mirror of
https://github.com/facebook/rocksdb.git
synced 2024-11-28 05:43:50 +00:00
e05c2bb549
Summary: Current db_stress does not cover complex read-write transactions. Therefore, this PR adds coverage for emulated MyRocks-style transactions in `MultiOpsTxnsStressTest`. To achieve this, we need: - Add a new operation type 'customops' so that we can add new complex groups of operations, e.g. transactions involving multiple read-write operations. - Implement three read-write transactions and two read-only ones to emulate MyRocks-style transactions. Pull Request resolved: https://github.com/facebook/rocksdb/pull/8936 Test Plan: ``` make check ./db_stress -test_multi_ops_txns -use_txn -clear_column_family_one_in=0 -column_families=1 -writepercent=0 -delpercent=0 -delrangepercent=0 -customopspercent=60 -readpercent=20 -prefixpercent=0 -iterpercent=20 -reopen=0 -ops_per_thread=100000 ``` Next step is to add more configurability and refine input generation and result reporting, which will done in separate follow-up PRs. Reviewed By: zhichao-cao Differential Revision: D31071795 Pulled By: riversand963 fbshipit-source-id: 50d7c828346ec643311336b904848a1588a37006
303 lines
10 KiB
C++
303 lines
10 KiB
C++
// 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
|
|
#include "db_stress_tool/db_stress_common.h"
|
|
|
|
namespace ROCKSDB_NAMESPACE {
|
|
|
|
// This file defines MultiOpsTxnsStress so that we can stress test RocksDB
|
|
// transactions on a simple, emulated relational table.
|
|
//
|
|
// The record format is similar to the example found at
|
|
// https://github.com/facebook/mysql-5.6/wiki/MyRocks-record-format.
|
|
//
|
|
// The table is created by
|
|
// ```
|
|
// create table t1 (
|
|
// a int primary key,
|
|
// b int,
|
|
// c int,
|
|
// key(c),
|
|
// )
|
|
// ```
|
|
//
|
|
// (For simplicity, we use uint32_t for int here.)
|
|
//
|
|
// For this table, there is a primary index using `a`, as well as a secondary
|
|
// index using `c` and `a`.
|
|
//
|
|
// Primary key format:
|
|
// | index id | M(a) |
|
|
// Primary index value:
|
|
// | b | c |
|
|
// M(a) represents the big-endian format of a.
|
|
//
|
|
// Secondary key format:
|
|
// | index id | M(c) | M(a) |
|
|
// Secondary index value:
|
|
// | crc32 |
|
|
// Similarly to M(a), M(c) is the big-endian format of c.
|
|
//
|
|
// The in-memory representation of a record is defined in class
|
|
// MultiOpsTxnsStress:Record that includes a number of helper methods to
|
|
// encode/decode primary index keys, primary index values, secondary index keys,
|
|
// secondary index values, etc.
|
|
//
|
|
// Sometimes primary index and secondary index reside on different column
|
|
// families, but sometimes they colocate in the same column family. Current
|
|
// implementation puts them in the same (default) column family, and this is
|
|
// subject to future change if we find it interesting to test the other case.
|
|
//
|
|
// Class MultiOpsTxnsStressTest has the following transactions for testing.
|
|
//
|
|
// 1. Primary key update
|
|
// UPDATE t1 SET a = 3 WHERE a = 2;
|
|
// ```
|
|
// tx->GetForUpdate(primary key a=2)
|
|
// tx->GetForUpdate(primary key a=3)
|
|
// tx->Delete(primary key a=2)
|
|
// tx->Put(primary key a=3, value)
|
|
// tx->batch->SingleDelete(secondary key a=2)
|
|
// tx->batch->Put(secondary key a=3, value)
|
|
// tx->Prepare()
|
|
// Tx->Commit()
|
|
// ```
|
|
//
|
|
// 2. Secondary key update
|
|
// UPDATE t1 SET c = 3 WHERE c = 2;
|
|
// ```
|
|
// iter->Seek(secondary key)
|
|
// // Get corresponding primary key value(s) from iterator
|
|
// tx->GetForUpdate(primary key)
|
|
// tx->Put(primary key, value c=3)
|
|
// tx->batch->SingleDelete(secondary key c=2)
|
|
// tx->batch->Put(secondary key c=3)
|
|
// tx->Prepare()
|
|
// tx->Commit()
|
|
// ```
|
|
//
|
|
// 3. Primary index value update
|
|
// UPDATE t1 SET b = b + 1 WHERE a = 2;
|
|
// ```
|
|
// tx->GetForUpdate(primary key a=2)
|
|
// tx->Put(primary key a=2, value b=b+1)
|
|
