fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph
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549 lines
20 KiB
549 lines
20 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 (c) 2011 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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#ifdef GFLAGS
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#include "db_stress_tool/db_stress_common.h"
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#include "file/file_util.h"
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namespace ROCKSDB_NAMESPACE {
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class CfConsistencyStressTest : public StressTest {
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public:
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CfConsistencyStressTest() : batch_id_(0) {}
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~CfConsistencyStressTest() override {}
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bool IsStateTracked() const override { return false; }
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Status TestPut(ThreadState* thread, WriteOptions& write_opts,
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const ReadOptions& /* read_opts */,
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const std::vector<int>& rand_column_families,
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const std::vector<int64_t>& rand_keys, char (&value)[100],
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std::unique_ptr<MutexLock>& /* lock */) override {
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std::string key_str = Key(rand_keys[0]);
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Slice key = key_str;
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uint64_t value_base = batch_id_.fetch_add(1);
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size_t sz =
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GenerateValue(static_cast<uint32_t>(value_base), value, sizeof(value));
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Slice v(value, sz);
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WriteBatch batch;
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for (auto cf : rand_column_families) {
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ColumnFamilyHandle* cfh = column_families_[cf];
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if (FLAGS_use_merge) {
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batch.Merge(cfh, key, v);
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} else { /* !FLAGS_use_merge */
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batch.Put(cfh, key, v);
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}
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}
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Status s = db_->Write(write_opts, &batch);
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if (!s.ok()) {
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fprintf(stderr, "multi put or merge error: %s\n", s.ToString().c_str());
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thread->stats.AddErrors(1);
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} else {
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auto num = static_cast<long>(rand_column_families.size());
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thread->stats.AddBytesForWrites(num, (sz + 1) * num);
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}
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return s;
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}
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Status TestDelete(ThreadState* thread, WriteOptions& write_opts,
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const std::vector<int>& rand_column_families,
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const std::vector<int64_t>& rand_keys,
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std::unique_ptr<MutexLock>& /* lock */) override {
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std::string key_str = Key(rand_keys[0]);
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Slice key = key_str;
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WriteBatch batch;
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for (auto cf : rand_column_families) {
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ColumnFamilyHandle* cfh = column_families_[cf];
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batch.Delete(cfh, key);
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}
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Status s = db_->Write(write_opts, &batch);
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if (!s.ok()) {
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fprintf(stderr, "multidel error: %s\n", s.ToString().c_str());
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thread->stats.AddErrors(1);
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} else {
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thread->stats.AddDeletes(static_cast<long>(rand_column_families.size()));
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}
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return s;
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}
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Status TestDeleteRange(ThreadState* thread, WriteOptions& write_opts,
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const std::vector<int>& rand_column_families,
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const std::vector<int64_t>& rand_keys,
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std::unique_ptr<MutexLock>& /* lock */) override {
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int64_t rand_key = rand_keys[0];
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auto shared = thread->shared;
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int64_t max_key = shared->GetMaxKey();
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if (rand_key > max_key - FLAGS_range_deletion_width) {
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rand_key =
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thread->rand.Next() % (max_key - FLAGS_range_deletion_width + 1);
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}
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std::string key_str = Key(rand_key);
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Slice key = key_str;
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std::string end_key_str = Key(rand_key + FLAGS_range_deletion_width);
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Slice end_key = end_key_str;
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WriteBatch batch;
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for (auto cf : rand_column_families) {
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ColumnFamilyHandle* cfh = column_families_[rand_column_families[cf]];
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batch.DeleteRange(cfh, key, end_key);
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}
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Status s = db_->Write(write_opts, &batch);
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if (!s.ok()) {
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fprintf(stderr, "multi del range error: %s\n", s.ToString().c_str());
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thread->stats.AddErrors(1);
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} else {
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thread->stats.AddRangeDeletions(
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static_cast<long>(rand_column_families.size()));
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}
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return s;
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}
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void TestIngestExternalFile(
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ThreadState* /* thread */,
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const std::vector<int>& /* rand_column_families */,
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const std::vector<int64_t>& /* rand_keys */,
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std::unique_ptr<MutexLock>& /* lock */) override {
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assert(false);
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fprintf(stderr,
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"CfConsistencyStressTest does not support TestIngestExternalFile "
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"because it's not possible to verify the result\n");
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std::terminate();
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}
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Status TestGet(ThreadState* thread, const ReadOptions& readoptions,
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const std::vector<int>& rand_column_families,
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const std::vector<int64_t>& rand_keys) override {
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std::string key_str = Key(rand_keys[0]);
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Slice key = key_str;
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Status s;
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bool is_consistent = true;
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if (thread->rand.OneIn(2)) {
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// 1/2 chance, does a random read from random CF
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auto cfh =
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column_families_[rand_column_families[thread->rand.Next() %
