size */ i << 20,
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kNoCompression);
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}
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const SequenceNumber seq(i + 10001);
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ASSERT_OK(new_mem->Add(seq, kTypeBlobIndex, key, blob_index,
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nullptr /* kv_prot_info */));
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InternalKey internal_key(key, seq, kTypeBlobIndex);
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inserted_keys.push_back({internal_key.Encode().ToString(), blob_index});
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}
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mock::SortKVVector(&inserted_keys);
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autovector<MemTable*> to_delete;
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new_mem->ConstructFragmentedRangeTombstones();
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cfd->imm()->Add(new_mem, &to_delete);
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for (auto& m : to_delete) {
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delete m;
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}
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EventLogger event_logger(db_options_.info_log.get());
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SnapshotChecker* snapshot_checker = nullptr; // not relavant
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FlushJob flush_job(
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dbname_, versions_->GetColumnFamilySet()->GetDefault(), db_options_,
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*cfd->GetLatestMutableCFOptions(),
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std::numeric_limits<uint64_t>::max() /* memtable_id */, env_options_,
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versions_.get(), &mutex_, &shutting_down_, {}, kMaxSequenceNumber,
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snapshot_checker, &job_context, nullptr, nullptr, nullptr, kNoCompression,
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db_options_.statistics.get(), &event_logger, true,
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true /* sync_output_directory */, true /* write_manifest */,
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Env::Priority::USER, nullptr /*IOTracer*/, empty_seqno_to_time_mapping_);
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HistogramData hist;
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FileMetaData file_meta;
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mutex_.Lock();
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flush_job.PickMemTable();
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ASSERT_OK(flush_job.Run(nullptr, &file_meta));
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mutex_.Unlock();
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db_options_.statistics->histogramData(FLUSH_TIME, &hist);
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ASSERT_GT(hist.average, 0.0);
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ASSERT_EQ(std::to_string(0), file_meta.smallest.user_key().ToString());
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ASSERT_EQ("9999a", file_meta.largest.user_key().ToString());
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ASSERT_EQ(1, file_meta.fd.smallest_seqno);
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ASSERT_EQ(10006, file_meta.fd.largest_seqno);
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ASSERT_EQ(17, file_meta.oldest_blob_file_number);
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mock_table_factory_->AssertSingleFile(inserted_keys);
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job_context.Clean();
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}
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TEST_F(FlushJobTest, FlushMemTablesSingleColumnFamily) {
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const size_t num_mems = 2;
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const size_t num_mems_to_flush = 1;
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const size_t num_keys_per_table = 100;
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JobContext job_context(0);
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ColumnFamilyData* cfd = versions_->GetColumnFamilySet()->GetDefault();
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std::vector<uint64_t> memtable_ids;
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std::vector<MemTable*> new_mems;
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for (size_t i = 0; i != num_mems; ++i) {
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MemTable* mem = cfd->ConstructNewMemtable(*cfd->GetLatestMutableCFOptions(),
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kMaxSequenceNumber);
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mem->SetID(i);
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mem->Ref();
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new_mems.emplace_back(mem);
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memtable_ids.push_back(mem->GetID());
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for (size_t j = 0; j < num_keys_per_table; ++j) {
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std::string key(std::to_string(j + i * num_keys_per_table));
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std::string value("value" + key);
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ASSERT_OK(mem->Add(SequenceNumber(j + i * num_keys_per_table), kTypeValue,
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key, value, nullptr /* kv_prot_info */));
