fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph
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565 lines
18 KiB
565 lines
18 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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//
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// Copyright 2014 The LevelDB Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file. See the AUTHORS file for names of contributors.
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// This test uses a custom Env to keep track of the state of a filesystem as of
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// the last "sync". It then checks for data loss errors by purposely dropping
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// file data (or entire files) not protected by a "sync".
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#include "db/db_impl/db_impl.h"
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#include "db/log_format.h"
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#include "db/version_set.h"
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#include "env/mock_env.h"
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#include "file/filename.h"
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#include "rocksdb/cache.h"
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#include "rocksdb/convenience.h"
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#include "rocksdb/db.h"
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#include "rocksdb/env.h"
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#include "rocksdb/table.h"
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#include "rocksdb/write_batch.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 "test_util/testutil.h"
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#include "util/mutexlock.h"
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#include "util/random.h"
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#include "utilities/fault_injection_env.h"
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namespace ROCKSDB_NAMESPACE {
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static const int kValueSize = 1000;
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static const int kMaxNumValues = 2000;
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static const size_t kNumIterations = 3;
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enum FaultInjectionOptionConfig {
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kDefault,
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kDifferentDataDir,
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kWalDir,
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kSyncWal,
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kWalDirSyncWal,
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kMultiLevels,
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kEnd,
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};
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class FaultInjectionTest
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: public testing::Test,
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public testing::WithParamInterface<std::tuple<
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bool, FaultInjectionOptionConfig, FaultInjectionOptionConfig>> {
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protected:
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int option_config_;
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int non_inclusive_end_range_; // kEnd or equivalent to that
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// When need to make sure data is persistent, sync WAL
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bool sync_use_wal_;
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// When need to make sure data is persistent, call DB::CompactRange()
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bool sync_use_compact_;
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bool sequential_order_;
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protected:
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public:
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enum ExpectedVerifResult { kValExpectFound, kValExpectNoError };
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enum ResetMethod {
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kResetDropUnsyncedData,
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kResetDropRandomUnsyncedData,
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kResetDeleteUnsyncedFiles,
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kResetDropAndDeleteUnsynced
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};
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std::unique_ptr<Env> base_env_;
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FaultInjectionTestEnv* env_;
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std::string dbname_;
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std::shared_ptr<Cache> tiny_cache_;
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Options options_;
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DB* db_;
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FaultInjectionTest()
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: option_config_(std::get<1>(GetParam())),
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non_inclusive_end_range_(std::get<2>(GetParam())),
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sync_use_wal_(false),
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sync_use_compact_(true),
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base_env_(nullptr),
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env_(nullptr),
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db_(nullptr) {
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EXPECT_OK(
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test::CreateEnvFromSystem(ConfigOptions(), &system_env_, &env_guard_));
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EXPECT_NE(system_env_, nullptr);
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}
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~FaultInjectionTest() override {
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ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
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ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->ClearAllCallBacks();
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}
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bool ChangeOptions() {
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option_config_++;
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if (option_config_ >= non_inclusive_end_range_) {
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return false;
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} else {
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if (option_config_ == kMultiLevels) {
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base_env_.reset(MockEnv::Create(system_env_));
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}
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return true;
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}
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}
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// Return the current option configuration.
