fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph
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2401 lines
83 KiB
2401 lines
83 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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#ifndef ROCKSDB_LITE
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#include "utilities/blob_db/blob_db.h"
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#include <algorithm>
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#include <chrono>
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#include <cstdlib>
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#include <iomanip>
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#include <map>
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#include <memory>
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#include <sstream>
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#include <string>
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#include <vector>
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#include "db/blob/blob_index.h"
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#include "db/db_test_util.h"
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#include "env/composite_env_wrapper.h"
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#include "file/file_util.h"
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#include "file/sst_file_manager_impl.h"
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#include "port/port.h"
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#include "rocksdb/utilities/debug.h"
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#include "test_util/mock_time_env.h"
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#include "test_util/sync_point.h"
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#include "test_util/testharness.h"
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#include "util/random.h"
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#include "util/string_util.h"
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#include "utilities/blob_db/blob_db_impl.h"
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#include "utilities/fault_injection_env.h"
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namespace ROCKSDB_NAMESPACE {
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namespace blob_db {
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class BlobDBTest : public testing::Test {
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public:
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const int kMaxBlobSize = 1 << 14;
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struct BlobIndexVersion {
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BlobIndexVersion() = default;
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BlobIndexVersion(std::string _user_key, uint64_t _file_number,
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uint64_t _expiration, SequenceNumber _sequence,
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ValueType _type)
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: user_key(std::move(_user_key)),
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file_number(_file_number),
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expiration(_expiration),
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sequence(_sequence),
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type(_type) {}
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std::string user_key;
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uint64_t file_number = kInvalidBlobFileNumber;
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uint64_t expiration = kNoExpiration;
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SequenceNumber sequence = 0;
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ValueType type = kTypeValue;
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};
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BlobDBTest()
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: dbname_(test::PerThreadDBPath("blob_db_test")),
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blob_db_(nullptr) {
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mock_clock_ = std::make_shared<MockSystemClock>(SystemClock::Default());
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mock_env_.reset(new CompositeEnvWrapper(Env::Default(), mock_clock_));
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fault_injection_env_.reset(new FaultInjectionTestEnv(Env::Default()));
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Status s = DestroyBlobDB(dbname_, Options(), BlobDBOptions());
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assert(s.ok());
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}
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~BlobDBTest() override {
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SyncPoint::GetInstance()->ClearAllCallBacks();
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Destroy();
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}
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Status TryOpen(BlobDBOptions bdb_options = BlobDBOptions(),
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Options options = Options()) {
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options.create_if_missing = true;
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if (options.env == mock_env_.get()) {
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// Need to disable stats dumping and persisting which also use
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// RepeatableThread, which uses InstrumentedCondVar::TimedWaitInternal.
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// With mocked time, this can hang on some platforms (MacOS)
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// because (a) on some platforms, pthread_cond_timedwait does not appear
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// to release the lock for other threads to operate if the deadline time
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// is already passed, and (b) TimedWait calls are currently a bad
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// abstraction because the deadline parameter is usually computed from
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// Env time, but is interpreted in real clock time.
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options.stats_dump_period_sec = 0;
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options.stats_persist_period_sec = 0;
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}
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return BlobDB::Open(options, bdb_options, dbname_, &blob_db_);
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}
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void Open(BlobDBOptions bdb_options = BlobDBOptions(),
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Options options = Options()) {
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ASSERT_OK(TryOpen(bdb_options, options));
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}
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void Reopen(BlobDBOptions bdb_options = BlobDBOptions(),
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Options options = Options()) {
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assert(blob_db_ != nullptr);
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delete blob_db_;
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blob_db_ = nullptr;
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Open(bdb_options, options);
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}
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void Close() {
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assert(blob_db_ != nullptr);
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delete blob_db_;
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blob_db_ = nullptr;
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}
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void Destroy() {
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if (blob_db_) {
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Options options = blob_db_->GetOptions();
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BlobDBOptions bdb_options = blob_db_->GetBlobDBOptions();
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delete blob_db_;
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blob_db_ = nullptr;
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ASSERT_OK(DestroyBlobDB(dbname_, options, bdb_options));
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}
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}
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BlobDBImpl *blob_db_impl() {
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return reinterpret_cast<BlobDBImpl *>(blob_db_);
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}
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Status Put(const Slice &key, const Slice &value,
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std::map<std::string, std::string> *data = nullptr) {
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Status s = blob_db_->Put(WriteOptions(), key, value);
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if (data != nullptr) {
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(*data)[key.ToString()] = value.ToString();
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}
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return s;
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}
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void Delete(const std::string &key,
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std::map<std::string, std::string> *data = nullptr) {
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ASSERT_OK(blob_db_->Delete(WriteOptions(), key));
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if (data != nullptr) {
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data->erase(key);
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}
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}
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Status PutWithTTL(const Slice &key, const Slice &value, uint64_t ttl,
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std::map<std::string, std::string> *data = nullptr) {
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Status s = blob_db_->PutWithTTL(WriteOptions(), key, value, ttl);
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if (data != nullptr) {
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(*data)[key.ToString()] = value.ToString();
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}
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return s;
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}
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Status PutUntil(const Slice &key, const Slice &value, uint64_t expiration) {
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return blob_db_->PutUntil(WriteOptions(), key, value, expiration);
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}
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void PutRandomWithTTL(const std::string &key, uint64_t ttl, Random *rnd,
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std::map<std::string, std::string> *data = nullptr) {
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int len = rnd->Next() % kMaxBlobSize + 1;
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std::string value = rnd->HumanReadableString(len);
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ASSERT_OK(
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blob_db_->PutWithTTL(WriteOptions(), Slice(key), Slice(value), ttl));
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if (data != nullptr) {
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(*data)[key] = value;
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}
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}
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void PutRandomUntil(const std::string &key, uint64_t expiration, Random *rnd,
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std::map<std::string, std::string> *data = nullptr) {
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int len = rnd->Next() % kMaxBlobSize + 1;
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std::string value = rnd->HumanReadableString(len);
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ASSERT_OK(blob_db_->PutUntil(WriteOptions(), Slice(key), Slice(value),
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expiration));
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if (data != nullptr) {
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(*data)[key] = value;
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}
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}
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void PutRandom(const std::string &key, Random *rnd,
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std::map<std::string, std::string> *data = nullptr) {
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PutRandom(blob_db_, key, rnd, data);
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}
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void PutRandom(DB *db, const std::string &key, Random *rnd,
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std::map<std::string, std::string> *data = nullptr) {
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int len = rnd->Next() % kMaxBlobSize + 1;
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std::string value = rnd->HumanReadableString(len);
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ASSERT_OK(db->Put(WriteOptions(), Slice(key), Slice(value)));
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if (data != nullptr) {
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(*data)[key] = value;
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}
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}
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void PutRandomToWriteBatch(
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const std::string &key, Random *rnd, WriteBatch *batch,
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std::map<std::string, std::string> *data = nullptr) {
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int len = rnd->Next() % kMaxBlobSize + 1;
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std::string value = rnd->HumanReadableString(len);
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ASSERT_OK(batch->Put(key, value));
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if (data != nullptr) {
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(*data)[key] = value;
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}
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}
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// Verify blob db contain expected data and nothing more.
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void VerifyDB(const std::map<std::string, std::string> &data) {
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VerifyDB(blob_db_, data);
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}
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void VerifyDB(DB *db, const std::map<std::string, std::string> &data) {
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// Verify normal Get
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auto* cfh = db->DefaultColumnFamily();
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for (auto &p : data) {
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PinnableSlice value_slice;
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ASSERT_OK(db->Get(ReadOptions(), cfh, p.first, &value_slice));
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ASSERT_EQ(p.second, value_slice.ToString());
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std::string value;
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ASSERT_OK(db->Get(ReadOptions(), cfh, p.first, &value));
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ASSERT_EQ(p.second, value);
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}
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// Verify iterators
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Iterator *iter = db->NewIterator(ReadOptions());
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iter->SeekToFirst();
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for (auto &p : data) {
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ASSERT_TRUE(iter->Valid());
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ASSERT_EQ(p.first, iter->key().ToString());
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ASSERT_EQ(p.second, iter->value().ToString());
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iter->Next();
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}
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ASSERT_FALSE(iter->Valid());
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ASSERT_OK(iter->status());
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delete iter;
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}
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void VerifyBaseDB(
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const std::map<std::string, KeyVersion> &expected_versions) {
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auto *bdb_impl = static_cast<BlobDBImpl *>(blob_db_);
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DB *db = blob_db_->GetRootDB();
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const size_t kMaxKeys = 10000;
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std::vector<KeyVersion> versions;
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ASSERT_OK(GetAllKeyVersions(db, "", "", kMaxKeys, &versions));
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ASSERT_EQ(expected_versions.size(), versions.size());
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size_t i = 0;
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for (auto &key_version : expected_versions) {
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const KeyVersion &expected_version = key_version.second;
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ASSERT_EQ(expected_version.user_key, versions[i].user_key);
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ASSERT_EQ(expected_version.sequence, versions[i].sequence);
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ASSERT_EQ(expected_version.type, versions[i].type);
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if (versions[i].type == kTypeValue) {
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ASSERT_EQ(expected_version.value, versions[i].value);
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} else {
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ASSERT_EQ(kTypeBlobIndex, versions[i].type);
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PinnableSlice value;
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ASSERT_OK(bdb_impl->TEST_GetBlobValue(versions[i].user_key,
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versions[i].value, &value));
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ASSERT_EQ(expected_version.value, value.ToString());
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}
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i++;
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}
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}
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void VerifyBaseDBBlobIndex(
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const std::map<std::string, BlobIndexVersion> &expected_versions) {
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const size_t kMaxKeys = 10000;
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std::vector<KeyVersion> versions;
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ASSERT_OK(
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GetAllKeyVersions(blob_db_->GetRootDB(), "", "", kMaxKeys, &versions));
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ASSERT_EQ(versions.size(), expected_versions.size());
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size_t i = 0;
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for (const auto &expected_pair : expected_versions) {
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const BlobIndexVersion &expected_version = expected_pair.second;
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ASSERT_EQ(versions[i].user_key, expected_version.user_key);
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ASSERT_EQ(versions[i].sequence, expected_version.sequence);
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ASSERT_EQ(versions[i].type, expected_version.type);
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if (versions[i].type != kTypeBlobIndex) {
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ASSERT_EQ(kInvalidBlobFileNumber, expected_version.file_number);
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ASSERT_EQ(kNoExpiration, expected_version.expiration);
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++i;
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continue;
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}
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BlobIndex blob_index;
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ASSERT_OK(blob_index.DecodeFrom(versions[i].value));
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const uint64_t file_number = !blob_index.IsInlined()
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? blob_index.file_number()
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: kInvalidBlobFileNumber;
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ASSERT_EQ(file_number, expected_version.file_number);
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const uint64_t expiration =
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blob_index.HasTTL() ? blob_index.expiration() : kNoExpiration;
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ASSERT_EQ(expiration, expected_version.expiration);
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++i;
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}
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}
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void InsertBlobs() {
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WriteOptions wo;
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std::string value;
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Random rnd(301);
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for (size_t i = 0; i < 100000; i++) {
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uint64_t ttl = rnd.Next() % 86400;
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PutRandomWithTTL("key" + ToString(i % 500), ttl, &rnd, nullptr);
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}
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for (size_t i = 0; i < 10; i++) {
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Delete("key" + ToString(i % 500));
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}
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}
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const std::string dbname_;
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std::shared_ptr<MockSystemClock> mock_clock_;
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std::unique_ptr<Env> mock_env_;
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std::unique_ptr<FaultInjectionTestEnv> fault_injection_env_;
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BlobDB *blob_db_;
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}; // class BlobDBTest
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TEST_F(BlobDBTest, Put) {
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Random rnd(301);
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BlobDBOptions bdb_options;
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bdb_options.min_blob_size = 0;
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bdb_options.disable_background_tasks = true;
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Open(bdb_options);
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std::map<std::string, std::string> data;
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for (size_t i = 0; i < 100; i++) {
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PutRandom("key" + ToString(i), &rnd, &data);
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}
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VerifyDB(data);
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}
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TEST_F(BlobDBTest, PutWithTTL) {
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Random rnd(301);
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Options options;
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options.env = mock_env_.get();
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BlobDBOptions bdb_options;
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bdb_options.ttl_range_secs = 1000;
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bdb_options.min_blob_size = 0;
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bdb_options.blob_file_size = 256 * 1000 * 1000;
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bdb_options.disable_background_tasks = true;
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Open(bdb_options, options);
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std::map<std::string, std::string> data;
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mock_clock_->SetCurrentTime(50);
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for (size_t i = 0; i < 100; i++) {
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uint64_t ttl = rnd.Next() % 100;
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PutRandomWithTTL("key" + ToString(i), ttl, &rnd,
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(ttl <= 50 ? nullptr : &data));
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}
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mock_clock_->SetCurrentTime(100);
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auto *bdb_impl = static_cast<BlobDBImpl *>(blob_db_);
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auto blob_files = bdb_impl->TEST_GetBlobFiles();
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ASSERT_EQ(1, blob_files.size());
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ASSERT_TRUE(blob_files[0]->HasTTL());
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ASSERT_OK(bdb_impl->TEST_CloseBlobFile(blob_files[0]));
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VerifyDB(data);
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}
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TEST_F(BlobDBTest, PutUntil) {
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Random rnd(301);
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Options options;
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options.env = mock_env_.get();
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BlobDBOptions bdb_options;
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bdb_options.ttl_range_secs = 1000;
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bdb_options.min_blob_size = 0;
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bdb_options.blob_file_size = 256 * 1000 * 1000;
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bdb_options.disable_background_tasks = true;
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Open(bdb_options, options);
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std::map<std::string, std::string> data;
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mock_clock_->SetCurrentTime(50);
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for (size_t i = 0; i < 100; i++) {
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uint64_t expiration = rnd.Next() % 100 + 50;
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PutRandomUntil("key" + ToString(i), expiration, &rnd,
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(expiration <= 100 ? nullptr : &data));
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}
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mock_clock_->SetCurrentTime(100);
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auto *bdb_impl = static_cast<BlobDBImpl *>(blob_db_);
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auto blob_files = bdb_impl->TEST_GetBlobFiles();
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ASSERT_EQ(1, blob_files.size());
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ASSERT_TRUE(blob_files[0]->HasTTL());
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ASSERT_OK(bdb_impl->TEST_CloseBlobFile(blob_files[0]));
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VerifyDB(data);
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}
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TEST_F(BlobDBTest, StackableDBGet) {
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Random rnd(301);
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BlobDBOptions bdb_options;
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bdb_options.min_blob_size = 0;
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bdb_options.disable_background_tasks = true;
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Open(bdb_options);
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std::map<std::string, std::string> data;
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for (size_t i = 0; i < 100; i++) {
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PutRandom("key" + ToString(i), &rnd, &data);
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}
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for (size_t i = 0; i < 100; i++) {
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StackableDB *db = blob_db_;
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ColumnFamilyHandle *column_family = db->DefaultColumnFamily();
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std::string key = "key" + ToString(i);
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PinnableSlice pinnable_value;
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ASSERT_OK(db->Get(ReadOptions(), column_family, key, &pinnable_value));
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std::string string_value;
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ASSERT_OK(db->Get(ReadOptions(), column_family, key, &string_value));
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ASSERT_EQ(string_value, pinnable_value.ToString());
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ASSERT_EQ(string_value, data[key]);
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}
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}
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TEST_F(BlobDBTest, GetExpiration) {
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Options options;
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options.env = mock_env_.get();
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BlobDBOptions bdb_options;
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bdb_options.disable_background_tasks = true;
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mock_clock_->SetCurrentTime(100);
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Open(bdb_options, options);
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ASSERT_OK(Put("key1", "value1"));
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ASSERT_OK(PutWithTTL("key2", "value2", 200));
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PinnableSlice value;
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uint64_t expiration;
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ASSERT_OK(blob_db_->Get(ReadOptions(), "key1", &value, &expiration));
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ASSERT_EQ("value1", value.ToString());
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ASSERT_EQ(kNoExpiration, expiration);
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ASSERT_OK(blob_db_->Get(ReadOptions(), "key2", &value, &expiration));
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ASSERT_EQ("value2", value.ToString());
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ASSERT_EQ(300 /* = 100 + 200 */, expiration);
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}
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TEST_F(BlobDBTest, GetIOError) {
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Options options;
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options.env = fault_injection_env_.get();
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BlobDBOptions bdb_options;
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bdb_options.min_blob_size = 0; // Make sure value write to blob file
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bdb_options.disable_background_tasks = true;
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Open(bdb_options, options);
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ColumnFamilyHandle *column_family = blob_db_->DefaultColumnFamily();
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PinnableSlice value;
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ASSERT_OK(Put("foo", "bar"));
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fault_injection_env_->SetFilesystemActive(false, Status::IOError());
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Status s = blob_db_->Get(ReadOptions(), column_family, "foo", &value);
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ASSERT_TRUE(s.IsIOError());
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// Reactivate file system to allow test to close DB.