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}
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}
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autovector<MemTable*> to_delete;
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for (auto mem : new_mems) {
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mem->ConstructFragmentedRangeTombstones();
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cfd->imm()->Add(mem, &to_delete);
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}
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EventLogger event_logger(db_options_.info_log.get());
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SnapshotChecker* snapshot_checker = nullptr; // not relavant
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assert(memtable_ids.size() == num_mems);
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uint64_t smallest_memtable_id = memtable_ids.front();
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uint64_t flush_memtable_id = smallest_memtable_id + num_mems_to_flush - 1;
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FlushJob flush_job(
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dbname_, versions_->GetColumnFamilySet()->GetDefault(), db_options_,
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*cfd->GetLatestMutableCFOptions(), flush_memtable_id, env_options_,
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versions_.get(), &mutex_, &shutting_down_, {}, kMaxSequenceNumber,
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snapshot_checker, &job_context, nullptr, nullptr, nullptr, kNoCompression,
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db_options_.statistics.get(), &event_logger, true,
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true /* sync_output_directory */, true /* write_manifest */,
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Env::Priority::USER, nullptr /*IOTracer*/, empty_seqno_to_time_mapping_);
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HistogramData hist;
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FileMetaData file_meta;
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mutex_.Lock();
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flush_job.PickMemTable();
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ASSERT_OK(flush_job.Run(nullptr /* prep_tracker */, &file_meta));
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mutex_.Unlock();
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db_options_.statistics->histogramData(FLUSH_TIME, &hist);
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ASSERT_GT(hist.average, 0.0);
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ASSERT_EQ(std::to_string(0), file_meta.smallest.user_key().ToString());
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ASSERT_EQ("99", file_meta.largest.user_key().ToString());
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ASSERT_EQ(0, file_meta.fd.smallest_seqno);
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ASSERT_EQ(SequenceNumber(num_mems_to_flush * num_keys_per_table - 1),
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file_meta.fd.largest_seqno);
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ASSERT_EQ(kInvalidBlobFileNumber, file_meta.oldest_blob_file_number);
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for (auto m : to_delete) {
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delete m;
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}
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to_delete.clear();
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job_context.Clean();
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}
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TEST_F(FlushJobTest, FlushMemtablesMultipleColumnFamilies) {
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autovector<ColumnFamilyData*> all_cfds;
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for (auto cfd : *versions_->GetColumnFamilySet()) {
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all_cfds.push_back(cfd);
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}
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const std::vector<size_t> num_memtables = {2, 1, 3};
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assert(num_memtables.size() == column_family_names_.size());
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const size_t num_keys_per_memtable = 1000;
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JobContext job_context(0);
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std::vector<uint64_t> memtable_ids;
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std::vector<SequenceNumber> smallest_seqs;
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std::vector<SequenceNumber> largest_seqs;
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autovector<MemTable*> to_delete;
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SequenceNumber curr_seqno = 0;
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size_t k = 0;
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for (auto cfd : all_cfds) {
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smallest_seqs.push_back(curr_seqno);
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for (size_t i = 0; i != num_memtables[k]; ++i) {
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MemTable* mem = cfd->ConstructNewMemtable(
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*cfd->GetLatestMutableCFOptions(), kMaxSequenceNumber);
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mem->SetID(i);
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mem->Ref();
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for (size_t j = 0; j != num_keys_per_memtable; ++j) {