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Options CurrentOptions() {
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sync_use_wal_ = false;
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sync_use_compact_ = true;
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Options options;
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switch (option_config_) {
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case kWalDir:
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options.wal_dir = test::PerThreadDBPath(env_, "fault_test_wal");
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break;
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case kDifferentDataDir:
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options.db_paths.emplace_back(
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test::PerThreadDBPath(env_, "fault_test_data"), 1000000U);
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break;
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case kSyncWal:
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sync_use_wal_ = true;
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sync_use_compact_ = false;
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break;
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case kWalDirSyncWal:
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options.wal_dir = test::PerThreadDBPath(env_, "/fault_test_wal");
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sync_use_wal_ = true;
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sync_use_compact_ = false;
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break;
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case kMultiLevels:
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options.write_buffer_size = 64 * 1024;
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options.target_file_size_base = 64 * 1024;
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options.level0_file_num_compaction_trigger = 2;
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options.level0_slowdown_writes_trigger = 2;
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options.level0_stop_writes_trigger = 4;
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options.max_bytes_for_level_base = 128 * 1024;
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options.max_write_buffer_number = 2;
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options.max_background_compactions = 8;
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options.max_background_flushes = 8;
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sync_use_wal_ = true;
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sync_use_compact_ = false;
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break;
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default:
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break;
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}
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return options;
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}
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Status NewDB() {
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assert(db_ == nullptr);
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assert(tiny_cache_ == nullptr);
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assert(env_ == nullptr);
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env_ = new FaultInjectionTestEnv(base_env_ ? base_env_.get() : system_env_);
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options_ = CurrentOptions();
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options_.env = env_;
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options_.paranoid_checks = true;
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BlockBasedTableOptions table_options;
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tiny_cache_ = NewLRUCache(100);
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table_options.block_cache = tiny_cache_;
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options_.table_factory.reset(NewBlockBasedTableFactory(table_options));
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dbname_ = test::PerThreadDBPath("fault_test");
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EXPECT_OK(DestroyDB(dbname_, options_));
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options_.create_if_missing = true;
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Status s = OpenDB();
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options_.create_if_missing = false;
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return s;
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}
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void SetUp() override {
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sequential_order_ = std::get<0>(GetParam());
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ASSERT_OK(NewDB());
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}
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void TearDown() override {
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CloseDB();
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Status s = DestroyDB(dbname_, options_);
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delete env_;
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env_ = nullptr;
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tiny_cache_.reset();
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ASSERT_OK(s);
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}
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void Build(const WriteOptions& write_options, int start_idx, int num_vals) {
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std::string key_space, value_space;
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WriteBatch batch;
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for (int i = start_idx; i < start_idx + num_vals; i++) {
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Slice key = Key(i, &key_space);
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batch.Clear();
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ASSERT_OK(batch.Put(key, Value(i, &value_space)));
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ASSERT_OK(db_->Write(write_options, &batch));
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}
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}
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Status ReadValue(int i, std::string* val) const {
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std::string key_space, value_space;
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Slice key = Key(i, &key_space);
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Value(i, &value_space);
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ReadOptions options;
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return db_->Get(options, key, val);
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}
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Status Verify(int start_idx, int num_vals,
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ExpectedVerifResult expected) const {
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std::string val;
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std::string value_space;
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Status s;
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for (int i = start_idx; i < start_idx + num_vals && s.ok(); i++) {
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Value(i, &value_space);
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s = ReadValue(i, &val);
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if (s.ok()) {
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EXPECT_EQ(value_space, val);
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}
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if (expected == kValExpectFound) {
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if (!s.ok()) {
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fprintf(stderr, "Error when read %dth record (expect found): %s\n", i,
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s.ToString().c_str());
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return s;
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}
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} else if (!s.ok() && !s.IsNotFound()) {
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fprintf(stderr, "Error when read %dth record: %s\n", i,
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s.ToString().c_str());
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return s;
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}
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}
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return Status::OK();
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}
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// Return the ith key
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Slice Key(int i, std::string* storage) const {
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unsigned long long num = i;
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if (!sequential_order_) {
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// random transfer
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const int m = 0x5bd1e995;
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num *= m;
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num ^= num << 24;
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}
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char buf[100];
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snprintf(buf, sizeof(buf), "%016d", static_cast<int>(num));
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storage->assign(buf, strlen(buf));
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return Slice(*storage);
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}