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fault_injection_env_->SetFilesystemActive(true);
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}
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TEST_F(BlobDBTest, PutIOError) {
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Options options;
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options.env = fault_injection_env_.get();
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BlobDBOptions bdb_options;
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bdb_options.min_blob_size = 0; // Make sure value write to blob file
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bdb_options.disable_background_tasks = true;
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Open(bdb_options, options);
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fault_injection_env_->SetFilesystemActive(false, Status::IOError());
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ASSERT_TRUE(Put("foo", "v1").IsIOError());
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fault_injection_env_->SetFilesystemActive(true, Status::IOError());
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ASSERT_OK(Put("bar", "v1"));
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}
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TEST_F(BlobDBTest, WriteBatch) {
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Random rnd(301);
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BlobDBOptions bdb_options;
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bdb_options.min_blob_size = 0;
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bdb_options.disable_background_tasks = true;
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|
Open(bdb_options);
|
|
std::map<std::string, std::string> data;
|
|
for (size_t i = 0; i < 100; i++) {
|
|
WriteBatch batch;
|
|
for (size_t j = 0; j < 10; j++) {
|
|
PutRandomToWriteBatch("key" + ToString(j * 100 + i), &rnd, &batch, &data);
|
|
}
|
|
|
|
ASSERT_OK(blob_db_->Write(WriteOptions(), &batch));
|
|
}
|
|
VerifyDB(data);
|
|
}
|
|
|
|
TEST_F(BlobDBTest, Delete) {
|
|
Random rnd(301);
|
|
BlobDBOptions bdb_options;
|
|
bdb_options.min_blob_size = 0;
|
|
bdb_options.disable_background_tasks = true;
|
|
Open(bdb_options);
|
|
std::map<std::string, std::string> data;
|
|
for (size_t i = 0; i < 100; i++) {
|
|
PutRandom("key" + ToString(i), &rnd, &data);
|
|
}
|
|
for (size_t i = 0; i < 100; i += 5) {
|
|
Delete("key" + ToString(i), &data);
|
|
}
|
|
VerifyDB(data);
|
|
}
|
|
|
|
TEST_F(BlobDBTest, DeleteBatch) {
|
|
Random rnd(301);
|
|
BlobDBOptions bdb_options;
|
|
bdb_options.min_blob_size = 0;
|
|
bdb_options.disable_background_tasks = true;
|
|
Open(bdb_options);
|
|
for (size_t i = 0; i < 100; i++) {
|
|
PutRandom("key" + ToString(i), &rnd);
|
|
}
|
|
WriteBatch batch;
|
|
for (size_t i = 0; i < 100; i++) {
|
|
ASSERT_OK(batch.Delete("key" + ToString(i)));
|
|
}
|
|
ASSERT_OK(blob_db_->Write(WriteOptions(), &batch));
|
|
// DB should be empty.
|
|
VerifyDB({});
|
|
}
|
|
|
|
TEST_F(BlobDBTest, Override) {
|
|
Random rnd(301);
|
|
BlobDBOptions bdb_options;
|
|
bdb_options.min_blob_size = 0;
|
|
bdb_options.disable_background_tasks = true;
|
|
Open(bdb_options);
|
|
std::map<std::string, std::string> data;
|
|
for (int i = 0; i < 10000; i++) {
|
|
PutRandom("key" + ToString(i), &rnd, nullptr);
|
|
}
|
|
// override all the keys
|
|
for (int i = 0; i < 10000; i++) {
|
|
PutRandom("key" + ToString(i), &rnd, &data);
|
|
}
|
|
VerifyDB(data);
|
|
}
|
|
|
|
#ifdef SNAPPY
|
|
TEST_F(BlobDBTest, Compression) {
|
|
Random rnd(301);
|
|
BlobDBOptions bdb_options;
|
|
bdb_options.min_blob_size = 0;
|
|
bdb_options.disable_background_tasks = true;
|
|
bdb_options.compression = CompressionType::kSnappyCompression;
|
|
Open(bdb_options);
|
|
std::map<std::string, std::string> data;
|
|
for (size_t i = 0; i < 100; i++) {
|
|
PutRandom("put-key" + ToString(i), &rnd, &data);
|
|
}
|
|
for (int i = 0; i < 100; i++) {
|
|
WriteBatch batch;
|
|
for (size_t j = 0; j < 10; j++) {
|
|
PutRandomToWriteBatch("write-batch-key" + ToString(j * 100 + i), &rnd,
|
|
&batch, &data);
|
|
}
|
|
ASSERT_OK(blob_db_->Write(WriteOptions(), &batch));
|
|
}
|
|
VerifyDB(data);
|
|
}
|
|
|
|
TEST_F(BlobDBTest, DecompressAfterReopen) {
|
|
Random rnd(301);
|
|
BlobDBOptions bdb_options;
|
|
bdb_options.min_blob_size = 0;
|
|
bdb_options.disable_background_tasks = true;
|
|
bdb_options.compression = CompressionType::kSnappyCompression;
|
|
Open(bdb_options);
|
|
std::map<std::string, std::string> data;
|
|
for (size_t i = 0; i < 100; i++) {
|
|
PutRandom("put-key" + ToString(i), &rnd, &data);
|
|
}
|
|
VerifyDB(data);
|
|
bdb_options.compression = CompressionType::kNoCompression;
|
|
Reopen(bdb_options);
|
|
VerifyDB(data);
|
|
}
|
|
|
|
TEST_F(BlobDBTest, EnableDisableCompressionGC) {
|
|
Random rnd(301);
|
|
BlobDBOptions bdb_options;
|
|
bdb_options.min_blob_size = 0;
|
|
bdb_options.garbage_collection_cutoff = 1.0;
|
|
bdb_options.disable_background_tasks = true;
|
|
bdb_options.compression = kSnappyCompression;
|
|
Open(bdb_options);
|
|
std::map<std::string, std::string> data;
|
|
size_t data_idx = 0;
|
|
for (; data_idx < 100; data_idx++) {
|
|
PutRandom("put-key" + ToString(data_idx), &rnd, &data);
|
|
}
|
|
VerifyDB(data);
|
|
auto blob_files = blob_db_impl()->TEST_GetBlobFiles();
|
|
ASSERT_EQ(1, blob_files.size());
|
|
ASSERT_EQ(kSnappyCompression, blob_files[0]->GetCompressionType());
|
|
|
|
// disable compression
|
|
bdb_options.compression = kNoCompression;
|
|
Reopen(bdb_options);
|
|
|
|
// Add more data with new compression type
|
|
for (; data_idx < 200; data_idx++) {
|
|
PutRandom("put-key" + ToString(data_idx), &rnd, &data);
|
|
}
|
|
VerifyDB(data);
|
|
|
|
blob_files = blob_db_impl()->TEST_GetBlobFiles();
|
|
ASSERT_EQ(2, blob_files.size());
|
|
ASSERT_EQ(kNoCompression, blob_files[1]->GetCompressionType());
|
|
|
|
// Enable GC. If we do it earlier the snapshot release triggered compaction
|
|
// may compact files and trigger GC before we can verify there are two files.
|
|
bdb_options.enable_garbage_collection = true;
|
|
Reopen(bdb_options);
|
|
|
|
// Trigger compaction
|
|
ASSERT_OK(blob_db_->CompactRange(CompactRangeOptions(), nullptr, nullptr));
|
|
blob_db_impl()->TEST_DeleteObsoleteFiles();
|
|
VerifyDB(data);
|
|
|
|
blob_files = blob_db_impl()->TEST_GetBlobFiles();
|
|
for (auto bfile : blob_files) {
|
|
ASSERT_EQ(kNoCompression, bfile->GetCompressionType());
|
|
}
|
|
|
|
// enabling the compression again
|
|
bdb_options.compression = kSnappyCompression;
|
|
Reopen(bdb_options);
|
|
|
|
// Add more data with new compression type
|
|
for (; data_idx < 300; data_idx++) {
|
|
PutRandom("put-key" + ToString(data_idx), &rnd, &data);
|
|
}
|
|
VerifyDB(data);
|
|
|
|
// Trigger compaction
|
|
ASSERT_OK(blob_db_->CompactRange(CompactRangeOptions(), nullptr, nullptr));
|
|
blob_db_impl()->TEST_DeleteObsoleteFiles();
|
|
VerifyDB(data);
|
|
|
|
blob_files = blob_db_impl()->TEST_GetBlobFiles();
|
|
for (auto bfile : blob_files) {
|
|
ASSERT_EQ(kSnappyCompression, bfile->GetCompressionType());
|
|
}
|
|
}
|
|
|
|
#ifdef LZ4
|
|
// Test switch compression types and run GC, it needs both Snappy and LZ4
|
|
// support.
|
|
TEST_F(BlobDBTest, ChangeCompressionGC) {
|
|
Random rnd(301);
|
|
BlobDBOptions bdb_options;
|
|
bdb_options.min_blob_size = 0;
|
|
bdb_options.garbage_collection_cutoff = 1.0;
|
|
bdb_options.disable_background_tasks = true;
|
|
bdb_options.compression = kLZ4Compression;
|
|
Open(bdb_options);
|
|
std::map<std::string, std::string> data;
|
|
size_t data_idx = 0;
|
|
for (; data_idx < 100; data_idx++) {
|
|
PutRandom("put-key" + ToString(data_idx), &rnd, &data);
|
|
}
|
|
VerifyDB(data);
|
|
auto blob_files = blob_db_impl()->TEST_GetBlobFiles();
|
|
ASSERT_EQ(1, blob_files.size());
|
|
ASSERT_EQ(kLZ4Compression, blob_files[0]->GetCompressionType());
|
|
|
|
// Change compression type
|
|
bdb_options.compression = kSnappyCompression;
|
|
Reopen(bdb_options);
|
|
|
|
// Add more data with Snappy compression type
|
|
for (; data_idx < 200; data_idx++) {
|
|
PutRandom("put-key" + ToString(data_idx), &rnd, &data);
|
|
}
|
|
VerifyDB(data);
|
|
|
|
// Verify blob file compression type
|
|
blob_files = blob_db_impl()->TEST_GetBlobFiles();
|
|
ASSERT_EQ(2, blob_files.size());
|
|
ASSERT_EQ(kSnappyCompression, blob_files[1]->GetCompressionType());
|
|
|
|
// Enable GC. If we do it earlier the snapshot release triggered compaction
|
|
// may compact files and trigger GC before we can verify there are two files.
