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rocksdb/db_stress_tool/db_stress_test_base.h

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// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
// This source code is licensed under both the GPLv2 (found in the
// COPYING file in the root directory) and Apache 2.0 License
// (found in the LICENSE.Apache file in the root directory).
//
// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file. See the AUTHORS file for names of contributors.
#ifdef GFLAGS
#pragma once
#include "db_stress_tool/db_stress_common.h"
#include "db_stress_tool/db_stress_shared_state.h"
namespace ROCKSDB_NAMESPACE {
class SystemClock;
class Transaction;
class TransactionDB;
struct TransactionDBOptions;
class StressTest {
public:
StressTest();
virtual ~StressTest();
std::shared_ptr<Cache> NewCache(size_t capacity, int32_t num_shard_bits);
static std::vector<std::string> GetBlobCompressionTags();
bool BuildOptionsTable();
void InitDb(SharedState*);
// The initialization work is split into two parts to avoid a circular
// dependency with `SharedState`.
virtual void FinishInitDb(SharedState*);
void TrackExpectedState(SharedState* shared);
void OperateDb(ThreadState* thread);
virtual void VerifyDb(ThreadState* thread) const = 0;
virtual void ContinuouslyVerifyDb(ThreadState* /*thread*/) const = 0;
void PrintStatistics();
protected:
Status AssertSame(DB* db, ColumnFamilyHandle* cf,
ThreadState::SnapshotState& snap_state);
// Currently PreloadDb has to be single-threaded.
void PreloadDbAndReopenAsReadOnly(int64_t number_of_keys,
SharedState* shared);
Status SetOptions(ThreadState* thread);
#ifndef ROCKSDB_LITE
// For transactionsDB, there can be txns prepared but not yet committeed
// right before previous stress run crash.
// They will be recovered and processed through
// ProcessRecoveredPreparedTxnsHelper on the start of current stress run.
void ProcessRecoveredPreparedTxns(SharedState* shared);
// Default implementation will first update ExpectedState to be
// `SharedState::UNKNOWN` for each keys in `txn` and then randomly
// commit or rollback `txn`.
virtual void ProcessRecoveredPreparedTxnsHelper(Transaction* txn,
SharedState* shared);
Status NewTxn(WriteOptions& write_opts, Transaction** txn);
Status CommitTxn(Transaction* txn, ThreadState* thread = nullptr);
Status RollbackTxn(Transaction* txn);
#endif
virtual void MaybeClearOneColumnFamily(ThreadState* /* thread */) {}
virtual bool ShouldAcquireMutexOnKey() const { return false; }
// Returns true if DB state is tracked by the stress test.
virtual bool IsStateTracked() const = 0;
virtual std::vector<int> GenerateColumnFamilies(
const int /* num_column_families */, int rand_column_family) const {
return {rand_column_family};
}
virtual std::vector<int64_t> GenerateKeys(int64_t rand_key) const {
return {rand_key};
}
virtual Status TestGet(ThreadState* thread, const ReadOptions& read_opts,
const std::vector<int>& rand_column_families,
const std::vector<int64_t>& rand_keys) = 0;
virtual std::vector<Status> TestMultiGet(
ThreadState* thread, const ReadOptions& read_opts,
const std::vector<int>& rand_column_families,
const std::vector<int64_t>& rand_keys) = 0;
virtual Status TestPrefixScan(ThreadState* thread,
const ReadOptions& read_opts,
const std::vector<int>& rand_column_families,
const std::vector<int64_t>& rand_keys) = 0;
virtual Status TestPut(ThreadState* thread, WriteOptions& write_opts,
const ReadOptions& read_opts,
const std::vector<int>& cf_ids,
const std::vector<int64_t>& keys,
char (&value)[100]) = 0;
virtual Status TestDelete(ThreadState* thread, WriteOptions& write_opts,
const std::vector<int>& rand_column_families,
const std::vector<int64_t>& rand_keys) = 0;
virtual Status TestDeleteRange(ThreadState* thread, WriteOptions& write_opts,
const std::vector<int>& rand_column_families,
const std::vector<int64_t>& rand_keys) = 0;
virtual void TestIngestExternalFile(
ThreadState* thread, const std::vector<int>& rand_column_families,
const std::vector<int64_t>& rand_keys) = 0;
// Issue compact range, starting with start_key, whose integer value
// is rand_key.
virtual void TestCompactRange(ThreadState* thread, int64_t rand_key,
const Slice& start_key,
ColumnFamilyHandle* column_family);
// Calculate a hash value for all keys in range [start_key, end_key]
// at a certain snapshot.
uint32_t GetRangeHash(ThreadState* thread, const Snapshot* snapshot,
ColumnFamilyHandle* column_family,
const Slice& start_key, const Slice& end_key);
// Return a column family handle that mirrors what is pointed by
// `column_family_id`, which will be used to validate data to be correct.