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// Return the value to associate with the specified key
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Slice Value(int k, std::string* storage) const {
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Random r(k);
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*storage = r.RandomString(kValueSize);
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return Slice(*storage);
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}
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void CloseDB() {
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delete db_;
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db_ = nullptr;
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}
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Status OpenDB() {
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CloseDB();
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env_->ResetState();
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Status s = DB::Open(options_, dbname_, &db_);
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assert(db_ != nullptr);
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return s;
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}
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void DeleteAllData() {
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Iterator* iter = db_->NewIterator(ReadOptions());
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WriteOptions options;
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for (iter->SeekToFirst(); iter->Valid(); iter->Next()) {
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ASSERT_OK(db_->Delete(WriteOptions(), iter->key()));
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}
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ASSERT_OK(iter->status());
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delete iter;
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FlushOptions flush_options;
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flush_options.wait = true;
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ASSERT_OK(db_->Flush(flush_options));
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}
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// rnd cannot be null for kResetDropRandomUnsyncedData
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void ResetDBState(ResetMethod reset_method, Random* rnd = nullptr) {
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env_->AssertNoOpenFile();
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switch (reset_method) {
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case kResetDropUnsyncedData:
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ASSERT_OK(env_->DropUnsyncedFileData());
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break;
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case kResetDropRandomUnsyncedData:
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ASSERT_OK(env_->DropRandomUnsyncedFileData(rnd));
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break;
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case kResetDeleteUnsyncedFiles:
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ASSERT_OK(env_->DeleteFilesCreatedAfterLastDirSync());
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break;
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case kResetDropAndDeleteUnsynced:
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ASSERT_OK(env_->DropUnsyncedFileData());
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ASSERT_OK(env_->DeleteFilesCreatedAfterLastDirSync());
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break;
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default:
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assert(false);
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}
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}
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void PartialCompactTestPreFault(int num_pre_sync, int num_post_sync) {
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DeleteAllData();
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WriteOptions write_options;
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write_options.sync = sync_use_wal_;
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Build(write_options, 0, num_pre_sync);
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if (sync_use_compact_) {
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ASSERT_OK(db_->CompactRange(CompactRangeOptions(), nullptr, nullptr));
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}
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write_options.sync = false;
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Build(write_options, num_pre_sync, num_post_sync);
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}
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void PartialCompactTestReopenWithFault(ResetMethod reset_method,
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int num_pre_sync, int num_post_sync,
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Random* rnd = nullptr) {
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env_->SetFilesystemActive(false);
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CloseDB();
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ResetDBState(reset_method, rnd);
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ASSERT_OK(OpenDB());
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ASSERT_OK(Verify(0, num_pre_sync, FaultInjectionTest::kValExpectFound));
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ASSERT_OK(Verify(num_pre_sync, num_post_sync,
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FaultInjectionTest::kValExpectNoError));
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WaitCompactionFinish();
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ASSERT_OK(Verify(0, num_pre_sync, FaultInjectionTest::kValExpectFound));
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ASSERT_OK(Verify(num_pre_sync, num_post_sync,
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FaultInjectionTest::kValExpectNoError));
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}
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void NoWriteTestPreFault() {
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}
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void NoWriteTestReopenWithFault(ResetMethod reset_method) {
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CloseDB();
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ResetDBState(reset_method);
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ASSERT_OK(OpenDB());
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}
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void WaitCompactionFinish() {
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ASSERT_OK(static_cast<DBImpl*>(db_->GetRootDB())->TEST_WaitForCompact());
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ASSERT_OK(db_->Put(WriteOptions(), "", ""));
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}
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private:
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Env* system_env_;
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std::shared_ptr<Env> env_guard_;
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};
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class FaultInjectionTestSplitted : public FaultInjectionTest {};
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TEST_P(FaultInjectionTestSplitted, FaultTest) {
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do {
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Random rnd(301);
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for (size_t idx = 0; idx < kNumIterations; idx++) {
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int num_pre_sync = rnd.Uniform(kMaxNumValues);
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int num_post_sync = rnd.Uniform(kMaxNumValues);
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PartialCompactTestPreFault(num_pre_sync, num_post_sync);
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PartialCompactTestReopenWithFault(kResetDropUnsyncedData, num_pre_sync,
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num_post_sync);
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NoWriteTestPreFault();
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NoWriteTestReopenWithFault(kResetDropUnsyncedData);
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PartialCompactTestPreFault(num_pre_sync, num_post_sync);
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PartialCompactTestReopenWithFault(kResetDropRandomUnsyncedData,
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num_pre_sync, num_post_sync, &rnd);
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NoWriteTestPreFault();
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NoWriteTestReopenWithFault(kResetDropUnsyncedData);
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// Setting a separate data path won't pass the test as we don't sync
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// it after creating new files,
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PartialCompactTestPreFault(num_pre_sync, num_post_sync);
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PartialCompactTestReopenWithFault(kResetDropAndDeleteUnsynced,
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num_pre_sync, num_post_sync);
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NoWriteTestPreFault();
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NoWriteTestReopenWithFault(kResetDropAndDeleteUnsynced);
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PartialCompactTestPreFault(num_pre_sync, num_post_sync);
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// No new files created so we expect all values since no files will be
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// dropped.
