462ed70d64
Summary: `GetLiveFiles` and `GetLiveFilesMetadata` should return path relative to db path. It is a separate issue when `path_relative` is false how can we return relative path. But `DBImpl::GetLiveFiles` don't handle it as well when there are multiple `db_paths`. Pull Request resolved: https://github.com/facebook/rocksdb/pull/4326 Differential Revision: D9545904 Pulled By: yiwu-arbug fbshipit-source-id: 6762d879fcb561df2b612e6fdfb4a6b51db03f5d
1484 lines
51 KiB
C++
1484 lines
51 KiB
C++
// 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 <algorithm>
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#include <cstdlib>
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#include <map>
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#include <memory>
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#include <string>
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#include <vector>
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#include "db/db_test_util.h"
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#include "port/port.h"
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#include "rocksdb/utilities/debug.h"
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#include "util/cast_util.h"
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#include "util/random.h"
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#include "util/string_util.h"
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#include "util/sync_point.h"
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#include "util/testharness.h"
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#include "utilities/blob_db/blob_db.h"
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#include "utilities/blob_db/blob_db_impl.h"
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#include "utilities/blob_db/blob_index.h"
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namespace rocksdb {
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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 BlobRecord {
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std::string key;
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std::string value;
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uint64_t expiration = 0;
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};
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BlobDBTest()
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: dbname_(test::PerThreadDBPath("blob_db_test")),
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mock_env_(new MockTimeEnv(Env::Default())),
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blob_db_(nullptr) {
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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() {
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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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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 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 = test::RandomHumanReadableString(rnd, 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 = test::RandomHumanReadableString(rnd, 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 = test::RandomHumanReadableString(rnd, 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 = test::RandomHumanReadableString(rnd, 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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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 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::unique_ptr<MockTimeEnv> mock_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_env_->set_current_time(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_env_->set_current_time(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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GCStats gc_stats;
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ASSERT_OK(bdb_impl->TEST_GCFileAndUpdateLSM(blob_files[0], &gc_stats));
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ASSERT_EQ(100 - data.size(), gc_stats.num_keys_expired);
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ASSERT_EQ(data.size(), gc_stats.num_keys_relocated);
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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_env_->set_current_time(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_env_->set_current_time(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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GCStats gc_stats;
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ASSERT_OK(bdb_impl->TEST_GCFileAndUpdateLSM(blob_files[0], &gc_stats));
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ASSERT_EQ(100 - data.size(), gc_stats.num_keys_expired);
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ASSERT_EQ(data.size(), gc_stats.num_keys_relocated);
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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_env_->set_current_time(100);
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Open(bdb_options, options);
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Put("key1", "value1");
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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, 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);
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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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WriteBatch batch;
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for (size_t j = 0; j < 10; j++) {
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PutRandomToWriteBatch("key" + ToString(j * 100 + i), &rnd, &batch, &data);
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}
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blob_db_->Write(WriteOptions(), &batch);
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}
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VerifyDB(data);
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}
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TEST_F(BlobDBTest, Delete) {
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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 += 5) {
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Delete("key" + ToString(i), &data);
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}
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VerifyDB(data);
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}
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TEST_F(BlobDBTest, DeleteBatch) {
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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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for (size_t i = 0; i < 100; i++) {
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PutRandom("key" + ToString(i), &rnd);
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}
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WriteBatch batch;
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for (size_t i = 0; i < 100; i++) {
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batch.Delete("key" + ToString(i));
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}
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ASSERT_OK(blob_db_->Write(WriteOptions(), &batch));
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// DB should be empty.