|
|
bdb_options.enable_garbage_collection = true;
|
|
Reopen(bdb_options);
|
|
|
|
ASSERT_OK(blob_db_->CompactRange(CompactRangeOptions(), nullptr, nullptr));
|
|
VerifyDB(data);
|
|
|
|
blob_db_impl()->TEST_DeleteObsoleteFiles();
|
|
blob_files = blob_db_impl()->TEST_GetBlobFiles();
|
|
for (auto bfile : blob_files) {
|
|
ASSERT_EQ(kSnappyCompression, bfile->GetCompressionType());
|
|
}
|
|
|
|
// Disable compression
|
|
bdb_options.compression = kNoCompression;
|
|
Reopen(bdb_options);
|
|
for (; data_idx < 300; data_idx++) {
|
|
PutRandom("put-key" + ToString(data_idx), &rnd, &data);
|
|
}
|
|
VerifyDB(data);
|
|
|
|
ASSERT_OK(blob_db_->CompactRange(CompactRangeOptions(), nullptr, nullptr));
|
|
VerifyDB(data);
|
|
|
|
blob_db_impl()->TEST_DeleteObsoleteFiles();
|
|
blob_files = blob_db_impl()->TEST_GetBlobFiles();
|
|
for (auto bfile : blob_files) {
|
|
ASSERT_EQ(kNoCompression, bfile->GetCompressionType());
|
|
}
|
|
|
|
// switching different compression types to generate mixed compression types
|
|
bdb_options.compression = kSnappyCompression;
|
|
Reopen(bdb_options);
|
|
for (; data_idx < 400; data_idx++) {
|
|
PutRandom("put-key" + ToString(data_idx), &rnd, &data);
|
|
}
|
|
VerifyDB(data);
|
|
|
|
bdb_options.compression = kLZ4Compression;
|
|
Reopen(bdb_options);
|
|
for (; data_idx < 500; data_idx++) {
|
|
PutRandom("put-key" + ToString(data_idx), &rnd, &data);
|
|
}
|
|
VerifyDB(data);
|
|
|
|
ASSERT_OK(blob_db_->CompactRange(CompactRangeOptions(), nullptr, nullptr));
|
|
VerifyDB(data);
|
|
|
|
blob_db_impl()->TEST_DeleteObsoleteFiles();
|
|
blob_files = blob_db_impl()->TEST_GetBlobFiles();
|
|
for (auto bfile : blob_files) {
|
|
ASSERT_EQ(kLZ4Compression, bfile->GetCompressionType());
|
|
}
|
|
}
|
|
#endif // LZ4
|
|
#endif // SNAPPY
|
|
|
|
TEST_F(BlobDBTest, MultipleWriters) {
|
|
Open(BlobDBOptions());
|
|
|
|
std::vector<port::Thread> workers;
|
|
std::vector<std::map<std::string, std::string>> data_set(10);
|
|
for (uint32_t i = 0; i < 10; i++)
|
|
workers.push_back(port::Thread(
|
|
[&](uint32_t id) {
|
|
Random rnd(301 + id);
|
|
for (int j = 0; j < 100; j++) {
|
|
std::string key = "key" + ToString(id) + "_" + ToString(j);
|
|
if (id < 5) {
|
|
PutRandom(key, &rnd, &data_set[id]);
|
|
} else {
|
|
WriteBatch batch;
|
|
PutRandomToWriteBatch(key, &rnd, &batch, &data_set[id]);
|
|
ASSERT_OK(blob_db_->Write(WriteOptions(), &batch));
|
|
}
|
|
}
|
|
},
|
|
i));
|
|
std::map<std::string, std::string> data;
|
|
for (size_t i = 0; i < 10; i++) {
|
|
workers[i].join();
|
|
data.insert(data_set[i].begin(), data_set[i].end());
|
|
}
|
|
VerifyDB(data);
|
|
}
|
|
|
|
TEST_F(BlobDBTest, SstFileManager) {
|
|
// run the same test for Get(), MultiGet() and Iterator each.
|
|
std::shared_ptr<SstFileManager> sst_file_manager(
|
|
NewSstFileManager(mock_env_.get()));
|
|
sst_file_manager->SetDeleteRateBytesPerSecond(1);
|
|
SstFileManagerImpl *sfm =
|
|
static_cast<SstFileManagerImpl *>(sst_file_manager.get());
|
|
|
|
BlobDBOptions bdb_options;
|
|
bdb_options.min_blob_size = 0;
|
|
bdb_options.enable_garbage_collection = true;
|
|
bdb_options.garbage_collection_cutoff = 1.0;
|
|
Options db_options;
|
|
|
|
int files_scheduled_to_delete = 0;
|
|
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->SetCallBack(
|
|
"SstFileManagerImpl::ScheduleFileDeletion", [&](void *arg) {
|
|
assert(arg);
|
|
const std::string *const file_path =
|
|
static_cast<const std::string *>(arg);
|
|
if (file_path->find(".blob") != std::string::npos) {
|
|
++files_scheduled_to_delete;
|
|
}
|
|
});
|
|
SyncPoint::GetInstance()->EnableProcessing();
|
|
db_options.sst_file_manager = sst_file_manager;
|
|
|
|
Open(bdb_options, db_options);
|
|
|
|
// Create one obselete file and clean it.
|
|
ASSERT_OK(blob_db_->Put(WriteOptions(), "foo", "bar"));
|
|
auto blob_files = blob_db_impl()->TEST_GetBlobFiles();
|
|
ASSERT_EQ(1, blob_files.size());
|
|
std::shared_ptr<BlobFile> bfile = blob_files[0];
|
|
ASSERT_OK(blob_db_impl()->TEST_CloseBlobFile(bfile));
|
|
ASSERT_OK(blob_db_->CompactRange(CompactRangeOptions(), nullptr, nullptr));
|
|
blob_db_impl()->TEST_DeleteObsoleteFiles();
|
|
|
|
// Even if SSTFileManager is not set, DB is creating a dummy one.
|
|
ASSERT_EQ(1, files_scheduled_to_delete);
|
|
Destroy();
|
|
// Make sure that DestroyBlobDB() also goes through delete scheduler.
|
|
ASSERT_EQ(2, files_scheduled_to_delete);
|
|
SyncPoint::GetInstance()->DisableProcessing();
|
|
sfm->WaitForEmptyTrash();
|
|
}
|
|
|
|
TEST_F(BlobDBTest, SstFileManagerRestart) {
|
|
int files_scheduled_to_delete = 0;
|
|
ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->SetCallBack(
|
|
"SstFileManagerImpl::ScheduleFileDeletion", [&](void *arg) {
|
|
assert(arg);
|
|
const std::string *const file_path =
|
|
static_cast<const std::string *>(arg);
|
|
if (file_path->find(".blob") != std::string::npos) {
|
|
++files_scheduled_to_delete;
|
|
}
|
|
});
|
|
|
|
// run the same test for Get(), MultiGet() and Iterator each.
|
|
std::shared_ptr<SstFileManager> sst_file_manager(
|
|
NewSstFileManager(mock_env_.get()));
|
|
sst_file_manager->SetDeleteRateBytesPerSecond(1);
|
|
SstFileManagerImpl *sfm =
|
|
static_cast<SstFileManagerImpl *>(sst_file_manager.get());
|
|
|
|
BlobDBOptions bdb_options;
|
|
bdb_options.min_blob_size = 0;
|
|
Options db_options;
|
|
|
|
SyncPoint::GetInstance()->EnableProcessing();
|
|
db_options.sst_file_manager = sst_file_manager;
|
|
|
|
Open(bdb_options, db_options);
|
|
std::string blob_dir = blob_db_impl()->TEST_blob_dir();
|
|
ASSERT_OK(blob_db_->Put(WriteOptions(), "foo", "bar"));
|
|
Close();
|
|
|
|
// Create 3 dummy trash files under the blob_dir
|
|
const auto &fs = db_options.env->GetFileSystem();
|
|
ASSERT_OK(CreateFile(fs, blob_dir + "/000666.blob.trash", "", false));
|
|
ASSERT_OK(CreateFile(fs, blob_dir + "/000888.blob.trash", "", true));
|
|
ASSERT_OK(CreateFile(fs, blob_dir + "/something_not_match.trash", "", false));
|
|
|
|
// Make sure that reopening the DB rescan the existing trash files
|
|
Open(bdb_options, db_options);
|
|
ASSERT_EQ(files_scheduled_to_delete, 2);
|
|
|
|
sfm->WaitForEmptyTrash();
|
|
|
|
// There should be exact one file under the blob dir now.
|
|
std::vector<std::string> all_files;
|
|
ASSERT_OK(db_options.env->GetChildren(blob_dir, &all_files));
|
|
int nfiles = 0;
|
|
for (const auto &f : all_files) {
|
|
assert(!f.empty());
|
|
if (f[0] == '.') {
|
|
continue;
|
|
}
|
|
nfiles++;
|
|
}
|
|
ASSERT_EQ(nfiles, 1);
|
|
|
|
SyncPoint::GetInstance()->DisableProcessing();
|
|
}
|
|
|
|
TEST_F(BlobDBTest, SnapshotAndGarbageCollection) {
|
|
BlobDBOptions bdb_options;
|
|
bdb_options.min_blob_size = 0;
|
|
bdb_options.enable_garbage_collection = true;
|
|
bdb_options.garbage_collection_cutoff = 1.0;
|
|
bdb_options.disable_background_tasks = true;
|
|
|
|
Options options;
|
|
options.disable_auto_compactions = true;
|
|
|
|
// i = when to take snapshot
|
|
for (int i = 0; i < 4; i++) {
|
|
Destroy();
|
|
Open(bdb_options, options);
|
|
|
|
const Snapshot *snapshot = nullptr;
|
|
|
|
// First file
|
|
ASSERT_OK(Put("key1", "value"));
|
|
if (i == 0) {
|
|
snapshot = blob_db_->GetSnapshot();
|
|
}
|
|
|
|
auto blob_files = blob_db_impl()->TEST_GetBlobFiles();
|
|
ASSERT_EQ(1, blob_files.size());
|
|
ASSERT_OK(blob_db_impl()->TEST_CloseBlobFile(blob_files[0]));
|
|
|
|
// Second file
|
|
ASSERT_OK(Put("key2", "value"));
|
|
if (i == 1) {
|
|
snapshot = blob_db_->GetSnapshot();
|
|
}
|
|
|
|
blob_files = blob_db_impl()->TEST_GetBlobFiles();
|
|
ASSERT_EQ(2, blob_files.size());
|
|
auto bfile = blob_files[1];
|
|
ASSERT_FALSE(bfile->Immutable());
|
|
ASSERT_OK(blob_db_impl()->TEST_CloseBlobFile(bfile));
|
|
|
|
// Third file
|
|
ASSERT_OK(Put("key3", "value"));
|
|
if (i == 2) {
|
|
snapshot = blob_db_->GetSnapshot();
|
|
}
|
|
|
|
ASSERT_OK(blob_db_->CompactRange(CompactRangeOptions(), nullptr, nullptr));
|
|
ASSERT_TRUE(bfile->Obsolete());
|
|
ASSERT_EQ(blob_db_->GetLatestSequenceNumber(),
|
|
bfile->GetObsoleteSequence());
|
|
|
|
Delete("key2");
|
|
if (i == 3) {
|
|
snapshot = blob_db_->GetSnapshot();
|
|
}
|
|
|
|
ASSERT_EQ(4, blob_db_impl()->TEST_GetBlobFiles().size());
|
|
blob_db_impl()->TEST_DeleteObsoleteFiles();
|
|
|
|
if (i >= 2) {
|
|
// The snapshot shouldn't see data in bfile
|
|
ASSERT_EQ(2, blob_db_impl()->TEST_GetBlobFiles().size());
|
|
blob_db_->ReleaseSnapshot(snapshot);
|
|
} else {
|
|
// The snapshot will see data in bfile, so the file shouldn't be deleted
|
|
ASSERT_EQ(4, blob_db_impl()->TEST_GetBlobFiles().size());
|
|
blob_db_->ReleaseSnapshot(snapshot);
|
|
blob_db_impl()->TEST_DeleteObsoleteFiles();
|
|
ASSERT_EQ(2, blob_db_impl()->TEST_GetBlobFiles().size());
|
|
}
|
|
}
|
|
}
|
|
|
|
TEST_F(BlobDBTest, ColumnFamilyNotSupported) {
|
|
Options options;
|
|
options.env = mock_env_.get();
|
|
mock_clock_->SetCurrentTime(0);
|
|
Open(BlobDBOptions(), options);
|
|
ColumnFamilyHandle *default_handle = blob_db_->DefaultColumnFamily();
|
|
ColumnFamilyHandle *handle = nullptr;
|
|
std::string value;
|
|
std::vector<std::string> values;
|
|
// The call simply pass through to base db. It should succeed.
|
|
ASSERT_OK(
|
|
blob_db_->CreateColumnFamily(ColumnFamilyOptions(), "foo", &handle));
|
|
ASSERT_TRUE(blob_db_->Put(WriteOptions(), handle, "k", "v").IsNotSupported());
|
|
ASSERT_TRUE(blob_db_->PutWithTTL(WriteOptions(), handle, "k", "v", 60)
|
|
.IsNotSupported());
|
|
ASSERT_TRUE(blob_db_->PutUntil(WriteOptions(), handle, "k", "v", 100)
|
|
.IsNotSupported());
|
|
WriteBatch batch;
|
|
ASSERT_OK(batch.Put("k1", "v1"));
|
|
ASSERT_OK(batch.Put(handle, "k2", "v2"));
|
|
ASSERT_TRUE(blob_db_->Write(WriteOptions(), &batch).IsNotSupported());
|
|
ASSERT_TRUE(blob_db_->Get(ReadOptions(), "k1", &value).IsNotFound());
|
|
ASSERT_TRUE(
|
|
blob_db_->Get(ReadOptions(), handle, "k", &value).IsNotSupported());
|
|
auto statuses = blob_db_->MultiGet(ReadOptions(), {default_handle, handle},
|
|
{"k1", "k2"}, &values);
|
|
ASSERT_EQ(2, statuses.size());
|
|
ASSERT_TRUE(statuses[0].IsNotSupported());
|
|
ASSERT_TRUE(statuses[1].IsNotSupported());
|
|
ASSERT_EQ(nullptr, blob_db_->NewIterator(ReadOptions(), handle));
|
|
delete handle;
|
|
}
|
|
|
|
TEST_F(BlobDBTest, GetLiveFilesMetaData) {
|
|
Random rnd(301);
|
|
|
|
BlobDBOptions bdb_options;
|
|
bdb_options.blob_dir = "blob_dir";
|
|
bdb_options.path_relative = true;
|
|
bdb_options.ttl_range_secs = 10;
|
|
bdb_options.min_blob_size = 0;
|
|
bdb_options.disable_background_tasks = true;
|
|
|
|
Options options;
|
|
options.env = mock_env_.get();
|
|
|
|
Open(bdb_options, options);
|
|
|
|
std::map<std::string, std::string> data;
|
|
for (size_t i = 0; i < 100; i++) {
|
|
PutRandom("key" + ToString(i), &rnd, &data);
|
|
}
|
|
|
|
constexpr uint64_t expiration = 1000ULL;
|
|
PutRandomUntil("key100", expiration, &rnd, &data);
|
|
|
|
std::vector<LiveFileMetaData> metadata;
|
|
blob_db_->GetLiveFilesMetaData(&metadata);
|
|
|
|
ASSERT_EQ(2U, metadata.size());
|
|
// Path should be relative to db_name, but begin with slash.