// By default, the column family itself will be returned.
virtual ColumnFamilyHandle* GetControlCfh(ThreadState* /* thread*/,
int column_family_id) {
return column_families_[column_family_id];
}
#ifndef ROCKSDB_LITE
// Generated a list of keys that close to boundaries of SST keys.
// If there isn't any SST file in the DB, return empty list.
std::vector<std::string> GetWhiteBoxKeys(ThreadState* thread, DB* db,
ColumnFamilyHandle* cfh,
size_t num_keys);
#else // !ROCKSDB_LITE
std::vector<std::string> GetWhiteBoxKeys(ThreadState*, DB*,
ColumnFamilyHandle*, size_t) {
// Not supported in LITE mode.
return {};
}
#endif // !ROCKSDB_LITE
// Given a key K, this creates an iterator which scans to K and then
// does a random sequence of Next/Prev operations.
virtual Status TestIterate(ThreadState* thread, const ReadOptions& read_opts,
const std::vector<int>& rand_column_families,
const std::vector<int64_t>& rand_keys);
virtual Status TestIterateAgainstExpected(
ThreadState* /* thread */, const ReadOptions& /* read_opts */,
const std::vector<int>& /* rand_column_families */,
const std::vector<int64_t>& /* rand_keys */) {
return Status::NotSupported();
}
// Enum used by VerifyIterator() to identify the mode to validate.
enum LastIterateOp {
kLastOpSeek,
kLastOpSeekForPrev,
kLastOpNextOrPrev,
kLastOpSeekToFirst,
kLastOpSeekToLast
};
// Compare the two iterator, iter and cmp_iter are in the same position,
// unless iter might be made invalidate or undefined because of
// upper or lower bounds, or prefix extractor.
// Will flag failure if the verification fails.
// diverged = true if the two iterator is already diverged.
// True if verification passed, false if not.
// op_logs is the information to print when validation fails.
void VerifyIterator(ThreadState* thread, ColumnFamilyHandle* cmp_cfh,
const ReadOptions& ro, Iterator* iter, Iterator* cmp_iter,
LastIterateOp op, const Slice& seek_key,
const std::string& op_logs, bool* diverged);
virtual Status TestBackupRestore(ThreadState* thread,
const std::vector<int>& rand_column_families,
const std::vector<int64_t>& rand_keys);
virtual Status TestCheckpoint(ThreadState* thread,
const std::vector<int>& rand_column_families,
const std::vector<int64_t>& rand_keys);
void TestCompactFiles(ThreadState* thread, ColumnFamilyHandle* column_family);
Status TestFlush(const std::vector<int>& rand_column_families);
Status TestPauseBackground(ThreadState* thread);
void TestAcquireSnapshot(ThreadState* thread, int rand_column_family,
const std::string& keystr, uint64_t i);
Status MaybeReleaseSnapshots(ThreadState* thread, uint64_t i);
#ifndef ROCKSDB_LITE
Status VerifyGetLiveFiles() const;
Status VerifyGetSortedWalFiles() const;
Status VerifyGetCurrentWalFile() const;
void TestGetProperty(ThreadState* thread) const;
virtual Status TestApproximateSize(
ThreadState* thread, uint64_t iteration,
const std::vector<int>& rand_column_families,
const std::vector<int64_t>& rand_keys);
#endif // !ROCKSDB_LITE
virtual Status TestCustomOperations(
ThreadState* /*thread*/,
const std::vector<int>& /*rand_column_families*/) {
return Status::NotSupported("TestCustomOperations() must be overridden");
}
void VerificationAbort(SharedState* shared, std::string msg, Status s) const;
void VerificationAbort(SharedState* shared, std::string msg, int cf,
int64_t key) const;
void VerificationAbort(SharedState* shared, std::string msg, int cf,
int64_t key, Slice value_from_db,
Slice value_from_expected) const;
void VerificationAbort(SharedState* shared, int cf, int64_t key,
const Slice& value, const WideColumns& columns,
const WideColumns& expected_columns) const;
static std::string DebugString(const Slice& value, const WideColumns& columns,
const WideColumns& expected_columns);
void PrintEnv() const;
void Open(SharedState* shared);
void Reopen(ThreadState* thread);
virtual void RegisterAdditionalListeners() {}
#ifndef ROCKSDB_LITE
virtual void PrepareTxnDbOptions(SharedState* /*shared*/,
TransactionDBOptions& /*txn_db_opts*/) {}
#endif
// Returns whether the timestamp of read_opts is updated.