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VerifyDB({});
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}
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TEST_F(BlobDBTest, Override) {
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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 (int i = 0; i < 10000; i++) {
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PutRandom("key" + ToString(i), &rnd, nullptr);
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}
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// override all the keys
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for (int i = 0; i < 10000; 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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#ifdef SNAPPY
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TEST_F(BlobDBTest, Compression) {
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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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bdb_options.compression = CompressionType::kSnappyCompression;
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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("put-key" + ToString(i), &rnd, &data);
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}
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for (int i = 0; i < 100; i++) {
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WriteBatch batch;
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for (size_t j = 0; j < 10; j++) {
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PutRandomToWriteBatch("write-batch-key" + ToString(j * 100 + i), &rnd,
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&batch, &data);
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}
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blob_db_->Write(WriteOptions(), &batch);
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}
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VerifyDB(data);
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}
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TEST_F(BlobDBTest, DecompressAfterReopen) {
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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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bdb_options.compression = CompressionType::kSnappyCompression;
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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("put-key" + ToString(i), &rnd, &data);
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}
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VerifyDB(data);
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bdb_options.compression = CompressionType::kNoCompression;
|
|
Reopen(bdb_options);
|
|
VerifyDB(data);
|
|
}
|
|
|
|
#endif
|
|
|
|
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]);
|
|
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, GCAfterOverwriteKeys) {
|
|
Random rnd(301);
|
|
BlobDBOptions bdb_options;
|
|
bdb_options.min_blob_size = 0;
|
|
bdb_options.disable_background_tasks = true;
|
|
Open(bdb_options);
|
|
DBImpl *db_impl = static_cast_with_check<DBImpl, DB>(blob_db_->GetBaseDB());
|
|
std::map<std::string, std::string> data;
|
|
for (int i = 0; i < 200; i++) {
|
|
PutRandom("key" + ToString(i), &rnd, &data);
|
|
}
|
|
auto blob_files = blob_db_impl()->TEST_GetBlobFiles();
|
|
ASSERT_EQ(1, blob_files.size());
|
|
ASSERT_OK(blob_db_impl()->TEST_CloseBlobFile(blob_files[0]));
|
|
// Test for data in SST
|
|
size_t new_keys = 0;
|
|
for (int i = 0; i < 100; i++) {
|
|
if (rnd.Next() % 2 == 1) {
|
|
new_keys++;
|
|
PutRandom("key" + ToString(i), &rnd, &data);
|
|
}
|
|
}
|
|
db_impl->TEST_FlushMemTable(true /*wait*/);
|
|
// Test for data in memtable
|
|
for (int i = 100; i < 200; i++) {