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rand_column_families.size()]];
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std::string from_db;
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s = db_->Get(readoptions, cfh, key, &from_db);
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} else {
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// 1/2 chance, comparing one key is the same across all CFs
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const Snapshot* snapshot = db_->GetSnapshot();
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ReadOptions readoptionscopy = readoptions;
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readoptionscopy.snapshot = snapshot;
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std::string value0;
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s = db_->Get(readoptionscopy, column_families_[rand_column_families[0]],
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key, &value0);
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if (s.ok() || s.IsNotFound()) {
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bool found = s.ok();
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for (size_t i = 1; i < rand_column_families.size(); i++) {
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std::string value1;
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s = db_->Get(readoptionscopy,
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column_families_[rand_column_families[i]], key, &value1);
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if (!s.ok() && !s.IsNotFound()) {
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break;
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}
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if (!found && s.ok()) {
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fprintf(stderr, "Get() return different results with key %s\n",
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Slice(key_str).ToString(true).c_str());
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fprintf(stderr, "CF %s is not found\n",
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column_family_names_[0].c_str());
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fprintf(stderr, "CF %s returns value %s\n",
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column_family_names_[i].c_str(),
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Slice(value1).ToString(true).c_str());
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is_consistent = false;
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} else if (found && s.IsNotFound()) {
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fprintf(stderr, "Get() return different results with key %s\n",
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Slice(key_str).ToString(true).c_str());
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fprintf(stderr, "CF %s returns value %s\n",
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column_family_names_[0].c_str(),
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Slice(value0).ToString(true).c_str());
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fprintf(stderr, "CF %s is not found\n",
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column_family_names_[i].c_str());
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is_consistent = false;
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} else if (s.ok() && value0 != value1) {
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fprintf(stderr, "Get() return different results with key %s\n",
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Slice(key_str).ToString(true).c_str());
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fprintf(stderr, "CF %s returns value %s\n",
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column_family_names_[0].c_str(),
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Slice(value0).ToString(true).c_str());
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fprintf(stderr, "CF %s returns value %s\n",
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column_family_names_[i].c_str(),
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Slice(value1).ToString(true).c_str());
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is_consistent = false;
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}
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if (!is_consistent) {
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break;
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}
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}
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}
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db_->ReleaseSnapshot(snapshot);
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}
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if (!is_consistent) {
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fprintf(stderr, "TestGet error: is_consistent is false\n");
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thread->stats.AddErrors(1);
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// Fail fast to preserve the DB state.
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thread->shared->SetVerificationFailure();
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} else if (s.ok()) {
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thread->stats.AddGets(1, 1);
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} else if (s.IsNotFound()) {
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thread->stats.AddGets(1, 0);
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} else {
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fprintf(stderr, "TestGet error: %s\n", s.ToString().c_str());
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thread->stats.AddErrors(1);
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}
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return s;
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}
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std::vector<Status> TestMultiGet(
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ThreadState* thread, const ReadOptions& read_opts,
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const std::vector<int>& rand_column_families,
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const std::vector<int64_t>& rand_keys) override {
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size_t num_keys = rand_keys.size();
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std::vector<std::string> key_str;
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std::vector<Slice> keys;
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keys.reserve(num_keys);
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key_str.reserve(num_keys);
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std::vector<PinnableSlice> values(num_keys);
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std::vector<Status> statuses(num_keys);
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ColumnFamilyHandle* cfh = column_families_[rand_column_families[0]];
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for (size_t i = 0; i < num_keys; ++i) {
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key_str.emplace_back(Key(rand_keys[i]));
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keys.emplace_back(key_str.back());
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}
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db_->MultiGet(read_opts, cfh, num_keys, keys.data(), values.data(),
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statuses.data());
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for (auto s : statuses) {
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if (s.ok()) {
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// found case
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thread->stats.AddGets(1, 1);
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} else if (s.IsNotFound()) {
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// not found case
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thread->stats.AddGets(1, 0);
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} else {
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// errors case
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fprintf(stderr, "MultiGet error: %s\n", s.ToString().c_str());
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thread->stats.AddErrors(1);
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}
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}
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return statuses;
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}
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Status TestPrefixScan(ThreadState* thread, const ReadOptions& readoptions,
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const std::vector<int>& rand_column_families,
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const std::vector<int64_t>& rand_keys) override {
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size_t prefix_to_use =
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(FLAGS_prefix_size < 0) ? 7 : static_cast<size_t>(FLAGS_prefix_size);
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std::string key_str = Key(rand_keys[0]);
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Slice key = key_str;
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Slice prefix = Slice(key.data(), prefix_to_use);
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std::string upper_bound;
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Slice ub_slice;
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ReadOptions ro_copy = readoptions;
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// Get the next prefix first and then see if we want to set upper bound.