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std::string key(std::to_string(j + i * num_keys_per_memtable));
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std::string value("value" + key);
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ASSERT_OK(mem->Add(curr_seqno++, kTypeValue, key, value,
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nullptr /* kv_prot_info */));
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}
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mem->ConstructFragmentedRangeTombstones();
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cfd->imm()->Add(mem, &to_delete);
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}
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largest_seqs.push_back(curr_seqno - 1);
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memtable_ids.push_back(num_memtables[k++] - 1);
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}
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EventLogger event_logger(db_options_.info_log.get());
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SnapshotChecker* snapshot_checker = nullptr; // not relevant
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std::vector<std::unique_ptr<FlushJob>> flush_jobs;
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k = 0;
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for (auto cfd : all_cfds) {
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std::vector<SequenceNumber> snapshot_seqs;
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flush_jobs.emplace_back(new FlushJob(
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dbname_, cfd, db_options_, *cfd->GetLatestMutableCFOptions(),
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memtable_ids[k], env_options_, versions_.get(), &mutex_,
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&shutting_down_, snapshot_seqs, kMaxSequenceNumber, snapshot_checker,
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&job_context, nullptr, nullptr, nullptr, kNoCompression,
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db_options_.statistics.get(), &event_logger, true,
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false /* sync_output_directory */, false /* write_manifest */,
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Env::Priority::USER, nullptr /*IOTracer*/,
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empty_seqno_to_time_mapping_));
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k++;
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}
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HistogramData hist;
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std::vector<FileMetaData> file_metas;
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// Call reserve to avoid auto-resizing
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file_metas.reserve(flush_jobs.size());
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mutex_.Lock();
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for (auto& job : flush_jobs) {
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job->PickMemTable();
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}
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for (auto& job : flush_jobs) {
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FileMetaData meta;
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// Run will release and re-acquire mutex
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ASSERT_OK(job->Run(nullptr /**/, &meta));
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file_metas.emplace_back(meta);
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}
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autovector<FileMetaData*> file_meta_ptrs;
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for (auto& meta : file_metas) {
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file_meta_ptrs.push_back(&meta);
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}
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autovector<const autovector<MemTable*>*> mems_list;
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for (size_t i = 0; i != all_cfds.size(); ++i) {
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const auto& mems = flush_jobs[i]->GetMemTables();
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mems_list.push_back(&mems);
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}
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autovector<const MutableCFOptions*> mutable_cf_options_list;
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for (auto cfd : all_cfds) {
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mutable_cf_options_list.push_back(cfd->GetLatestMutableCFOptions());
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}
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autovector<std::list<std::unique_ptr<FlushJobInfo>>*>
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committed_flush_jobs_info;
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#ifndef ROCKSDB_LITE
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for (auto& job : flush_jobs) {
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committed_flush_jobs_info.push_back(job->GetCommittedFlushJobsInfo());
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}
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#endif //! ROCKSDB_LITE
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Status s = InstallMemtableAtomicFlushResults(
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nullptr /* imm_lists */, all_cfds, mutable_cf_options_list, mems_list,
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versions_.get(), nullptr /* prep_tracker */, &mutex_, file_meta_ptrs,