|
|
if (rnd.Next() % 2 == 1) {
|
|
new_keys++;
|
|
PutRandom("key" + ToString(i), &rnd, &data);
|
|
}
|
|
}
|
|
GCStats gc_stats;
|
|
ASSERT_OK(blob_db_impl()->TEST_GCFileAndUpdateLSM(blob_files[0], &gc_stats));
|
|
ASSERT_EQ(200, gc_stats.blob_count);
|
|
ASSERT_EQ(0, gc_stats.num_keys_expired);
|
|
ASSERT_EQ(200 - new_keys, gc_stats.num_keys_relocated);
|
|
VerifyDB(data);
|
|
}
|
|
|
|
TEST_F(BlobDBTest, GCRelocateKeyWhileOverwriting) {
|
|
Random rnd(301);
|
|
BlobDBOptions bdb_options;
|
|
bdb_options.min_blob_size = 0;
|
|
bdb_options.disable_background_tasks = true;
|
|
Open(bdb_options);
|
|
ASSERT_OK(blob_db_->Put(WriteOptions(), "foo", "v1"));
|
|
auto blob_files = blob_db_impl()->TEST_GetBlobFiles();
|
|
ASSERT_EQ(1, blob_files.size());
|
|
ASSERT_OK(blob_db_impl()->TEST_CloseBlobFile(blob_files[0]));
|
|
|
|
SyncPoint::GetInstance()->LoadDependency(
|
|
{{"BlobDBImpl::GCFileAndUpdateLSM:AfterGetFromBaseDB",
|
|
"BlobDBImpl::PutUntil:Start"},
|
|
{"BlobDBImpl::PutUntil:Finish",
|
|
"BlobDBImpl::GCFileAndUpdateLSM:BeforeRelocate"}});
|
|
SyncPoint::GetInstance()->EnableProcessing();
|
|
|
|
auto writer = port::Thread(
|
|
[this]() { ASSERT_OK(blob_db_->Put(WriteOptions(), "foo", "v2")); });
|
|
|
|
GCStats gc_stats;
|
|
ASSERT_OK(blob_db_impl()->TEST_GCFileAndUpdateLSM(blob_files[0], &gc_stats));
|
|
ASSERT_EQ(1, gc_stats.blob_count);
|
|
ASSERT_EQ(0, gc_stats.num_keys_expired);
|
|
ASSERT_EQ(1, gc_stats.num_keys_overwritten);
|
|
ASSERT_EQ(0, gc_stats.num_keys_relocated);
|
|
writer.join();
|
|
VerifyDB({{"foo", "v2"}});
|
|
}
|
|
|
|
TEST_F(BlobDBTest, GCExpiredKeyWhileOverwriting) {
|
|
Random rnd(301);
|
|
Options options;
|
|
options.env = mock_env_.get();
|
|
BlobDBOptions bdb_options;
|
|
bdb_options.min_blob_size = 0;
|
|
bdb_options.disable_background_tasks = true;
|
|
Open(bdb_options, options);
|
|
mock_env_->set_current_time(100);
|
|
ASSERT_OK(blob_db_->PutUntil(WriteOptions(), "foo", "v1", 200));
|
|
auto blob_files = blob_db_impl()->TEST_GetBlobFiles();
|
|
ASSERT_EQ(1, blob_files.size());
|
|
ASSERT_OK(blob_db_impl()->TEST_CloseBlobFile(blob_files[0]));
|
|
mock_env_->set_current_time(300);
|
|
|
|
SyncPoint::GetInstance()->LoadDependency(
|
|
{{"BlobDBImpl::GCFileAndUpdateLSM:AfterGetFromBaseDB",
|
|
"BlobDBImpl::PutUntil:Start"},
|
|
{"BlobDBImpl::PutUntil:Finish",
|
|
"BlobDBImpl::GCFileAndUpdateLSM:BeforeDelete"}});
|
|
SyncPoint::GetInstance()->EnableProcessing();
|
|
|
|
auto writer = port::Thread([this]() {
|
|
ASSERT_OK(blob_db_->PutUntil(WriteOptions(), "foo", "v2", 400));
|
|
});
|
|
|
|
GCStats gc_stats;
|
|
ASSERT_OK(blob_db_impl()->TEST_GCFileAndUpdateLSM(blob_files[0], &gc_stats));
|
|
ASSERT_EQ(1, gc_stats.blob_count);
|
|
ASSERT_EQ(1, gc_stats.num_keys_expired);
|
|
ASSERT_EQ(0, gc_stats.num_keys_relocated);
|
|
writer.join();
|
|
VerifyDB({{"foo", "v2"}});
|
|
}
|
|
|
|
TEST_F(BlobDBTest, NewFileGeneratedFromGCShouldMarkAsImmutable) {
|
|
BlobDBOptions bdb_options;
|
|
bdb_options.min_blob_size = 0;
|
|
bdb_options.disable_background_tasks = true;
|
|
Open(bdb_options);
|
|
ASSERT_OK(Put("foo", "bar"));
|
|
auto blob_files = blob_db_impl()->TEST_GetBlobFiles();
|
|
auto blob_file1 = blob_files[0];
|
|
ASSERT_EQ(1, blob_files.size());
|
|
ASSERT_OK(blob_db_impl()->TEST_CloseBlobFile(blob_file1));
|
|
GCStats gc_stats;
|
|
ASSERT_OK(blob_db_impl()->TEST_GCFileAndUpdateLSM(blob_file1, &gc_stats));
|
|
ASSERT_EQ(1, gc_stats.blob_count);
|
|
ASSERT_EQ(1, gc_stats.num_keys_relocated);
|
|
blob_files = blob_db_impl()->TEST_GetBlobFiles();
|
|
ASSERT_EQ(2, blob_files.size());
|
|
ASSERT_EQ(blob_file1, blob_files[0]);
|
|
ASSERT_TRUE(blob_files[1]->Immutable());
|
|
}
|
|
|
|
// This test is no longer valid since we now return an error when we go
|
|
// over the configured max_db_size.