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// We'll use the next prefix in an assertion later on
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if (GetNextPrefix(prefix, &upper_bound) && thread->rand.OneIn(2)) {
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ub_slice = Slice(upper_bound);
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ro_copy.iterate_upper_bound = &ub_slice;
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}
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auto cfh =
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column_families_[rand_column_families[thread->rand.Next() %
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rand_column_families.size()]];
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Iterator* iter = db_->NewIterator(ro_copy, cfh);
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unsigned long count = 0;
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for (iter->Seek(prefix); iter->Valid() && iter->key().starts_with(prefix);
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iter->Next()) {
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++count;
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}
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assert(prefix_to_use == 0 ||
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count <= GetPrefixKeyCount(prefix.ToString(), upper_bound));
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Status s = iter->status();
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if (s.ok()) {
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thread->stats.AddPrefixes(1, count);
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} else {
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fprintf(stderr, "TestPrefixScan error: %s\n", s.ToString().c_str());
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thread->stats.AddErrors(1);
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}
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delete iter;
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return s;
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}
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ColumnFamilyHandle* GetControlCfh(ThreadState* thread,
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int /*column_family_id*/
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) override {
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// All column families should contain the same data. Randomly pick one.
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return column_families_[thread->rand.Next() % column_families_.size()];
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}
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void VerifyDb(ThreadState* thread) const override {
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// This `ReadOptions` is for validation purposes. Ignore
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// `FLAGS_rate_limit_user_ops` to avoid slowing any validation.
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ReadOptions options(FLAGS_verify_checksum, true);
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// We must set total_order_seek to true because we are doing a SeekToFirst
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// on a column family whose memtables may support (by default) prefix-based
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// iterator. In this case, NewIterator with options.total_order_seek being
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// false returns a prefix-based iterator. Calling SeekToFirst using this
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// iterator causes the iterator to become invalid. That means we cannot
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// iterate the memtable using this iterator any more, although the memtable
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// contains the most up-to-date key-values.
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options.total_order_seek = true;
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const auto ss_deleter = [this](const Snapshot* ss) {
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db_->ReleaseSnapshot(ss);
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};
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std::unique_ptr<const Snapshot, decltype(ss_deleter)> snapshot_guard(
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db_->GetSnapshot(), ss_deleter);
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options.snapshot = snapshot_guard.get();
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assert(thread != nullptr);
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auto shared = thread->shared;
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std::vector<std::unique_ptr<Iterator>> iters(column_families_.size());
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for (size_t i = 0; i != column_families_.size(); ++i) {
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iters[i].reset(db_->NewIterator(options, column_families_[i]));
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}
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for (auto& iter : iters) {
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iter->SeekToFirst();
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}
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size_t num = column_families_.size();
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assert(num == iters.size());
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std::vector<Status> statuses(num, Status::OK());
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do {
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if (shared->HasVerificationFailedYet()) {
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break;
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}
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size_t valid_cnt = 0;
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size_t idx = 0;
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for (auto& iter : iters) {
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if (iter->Valid()) {
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++valid_cnt;
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} else {
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statuses[idx] = iter->status();
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}
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++idx;
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}
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if (valid_cnt == 0) {
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Status status;
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for (size_t i = 0; i != num; ++i) {
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const auto& s = statuses[i];
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if (!s.ok()) {
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status = s;
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fprintf(stderr, "Iterator on cf %s has error: %s\n",
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column_families_[i]->GetName().c_str(),
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s.ToString().c_str());
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shared->SetVerificationFailure();
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}
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}
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break;
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} else if (valid_cnt != iters.size()) {
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shared->SetVerificationFailure();
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for (size_t i = 0; i != num; ++i) {
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if (!iters[i]->Valid()) {
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if (statuses[i].ok()) {
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fprintf(stderr, "Finished scanning cf %s\n",
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column_families_[i]->GetName().c_str());
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} else {
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fprintf(stderr, "Iterator on cf %s has error: %s\n",
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column_families_[i]->GetName().c_str(),
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statuses[i].ToString().c_str());
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}
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} else {
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fprintf(stderr, "cf %s has remaining data to scan\n",
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column_families_[i]->GetName().c_str());
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}
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}
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break;
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}
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if (shared->HasVerificationFailedYet()) {
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break;
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}
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// If the program reaches here, then all column families' iterators are
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// still valid.