// tx->Prepare()
|
|
// tx->Commit()
|
|
// ```
|
|
//
|
|
// 4. Point lookup
|
|
// SELECT * FROM t1 WHERE a = 3;
|
|
// ```
|
|
// tx->Get(primary key a=3)
|
|
// tx->Commit()
|
|
// ```
|
|
//
|
|
// 5. Range scan
|
|
// SELECT * FROM t1 WHERE c = 2;
|
|
// ```
|
|
// it = tx->GetIterator()
|
|
// it->Seek(secondary key c=2)
|
|
// tx->Commit()
|
|
// ```
|
|
|
|
class MultiOpsTxnsStressTest : public StressTest {
|
|
public:
|
|
class Record {
|
|
public:
|
|
static constexpr uint32_t kPrimaryIndexId = 1;
|
|
static constexpr uint32_t kSecondaryIndexId = 2;
|
|
|
|
static constexpr size_t kPrimaryIndexEntrySize = 8 + 8;
|
|
static constexpr size_t kSecondaryIndexEntrySize = 12 + 4;
|
|
|
|
static_assert(kPrimaryIndexId < kSecondaryIndexId,
|
|
"kPrimaryIndexId must be smaller than kSecondaryIndexId");
|
|
|
|
static_assert(sizeof(kPrimaryIndexId) == sizeof(uint32_t),
|
|
"kPrimaryIndexId must be 4 bytes");
|
|
static_assert(sizeof(kSecondaryIndexId) == sizeof(uint32_t),
|
|
"kSecondaryIndexId must be 4 bytes");
|
|
|
|
// Used for generating search key to probe primary index.
|
|
static std::string EncodePrimaryKey(uint32_t a);
|
|
// Used for generating search prefix to probe secondary index.
|
|
static std::string EncodeSecondaryKey(uint32_t c);
|
|
// Used for generating search key to probe secondary index.
|
|
static std::string EncodeSecondaryKey(uint32_t c, uint32_t a);
|
|
|
|
static std::tuple<Status, uint32_t, uint32_t> DecodePrimaryIndexValue(
|
|
Slice primary_index_value);
|
|
|
|
static std::pair<Status, uint32_t> DecodeSecondaryIndexValue(
|
|
Slice secondary_index_value);
|
|
|
|
Record() = default;
|
|
Record(uint32_t _a, uint32_t _b, uint32_t _c) : a_(_a), b_(_b), c_(_c) {}
|
|
|
|
bool operator==(const Record& other) const {
|
|
return a_ == other.a_ && b_ == other.b_ && c_ == other.c_;
|
|
}
|
|
|
|
bool operator!=(const Record& other) const { return !(*this == other); }
|
|
|
|
std::pair<std::string, std::string> EncodePrimaryIndexEntry() const;
|
|
|
|
std::string EncodePrimaryKey() const;
|
|
|
|
std::string EncodePrimaryIndexValue() const;
|
|
|
|
std::pair<std::string, std::string> EncodeSecondaryIndexEntry() const;
|
|
|
|
std::string EncodeSecondaryKey() const;
|
|
|
|
Status DecodePrimaryIndexEntry(Slice primary_index_key,
|
|
Slice primary_index_value);
|
|
|
|
Status DecodeSecondaryIndexEntry(Slice secondary_index_key,
|
|
Slice secondary_index_value);
|
|
|
|
uint32_t a_value() const { return a_; }
|
|
uint32_t b_value() const { return b_; }
|
|
uint32_t c_value() const { return c_; }
|
|
|
|
void SetA(uint32_t _a) { a_ = _a; }
|
|
void SetB(uint32_t _b) { b_ = _b; }
|
|
void SetC(uint32_t _c) { c_ = _c; }
|
|
|
|
std::string ToString() const {
|
|
std::string ret("(");
|
|
ret.append(std::to_string(a_));
|
|
ret.append(",");
|
|
ret.append(std::to_string(b_));
|
|
ret.append(",");
|
|
ret.append(std::to_string(c_));
|
|
ret.append(")");
|
|
return ret;
|
|
}
|
|
|
|
private:
|
|
friend class InvariantChecker;
|
|
|
|
uint32_t a_{0};
|
|
uint32_t b_{0};
|
|
uint32_t c_{0};
|
|
};
|
|
|
|
MultiOpsTxnsStressTest() {}
|
|
|
|
~MultiOpsTxnsStressTest() override {}
|
|
|
|
void FinishInitDb(SharedState*) override;
|
|
|
|
void ReopenAndPreloadDb(SharedState* shared);
|
|
|
|
bool IsStateTracked() const override { return false; }
|
|
|
|
Status TestGet(ThreadState* thread, const ReadOptions& read_opts,
|
|
const std::vector<int>& rand_column_families,
|
|
const std::vector<int64_t>& rand_keys) override;
|
|
|
|
std::vector<Status> TestMultiGet(
|
|
ThreadState* thread, const ReadOptions& read_opts,
|
|
const std::vector<int>& rand_column_families,
|
|
const std::vector<int64_t>& rand_keys) override;
|
|
|
|
Status TestPrefixScan(ThreadState* thread, const ReadOptions& read_opts,
|
|
const std::vector<int>& rand_column_families,
|
|
const std::vector<int64_t>& rand_keys) override;
|
|
|
|
// Given a key K, this creates an iterator which scans to K and then
|
|
// does a random sequence of Next/Prev operations.