|
|
// The test needs to be re-written later in such a way that writes continue
|
|
// after a GC happens.
|
|
TEST_F(BlobDBTest, DISABLED_GCOldestSimpleBlobFileWhenOutOfSpace) {
|
|
// Use mock env to stop wall clock.
|
|
Options options;
|
|
options.env = mock_env_.get();
|
|
BlobDBOptions bdb_options;
|
|
bdb_options.max_db_size = 100;
|
|
bdb_options.blob_file_size = 100;
|
|
bdb_options.min_blob_size = 0;
|
|
bdb_options.disable_background_tasks = true;
|
|
Open(bdb_options);
|
|
std::string value(100, 'v');
|
|
ASSERT_OK(blob_db_->PutWithTTL(WriteOptions(), "key_with_ttl", value, 60));
|
|
for (int i = 0; i < 10; i++) {
|
|
ASSERT_OK(blob_db_->Put(WriteOptions(), "key" + ToString(i), value));
|
|
}
|
|
auto blob_files = blob_db_impl()->TEST_GetBlobFiles();
|
|
ASSERT_EQ(11, blob_files.size());
|
|
ASSERT_TRUE(blob_files[0]->HasTTL());
|
|
ASSERT_TRUE(blob_files[0]->Immutable());
|
|
for (int i = 1; i <= 10; i++) {
|
|
ASSERT_FALSE(blob_files[i]->HasTTL());
|
|
if (i < 10) {
|
|
ASSERT_TRUE(blob_files[i]->Immutable());
|
|
}
|
|
}
|
|
blob_db_impl()->TEST_RunGC();
|
|
// The oldest simple blob file (i.e. blob_files[1]) has been selected for GC.
|
|
auto obsolete_files = blob_db_impl()->TEST_GetObsoleteFiles();
|
|
ASSERT_EQ(1, obsolete_files.size());
|
|
ASSERT_EQ(blob_files[1]->BlobFileNumber(),
|
|
obsolete_files[0]->BlobFileNumber());
|
|
}
|
|
|
|
TEST_F(BlobDBTest, ReadWhileGC) {
|
|
// run the same test for Get(), MultiGet() and Iterator each.
|
|
for (int i = 0; i < 2; i++) {
|
|
BlobDBOptions bdb_options;
|
|
bdb_options.min_blob_size = 0;
|
|
bdb_options.disable_background_tasks = true;
|
|
Open(bdb_options);
|
|
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];
|
|
uint64_t bfile_number = bfile->BlobFileNumber();
|
|
ASSERT_OK(blob_db_impl()->TEST_CloseBlobFile(bfile));
|
|
|
|
switch (i) {
|
|
case 0:
|
|
SyncPoint::GetInstance()->LoadDependency(
|
|
{{"BlobDBImpl::Get:AfterIndexEntryGet:1",
|
|
"BlobDBTest::ReadWhileGC:1"},
|
|
{"BlobDBTest::ReadWhileGC:2",
|
|
"BlobDBImpl::Get:AfterIndexEntryGet:2"}});
|
|
break;
|
|
case 1:
|
|
SyncPoint::GetInstance()->LoadDependency(
|
|
{{"BlobDBIterator::UpdateBlobValue:Start:1",
|
|
"BlobDBTest::ReadWhileGC:1"},
|
|
{"BlobDBTest::ReadWhileGC:2",
|
|
"BlobDBIterator::UpdateBlobValue:Start:2"}});
|
|
break;
|
|
}
|
|
SyncPoint::GetInstance()->EnableProcessing();
|
|
|
|
auto reader = port::Thread([this, i]() {
|
|
std::string value;
|
|
std::vector<std::string> values;
|
|
std::vector<Status> statuses;
|
|
switch (i) {
|
|
case 0:
|
|
ASSERT_OK(blob_db_->Get(ReadOptions(), "foo", &value));
|
|
ASSERT_EQ("bar", value);
|
|
break;
|
|
case 1:
|
|
// VerifyDB use iterator to scan the DB.