bool MaybeUseOlderTimestampForPointLookup(ThreadState* thread,
std::string& ts_str,
Slice& ts_slice,
ReadOptions& read_opts);
void MaybeUseOlderTimestampForRangeScan(ThreadState* thread,
std::string& ts_str, Slice& ts_slice,
ReadOptions& read_opts);
std::shared_ptr<Cache> cache_;
std::shared_ptr<Cache> compressed_cache_;
std::shared_ptr<const FilterPolicy> filter_policy_;
DB* db_;
#ifndef ROCKSDB_LITE
TransactionDB* txn_db_;
#endif
// Currently only used in MultiOpsTxnsStressTest
std::atomic<DB*> db_aptr_;
Options options_;
SystemClock* clock_;
std::vector<ColumnFamilyHandle*> column_families_;
std::vector<std::string> column_family_names_;
std::atomic<int> new_column_family_name_;
int num_times_reopened_;
std::unordered_map<std::string, std::vector<std::string>> options_table_;
std::vector<std::string> options_index_;
std::atomic<bool> db_preload_finished_;
// Fields used for continuous verification from another thread
DB* cmp_db_;
std::vector<ColumnFamilyHandle*> cmp_cfhs_;
bool is_db_stopped_;
};
// Load options from OPTIONS file and populate `options`.
extern bool InitializeOptionsFromFile(Options& options);
// Initialize `options` using command line arguments.
// When this function is called, `cache`, `block_cache_compressed`,
// `filter_policy` have all been initialized. Therefore, we just pass them as
// input arguments.
extern void InitializeOptionsFromFlags(
const std::shared_ptr<Cache>& cache,
const std::shared_ptr<Cache>& block_cache_compressed,
const std::shared_ptr<const FilterPolicy>& filter_policy, Options& options);
// Initialize `options` on which `InitializeOptionsFromFile()` and
// `InitializeOptionsFromFlags()` have both been called already.
// There are two cases.
// Case 1: OPTIONS file is not specified. Command line arguments have been used
// to initialize `options`. InitializeOptionsGeneral() will use
// `cache`, `block_cache_compressed` and `filter_policy` to initialize
// corresponding fields of `options`. InitializeOptionsGeneral() will
// also set up other fields of `options` so that stress test can run.
// Examples include `create_if_missing` and
// `create_missing_column_families`, etc.
// Case 2: OPTIONS file is specified. It is possible that, after loading from
// the given OPTIONS files, some shared object fields are still not
// initialized because they are not set in the OPTIONS file. In this
// case, if command line arguments indicate that the user wants to set
// up such shared objects, e.g. block cache, compressed block cache,
// row cache, filter policy, then InitializeOptionsGeneral() will honor
// the user's choice, thus passing `cache`, `block_cache_compressed`,
// `filter_policy` as input arguments.
//
// InitializeOptionsGeneral() must not overwrite fields of `options` loaded
// from OPTIONS file.
extern void InitializeOptionsGeneral(
const std::shared_ptr<Cache>& cache,
const std::shared_ptr<Cache>& block_cache_compressed,
const std::shared_ptr<const FilterPolicy>& filter_policy, Options& options);
// If no OPTIONS file is specified, set up `options` so that we can test
// user-defined timestamp which requires `-user_timestamp_size=8`.
// This function also checks for known (currently) incompatible features with
// user-defined timestamp.
extern void CheckAndSetOptionsForUserTimestamp(Options& options);
} // namespace ROCKSDB_NAMESPACE
#endif // GFLAGS