|
|
Status TestIterate(ThreadState* thread, const ReadOptions& read_opts,
|
|
const std::vector<int>& rand_column_families,
|
|
const std::vector<int64_t>& rand_keys) override;
|
|
|
|
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],
|
|
std::unique_ptr<MutexLock>& lock) override;
|
|
|
|
Status TestDelete(ThreadState* thread, WriteOptions& write_opts,
|
|
const std::vector<int>& rand_column_families,
|
|
const std::vector<int64_t>& rand_keys,
|
|
std::unique_ptr<MutexLock>& lock) override;
|
|
|
|
Status TestDeleteRange(ThreadState* thread, WriteOptions& write_opts,
|
|
const std::vector<int>& rand_column_families,
|
|
const std::vector<int64_t>& rand_keys,
|
|
std::unique_ptr<MutexLock>& lock) override;
|
|
|
|
void TestIngestExternalFile(ThreadState* thread,
|
|
const std::vector<int>& rand_column_families,
|
|
const std::vector<int64_t>& rand_keys,
|
|
std::unique_ptr<MutexLock>& lock) override;
|
|
|
|
void TestCompactRange(ThreadState* thread, int64_t rand_key,
|
|
const Slice& start_key,
|
|
ColumnFamilyHandle* column_family) override;
|
|
|
|
Status TestBackupRestore(ThreadState* thread,
|
|
const std::vector<int>& rand_column_families,
|
|
const std::vector<int64_t>& rand_keys) override;
|
|
|
|
Status TestCheckpoint(ThreadState* thread,
|
|
const std::vector<int>& rand_column_families,
|
|
const std::vector<int64_t>& rand_keys) override;
|
|
|
|
#ifndef ROCKSDB_LITE
|
|
Status TestApproximateSize(ThreadState* thread, uint64_t iteration,
|
|
const std::vector<int>& rand_column_families,
|
|
const std::vector<int64_t>& rand_keys) override;
|
|
#endif // !ROCKSDB_LITE
|
|
|
|
Status TestCustomOperations(
|
|
ThreadState* thread,
|
|
const std::vector<int>& rand_column_families) override;
|
|
|
|
Status PrimaryKeyUpdateTxn(ThreadState* thread, uint32_t old_a,
|
|
uint32_t new_a);
|
|
|
|
Status SecondaryKeyUpdateTxn(ThreadState* thread, uint32_t old_c,
|
|
uint32_t new_c);
|
|
|
|
Status UpdatePrimaryIndexValueTxn(ThreadState* thread, uint32_t a,
|
|
uint32_t b_delta);
|
|
|
|
Status PointLookupTxn(ThreadState* thread, ReadOptions ropts, uint32_t a);
|
|
|
|
Status RangeScanTxn(ThreadState* thread, ReadOptions ropts, uint32_t c);
|
|
|
|
void VerifyDb(ThreadState* thread) const override;
|
|
|
|
protected:
|
|
uint32_t ChooseA(ThreadState* thread);
|
|
|
|
uint32_t GenerateNextA();
|
|
|
|
private:
|
|
void PreloadDb(SharedState* shared, size_t num_c);
|
|
|
|
// TODO (yanqin) encapsulate the selection of keys a separate class.
|
|
std::atomic<uint32_t> next_a_{0};
|
|
};
|
|
|
|
class InvariantChecker {
|
|
public:
|
|
static_assert(sizeof(MultiOpsTxnsStressTest::Record().a_) == sizeof(uint32_t),
|
|
"MultiOpsTxnsStressTest::Record::a_ must be 4 bytes");
|
|
static_assert(sizeof(MultiOpsTxnsStressTest::Record().b_) == sizeof(uint32_t),
|
|
"MultiOpsTxnsStressTest::Record::b_ must be 4 bytes");
|
|
static_assert(sizeof(MultiOpsTxnsStressTest::Record().c_) == sizeof(uint32_t),
|
|
"MultiOpsTxnsStressTest::Record::c_ must be 4 bytes");
|
|
};
|
|
|
|
} // namespace ROCKSDB_NAMESPACE
|
|
#endif // GFLAGS
|