|
|
const std::string filename1("/blob_dir/000001.blob");
|
|
ASSERT_EQ(filename1, metadata[0].name);
|
|
ASSERT_EQ(1, metadata[0].file_number);
|
|
ASSERT_EQ(0, metadata[0].oldest_ancester_time);
|
|
ASSERT_EQ(kDefaultColumnFamilyName, metadata[0].column_family_name);
|
|
|
|
const std::string filename2("/blob_dir/000002.blob");
|
|
ASSERT_EQ(filename2, metadata[1].name);
|
|
ASSERT_EQ(2, metadata[1].file_number);
|
|
ASSERT_EQ(expiration, metadata[1].oldest_ancester_time);
|
|
ASSERT_EQ(kDefaultColumnFamilyName, metadata[1].column_family_name);
|
|
|
|
std::vector<std::string> livefile;
|
|
uint64_t mfs;
|
|
ASSERT_OK(blob_db_->GetLiveFiles(livefile, &mfs, false));
|
|
ASSERT_EQ(5U, livefile.size());
|
|
ASSERT_EQ(filename1, livefile[3]);
|
|
ASSERT_EQ(filename2, livefile[4]);
|
|
VerifyDB(data);
|
|
}
|
|
|
|
TEST_F(BlobDBTest, MigrateFromPlainRocksDB) {
|
|
constexpr size_t kNumKey = 20;
|
|
constexpr size_t kNumIteration = 10;
|
|
Random rnd(301);
|
|
std::map<std::string, std::string> data;
|
|
std::vector<bool> is_blob(kNumKey, false);
|
|
|
|
// Write to plain rocksdb.
|
|
Options options;
|
|
options.create_if_missing = true;
|
|
DB *db = nullptr;
|
|
ASSERT_OK(DB::Open(options, dbname_, &db));
|
|
for (size_t i = 0; i < kNumIteration; i++) {
|
|
auto key_index = rnd.Next() % kNumKey;
|
|
std::string key = "key" + ToString(key_index);
|
|
PutRandom(db, key, &rnd, &data);
|
|
}
|
|
VerifyDB(db, data);
|
|
delete db;
|
|
db = nullptr;
|
|
|
|
// Open as blob db. Verify it can read existing data.
|
|
Open();
|
|
VerifyDB(blob_db_, data);
|
|
for (size_t i = 0; i < kNumIteration; i++) {
|
|
auto key_index = rnd.Next() % kNumKey;
|
|
std::string key = "key" + ToString(key_index);
|
|
is_blob[key_index] = true;
|
|
PutRandom(blob_db_, key, &rnd, &data);
|
|
}
|
|
VerifyDB(blob_db_, data);
|
|
delete blob_db_;
|
|
blob_db_ = nullptr;
|
|
|
|
// Verify plain db return error for keys written by blob db.
|
|
ASSERT_OK(DB::Open(options, dbname_, &db));
|
|
std::string value;
|
|
for (size_t i = 0; i < kNumKey; i++) {
|
|
std::string key = "key" + ToString(i);
|
|
Status s = db->Get(ReadOptions(), key, &value);
|
|
if (data.count(key) == 0) {
|
|
ASSERT_TRUE(s.IsNotFound());
|
|
} else if (is_blob[i]) {
|
|
ASSERT_TRUE(s.IsCorruption());
|
|
} else {
|
|
ASSERT_OK(s);
|
|
ASSERT_EQ(data[key], value);
|
|
}
|
|
}
|
|
delete db;
|
|
}
|
|
|
|
// Test to verify that a NoSpace IOError Status is returned on reaching
|
|
// max_db_size limit.
|
|
TEST_F(BlobDBTest, OutOfSpace) {
|
|
// Use mock env to stop wall clock.
|
|
Options options;
|
|
options.env = mock_env_.get();
|
|
BlobDBOptions bdb_options;
|
|
bdb_options.max_db_size = 200;
|
|
bdb_options.is_fifo = false;
|
|
bdb_options.disable_background_tasks = true;
|
|
Open(bdb_options);
|
|
|
|
// Each stored blob has an overhead of about 42 bytes currently.
|
|
// So a small key + a 100 byte blob should take up ~150 bytes in the db.
|
|
std::string value(100, 'v');
|
|
ASSERT_OK(blob_db_->PutWithTTL(WriteOptions(), "key1", value, 60));
|
|
|
|
// Putting another blob should fail as ading it would exceed the max_db_size
|
|
// limit.
|
|
Status s = blob_db_->PutWithTTL(WriteOptions(), "key2", value, 60);
|
|
ASSERT_TRUE(s.IsIOError());
|
|
ASSERT_TRUE(s.IsNoSpace());
|
|
}
|
|
|
|
TEST_F(BlobDBTest, FIFOEviction) {
|
|
BlobDBOptions bdb_options;
|
|
bdb_options.max_db_size = 200;
|
|
bdb_options.blob_file_size = 100;
|
|
bdb_options.is_fifo = true;
|
|
bdb_options.disable_background_tasks = true;
|
|
Open(bdb_options);
|
|
|
|
std::atomic<int> evict_count{0};
|
|
SyncPoint::GetInstance()->SetCallBack(
|
|
"BlobDBImpl::EvictOldestBlobFile:Evicted",
|
|
[&](void *) { evict_count++; });
|
|
SyncPoint::GetInstance()->EnableProcessing();
|
|
|
|
// Each stored blob has an overhead of 32 bytes currently.
|
|
// So a 100 byte blob should take up 132 bytes.
|
|
std::string value(100, 'v');
|
|
ASSERT_OK(blob_db_->PutWithTTL(WriteOptions(), "key1", value, 10));
|
|
VerifyDB({{"key1", value}});
|
|
|
|
ASSERT_EQ(1, blob_db_impl()->TEST_GetBlobFiles().size());
|
|
|
|
// Adding another 100 bytes blob would take the total size to 264 bytes
|
|
// (2*132). max_db_size will be exceeded
|
|
// than max_db_size and trigger FIFO eviction.
|
|
ASSERT_OK(blob_db_->PutWithTTL(WriteOptions(), "key2", value, 60));
|
|
ASSERT_EQ(1, evict_count);
|
|
// key1 will exist until corresponding file be deleted.
|
|
VerifyDB({{"key1", value}, {"key2", value}});
|
|
|
|
// Adding another 100 bytes blob without TTL.
|
|
ASSERT_OK(blob_db_->Put(WriteOptions(), "key3", value));
|
|
ASSERT_EQ(2, evict_count);
|
|
// key1 and key2 will exist until corresponding file be deleted.
|
|
VerifyDB({{"key1", value}, {"key2", value}, {"key3", value}});
|
|
|
|
// The fourth blob file, without TTL.
|
|
ASSERT_OK(blob_db_->Put(WriteOptions(), "key4", value));
|
|
ASSERT_EQ(3, evict_count);
|
|
VerifyDB(
|
|
{{"key1", value}, {"key2", value}, {"key3", value}, {"key4", value}});
|
|
|
|
auto blob_files = blob_db_impl()->TEST_GetBlobFiles();
|
|
ASSERT_EQ(4, blob_files.size());
|
|
ASSERT_TRUE(blob_files[0]->Obsolete());
|
|
ASSERT_TRUE(blob_files[1]->Obsolete());
|
|
ASSERT_TRUE(blob_files[2]->Obsolete());
|
|
ASSERT_FALSE(blob_files[3]->Obsolete());
|
|
auto obsolete_files = blob_db_impl()->TEST_GetObsoleteFiles();
|
|
ASSERT_EQ(3, obsolete_files.size());
|
|
ASSERT_EQ(blob_files[0], obsolete_files[0]);
|
|
ASSERT_EQ(blob_files[1], obsolete_files[1]);
|
|
ASSERT_EQ(blob_files[2], obsolete_files[2]);
|
|
|
|
blob_db_impl()->TEST_DeleteObsoleteFiles();
|
|
obsolete_files = blob_db_impl()->TEST_GetObsoleteFiles();
|
|
ASSERT_TRUE(obsolete_files.empty());
|
|
VerifyDB({{"key4", value}});
|
|
}
|
|
|
|
TEST_F(BlobDBTest, FIFOEviction_NoOldestFileToEvict) {
|
|
Options options;
|
|
BlobDBOptions bdb_options;
|
|
bdb_options.max_db_size = 1000;
|
|
bdb_options.blob_file_size = 5000;
|
|
bdb_options.is_fifo = true;
|
|
bdb_options.disable_background_tasks = true;
|
|
Open(bdb_options);
|
|
|
|
std::atomic<int> evict_count{0};
|
|
SyncPoint::GetInstance()->SetCallBack(
|
|
"BlobDBImpl::EvictOldestBlobFile:Evicted",
|
|
[&](void *) { evict_count++; });
|
|
SyncPoint::GetInstance()->EnableProcessing();
|
|
|
|
std::string value(2000, 'v');
|
|
ASSERT_TRUE(Put("foo", std::string(2000, 'v')).IsNoSpace());
|
|
ASSERT_EQ(0, evict_count);
|
|
}
|
|
|
|
TEST_F(BlobDBTest, FIFOEviction_NoEnoughBlobFilesToEvict) {
|
|
BlobDBOptions bdb_options;
|
|
bdb_options.is_fifo = true;
|
|
bdb_options.min_blob_size = 100;
|
|
bdb_options.disable_background_tasks = true;
|
|
Options options;
|
|
// Use mock env to stop wall clock.
|
|
options.env = mock_env_.get();
|
|
options.disable_auto_compactions = true;
|
|
auto statistics = CreateDBStatistics();
|
|
options.statistics = statistics;
|
|
Open(bdb_options, options);
|
|
|
|
ASSERT_EQ(0, blob_db_impl()->TEST_live_sst_size());
|
|
std::string small_value(50, 'v');
|
|
std::map<std::string, std::string> data;
|
|
// Insert some data into LSM tree to make sure FIFO eviction take SST
|
|
// file size into account.
|
|
for (int i = 0; i < 1000; i++) {
|
|
ASSERT_OK(Put("key" + ToString(i), small_value, &data));
|
|
}
|
|
ASSERT_OK(blob_db_->Flush(FlushOptions()));
|
|
uint64_t live_sst_size = 0;
|
|
ASSERT_TRUE(blob_db_->GetIntProperty(DB::Properties::kTotalSstFilesSize,
|
|
&live_sst_size));
|
|
ASSERT_TRUE(live_sst_size > 0);
|
|
ASSERT_EQ(live_sst_size, blob_db_impl()->TEST_live_sst_size());
|
|
|
|
bdb_options.max_db_size = live_sst_size + 2000;
|
|
Reopen(bdb_options, options);
|
|
ASSERT_EQ(live_sst_size, blob_db_impl()->TEST_live_sst_size());
|
|
|
|
std::string value_1k(1000, 'v');
|
|
ASSERT_OK(PutWithTTL("large_key1", value_1k, 60, &data));
|
|
ASSERT_EQ(0, statistics->getTickerCount(BLOB_DB_FIFO_NUM_FILES_EVICTED));
|
|
VerifyDB(data);
|
|
// large_key2 evicts large_key1
|
|
ASSERT_OK(PutWithTTL("large_key2", value_1k, 60, &data));
|
|
ASSERT_EQ(1, statistics->getTickerCount(BLOB_DB_FIFO_NUM_FILES_EVICTED));
|
|
blob_db_impl()->TEST_DeleteObsoleteFiles();
|
|
data.erase("large_key1");
|
|
VerifyDB(data);
|
|
// large_key3 get no enough space even after evicting large_key2, so it
|
|
// instead return no space error.
|
|
std::string value_2k(2000, 'v');
|
|
ASSERT_TRUE(PutWithTTL("large_key3", value_2k, 60).IsNoSpace());
|
|
ASSERT_EQ(1, statistics->getTickerCount(BLOB_DB_FIFO_NUM_FILES_EVICTED));
|
|
// Verify large_key2 still exists.
|
|
VerifyDB(data);
|
|
}
|
|
|
|
// Test flush or compaction will trigger FIFO eviction since they update
|
|
// total SST file size.
|
|
TEST_F(BlobDBTest, FIFOEviction_TriggerOnSSTSizeChange) {
|
|
BlobDBOptions bdb_options;
|
|
bdb_options.max_db_size = 1000;
|
|
bdb_options.is_fifo = true;
|
|
bdb_options.min_blob_size = 100;
|
|
bdb_options.disable_background_tasks = true;
|
|
Options options;
|
|
// Use mock env to stop wall clock.
|
|
options.env = mock_env_.get();
|
|
auto statistics = CreateDBStatistics();
|
|
options.statistics = statistics;
|
|
options.compression = kNoCompression;
|
|
Open(bdb_options, options);
|
|
|
|
std::string value(800, 'v');
|
|
ASSERT_OK(PutWithTTL("large_key", value, 60));
|
|
ASSERT_EQ(1, blob_db_impl()->TEST_GetBlobFiles().size());
|
|
ASSERT_EQ(0, statistics->getTickerCount(BLOB_DB_FIFO_NUM_FILES_EVICTED));
|
|
VerifyDB({{"large_key", value}});
|
|
|
|
// Insert some small keys and flush to bring DB out of space.
|
|
std::map<std::string, std::string> data;
|
|
for (int i = 0; i < 10; i++) {
|
|
ASSERT_OK(Put("key" + ToString(i), "v", &data));
|
|
}
|
|
ASSERT_OK(blob_db_->Flush(FlushOptions()));
|
|
|
|
// Verify large_key is deleted by FIFO eviction.