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PartialCompactTestReopenWithFault(kResetDeleteUnsyncedFiles, num_pre_sync,
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num_post_sync);
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NoWriteTestPreFault();
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NoWriteTestReopenWithFault(kResetDeleteUnsyncedFiles);
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}
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} while (ChangeOptions());
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}
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// Previous log file is not fsynced if sync is forced after log rolling.
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TEST_P(FaultInjectionTest, WriteOptionSyncTest) {
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test::SleepingBackgroundTask sleeping_task_low;
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env_->SetBackgroundThreads(1, Env::HIGH);
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// Block the job queue to prevent flush job from running.
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env_->Schedule(&test::SleepingBackgroundTask::DoSleepTask, &sleeping_task_low,
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Env::Priority::HIGH);
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sleeping_task_low.WaitUntilSleeping();
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WriteOptions write_options;
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write_options.sync = false;
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std::string key_space, value_space;
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ASSERT_OK(
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db_->Put(write_options, Key(1, &key_space), Value(1, &value_space)));
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FlushOptions flush_options;
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flush_options.wait = false;
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ASSERT_OK(db_->Flush(flush_options));
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write_options.sync = true;
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ASSERT_OK(
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db_->Put(write_options, Key(2, &key_space), Value(2, &value_space)));
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ASSERT_OK(db_->FlushWAL(false));
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env_->SetFilesystemActive(false);
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NoWriteTestReopenWithFault(kResetDropAndDeleteUnsynced);
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sleeping_task_low.WakeUp();
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sleeping_task_low.WaitUntilDone();
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ASSERT_OK(OpenDB());
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std::string val;
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Value(2, &value_space);
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ASSERT_OK(ReadValue(2, &val));
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ASSERT_EQ(value_space, val);
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Value(1, &value_space);
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ASSERT_OK(ReadValue(1, &val));
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ASSERT_EQ(value_space, val);
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}
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TEST_P(FaultInjectionTest, UninstalledCompaction) {
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options_.target_file_size_base = 32 * 1024;
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options_.write_buffer_size = 100 << 10; // 100KB
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options_.level0_file_num_compaction_trigger = 6;
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options_.level0_stop_writes_trigger = 1 << 10;
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options_.level0_slowdown_writes_trigger = 1 << 10;
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options_.max_background_compactions = 1;
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OpenDB();
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if (!sequential_order_) {
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ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->LoadDependency({
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{"FaultInjectionTest::FaultTest:0", "DBImpl::BGWorkCompaction"},
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{"CompactionJob::Run():End", "FaultInjectionTest::FaultTest:1"},
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{"FaultInjectionTest::FaultTest:2",
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"DBImpl::BackgroundCompaction:NonTrivial:AfterRun"},
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});
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}
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ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
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int kNumKeys = 1000;
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Build(WriteOptions(), 0, kNumKeys);
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FlushOptions flush_options;
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flush_options.wait = true;
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ASSERT_OK(db_->Flush(flush_options));
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ASSERT_OK(db_->Put(WriteOptions(), "", ""));
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TEST_SYNC_POINT("FaultInjectionTest::FaultTest:0");
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TEST_SYNC_POINT("FaultInjectionTest::FaultTest:1");
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env_->SetFilesystemActive(false);
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TEST_SYNC_POINT("FaultInjectionTest::FaultTest:2");
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CloseDB();
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ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
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ResetDBState(kResetDropUnsyncedData);
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std::atomic<bool> opened(false);
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ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->SetCallBack(
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"DBImpl::Open:Opened", [&](void* /*arg*/) { opened.store(true); });
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ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->SetCallBack(
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"DBImpl::BGWorkCompaction",
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[&](void* /*arg*/) { ASSERT_TRUE(opened.load()); });
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ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->EnableProcessing();
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ASSERT_OK(OpenDB());
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ASSERT_OK(Verify(0, kNumKeys, FaultInjectionTest::kValExpectFound));
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WaitCompactionFinish();
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ASSERT_OK(Verify(0, kNumKeys, FaultInjectionTest::kValExpectFound));
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ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->DisableProcessing();
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ROCKSDB_NAMESPACE::SyncPoint::GetInstance()->ClearAllCallBacks();
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}
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TEST_P(FaultInjectionTest, ManualLogSyncTest) {
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test::SleepingBackgroundTask sleeping_task_low;
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env_->SetBackgroundThreads(1, Env::HIGH);
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// Block the job queue to prevent flush job from running.