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committed_flush_jobs_info, &job_context.memtables_to_free,
|
|
nullptr /* db_directory */, nullptr /* log_buffer */);
|
|
ASSERT_OK(s);
|
|
|
|
mutex_.Unlock();
|
|
db_options_.statistics->histogramData(FLUSH_TIME, &hist);
|
|
ASSERT_GT(hist.average, 0.0);
|
|
k = 0;
|
|
for (const auto& file_meta : file_metas) {
|
|
ASSERT_EQ(std::to_string(0), file_meta.smallest.user_key().ToString());
|
|
ASSERT_EQ("999", file_meta.largest.user_key()
|
|
.ToString()); // max key by bytewise comparator
|
|
ASSERT_EQ(smallest_seqs[k], file_meta.fd.smallest_seqno);
|
|
ASSERT_EQ(largest_seqs[k], file_meta.fd.largest_seqno);
|
|
// Verify that imm is empty
|
|
ASSERT_EQ(std::numeric_limits<uint64_t>::max(),
|
|
all_cfds[k]->imm()->GetEarliestMemTableID());
|
|
ASSERT_EQ(0, all_cfds[k]->imm()->GetLatestMemTableID());
|
|
++k;
|
|
}
|
|
|
|
for (auto m : to_delete) {
|
|
delete m;
|
|
}
|
|
to_delete.clear();
|
|
job_context.Clean();
|
|
}
|
|
|
|
TEST_F(FlushJobTest, Snapshots) {
|
|
JobContext job_context(0);
|
|
auto cfd = versions_->GetColumnFamilySet()->GetDefault();
|
|
auto new_mem = cfd->ConstructNewMemtable(*cfd->GetLatestMutableCFOptions(),
|
|
kMaxSequenceNumber);
|
|
|
|
std::set<SequenceNumber> snapshots_set;
|
|
int keys = 10000;
|
|
int max_inserts_per_keys = 8;
|
|
|
|
Random rnd(301);
|
|
for (int i = 0; i < keys / 2; ++i) {
|
|
snapshots_set.insert(rnd.Uniform(keys * (max_inserts_per_keys / 2)) + 1);
|
|
}
|
|
// set has already removed the duplicate snapshots
|
|
std::vector<SequenceNumber> snapshots(snapshots_set.begin(),
|
|
snapshots_set.end());
|
|
|
|
new_mem->Ref();
|
|
SequenceNumber current_seqno = 0;
|
|
auto inserted_keys = mock::MakeMockFile();
|
|
for (int i = 1; i < keys; ++i) {
|
|
std::string key(std::to_string(i));
|
|
int insertions = rnd.Uniform(max_inserts_per_keys);
|
|
for (int j = 0; j < insertions; ++j) {
|
|
std::string value(rnd.HumanReadableString(10));
|
|
auto seqno = ++current_seqno;
|
|
ASSERT_OK(new_mem->Add(SequenceNumber(seqno), kTypeValue, key, value,
|
|
nullptr /* kv_prot_info */));
|
|
// a key is visible only if:
|
|
// 1. it's the last one written (j == insertions - 1)
|
|
// 2. there's a snapshot pointing at it
|
|
bool visible = (j == insertions - 1) ||
|
|
(snapshots_set.find(seqno) != snapshots_set.end());
|
|
if (visible) {
|
|
InternalKey internal_key(key, seqno, kTypeValue);
|
|
inserted_keys.push_back({internal_key.Encode().ToString(), value});
|
|
}
|
|
}
|
|
}
|
|
mock::SortKVVector(&inserted_keys);
|
|
|
|
autovector<MemTable*> to_delete;
|
|
new_mem->ConstructFragmentedRangeTombstones();
|
|
cfd->imm()->Add(new_mem, &to_delete);
|
|
for (auto& m : to_delete) {
|
|
delete m;
|
|
}
|
|
|
|
EventLogger event_logger(db_options_.info_log.get());
|
|
SnapshotChecker* snapshot_checker = nullptr; // not relavant
|
|
FlushJob flush_job(
|
|
dbname_, versions_->GetColumnFamilySet()->GetDefault(), db_options_,
|
|
*cfd->GetLatestMutableCFOptions(),
|
|
std::numeric_limits<uint64_t>::max() /* memtable_id */, env_options_,
|
|
versions_.get(), &mutex_, &shutting_down_, snapshots, kMaxSequenceNumber,
|
|
snapshot_checker, &job_context, nullptr, nullptr, nullptr, kNoCompression,
|
|
db_options_.statistics.get(), &event_logger, true,
|
|
true /* sync_output_directory */, true /* write_manifest */,
|
|
Env::Priority::USER, nullptr /*IOTracer*/, empty_seqno_to_time_mapping_);
|
|
mutex_.Lock();
|
|
flush_job.PickMemTable();
|
|
ASSERT_OK(flush_job.Run());
|
|
mutex_.Unlock();
|
|
mock_table_factory_->AssertSingleFile(inserted_keys);
|
|
HistogramData hist;
|
|
db_options_.statistics->histogramData(FLUSH_TIME, &hist);
|
|
ASSERT_GT(hist.average, 0.0);
|
|
job_context.Clean();
|
|
}
|
|
|
|
TEST_F(FlushJobTest, GetRateLimiterPriorityForWrite) {
|
|
// Prepare a FlushJob that flush MemTables of Single Column Family.
|
|
const size_t num_mems = 2;
|
|
const size_t num_mems_to_flush = 1;
|
|
const size_t num_keys_per_table = 100;
|
|
JobContext job_context(0);
|
|
ColumnFamilyData* cfd = versions_->GetColumnFamilySet()->GetDefault();
|
|
std::vector<uint64_t> memtable_ids;
|
|
std::vector<MemTable*> new_mems;
|
|
for (size_t i = 0; i != num_mems; ++i) {
|
|
MemTable* mem = cfd->ConstructNewMemtable(*cfd->GetLatestMutableCFOptions(),
|
|
kMaxSequenceNumber);
|
|
mem->SetID(i);
|
|
mem->Ref();
|
|
new_mems.emplace_back(mem);
|
|
memtable_ids.push_back(mem->GetID());
|
|
|
|
for (size_t j = 0; j < num_keys_per_table; ++j) {
|
|
std::string key(std::to_string(j + i * num_keys_per_table));
|
|
std::string value("value" + key);
|
|
ASSERT_OK(mem->Add(SequenceNumber(j + i * num_keys_per_table), kTypeValue,
|
|
key, value, nullptr /* kv_prot_info */));
|
|
}
|
|
}
|
|
|
|
autovector<MemTable*> to_delete;
|
|
for (auto mem : new_mems) {
|
|
mem->ConstructFragmentedRangeTombstones();
|
|
cfd->imm()->Add(mem, &to_delete);
|
|
}
|
|
|
|
EventLogger event_logger(db_options_.info_log.get());
|
|
SnapshotChecker* snapshot_checker = nullptr; // not relavant
|
|
|
|
assert(memtable_ids.size() == num_mems);
|
|
uint64_t smallest_memtable_id = memtable_ids.front();
|
|
uint64_t flush_memtable_id = smallest_memtable_id + num_mems_to_flush - 1;
|
|
FlushJob flush_job(
|
|
dbname_, versions_->GetColumnFamilySet()->GetDefault(), db_options_,
|
|
*cfd->GetLatestMutableCFOptions(), flush_memtable_id, env_options_,
|
|
versions_.get(), &mutex_, &shutting_down_, {}, kMaxSequenceNumber,
|
|
snapshot_checker, &job_context, nullptr, nullptr, nullptr, kNoCompression,
|
|
db_options_.statistics.get(), &event_logger, true,
|
|
true /* sync_output_directory */, true /* write_manifest */,
|
|
Env::Priority::USER, nullptr /*IOTracer*/, empty_seqno_to_time_mapping_);
|
|
|
|
// When the state from WriteController is normal.