|
|
blob_db_impl()->TEST_DeleteObsoleteFiles();
|
|
ASSERT_EQ(0, blob_db_impl()->TEST_GetBlobFiles().size());
|
|
ASSERT_EQ(1, statistics->getTickerCount(BLOB_DB_FIFO_NUM_FILES_EVICTED));
|
|
VerifyDB(data);
|
|
}
|
|
|
|
TEST_F(BlobDBTest, InlineSmallValues) {
|
|
constexpr uint64_t kMaxExpiration = 1000;
|
|
Random rnd(301);
|
|
BlobDBOptions bdb_options;
|
|
bdb_options.ttl_range_secs = kMaxExpiration;
|
|
bdb_options.min_blob_size = 100;
|
|
bdb_options.blob_file_size = 256 * 1000 * 1000;
|
|
bdb_options.disable_background_tasks = true;
|
|
Options options;
|
|
options.env = mock_env_.get();
|
|
mock_clock_->SetCurrentTime(0);
|
|
Open(bdb_options, options);
|
|
std::map<std::string, std::string> data;
|
|
std::map<std::string, KeyVersion> versions;
|
|
for (size_t i = 0; i < 1000; i++) {
|
|
bool is_small_value = rnd.Next() % 2;
|
|
bool has_ttl = rnd.Next() % 2;
|
|
uint64_t expiration = rnd.Next() % kMaxExpiration;
|
|
int len = is_small_value ? 50 : 200;
|
|
std::string key = "key" + ToString(i);
|
|
std::string value = rnd.HumanReadableString(len);
|
|
std::string blob_index;
|
|
data[key] = value;
|
|
SequenceNumber sequence = blob_db_->GetLatestSequenceNumber() + 1;
|
|
if (!has_ttl) {
|
|
ASSERT_OK(blob_db_->Put(WriteOptions(), key, value));
|
|
} else {
|
|
ASSERT_OK(blob_db_->PutUntil(WriteOptions(), key, value, expiration));
|
|
}
|
|
ASSERT_EQ(blob_db_->GetLatestSequenceNumber(), sequence);
|
|
versions[key] =
|
|
KeyVersion(key, value, sequence,
|
|
(is_small_value && !has_ttl) ? kTypeValue : kTypeBlobIndex);
|
|
}
|
|
VerifyDB(data);
|
|
VerifyBaseDB(versions);
|
|
auto *bdb_impl = static_cast<BlobDBImpl *>(blob_db_);
|
|
auto blob_files = bdb_impl->TEST_GetBlobFiles();
|
|
ASSERT_EQ(2, blob_files.size());
|
|
std::shared_ptr<BlobFile> non_ttl_file;
|
|
std::shared_ptr<BlobFile> ttl_file;
|
|
if (blob_files[0]->HasTTL()) {
|
|
ttl_file = blob_files[0];
|
|
non_ttl_file = blob_files[1];
|
|
} else {
|
|
non_ttl_file = blob_files[0];
|
|
ttl_file = blob_files[1];
|
|
}
|
|
ASSERT_FALSE(non_ttl_file->HasTTL());
|
|
ASSERT_TRUE(ttl_file->HasTTL());
|
|
}
|
|
|
|
TEST_F(BlobDBTest, UserCompactionFilter) {
|
|
class CustomerFilter : public CompactionFilter {
|
|
public:
|
|
bool Filter(int /*level*/, const Slice & /*key*/, const Slice &value,
|
|
std::string *new_value, bool *value_changed) const override {
|
|
*value_changed = false;
|
|
// changing value size to test value transitions between inlined data
|
|
// and stored-in-blob data
|
|
if (value.size() % 4 == 1) {
|
|
*new_value = value.ToString();
|
|
// double size by duplicating value
|
|
*new_value += *new_value;
|
|
*value_changed = true;
|
|
return false;
|
|
} else if (value.size() % 3 == 1) {
|
|
*new_value = value.ToString();
|
|
// trancate value size by half
|
|
*new_value = new_value->substr(0, new_value->size() / 2);
|
|
*value_changed = true;
|
|
return false;
|
|
} else if (value.size() % 2 == 1) {
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
bool IgnoreSnapshots() const override { return true; }
|
|
const char *Name() const override { return "CustomerFilter"; }
|
|
};
|
|
class CustomerFilterFactory : public CompactionFilterFactory {
|
|
const char *Name() const override { return "CustomerFilterFactory"; }
|
|
std::unique_ptr<CompactionFilter> CreateCompactionFilter(
|
|
const CompactionFilter::Context & /*context*/) override {
|
|
return std::unique_ptr<CompactionFilter>(new CustomerFilter());
|
|
}
|
|
};
|
|
|
|
constexpr size_t kNumPuts = 1 << 10;
|
|
// Generate both inlined and blob value
|
|
constexpr uint64_t kMinValueSize = 1 << 6;
|
|
constexpr uint64_t kMaxValueSize = 1 << 8;
|
|
constexpr uint64_t kMinBlobSize = 1 << 7;
|
|
static_assert(kMinValueSize < kMinBlobSize, "");
|
|
static_assert(kMaxValueSize > kMinBlobSize, "");
|
|
|
|
BlobDBOptions bdb_options;
|
|
bdb_options.min_blob_size = kMinBlobSize;
|
|
bdb_options.blob_file_size = kMaxValueSize * 10;
|
|
bdb_options.disable_background_tasks = true;
|
|
if (Snappy_Supported()) {
|
|
bdb_options.compression = CompressionType::kSnappyCompression;
|
|
}
|
|
// case_num == 0: Test user defined compaction filter
|
|
// case_num == 1: Test user defined compaction filter factory
|
|
for (int case_num = 0; case_num < 2; case_num++) {
|
|
Options options;
|
|
if (case_num == 0) {
|
|
options.compaction_filter = new CustomerFilter();
|
|
} else {
|
|
options.compaction_filter_factory.reset(new CustomerFilterFactory());
|
|
}
|
|
options.disable_auto_compactions = true;
|
|
options.env = mock_env_.get();
|
|
options.statistics = CreateDBStatistics();
|
|
Open(bdb_options, options);
|
|
|
|
std::map<std::string, std::string> data;
|
|
std::map<std::string, std::string> data_after_compact;
|
|
Random rnd(301);
|
|
uint64_t value_size = kMinValueSize;
|
|
int drop_record = 0;
|
|
for (size_t i = 0; i < kNumPuts; ++i) {
|
|
std::ostringstream oss;
|
|
oss << "key" << std::setw(4) << std::setfill('0') << i;
|
|
|
|
const std::string key(oss.str());
|
|
const std::string value = rnd.HumanReadableString((int)value_size);
|
|
const SequenceNumber sequence = blob_db_->GetLatestSequenceNumber() + 1;
|
|
|
|
ASSERT_OK(Put(key, value));
|
|
ASSERT_EQ(blob_db_->GetLatestSequenceNumber(), sequence);
|
|
|
|
data[key] = value;
|
|
if (value.length() % 4 == 1) {
|
|
data_after_compact[key] = value + value;
|
|
} else if (value.length() % 3 == 1) {
|
|
data_after_compact[key] = value.substr(0, value.size() / 2);
|
|
} else if (value.length() % 2 == 1) {
|
|
++drop_record;
|
|
} else {
|
|
data_after_compact[key] = value;
|
|
}
|
|
|
|
if (++value_size > kMaxValueSize) {
|
|
value_size = kMinValueSize;
|
|
}
|
|
}
|
|
// Verify full data set
|
|
VerifyDB(data);
|
|
// Applying compaction filter for records
|
|
ASSERT_OK(blob_db_->CompactRange(CompactRangeOptions(), nullptr, nullptr));
|
|
// Verify data after compaction, only value with even length left.
|
|
VerifyDB(data_after_compact);
|
|
ASSERT_EQ(drop_record,
|
|
options.statistics->getTickerCount(COMPACTION_KEY_DROP_USER));
|
|
delete options.compaction_filter;
|
|
Destroy();
|
|
}
|
|
}
|
|
|
|
// Test user comapction filter when there is IO error on blob data.
|
|
TEST_F(BlobDBTest, UserCompactionFilter_BlobIOError) {
|
|
class CustomerFilter : public CompactionFilter {
|
|
public:
|
|
bool Filter(int /*level*/, const Slice & /*key*/, const Slice &value,
|
|
std::string *new_value, bool *value_changed) const override {
|
|
*new_value = value.ToString() + "_new";
|
|
*value_changed = true;
|
|
return false;
|
|
}
|
|
bool IgnoreSnapshots() const override { return true; }
|
|
const char *Name() const override { return "CustomerFilter"; }
|
|
};
|
|
|
|
constexpr size_t kNumPuts = 100;
|
|
constexpr int kValueSize = 100;
|
|
|
|
BlobDBOptions bdb_options;
|
|
bdb_options.min_blob_size = 0;
|
|
bdb_options.blob_file_size = kValueSize * 10;
|
|
bdb_options.disable_background_tasks = true;
|
|
bdb_options.compression = CompressionType::kNoCompression;
|
|
|
|
std::vector<std::string> io_failure_cases = {
|
|
"BlobDBImpl::CreateBlobFileAndWriter",
|
|
"BlobIndexCompactionFilterBase::WriteBlobToNewFile",
|
|
"BlobDBImpl::CloseBlobFile"};
|
|
|
|
for (size_t case_num = 0; case_num < io_failure_cases.size(); case_num++) {
|
|
Options options;
|
|
options.compaction_filter = new CustomerFilter();
|
|
options.disable_auto_compactions = true;
|
|
options.env = fault_injection_env_.get();
|
|
options.statistics = CreateDBStatistics();
|
|
Open(bdb_options, options);
|
|
|
|
std::map<std::string, std::string> data;
|
|
Random rnd(301);
|
|
for (size_t i = 0; i < kNumPuts; ++i) {
|
|
std::ostringstream oss;
|
|
oss << "key" << std::setw(4) << std::setfill('0') << i;
|
|
|
|
const std::string key(oss.str());
|
|
const std::string value = rnd.HumanReadableString(kValueSize);
|
|
const SequenceNumber sequence = blob_db_->GetLatestSequenceNumber() + 1;
|
|
|
|
ASSERT_OK(Put(key, value));
|
|
ASSERT_EQ(blob_db_->GetLatestSequenceNumber(), sequence);
|
|
data[key] = value;
|
|
}
|
|
|
|
// Verify full data set
|
|
VerifyDB(data);
|
|
|
|
SyncPoint::GetInstance()->SetCallBack(
|
|
io_failure_cases[case_num], [&](void * /*arg*/) {
|
|
fault_injection_env_->SetFilesystemActive(false, Status::IOError());
|
|
});
|
|
SyncPoint::GetInstance()->EnableProcessing();
|
|
auto s = blob_db_->CompactRange(CompactRangeOptions(), nullptr, nullptr);
|
|
ASSERT_TRUE(s.IsIOError());
|
|
|
|
// Reactivate file system to allow test to verify and close DB.
|
|
fault_injection_env_->SetFilesystemActive(true);
|
|
SyncPoint::GetInstance()->DisableProcessing();
|
|
SyncPoint::GetInstance()->ClearAllCallBacks();
|
|
|
|
// Verify full data set after compaction failure
|
|
VerifyDB(data);
|
|
|
|
delete options.compaction_filter;
|
|
Destroy();
|
|
}
|
|
}
|
|
|
|
// Test comapction filter should remove any expired blob index.
|
|
TEST_F(BlobDBTest, FilterExpiredBlobIndex) {
|
|
constexpr size_t kNumKeys = 100;
|
|
constexpr size_t kNumPuts = 1000;
|
|
constexpr uint64_t kMaxExpiration = 1000;
|
|
constexpr uint64_t kCompactTime = 500;
|
|
constexpr uint64_t kMinBlobSize = 100;
|
|
Random rnd(301);
|
|
mock_clock_->SetCurrentTime(0);
|
|
BlobDBOptions bdb_options;
|
|
bdb_options.min_blob_size = kMinBlobSize;
|
|
bdb_options.disable_background_tasks = true;
|
|
Options options;
|
|
options.env = mock_env_.get();
|
|
Open(bdb_options, options);
|
|
|
|
std::map<std::string, std::string> data;
|
|
std::map<std::string, std::string> data_after_compact;
|
|
for (size_t i = 0; i < kNumPuts; i++) {
|
|
bool is_small_value = rnd.Next() % 2;
|
|
bool has_ttl = rnd.Next() % 2;
|
|
uint64_t expiration = rnd.Next() % kMaxExpiration;
|
|
int len = is_small_value ? 10 : 200;
|
|
std::string key = "key" + ToString(rnd.Next() % kNumKeys);
|
|
std::string value = rnd.HumanReadableString(len);
|
|
if (!has_ttl) {
|
|
if (is_small_value) {
|
|
std::string blob_entry;
|
|
BlobIndex::EncodeInlinedTTL(&blob_entry, expiration, value);
|
|
// Fake blob index with TTL. See what it will do.
|
|
ASSERT_GT(kMinBlobSize, blob_entry.size());
|
|
value = blob_entry;
|
|
}
|
|
ASSERT_OK(Put(key, value));
|
|
data_after_compact[key] = value;
|
|
} else {
|
|
ASSERT_OK(PutUntil(key, value, expiration));
|
|
if (expiration <= kCompactTime) {
|
|
data_after_compact.erase(key);
|
|
} else {
|
|
data_after_compact[key] = value;
|
|
}
|
|
}
|
|
data[key] = value;
|
|
}
|
|
VerifyDB(data);
|
|
|
|
mock_clock_->SetCurrentTime(kCompactTime);
|
|
// Take a snapshot before compaction. Make sure expired blob indexes is
|
|
// filtered regardless of snapshot.
|
|
const Snapshot *snapshot = blob_db_->GetSnapshot();
|
|
// Issue manual compaction to trigger compaction filter.
|
|
ASSERT_OK(blob_db_->CompactRange(CompactRangeOptions(), nullptr, nullptr));
|
|
blob_db_->ReleaseSnapshot(snapshot);
|
|
// Verify expired blob index are filtered.
|
|
std::vector<KeyVersion> versions;
|
|
const size_t kMaxKeys = 10000;
|
|
ASSERT_OK(GetAllKeyVersions(blob_db_, "", "", kMaxKeys, &versions));
|
|
ASSERT_EQ(data_after_compact.size(), versions.size());
|
|
for (auto &version : versions) {
|
|
ASSERT_TRUE(data_after_compact.count(version.user_key) > 0);
|
|
}
|
|
VerifyDB(data_after_compact);
|
|
}
|
|
|
|
// Test compaction filter should remove any blob index where corresponding
|
|
// blob file has been removed.
|
|
TEST_F(BlobDBTest, FilterFileNotAvailable) {
|
|
BlobDBOptions bdb_options;
|
|
bdb_options.min_blob_size = 0;
|
|
bdb_options.disable_background_tasks = true;
|
|
Options options;
|
|
options.disable_auto_compactions = true;
|
|
Open(bdb_options, options);
|
|
|
|
ASSERT_OK(Put("foo", "v1"));
|
|
auto blob_files = blob_db_impl()->TEST_GetBlobFiles();
|
|
ASSERT_EQ(1, blob_files.size());
|
|
ASSERT_EQ(1, blob_files[0]->BlobFileNumber());
|
|
ASSERT_OK(blob_db_impl()->TEST_CloseBlobFile(blob_files[0]));
|
|
|
|
ASSERT_OK(Put("bar", "v2"));
|
|
blob_files = blob_db_impl()->TEST_GetBlobFiles();
|
|
ASSERT_EQ(2, blob_files.size());
|
|
ASSERT_EQ(2, blob_files[1]->BlobFileNumber());
|
|
ASSERT_OK(blob_db_impl()->TEST_CloseBlobFile(blob_files[1]));
|
|
|
|
const size_t kMaxKeys = 10000;
|
|
|
|
DB *base_db = blob_db_->GetRootDB();
|
|
std::vector<KeyVersion> versions;
|
|
ASSERT_OK(GetAllKeyVersions(base_db, "", "", kMaxKeys, &versions));
|
|
ASSERT_EQ(2, versions.size());
|
|
ASSERT_EQ("bar", versions[0].user_key);
|
|
ASSERT_EQ("foo", versions[1].user_key);
|
|
VerifyDB({{"bar", "v2"}, {"foo", "v1"}});
|
|
|
|
ASSERT_OK(blob_db_->CompactRange(CompactRangeOptions(), nullptr, nullptr));
|
|
ASSERT_OK(GetAllKeyVersions(base_db, "", "", kMaxKeys, &versions));
|
|
ASSERT_EQ(2, versions.size());
|
|
ASSERT_EQ("bar", versions[0].user_key);
|
|
ASSERT_EQ("foo", versions[1].user_key);
|
|
VerifyDB({{"bar", "v2"}, {"foo", "v1"}});
|
|
|
|
// Remove the first blob file and compact. foo should be remove from base db.