|
|
VerifyDB({{"foo", "bar"}});
|
|
break;
|
|
}
|
|
});
|
|
|
|
TEST_SYNC_POINT("BlobDBTest::ReadWhileGC:1");
|
|
GCStats gc_stats;
|
|
ASSERT_OK(blob_db_impl()->TEST_GCFileAndUpdateLSM(bfile, &gc_stats));
|
|
ASSERT_EQ(1, gc_stats.blob_count);
|
|
ASSERT_EQ(1, gc_stats.num_keys_relocated);
|
|
blob_db_impl()->TEST_DeleteObsoleteFiles();
|
|
// The file shouln't be deleted
|
|
blob_files = blob_db_impl()->TEST_GetBlobFiles();
|
|
ASSERT_EQ(2, blob_files.size());
|
|
ASSERT_EQ(bfile_number, blob_files[0]->BlobFileNumber());
|
|
auto obsolete_files = blob_db_impl()->TEST_GetObsoleteFiles();
|
|
ASSERT_EQ(1, obsolete_files.size());
|
|
ASSERT_EQ(bfile_number, obsolete_files[0]->BlobFileNumber());
|
|
TEST_SYNC_POINT("BlobDBTest::ReadWhileGC:2");
|
|
reader.join();
|
|
SyncPoint::GetInstance()->DisableProcessing();
|
|
|
|
// The file is deleted this time
|
|
blob_db_impl()->TEST_DeleteObsoleteFiles();
|
|
blob_files = blob_db_impl()->TEST_GetBlobFiles();
|
|
ASSERT_EQ(1, blob_files.size());
|
|
ASSERT_NE(bfile_number, blob_files[0]->BlobFileNumber());
|
|
ASSERT_EQ(0, blob_db_impl()->TEST_GetObsoleteFiles().size());
|
|
VerifyDB({{"foo", "bar"}});
|
|
Destroy();
|
|
}
|
|
}
|
|
|
|
TEST_F(BlobDBTest, SnapshotAndGarbageCollection) {
|
|
BlobDBOptions bdb_options;
|
|
bdb_options.min_blob_size = 0;
|
|
bdb_options.disable_background_tasks = true;
|
|
// i = when to take snapshot
|
|
for (int i = 0; i < 4; i++) {
|
|
for (bool delete_key : {true, false}) {
|
|
const Snapshot *snapshot = nullptr;
|
|
Destroy();
|
|
Open(bdb_options);
|
|
// 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();
|
|
}
|
|
if (delete_key) {
|
|
Delete("key2");
|
|
}
|
|
GCStats gc_stats;
|
|
ASSERT_OK(blob_db_impl()->TEST_GCFileAndUpdateLSM(bfile, &gc_stats));
|
|
ASSERT_TRUE(bfile->Obsolete());
|
|
ASSERT_EQ(1, gc_stats.blob_count);
|
|
if (delete_key) {
|
|
ASSERT_EQ(0, gc_stats.num_keys_relocated);
|
|
} else {
|
|
ASSERT_EQ(1, gc_stats.num_keys_relocated);
|
|
}
|
|
ASSERT_EQ(blob_db_->GetLatestSequenceNumber(),
|
|
bfile->GetObsoleteSequence());
|
|
if (i == 3) {
|
|
snapshot = blob_db_->GetSnapshot();
|
|
}
|
|
size_t num_files = delete_key ? 3 : 4;
|
|
ASSERT_EQ(num_files, blob_db_impl()->TEST_GetBlobFiles().size());
|
|
blob_db_impl()->TEST_DeleteObsoleteFiles();
|
|
if (i == 3) {
|
|
// The snapshot shouldn't see data in bfile
|
|
ASSERT_EQ(num_files - 1, 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(num_files, blob_db_impl()->TEST_GetBlobFiles().size());
|
|
blob_db_->ReleaseSnapshot(snapshot);
|
|
blob_db_impl()->TEST_DeleteObsoleteFiles();
|
|
ASSERT_EQ(num_files - 1, blob_db_impl()->TEST_GetBlobFiles().size());
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
TEST_F(BlobDBTest, ColumnFamilyNotSupported) {
|
|
Options options;
|
|
options.env = mock_env_.get();
|
|
mock_env_->set_current_time(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;
|
|
batch.Put("k1", "v1");
|
|
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.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);
|
|
}
|