|
|
ASSERT_EQ(flush_job.GetRateLimiterPriorityForWrite(), Env::IO_HIGH);
|
|
|
|
WriteController* write_controller =
|
|
flush_job.versions_->GetColumnFamilySet()->write_controller();
|
|
|
|
{
|
|
// When the state from WriteController is Delayed.
|
|
std::unique_ptr<WriteControllerToken> delay_token =
|
|
write_controller->GetDelayToken(1000000);
|
|
ASSERT_EQ(flush_job.GetRateLimiterPriorityForWrite(), Env::IO_USER);
|
|
}
|
|
|
|
{
|
|
// When the state from WriteController is Stopped.
|
|
std::unique_ptr<WriteControllerToken> stop_token =
|
|
write_controller->GetStopToken();
|
|
ASSERT_EQ(flush_job.GetRateLimiterPriorityForWrite(), Env::IO_USER);
|
|
}
|
|
}
|
|
|
|
class FlushJobTimestampTest : public FlushJobTestBase {
|
|
public:
|
|
FlushJobTimestampTest()
|
|
: FlushJobTestBase(test::PerThreadDBPath("flush_job_ts_gc_test"),
|
|
test::BytewiseComparatorWithU64TsWrapper()) {}
|
|
|
|
void AddKeyValueToMemtable(MemTable* memtable, std::string key, uint64_t ts,
|
|
SequenceNumber seq, ValueType value_type,
|
|
Slice value) {
|
|
std::string key_str(std::move(key));
|
|
PutFixed64(&key_str, ts);
|
|
ASSERT_OK(memtable->Add(seq, value_type, key_str, value,
|
|
nullptr /* kv_prot_info */));
|
|
}
|
|
|
|
protected:
|
|
static constexpr uint64_t kStartTs = 10;
|
|
static constexpr SequenceNumber kStartSeq = 0;
|
|
SequenceNumber curr_seq_{kStartSeq};
|
|
std::atomic<uint64_t> curr_ts_{kStartTs};
|
|
};
|
|
|
|
TEST_F(FlushJobTimestampTest, AllKeysExpired) {
|
|
ColumnFamilyData* cfd = versions_->GetColumnFamilySet()->GetDefault();
|
|
autovector<MemTable*> to_delete;
|
|
|
|
{
|
|
MemTable* new_mem = cfd->ConstructNewMemtable(
|
|
*cfd->GetLatestMutableCFOptions(), kMaxSequenceNumber);
|
|
new_mem->Ref();
|
|
for (int i = 0; i < 100; ++i) {
|
|
uint64_t ts = curr_ts_.fetch_add(1);
|
|
SequenceNumber seq = (curr_seq_++);
|
|
AddKeyValueToMemtable(new_mem, test::EncodeInt(0), ts, seq,
|
|
ValueType::kTypeValue, "0_value");
|
|
}
|
|
uint64_t ts = curr_ts_.fetch_add(1);
|
|
SequenceNumber seq = (curr_seq_++);
|
|
AddKeyValueToMemtable(new_mem, test::EncodeInt(0), ts, seq,
|
|
ValueType::kTypeDeletionWithTimestamp, "");
|
|
new_mem->ConstructFragmentedRangeTombstones();
|
|
cfd->imm()->Add(new_mem, &to_delete);
|
|
}
|
|
|
|
std::vector<SequenceNumber> snapshots;
|
|
constexpr SnapshotChecker* const snapshot_checker = nullptr;
|
|
JobContext job_context(0);
|
|
EventLogger event_logger(db_options_.info_log.get());
|
|
std::string full_history_ts_low;
|
|
PutFixed64(&full_history_ts_low, std::numeric_limits<uint64_t>::max());
|
|
FlushJob flush_job(
|
|
dbname_, cfd, db_options_, *cfd->GetLatestMutableCFOptions(),
|
|
std::numeric_limits<uint64_t>::max() /* memtable_id */, env_options_,
|
|
versions_.get(), &mutex_, &shutting_down_, snapshots, kMaxSequenceNumber,
|
|
snapshot_checker, &job_context, nullptr, nullptr, nullptr, kNoCompression,
|
|
db_options_.statistics.get(), &event_logger, true,
|
|
true /* sync_output_directory */, true /* write_manifest */,
|
|