|
|
blob_db_impl()->TEST_ObsoleteBlobFile(blob_files[0]);
|
|
blob_db_impl()->TEST_DeleteObsoleteFiles();
|
|
ASSERT_OK(blob_db_->CompactRange(CompactRangeOptions(), nullptr, nullptr));
|
|
ASSERT_OK(GetAllKeyVersions(base_db, "", "", kMaxKeys, &versions));
|
|
ASSERT_EQ(1, versions.size());
|
|
ASSERT_EQ("bar", versions[0].user_key);
|
|
VerifyDB({{"bar", "v2"}});
|
|
|
|
// Remove the second blob file and compact. bar should be remove from base db.
|
|
blob_db_impl()->TEST_ObsoleteBlobFile(blob_files[1]);
|
|
blob_db_impl()->TEST_DeleteObsoleteFiles();
|
|
ASSERT_OK(blob_db_->CompactRange(CompactRangeOptions(), nullptr, nullptr));
|
|
ASSERT_OK(GetAllKeyVersions(base_db, "", "", kMaxKeys, &versions));
|
|
ASSERT_EQ(0, versions.size());
|
|
VerifyDB({});
|
|
}
|
|
|
|
// Test compaction filter should filter any inlined TTL keys that would have
|
|
// been dropped by last FIFO eviction if they are store out-of-line.
|
|
TEST_F(BlobDBTest, FilterForFIFOEviction) {
|
|
Random rnd(215);
|
|
BlobDBOptions bdb_options;
|
|
bdb_options.min_blob_size = 100;
|
|
bdb_options.ttl_range_secs = 60;
|
|
bdb_options.max_db_size = 0;
|
|
bdb_options.disable_background_tasks = true;
|
|
Options options;
|
|
// Use mock env to stop wall clock.
|
|
mock_clock_->SetCurrentTime(0);
|
|
options.env = mock_env_.get();
|
|
auto statistics = CreateDBStatistics();
|
|
options.statistics = statistics;
|
|
options.disable_auto_compactions = true;
|
|
Open(bdb_options, options);
|
|
|
|
std::map<std::string, std::string> data;
|
|
std::map<std::string, std::string> data_after_compact;
|
|
// Insert some small values that will be inlined.
|
|
for (int i = 0; i < 1000; i++) {
|
|
std::string key = "key" + ToString(i);
|
|
std::string value = rnd.HumanReadableString(50);
|
|
uint64_t ttl = rnd.Next() % 120 + 1;
|
|
ASSERT_OK(PutWithTTL(key, value, ttl, &data));
|
|
if (ttl >= 60) {
|
|
data_after_compact[key] = value;
|
|
}
|
|
}
|
|
uint64_t num_keys_to_evict = data.size() - data_after_compact.size();
|
|
ASSERT_OK(blob_db_->Flush(FlushOptions()));
|
|
uint64_t live_sst_size = blob_db_impl()->TEST_live_sst_size();
|
|
ASSERT_GT(live_sst_size, 0);
|
|
VerifyDB(data);
|
|
|
|
bdb_options.max_db_size = live_sst_size + 30000;
|
|
bdb_options.is_fifo = true;
|
|
Reopen(bdb_options, options);
|
|
VerifyDB(data);
|
|
|
|
// Put two large values, each on a different blob file.
|
|
std::string large_value(10000, 'v');
|
|
ASSERT_OK(PutWithTTL("large_key1", large_value, 90));
|
|
ASSERT_OK(PutWithTTL("large_key2", large_value, 150));
|
|
ASSERT_EQ(2, blob_db_impl()->TEST_GetBlobFiles().size());
|
|
ASSERT_EQ(0, statistics->getTickerCount(BLOB_DB_FIFO_NUM_FILES_EVICTED));
|
|
data["large_key1"] = large_value;
|
|
data["large_key2"] = large_value;
|
|
VerifyDB(data);
|
|
|
|
// Put a third large value which will bring the DB out of space.
|
|
// FIFO eviction will evict the file of large_key1.
|
|
ASSERT_OK(PutWithTTL("large_key3", large_value, 150));
|
|
ASSERT_EQ(1, statistics->getTickerCount(BLOB_DB_FIFO_NUM_FILES_EVICTED));
|
|
ASSERT_EQ(2, blob_db_impl()->TEST_GetBlobFiles().size());
|
|
blob_db_impl()->TEST_DeleteObsoleteFiles();
|
|
ASSERT_EQ(1, blob_db_impl()->TEST_GetBlobFiles().size());
|
|
data.erase("large_key1");
|
|
data["large_key3"] = large_value;
|
|
VerifyDB(data);
|
|
|
|
// Putting some more small values. These values shouldn't be evicted by
|
|
// compaction filter since they are inserted after FIFO eviction.
|
|
ASSERT_OK(PutWithTTL("foo", "v", 30, &data_after_compact));
|
|
ASSERT_OK(PutWithTTL("bar", "v", 30, &data_after_compact));
|
|
|
|
// FIFO eviction doesn't trigger again since there enough room for the flush.
|
|
ASSERT_OK(blob_db_->Flush(FlushOptions()));
|
|
ASSERT_EQ(1, statistics->getTickerCount(BLOB_DB_FIFO_NUM_FILES_EVICTED));
|
|
|
|
// Manual compact and check if compaction filter evict those keys with
|
|
// expiration < 60.
|
|
ASSERT_OK(blob_db_->CompactRange(CompactRangeOptions(), nullptr, nullptr));
|
|
// All keys with expiration < 60, plus large_key1 is filtered by
|
|
// compaction filter.
|
|
ASSERT_EQ(num_keys_to_evict + 1,
|
|
statistics->getTickerCount(BLOB_DB_BLOB_INDEX_EVICTED_COUNT));
|
|
ASSERT_EQ(1, statistics->getTickerCount(BLOB_DB_FIFO_NUM_FILES_EVICTED));
|
|
ASSERT_EQ(1, blob_db_impl()->TEST_GetBlobFiles().size());
|
|
data_after_compact["large_key2"] = large_value;
|
|
data_after_compact["large_key3"] = large_value;
|
|
VerifyDB(data_after_compact);
|
|
}
|
|
|
|
TEST_F(BlobDBTest, GarbageCollection) {
|
|
constexpr size_t kNumPuts = 1 << 10;
|
|
|
|
constexpr uint64_t kExpiration = 1000;
|
|
constexpr uint64_t kCompactTime = 500;
|
|
|
|
constexpr uint64_t kKeySize = 7; // "key" + 4 digits
|
|
|
|
constexpr uint64_t kSmallValueSize = 1 << 6;
|
|
constexpr uint64_t kLargeValueSize = 1 << 8;
|
|
constexpr uint64_t kMinBlobSize = 1 << 7;
|
|
static_assert(kSmallValueSize < kMinBlobSize, "");
|
|
static_assert(kLargeValueSize > kMinBlobSize, "");
|
|
|
|
constexpr size_t kBlobsPerFile = 8;
|
|
constexpr size_t kNumBlobFiles = kNumPuts / kBlobsPerFile;
|
|
constexpr uint64_t kBlobFileSize =
|
|
BlobLogHeader::kSize +
|
|
(BlobLogRecord::kHeaderSize + kKeySize + kLargeValueSize) * kBlobsPerFile;
|
|
|
|
BlobDBOptions bdb_options;
|
|
bdb_options.min_blob_size = kMinBlobSize;
|
|
bdb_options.blob_file_size = kBlobFileSize;
|
|
bdb_options.enable_garbage_collection = true;
|
|
bdb_options.garbage_collection_cutoff = 0.25;
|
|
bdb_options.disable_background_tasks = true;
|
|
|
|
Options options;
|
|
options.env = mock_env_.get();
|
|
options.statistics = CreateDBStatistics();
|
|
|
|
Open(bdb_options, options);
|
|
|
|
std::map<std::string, std::string> data;
|
|
std::map<std::string, KeyVersion> blob_value_versions;
|
|
std::map<std::string, BlobIndexVersion> blob_index_versions;
|
|
|
|
Random rnd(301);
|
|
|
|
// Add a bunch of large non-TTL values. These will be written to non-TTL
|
|
// blob files and will be subject to GC.
|
|
for (size_t i = 0; i < kNumPuts; ++i) {
|
|
std::ostringstream oss;
|
|
oss << "key" << std::setw(4) << std::setfill('0') << i;
|
|
|
|
const std::string key(oss.str());
|
|
const std::string value = rnd.HumanReadableString(kLargeValueSize);
|
|
const SequenceNumber sequence = blob_db_->GetLatestSequenceNumber() + 1;
|
|
|
|
ASSERT_OK(Put(key, value));
|
|
ASSERT_EQ(blob_db_->GetLatestSequenceNumber(), sequence);
|
|
|
|
data[key] = value;
|
|
blob_value_versions[key] = KeyVersion(key, value, sequence, kTypeBlobIndex);
|
|
blob_index_versions[key] =
|
|
BlobIndexVersion(key, /* file_number */ (i >> 3) + 1, kNoExpiration,
|
|
sequence, kTypeBlobIndex);
|
|
}
|
|
|
|
// Add some small and/or TTL values that will be ignored during GC.
|
|
// First, add a large TTL value will be written to its own TTL blob file.
|
|
{
|
|
const std::string key("key2000");
|
|
const std::string value = rnd.HumanReadableString(kLargeValueSize);
|
|
const SequenceNumber sequence = blob_db_->GetLatestSequenceNumber() + 1;
|
|
|
|
ASSERT_OK(PutUntil(key, value, kExpiration));
|
|
ASSERT_EQ(blob_db_->GetLatestSequenceNumber(), sequence);
|
|
|
|
data[key] = value;
|
|
blob_value_versions[key] = KeyVersion(key, value, sequence, kTypeBlobIndex);
|
|
blob_index_versions[key] =
|
|
BlobIndexVersion(key, /* file_number */ kNumBlobFiles + 1, kExpiration,
|
|
sequence, kTypeBlobIndex);
|
|
}
|
|
|
|
// Now add a small TTL value (which will be inlined).
|
|
{
|
|
const std::string key("key3000");
|
|
const std::string value = rnd.HumanReadableString(kSmallValueSize);
|
|
const SequenceNumber sequence = blob_db_->GetLatestSequenceNumber() + 1;
|
|
|
|
ASSERT_OK(PutUntil(key, value, kExpiration));
|
|
ASSERT_EQ(blob_db_->GetLatestSequenceNumber(), sequence);
|
|
|
|
data[key] = value;
|
|
blob_value_versions[key] = KeyVersion(key, value, sequence, kTypeBlobIndex);
|
|
blob_index_versions[key] = BlobIndexVersion(
|
|
key, kInvalidBlobFileNumber, kExpiration, sequence, kTypeBlobIndex);
|
|
}
|
|
|
|
// Finally, add a small non-TTL value (which will be stored as a regular
|
|
// value).
|
|
{
|
|
const std::string key("key4000");
|
|
const std::string value = rnd.HumanReadableString(kSmallValueSize);
|
|
const SequenceNumber sequence = blob_db_->GetLatestSequenceNumber() + 1;
|
|
|
|
ASSERT_OK(Put(key, value));
|
|
ASSERT_EQ(blob_db_->GetLatestSequenceNumber(), sequence);
|
|
|
|
data[key] = value;
|
|
blob_value_versions[key] = KeyVersion(key, value, sequence, kTypeValue);
|
|
blob_index_versions[key] = BlobIndexVersion(
|
|
key, kInvalidBlobFileNumber, kNoExpiration, sequence, kTypeValue);
|
|
}
|
|
|
|
VerifyDB(data);
|
|
VerifyBaseDB(blob_value_versions);
|
|
VerifyBaseDBBlobIndex(blob_index_versions);
|
|
|
|
// At this point, we should have 128 immutable non-TTL files with file numbers
|
|
// 1..128.
|
|
{
|
|
auto live_imm_files = blob_db_impl()->TEST_GetLiveImmNonTTLFiles();
|
|
ASSERT_EQ(live_imm_files.size(), kNumBlobFiles);
|
|
for (size_t i = 0; i < kNumBlobFiles; ++i) {
|
|
ASSERT_EQ(live_imm_files[i]->BlobFileNumber(), i + 1);
|
|
ASSERT_EQ(live_imm_files[i]->GetFileSize(),
|
|
kBlobFileSize + BlobLogFooter::kSize);
|
|
}
|
|
}
|
|
|
|
mock_clock_->SetCurrentTime(kCompactTime);
|
|
|
|
ASSERT_OK(blob_db_->CompactRange(CompactRangeOptions(), nullptr, nullptr));
|
|
|
|
// We expect the data to remain the same and the blobs from the oldest N files
|
|
// to be moved to new files. Sequence numbers get zeroed out during the
|
|
// compaction.
|
|
VerifyDB(data);
|
|
|
|
for (auto &pair : blob_value_versions) {
|
|
KeyVersion &version = pair.second;
|
|
version.sequence = 0;
|
|
}
|
|
|
|
VerifyBaseDB(blob_value_versions);
|
|
|
|
const uint64_t cutoff = static_cast<uint64_t>(
|
|
bdb_options.garbage_collection_cutoff * kNumBlobFiles);
|
|
for (auto &pair : blob_index_versions) {
|
|
BlobIndexVersion &version = pair.second;
|
|
|
|
version.sequence = 0;
|
|
|
|
if (version.file_number == kInvalidBlobFileNumber) {
|
|
continue;
|
|
}
|
|
|
|
if (version.file_number > cutoff) {
|
|
continue;
|
|
}
|
|
|
|
version.file_number += kNumBlobFiles + 1;
|
|
}
|
|
|
|
VerifyBaseDBBlobIndex(blob_index_versions);
|
|
|
|
const Statistics *const statistics = options.statistics.get();
|
|
assert(statistics);
|
|
|
|
ASSERT_EQ(statistics->getTickerCount(BLOB_DB_GC_NUM_FILES), cutoff);
|
|
ASSERT_EQ(statistics->getTickerCount(BLOB_DB_GC_NUM_NEW_FILES), cutoff);
|
|
ASSERT_EQ(statistics->getTickerCount(BLOB_DB_GC_FAILURES), 0);
|
|
ASSERT_EQ(statistics->getTickerCount(BLOB_DB_GC_NUM_KEYS_RELOCATED),
|
|
cutoff * kBlobsPerFile);
|
|
ASSERT_EQ(statistics->getTickerCount(BLOB_DB_GC_BYTES_RELOCATED),
|
|
cutoff * kBlobsPerFile * kLargeValueSize);
|
|
|
|
// At this point, we should have 128 immutable non-TTL files with file numbers
|
|
// 33..128 and 130..161. (129 was taken by the TTL blob file.)