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env_->Schedule(&test::SleepingBackgroundTask::DoSleepTask, &sleeping_task_low,
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Env::Priority::HIGH);
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sleeping_task_low.WaitUntilSleeping();
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WriteOptions write_options;
|
|
write_options.sync = false;
|
|
|
|
std::string key_space, value_space;
|
|
ASSERT_OK(
|
|
db_->Put(write_options, Key(1, &key_space), Value(1, &value_space)));
|
|
FlushOptions flush_options;
|
|
flush_options.wait = false;
|
|
ASSERT_OK(db_->Flush(flush_options));
|
|
ASSERT_OK(
|
|
db_->Put(write_options, Key(2, &key_space), Value(2, &value_space)));
|
|
ASSERT_OK(db_->FlushWAL(true));
|
|
|
|
env_->SetFilesystemActive(false);
|
|
NoWriteTestReopenWithFault(kResetDropAndDeleteUnsynced);
|
|
sleeping_task_low.WakeUp();
|
|
sleeping_task_low.WaitUntilDone();
|
|
|
|
ASSERT_OK(OpenDB());
|
|
std::string val;
|
|
Value(2, &value_space);
|
|
ASSERT_OK(ReadValue(2, &val));
|
|
ASSERT_EQ(value_space, val);
|
|
|
|
Value(1, &value_space);
|
|
ASSERT_OK(ReadValue(1, &val));
|
|
ASSERT_EQ(value_space, val);
|
|
}
|
|
|
|
TEST_P(FaultInjectionTest, WriteBatchWalTerminationTest) {
|
|
ReadOptions ro;
|
|
Options options = CurrentOptions();
|
|
options.env = env_;
|
|
|
|
WriteOptions wo;
|
|
wo.sync = true;
|
|
wo.disableWAL = false;
|
|
WriteBatch batch;
|
|
ASSERT_OK(batch.Put("cats", "dogs"));
|
|
batch.MarkWalTerminationPoint();
|
|
ASSERT_OK(batch.Put("boys", "girls"));
|
|
ASSERT_OK(db_->Write(wo, &batch));
|
|
|
|
env_->SetFilesystemActive(false);
|
|
NoWriteTestReopenWithFault(kResetDropAndDeleteUnsynced);
|
|
ASSERT_OK(OpenDB());
|
|
|
|
std::string val;
|
|
ASSERT_OK(db_->Get(ro, "cats", &val));
|
|
ASSERT_EQ("dogs", val);
|
|
ASSERT_EQ(db_->Get(ro, "boys", &val), Status::NotFound());
|
|
}
|
|
|
|
INSTANTIATE_TEST_CASE_P(
|
|
FaultTest, FaultInjectionTest,
|
|
::testing::Values(std::make_tuple(false, kDefault, kEnd),
|
|
std::make_tuple(true, kDefault, kEnd)));
|
|
|
|
INSTANTIATE_TEST_CASE_P(
|
|
FaultTest, FaultInjectionTestSplitted,
|
|
::testing::Values(std::make_tuple(false, kDefault, kSyncWal),
|
|
std::make_tuple(true, kDefault, kSyncWal),
|
|
std::make_tuple(false, kSyncWal, kEnd),
|
|
std::make_tuple(true, kSyncWal, kEnd)));
|
|
|
|
} // namespace ROCKSDB_NAMESPACE
|
|
|
|
int main(int argc, char** argv) {
|
|
::testing::InitGoogleTest(&argc, argv);
|
|
RegisterCustomObjects(argc, argv);
|
|
return RUN_ALL_TESTS();
|
|
}
|
|
|