Env::Priority::USER, nullptr /*IOTracer*/, empty_seqno_to_time_mapping_,
|
|
/*db_id=*/"",
|
|
/*db_session_id=*/"", full_history_ts_low);
|
|
|
|
FileMetaData fmeta;
|
|
mutex_.Lock();
|
|
flush_job.PickMemTable();
|
|
ASSERT_OK(flush_job.Run(/*prep_tracker=*/nullptr, &fmeta));
|
|
mutex_.Unlock();
|
|
|
|
{
|
|
std::string key = test::EncodeInt(0);
|
|
key.append(test::EncodeInt(curr_ts_.load(std::memory_order_relaxed) - 1));
|
|
InternalKey ikey(key, curr_seq_ - 1, ValueType::kTypeDeletionWithTimestamp);
|
|
ASSERT_EQ(ikey.Encode(), fmeta.smallest.Encode());
|
|
ASSERT_EQ(ikey.Encode(), fmeta.largest.Encode());
|
|
}
|
|
|
|
job_context.Clean();
|
|
ASSERT_TRUE(to_delete.empty());
|
|
}
|
|
|
|
TEST_F(FlushJobTimestampTest, NoKeyExpired) {
|
|
ColumnFamilyData* cfd = versions_->GetColumnFamilySet()->GetDefault();
|
|
autovector<MemTable*> to_delete;
|
|
|
|
{
|
|
MemTable* new_mem = cfd->ConstructNewMemtable(
|
|
*cfd->GetLatestMutableCFOptions(), kMaxSequenceNumber);
|
|
new_mem->Ref();
|
|
for (int i = 0; i < 100; ++i) {
|
|
uint64_t ts = curr_ts_.fetch_add(1);
|
|
SequenceNumber seq = (curr_seq_++);
|
|
AddKeyValueToMemtable(new_mem, test::EncodeInt(0), ts, seq,
|
|
ValueType::kTypeValue, "0_value");
|
|
}
|
|
new_mem->ConstructFragmentedRangeTombstones();
|
|
cfd->imm()->Add(new_mem, &to_delete);
|
|
}
|
|
|
|
std::vector<SequenceNumber> snapshots;
|
|
SnapshotChecker* const snapshot_checker = nullptr;
|
|
JobContext job_context(0);
|
|
EventLogger event_logger(db_options_.info_log.get());
|
|
std::string full_history_ts_low;
|
|
PutFixed64(&full_history_ts_low, 0);
|
|
FlushJob flush_job(
|
|
dbname_, cfd, db_options_, *cfd->GetLatestMutableCFOptions(),
|
|
std::numeric_limits<uint64_t>::max() /* memtable_id */, env_options_,
|
|
versions_.get(), &mutex_, &shutting_down_, snapshots, kMaxSequenceNumber,
|
|
snapshot_checker, &job_context, nullptr, nullptr, nullptr, kNoCompression,
|
|
db_options_.statistics.get(), &event_logger, true,
|
|
true /* sync_output_directory */, true /* write_manifest */,
|
|
Env::Priority::USER, nullptr /*IOTracer*/, empty_seqno_to_time_mapping_,
|
|
/*db_id=*/"",
|
|
/*db_session_id=*/"", full_history_ts_low);
|
|
|
|
FileMetaData fmeta;
|
|
mutex_.Lock();
|
|
flush_job.PickMemTable();
|
|
ASSERT_OK(flush_job.Run(/*prep_tracker=*/nullptr, &fmeta));
|
|
mutex_.Unlock();
|
|
|
|
{
|
|
std::string ukey = test::EncodeInt(0);
|
|
std::string smallest_key =
|
|
ukey + test::EncodeInt(curr_ts_.load(std::memory_order_relaxed) - 1);
|
|
std::string largest_key = ukey + test::EncodeInt(kStartTs);
|
|
InternalKey smallest(smallest_key, curr_seq_ - 1, ValueType::kTypeValue);
|
|
InternalKey largest(largest_key, kStartSeq, ValueType::kTypeValue);
|
|
ASSERT_EQ(smallest.Encode(), fmeta.smallest.Encode());
|
|
ASSERT_EQ(largest.Encode(), fmeta.largest.Encode());
|
|
}
|
|
job_context.Clean();
|
|
ASSERT_TRUE(to_delete.empty());
|
|
}
|
|
|
|
} // namespace ROCKSDB_NAMESPACE
|
|
|
|
int main(int argc, char** argv) {
|
|
::testing::InitGoogleTest(&argc, argv);
|
|
return RUN_ALL_TESTS();
|
|
}
|
|
|