|
|
{
|
|
auto live_imm_files = blob_db_impl()->TEST_GetLiveImmNonTTLFiles();
|
|
ASSERT_EQ(live_imm_files.size(), kNumBlobFiles);
|
|
for (size_t i = 0; i < kNumBlobFiles; ++i) {
|
|
uint64_t expected_file_number = i + cutoff + 1;
|
|
if (expected_file_number > kNumBlobFiles) {
|
|
++expected_file_number;
|
|
}
|
|
|
|
ASSERT_EQ(live_imm_files[i]->BlobFileNumber(), expected_file_number);
|
|
ASSERT_EQ(live_imm_files[i]->GetFileSize(),
|
|
kBlobFileSize + BlobLogFooter::kSize);
|
|
}
|
|
}
|
|
}
|
|
|
|
TEST_F(BlobDBTest, GarbageCollectionFailure) {
|
|
BlobDBOptions bdb_options;
|
|
bdb_options.min_blob_size = 0;
|
|
bdb_options.enable_garbage_collection = true;
|
|
bdb_options.garbage_collection_cutoff = 1.0;
|
|
bdb_options.disable_background_tasks = true;
|
|
|
|
Options db_options;
|
|
db_options.statistics = CreateDBStatistics();
|
|
|
|
Open(bdb_options, db_options);
|
|
|
|
// Write a couple of valid blobs.
|
|
ASSERT_OK(Put("foo", "bar"));
|
|
ASSERT_OK(Put("dead", "beef"));
|
|
|
|
// Write a fake blob reference into the base DB that cannot be parsed.
|
|
WriteBatch batch;
|
|
ASSERT_OK(WriteBatchInternal::PutBlobIndex(
|
|
&batch, blob_db_->DefaultColumnFamily()->GetID(), "key",
|
|
"not a valid blob index"));
|
|
ASSERT_OK(blob_db_->GetRootDB()->Write(WriteOptions(), &batch));
|
|
|
|
auto blob_files = blob_db_impl()->TEST_GetBlobFiles();
|
|
ASSERT_EQ(blob_files.size(), 1);
|
|
auto blob_file = blob_files[0];
|
|
ASSERT_OK(blob_db_impl()->TEST_CloseBlobFile(blob_file));
|
|
|
|
ASSERT_TRUE(blob_db_->CompactRange(CompactRangeOptions(), nullptr, nullptr)
|
|
.IsCorruption());
|
|
|
|
const Statistics *const statistics = db_options.statistics.get();
|
|
assert(statistics);
|
|
|
|
ASSERT_EQ(statistics->getTickerCount(BLOB_DB_GC_NUM_FILES), 0);
|
|
ASSERT_EQ(statistics->getTickerCount(BLOB_DB_GC_NUM_NEW_FILES), 1);
|
|
ASSERT_EQ(statistics->getTickerCount(BLOB_DB_GC_FAILURES), 1);
|
|
ASSERT_EQ(statistics->getTickerCount(BLOB_DB_GC_NUM_KEYS_RELOCATED), 2);
|
|
ASSERT_EQ(statistics->getTickerCount(BLOB_DB_GC_BYTES_RELOCATED), 7);
|
|
}
|
|
|
|
// File should be evicted after expiration.
|
|
TEST_F(BlobDBTest, EvictExpiredFile) {
|
|
BlobDBOptions bdb_options;
|
|
bdb_options.ttl_range_secs = 100;
|
|
bdb_options.min_blob_size = 0;
|
|
bdb_options.disable_background_tasks = true;
|
|
Options options;
|
|
options.env = mock_env_.get();
|
|
Open(bdb_options, options);
|
|
mock_clock_->SetCurrentTime(50);
|
|
std::map<std::string, std::string> data;
|
|
ASSERT_OK(PutWithTTL("foo", "bar", 100, &data));
|
|
auto blob_files = blob_db_impl()->TEST_GetBlobFiles();
|
|
ASSERT_EQ(1, blob_files.size());
|
|
auto blob_file = blob_files[0];
|
|
ASSERT_FALSE(blob_file->Immutable());
|
|
ASSERT_FALSE(blob_file->Obsolete());
|
|
VerifyDB(data);
|
|
mock_clock_->SetCurrentTime(250);
|
|
// The key should expired now.
|
|
blob_db_impl()->TEST_EvictExpiredFiles();
|
|
ASSERT_EQ(1, blob_db_impl()->TEST_GetBlobFiles().size());
|
|
ASSERT_EQ(1, blob_db_impl()->TEST_GetObsoleteFiles().size());
|
|
ASSERT_TRUE(blob_file->Immutable());
|
|
ASSERT_TRUE(blob_file->Obsolete());
|
|
blob_db_impl()->TEST_DeleteObsoleteFiles();
|
|
ASSERT_EQ(0, blob_db_impl()->TEST_GetBlobFiles().size());
|
|
ASSERT_EQ(0, blob_db_impl()->TEST_GetObsoleteFiles().size());
|
|
// Make sure we don't return garbage value after blob file being evicted,
|
|
// but the blob index still exists in the LSM tree.
|
|
std::string val = "";
|
|
ASSERT_TRUE(blob_db_->Get(ReadOptions(), "foo", &val).IsNotFound());
|
|
ASSERT_EQ("", val);
|
|
}
|
|
|
|
TEST_F(BlobDBTest, DisableFileDeletions) {
|
|
BlobDBOptions bdb_options;
|
|
bdb_options.disable_background_tasks = true;
|
|
Open(bdb_options);
|
|
std::map<std::string, std::string> data;
|
|
for (bool force : {true, false}) {
|
|
ASSERT_OK(Put("foo", "v", &data));
|
|
auto blob_files = blob_db_impl()->TEST_GetBlobFiles();
|
|
ASSERT_EQ(1, blob_files.size());
|
|
auto blob_file = blob_files[0];
|
|
ASSERT_OK(blob_db_impl()->TEST_CloseBlobFile(blob_file));
|
|
blob_db_impl()->TEST_ObsoleteBlobFile(blob_file);
|
|
ASSERT_EQ(1, blob_db_impl()->TEST_GetBlobFiles().size());
|
|
ASSERT_EQ(1, blob_db_impl()->TEST_GetObsoleteFiles().size());
|
|
// Call DisableFileDeletions twice.
|
|
ASSERT_OK(blob_db_->DisableFileDeletions());
|
|
ASSERT_OK(blob_db_->DisableFileDeletions());
|
|
// File deletions should be disabled.
|
|
blob_db_impl()->TEST_DeleteObsoleteFiles();
|
|
ASSERT_EQ(1, blob_db_impl()->TEST_GetBlobFiles().size());
|
|
ASSERT_EQ(1, blob_db_impl()->TEST_GetObsoleteFiles().size());
|
|
VerifyDB(data);
|
|
// Enable file deletions once. If force=true, file deletion is enabled.
|
|
// Otherwise it needs to enable it for a second time.
|
|
ASSERT_OK(blob_db_->EnableFileDeletions(force));
|
|
blob_db_impl()->TEST_DeleteObsoleteFiles();
|
|
if (!force) {
|
|
ASSERT_EQ(1, blob_db_impl()->TEST_GetBlobFiles().size());
|
|
ASSERT_EQ(1, blob_db_impl()->TEST_GetObsoleteFiles().size());
|
|
VerifyDB(data);
|
|
// Call EnableFileDeletions a second time.
|
|
ASSERT_OK(blob_db_->EnableFileDeletions(false));
|
|
blob_db_impl()->TEST_DeleteObsoleteFiles();
|
|
}
|
|
// Regardless of value of `force`, file should be deleted by now.
|
|
ASSERT_EQ(0, blob_db_impl()->TEST_GetBlobFiles().size());
|
|
ASSERT_EQ(0, blob_db_impl()->TEST_GetObsoleteFiles().size());
|
|
VerifyDB({});
|
|
}
|
|
}
|
|
|
|
TEST_F(BlobDBTest, MaintainBlobFileToSstMapping) {
|
|
BlobDBOptions bdb_options;
|
|
bdb_options.enable_garbage_collection = true;
|
|
bdb_options.disable_background_tasks = true;
|
|
Open(bdb_options);
|
|
|
|
// Register some dummy blob files.
|
|
blob_db_impl()->TEST_AddDummyBlobFile(1, /* immutable_sequence */ 200);
|
|
blob_db_impl()->TEST_AddDummyBlobFile(2, /* immutable_sequence */ 300);
|
|
blob_db_impl()->TEST_AddDummyBlobFile(3, /* immutable_sequence */ 400);
|
|
blob_db_impl()->TEST_AddDummyBlobFile(4, /* immutable_sequence */ 500);
|
|
blob_db_impl()->TEST_AddDummyBlobFile(5, /* immutable_sequence */ 600);
|
|
|
|
// Initialize the blob <-> SST file mapping. First, add some SST files with
|
|
// blob file references, then some without.
|
|
std::vector<LiveFileMetaData> live_files;
|
|
|
|
for (uint64_t i = 1; i <= 10; ++i) {
|
|
LiveFileMetaData live_file;
|
|
live_file.file_number = i;
|
|
live_file.oldest_blob_file_number = ((i - 1) % 5) + 1;
|
|
|
|
live_files.emplace_back(live_file);
|
|
}
|
|
|
|
for (uint64_t i = 11; i <= 20; ++i) {
|
|
LiveFileMetaData live_file;
|
|
live_file.file_number = i;
|
|
|
|
live_files.emplace_back(live_file);
|
|
}
|
|
|
|
blob_db_impl()->TEST_InitializeBlobFileToSstMapping(live_files);
|
|
|
|
// Check that the blob <-> SST mappings have been correctly initialized.
|
|
auto blob_files = blob_db_impl()->TEST_GetBlobFiles();
|
|
|
|
ASSERT_EQ(blob_files.size(), 5);
|
|
|
|
{
|
|
auto live_imm_files = blob_db_impl()->TEST_GetLiveImmNonTTLFiles();
|
|
ASSERT_EQ(live_imm_files.size(), 5);
|
|
for (size_t i = 0; i < 5; ++i) {
|
|
ASSERT_EQ(live_imm_files[i]->BlobFileNumber(), i + 1);
|
|
}
|
|
|
|
ASSERT_TRUE(blob_db_impl()->TEST_GetObsoleteFiles().empty());
|
|
}
|
|
|
|
{
|
|
const std::vector<std::unordered_set<uint64_t>> expected_sst_files{
|
|
{1, 6}, {2, 7}, {3, 8}, {4, 9}, {5, 10}};
|
|
const std::vector<bool> expected_obsolete{false, false, false, false,
|
|
false};
|
|
for (size_t i = 0; i < 5; ++i) {
|
|
const auto &blob_file = blob_files[i];
|
|
ASSERT_EQ(blob_file->GetLinkedSstFiles(), expected_sst_files[i]);
|
|
ASSERT_EQ(blob_file->Obsolete(), expected_obsolete[i]);
|
|
}
|
|
|
|
auto live_imm_files = blob_db_impl()->TEST_GetLiveImmNonTTLFiles();
|
|
ASSERT_EQ(live_imm_files.size(), 5);
|
|
for (size_t i = 0; i < 5; ++i) {
|
|
ASSERT_EQ(live_imm_files[i]->BlobFileNumber(), i + 1);
|
|
}
|
|
|
|
ASSERT_TRUE(blob_db_impl()->TEST_GetObsoleteFiles().empty());
|
|
}
|
|
|
|
// Simulate a flush where the SST does not reference any blob files.
|
|
{
|
|
FlushJobInfo info{};
|
|
info.file_number = 21;
|
|
info.smallest_seqno = 1;
|
|
info.largest_seqno = 100;
|
|
|
|
blob_db_impl()->TEST_ProcessFlushJobInfo(info);
|
|
|
|
const std::vector<std::unordered_set<uint64_t>> expected_sst_files{
|
|
{1, 6}, {2, 7}, {3, 8}, {4, 9}, {5, 10}};
|
|
const std::vector<bool> expected_obsolete{false, false, false, false,
|
|
false};
|
|
for (size_t i = 0; i < 5; ++i) {
|
|
const auto &blob_file = blob_files[i];
|
|
ASSERT_EQ(blob_file->GetLinkedSstFiles(), expected_sst_files[i]);
|
|
ASSERT_EQ(blob_file->Obsolete(), expected_obsolete[i]);
|
|
}
|
|
|
|
auto live_imm_files = blob_db_impl()->TEST_GetLiveImmNonTTLFiles();
|
|
ASSERT_EQ(live_imm_files.size(), 5);
|
|
for (size_t i = 0; i < 5; ++i) {
|
|
ASSERT_EQ(live_imm_files[i]->BlobFileNumber(), i + 1);
|
|
}
|
|
|
|
ASSERT_TRUE(blob_db_impl()->TEST_GetObsoleteFiles().empty());
|
|
}
|
|
|
|
// Simulate a flush where the SST references a blob file.
|
|
{
|
|
FlushJobInfo info{};
|
|
info.file_number = 22;
|
|
info.oldest_blob_file_number = 5;
|
|
info.smallest_seqno = 101;
|
|
info.largest_seqno = 200;
|
|
|
|
blob_db_impl()->TEST_ProcessFlushJobInfo(info);
|
|
|
|
const std::vector<std::unordered_set<uint64_t>> expected_sst_files{
|
|
{1, 6}, {2, 7}, {3, 8}, {4, 9}, {5, 10, 22}};
|
|
const std::vector<bool> expected_obsolete{false, false, false, false,
|
|
false};
|
|
for (size_t i = 0; i < 5; ++i) {
|
|
const auto &blob_file = blob_files[i];
|
|
ASSERT_EQ(blob_file->GetLinkedSstFiles(), expected_sst_files[i]);
|
|
ASSERT_EQ(blob_file->Obsolete(), expected_obsolete[i]);
|
|
}
|
|
|
|
auto live_imm_files = blob_db_impl()->TEST_GetLiveImmNonTTLFiles();
|
|
ASSERT_EQ(live_imm_files.size(), 5);
|
|
for (size_t i = 0; i < 5; ++i) {
|
|
ASSERT_EQ(live_imm_files[i]->BlobFileNumber(), i + 1);
|
|
}
|
|
|
|
ASSERT_TRUE(blob_db_impl()->TEST_GetObsoleteFiles().empty());
|
|
}
|
|
|
|
// Simulate a compaction. Some inputs and outputs have blob file references,
|
|
// some don't. There is also a trivial move (which means the SST appears on
|
|
// both the input and the output list). Blob file 1 loses all its linked SSTs,
|
|
// and since it got marked immutable at sequence number 200 which has already
|
|
// been flushed, it can be marked obsolete.