|
std::vector<LiveFileMetaData> metadata;
|
|
blob_db_->GetLiveFilesMetaData(&metadata);
|
|
ASSERT_EQ(1U, metadata.size());
|
|
// Path should be relative to db_name, but begin with slash.
|
|
std::string filename = "/blob_dir/000001.blob";
|
|
ASSERT_EQ(filename, metadata[0].name);
|
|
ASSERT_EQ("default", metadata[0].column_family_name);
|
|
std::vector<std::string> livefile;
|
|
uint64_t mfs;
|
|
ASSERT_OK(blob_db_->GetLiveFiles(livefile, &mfs, false));
|
|
ASSERT_EQ(4U, livefile.size());
|
|
ASSERT_EQ(filename, livefile[3]);
|
|
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.IsNotSupported());
|
|
} 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_env_->set_current_time(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 = test::RandomHumanReadableString(&rnd, 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, CompactionFilterNotSupported) {
|
|
class TestCompactionFilter : public CompactionFilter {
|
|
virtual const char *Name() const { return "TestCompactionFilter"; }
|
|
};
|
|
class TestCompactionFilterFactory : public CompactionFilterFactory {
|
|
virtual const char *Name() const { return "TestCompactionFilterFactory"; }
|
|
virtual std::unique_ptr<CompactionFilter> CreateCompactionFilter(
|
|
const CompactionFilter::Context & /*context*/) {
|
|
return std::unique_ptr<CompactionFilter>(new TestCompactionFilter());
|
|
}
|
|
};
|
|
for (int i = 0; i < 2; i++) {
|
|
Options options;
|
|
if (i == 0) {
|
|
options.compaction_filter = new TestCompactionFilter();
|
|
} else {
|
|
options.compaction_filter_factory.reset(
|
|
new TestCompactionFilterFactory());
|
|
}
|
|
ASSERT_TRUE(TryOpen(BlobDBOptions(), options).IsNotSupported());
|
|
delete options.compaction_filter;
|
|
}
|
|
}
|
|
|
|
// 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_env_->set_current_time(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 = test::RandomHumanReadableString(&rnd, 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_env_->set_current_time(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(),
|
|
blob_db_->DefaultColumnFamily(), nullptr,
|
|
nullptr));
|
|
blob_db_->ReleaseSnapshot(snapshot);
|
|
// Verify expired blob index are filtered.
|
|
std::vector<KeyVersion> versions;
|
|
const size_t kMaxKeys = 10000;
|
|
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 (either by FIFO or garbage collection).
|
|
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_->Flush(FlushOptions()));
|
|
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_env_->set_current_time(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 = test::RandomHumanReadableString(&rnd, 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);
|
|
}
|
|
|
|
// 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_env_->set_current_time(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_env_->set_current_time(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({});
|
|
}
|
|
}
|
|
|
|
} // namespace blob_db
|
|
} // namespace rocksdb
|
|
|
|
// 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
|