|
|
{
|
|
CompactionJobInfo info{};
|
|
info.input_file_infos.emplace_back(CompactionFileInfo{1, 1, 1});
|
|
info.input_file_infos.emplace_back(CompactionFileInfo{1, 2, 2});
|
|
info.input_file_infos.emplace_back(CompactionFileInfo{1, 6, 1});
|
|
info.input_file_infos.emplace_back(
|
|
CompactionFileInfo{1, 11, kInvalidBlobFileNumber});
|
|
info.input_file_infos.emplace_back(CompactionFileInfo{1, 22, 5});
|
|
info.output_file_infos.emplace_back(CompactionFileInfo{2, 22, 5});
|
|
info.output_file_infos.emplace_back(CompactionFileInfo{2, 23, 3});
|
|
info.output_file_infos.emplace_back(
|
|
CompactionFileInfo{2, 24, kInvalidBlobFileNumber});
|
|
|
|
blob_db_impl()->TEST_ProcessCompactionJobInfo(info);
|
|
|
|
const std::vector<std::unordered_set<uint64_t>> expected_sst_files{
|
|
{}, {7}, {3, 8, 23}, {4, 9}, {5, 10, 22}};
|
|
const std::vector<bool> expected_obsolete{true, false, false, false, false};
|
|
for (size_t i = 0; i < 5; ++i) {
|
|
const auto &blob_file = blob_files[i];
|
|
ASSERT_EQ(blob_file->GetLinkedSstFiles(), expected_sst_files[i]);
|
|
ASSERT_EQ(blob_file->Obsolete(), expected_obsolete[i]);
|
|
}
|
|
|
|
auto live_imm_files = blob_db_impl()->TEST_GetLiveImmNonTTLFiles();
|
|
ASSERT_EQ(live_imm_files.size(), 4);
|
|
for (size_t i = 0; i < 4; ++i) {
|
|
ASSERT_EQ(live_imm_files[i]->BlobFileNumber(), i + 2);
|
|
}
|
|
|
|
auto obsolete_files = blob_db_impl()->TEST_GetObsoleteFiles();
|
|
ASSERT_EQ(obsolete_files.size(), 1);
|
|
ASSERT_EQ(obsolete_files[0]->BlobFileNumber(), 1);
|
|
}
|
|
|
|
// Simulate a failed compaction. No mappings should be updated.
|
|
{
|
|
CompactionJobInfo info{};
|
|
info.input_file_infos.emplace_back(CompactionFileInfo{1, 7, 2});
|
|
info.input_file_infos.emplace_back(CompactionFileInfo{2, 22, 5});
|
|
info.output_file_infos.emplace_back(CompactionFileInfo{2, 25, 3});
|
|
info.status = Status::Corruption();
|
|
|
|
blob_db_impl()->TEST_ProcessCompactionJobInfo(info);
|
|
|
|
const std::vector<std::unordered_set<uint64_t>> expected_sst_files{
|
|
{}, {7}, {3, 8, 23}, {4, 9}, {5, 10, 22}};
|
|
const std::vector<bool> expected_obsolete{true, false, false, false, false};
|
|
for (size_t i = 0; i < 5; ++i) {
|
|
const auto &blob_file = blob_files[i];
|
|
ASSERT_EQ(blob_file->GetLinkedSstFiles(), expected_sst_files[i]);
|
|
ASSERT_EQ(blob_file->Obsolete(), expected_obsolete[i]);
|
|
}
|
|
|
|
auto live_imm_files = blob_db_impl()->TEST_GetLiveImmNonTTLFiles();
|
|
ASSERT_EQ(live_imm_files.size(), 4);
|
|
for (size_t i = 0; i < 4; ++i) {
|
|
ASSERT_EQ(live_imm_files[i]->BlobFileNumber(), i + 2);
|
|
}
|
|
|
|
auto obsolete_files = blob_db_impl()->TEST_GetObsoleteFiles();
|
|
ASSERT_EQ(obsolete_files.size(), 1);
|
|
ASSERT_EQ(obsolete_files[0]->BlobFileNumber(), 1);
|
|
}
|
|
|
|
// Simulate another compaction. Blob file 2 loses all its linked SSTs
|
|
// but since it got marked immutable at sequence number 300 which hasn't
|
|
// been flushed yet, it cannot be marked obsolete at this point.
|
|
{
|
|
CompactionJobInfo info{};
|
|
info.input_file_infos.emplace_back(CompactionFileInfo{1, 7, 2});
|
|
info.input_file_infos.emplace_back(CompactionFileInfo{2, 22, 5});
|
|
info.output_file_infos.emplace_back(CompactionFileInfo{2, 25, 3});
|
|
|
|
blob_db_impl()->TEST_ProcessCompactionJobInfo(info);
|
|
|
|
const std::vector<std::unordered_set<uint64_t>> expected_sst_files{
|
|
{}, {}, {3, 8, 23, 25}, {4, 9}, {5, 10}};
|
|
const std::vector<bool> expected_obsolete{true, false, false, false, false};
|
|
for (size_t i = 0; i < 5; ++i) {
|
|
const auto &blob_file = blob_files[i];
|
|
ASSERT_EQ(blob_file->GetLinkedSstFiles(), expected_sst_files[i]);
|
|
ASSERT_EQ(blob_file->Obsolete(), expected_obsolete[i]);
|
|
}
|
|
|
|
auto live_imm_files = blob_db_impl()->TEST_GetLiveImmNonTTLFiles();
|
|
ASSERT_EQ(live_imm_files.size(), 4);
|
|
for (size_t i = 0; i < 4; ++i) {
|
|
ASSERT_EQ(live_imm_files[i]->BlobFileNumber(), i + 2);
|
|
}
|
|
|
|
auto obsolete_files = blob_db_impl()->TEST_GetObsoleteFiles();
|
|
ASSERT_EQ(obsolete_files.size(), 1);
|
|
ASSERT_EQ(obsolete_files[0]->BlobFileNumber(), 1);
|
|
}
|
|
|
|
// Simulate a flush with largest sequence number 300. This will make it
|
|
// possible to mark blob file 2 obsolete.
|
|
{
|
|
FlushJobInfo info{};
|
|
info.file_number = 26;
|
|
info.smallest_seqno = 201;
|
|
info.largest_seqno = 300;
|
|
|
|
blob_db_impl()->TEST_ProcessFlushJobInfo(info);
|
|
|
|
const std::vector<std::unordered_set<uint64_t>> expected_sst_files{
|
|
{}, {}, {3, 8, 23, 25}, {4, 9}, {5, 10}};
|
|
const std::vector<bool> expected_obsolete{true, true, false, false, false};
|
|
for (size_t i = 0; i < 5; ++i) {
|
|
const auto &blob_file = blob_files[i];
|
|
ASSERT_EQ(blob_file->GetLinkedSstFiles(), expected_sst_files[i]);
|
|
ASSERT_EQ(blob_file->Obsolete(), expected_obsolete[i]);
|
|
}
|
|
|
|
auto live_imm_files = blob_db_impl()->TEST_GetLiveImmNonTTLFiles();
|
|
ASSERT_EQ(live_imm_files.size(), 3);
|
|
for (size_t i = 0; i < 3; ++i) {
|
|
ASSERT_EQ(live_imm_files[i]->BlobFileNumber(), i + 3);
|
|
}
|
|
|
|
auto obsolete_files = blob_db_impl()->TEST_GetObsoleteFiles();
|
|
ASSERT_EQ(obsolete_files.size(), 2);
|
|
ASSERT_EQ(obsolete_files[0]->BlobFileNumber(), 1);
|
|
ASSERT_EQ(obsolete_files[1]->BlobFileNumber(), 2);
|
|
}
|
|
}
|
|
|
|
TEST_F(BlobDBTest, ShutdownWait) {
|
|
BlobDBOptions bdb_options;
|
|
bdb_options.ttl_range_secs = 100;
|
|
bdb_options.min_blob_size = 0;
|
|
bdb_options.disable_background_tasks = false;
|
|
Options options;
|
|
options.env = mock_env_.get();
|
|
|
|
SyncPoint::GetInstance()->LoadDependency({
|
|
{"BlobDBImpl::EvictExpiredFiles:0", "BlobDBTest.ShutdownWait:0"},
|
|
{"BlobDBTest.ShutdownWait:1", "BlobDBImpl::EvictExpiredFiles:1"},
|
|
{"BlobDBImpl::EvictExpiredFiles:2", "BlobDBTest.ShutdownWait:2"},
|
|
{"BlobDBTest.ShutdownWait:3", "BlobDBImpl::EvictExpiredFiles:3"},
|
|
});
|
|
// Force all tasks to be scheduled immediately.
|
|
SyncPoint::GetInstance()->SetCallBack(
|
|
"TimeQueue::Add:item.end", [&](void *arg) {
|
|
std::chrono::steady_clock::time_point *tp =
|
|
static_cast<std::chrono::steady_clock::time_point *>(arg);
|
|
*tp =
|
|
std::chrono::steady_clock::now() - std::chrono::milliseconds(10000);
|
|
});
|
|
|
|
SyncPoint::GetInstance()->SetCallBack(
|
|
"BlobDBImpl::EvictExpiredFiles:cb", [&](void * /*arg*/) {
|
|
// Sleep 3 ms to increase the chance of data race.
|
|
// We've synced up the code so that EvictExpiredFiles()
|
|
// is called concurrently with ~BlobDBImpl().
|
|
// ~BlobDBImpl() is supposed to wait for all background
|
|
// task to shutdown before doing anything else. In order
|
|
// to use the same test to reproduce a bug of the waiting
|
|
// logic, we wait a little bit here, so that TSAN can
|
|
// catch the data race.
|
|
// We should improve the test if we find a better way.
|
|
Env::Default()->SleepForMicroseconds(3000);
|
|
});
|
|
|
|
SyncPoint::GetInstance()->EnableProcessing();
|
|
|
|
Open(bdb_options, options);
|
|
mock_clock_->SetCurrentTime(50);
|
|
std::map<std::string, std::string> data;
|
|
ASSERT_OK(PutWithTTL("foo", "bar", 100, &data));
|
|
auto blob_files = blob_db_impl()->TEST_GetBlobFiles();
|
|
ASSERT_EQ(1, blob_files.size());
|
|
auto blob_file = blob_files[0];
|
|
ASSERT_FALSE(blob_file->Immutable());
|
|
ASSERT_FALSE(blob_file->Obsolete());
|
|
VerifyDB(data);
|
|
|
|
TEST_SYNC_POINT("BlobDBTest.ShutdownWait:0");
|
|
mock_clock_->SetCurrentTime(250);
|
|
// The key should expired now.
|
|
TEST_SYNC_POINT("BlobDBTest.ShutdownWait:1");
|
|
|
|
TEST_SYNC_POINT("BlobDBTest.ShutdownWait:2");
|
|
TEST_SYNC_POINT("BlobDBTest.ShutdownWait:3");
|
|
Close();
|
|
|
|
SyncPoint::GetInstance()->DisableProcessing();
|
|
}
|
|
|
|
TEST_F(BlobDBTest, SyncBlobFileBeforeClose) {
|
|
Options options;
|
|
options.statistics = CreateDBStatistics();
|
|
|
|
BlobDBOptions blob_options;
|
|
blob_options.min_blob_size = 0;
|
|
blob_options.bytes_per_sync = 1 << 20;
|
|
blob_options.disable_background_tasks = true;
|
|
|
|
Open(blob_options, options);
|
|
|
|
ASSERT_OK(Put("foo", "bar"));
|
|
|
|
auto blob_files = blob_db_impl()->TEST_GetBlobFiles();
|
|
ASSERT_EQ(blob_files.size(), 1);
|
|
|
|
ASSERT_OK(blob_db_impl()->TEST_CloseBlobFile(blob_files[0]));
|
|
ASSERT_EQ(options.statistics->getTickerCount(BLOB_DB_BLOB_FILE_SYNCED), 1);
|
|
}
|
|
|
|
TEST_F(BlobDBTest, SyncBlobFileBeforeCloseIOError) {
|
|
Options options;
|
|
options.env = fault_injection_env_.get();
|
|
|
|
BlobDBOptions blob_options;
|
|
blob_options.min_blob_size = 0;
|
|
blob_options.bytes_per_sync = 1 << 20;
|
|
blob_options.disable_background_tasks = true;
|
|
|
|
Open(blob_options, options);
|
|
|
|
ASSERT_OK(Put("foo", "bar"));
|
|
|
|
auto blob_files = blob_db_impl()->TEST_GetBlobFiles();
|
|
ASSERT_EQ(blob_files.size(), 1);
|
|
|
|
SyncPoint::GetInstance()->SetCallBack(
|
|
"BlobLogWriter::Sync", [this](void * /* arg */) {
|
|
fault_injection_env_->SetFilesystemActive(false, Status::IOError());
|
|
});
|
|
SyncPoint::GetInstance()->EnableProcessing();
|
|
|
|
const Status s = blob_db_impl()->TEST_CloseBlobFile(blob_files[0]);
|
|
|
|
fault_injection_env_->SetFilesystemActive(true);
|
|
SyncPoint::GetInstance()->DisableProcessing();
|
|
SyncPoint::GetInstance()->ClearAllCallBacks();
|
|
|
|
ASSERT_TRUE(s.IsIOError());
|
|
}
|
|
|
|
} // namespace blob_db
|
|
} // namespace ROCKSDB_NAMESPACE
|
|
|
|
// A black-box test for the ttl wrapper around rocksdb
|
|
int main(int argc, char** argv) {
|
|
::testing::InitGoogleTest(&argc, argv);
|
|
return RUN_ALL_TESTS();
|
|
}
|
|
|
|
#else
|
|
#include <stdio.h>
|
|
|
|
int main(int /*argc*/, char** /*argv*/) {
|
|
fprintf(stderr, "SKIPPED as BlobDB is not supported in ROCKSDB_LITE\n");
|
|
return 0;
|
|
}
|
|
|
|
#endif // !ROCKSDB_LITE
|
|
|