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if (shared->PrintingVerificationResults()) {
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continue;
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}
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Slice key;
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Slice value;
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int num_mismatched_cfs = 0;
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for (size_t i = 0; i != num; ++i) {
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if (i == 0) {
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key = iters[i]->key();
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value = iters[i]->value();
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} else {
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int cmp = key.compare(iters[i]->key());
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if (cmp != 0) {
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++num_mismatched_cfs;
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if (1 == num_mismatched_cfs) {
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fprintf(stderr, "Verification failed\n");
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fprintf(stderr, "Latest Sequence Number: %" PRIu64 "\n",
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db_->GetLatestSequenceNumber());
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fprintf(stderr, "[%s] %s => %s\n",
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column_families_[0]->GetName().c_str(),
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key.ToString(true /* hex */).c_str(),
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value.ToString(true /* hex */).c_str());
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}
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fprintf(stderr, "[%s] %s => %s\n",
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column_families_[i]->GetName().c_str(),
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iters[i]->key().ToString(true /* hex */).c_str(),
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iters[i]->value().ToString(true /* hex */).c_str());
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#ifndef ROCKSDB_LITE
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Slice begin_key;
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Slice end_key;
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if (cmp < 0) {
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begin_key = key;
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end_key = iters[i]->key();
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} else {
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begin_key = iters[i]->key();
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end_key = key;
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}
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std::vector<KeyVersion> versions;
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const size_t kMaxNumIKeys = 8;
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const auto print_key_versions = [&](ColumnFamilyHandle* cfh) {
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Status s = GetAllKeyVersions(db_, cfh, begin_key, end_key,
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kMaxNumIKeys, &versions);
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if (!s.ok()) {
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fprintf(stderr, "%s\n", s.ToString().c_str());
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return;
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}
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assert(nullptr != cfh);
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fprintf(stderr,
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"Internal keys in CF '%s', [%s, %s] (max %" ROCKSDB_PRIszt
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")\n",
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cfh->GetName().c_str(),
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begin_key.ToString(true /* hex */).c_str(),
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end_key.ToString(true /* hex */).c_str(), kMaxNumIKeys);
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for (const KeyVersion& kv : versions) {
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fprintf(stderr, " key %s seq %" PRIu64 " type %d\n",
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Slice(kv.user_key).ToString(true).c_str(), kv.sequence,
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kv.type);
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}
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};
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if (1 == num_mismatched_cfs) {
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print_key_versions(column_families_[0]);
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}
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print_key_versions(column_families_[i]);
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#endif // ROCKSDB_LITE
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shared->SetVerificationFailure();
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}
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}
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}
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shared->FinishPrintingVerificationResults();
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for (auto& iter : iters) {
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iter->Next();
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}
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} while (true);
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}
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#ifndef ROCKSDB_LITE
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void ContinuouslyVerifyDb(ThreadState* thread) const override {
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assert(thread);
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Status status;
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DB* db_ptr = cmp_db_ ? cmp_db_ : db_;
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const auto& cfhs = cmp_db_ ? cmp_cfhs_ : column_families_;
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// Take a snapshot to preserve the state of primary db.
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ManagedSnapshot snapshot_guard(db_);
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SharedState* shared = thread->shared;
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assert(shared);
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if (cmp_db_) {
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status = cmp_db_->TryCatchUpWithPrimary();
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if (!status.ok()) {
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fprintf(stderr, "TryCatchUpWithPrimary: %s\n",
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status.ToString().c_str());
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shared->SetShouldStopTest();
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assert(false);
|
|
return;
|
|
}
|
|
}
|
|
|
|
const auto checksum_column_family = [](Iterator* iter,
|
|
uint32_t* checksum) -> Status {
|
|
assert(nullptr != checksum);
|
|
uint32_t ret = 0;
|
|
for (iter->SeekToFirst(); iter->Valid(); iter->Next()) {
|
|
ret = crc32c::Extend(ret, iter->key().data(), iter->key().size());
|
|
ret = crc32c::Extend(ret, iter->value().data(), iter->value().size());
|
|
}
|
|
*checksum = ret;
|
|
return iter->status();
|
|
};
|
|
// This `ReadOptions` is for validation purposes. Ignore
|
|
// `FLAGS_rate_limit_user_ops` to avoid slowing any validation.
|
|
ReadOptions ropts(FLAGS_verify_checksum, true);
|
|
ropts.total_order_seek = true;
|
|
if (nullptr == cmp_db_) {
|
|
ropts.snapshot = snapshot_guard.snapshot();
|
|
}
|
|
uint32_t crc = 0;
|
|
{
|
|
// Compute crc for all key-values of default column family.
|
|
std::unique_ptr<Iterator> it(db_ptr->NewIterator(ropts));
|
|
status = checksum_column_family(it.get(), &crc);
|
|
if (!status.ok()) {
|
|
fprintf(stderr, "Computing checksum of default cf: %s\n",
|
|
status.ToString().c_str());
|
|
assert(false);
|
|
}
|
|
}
|
|
// Since we currently intentionally disallow reading from the secondary
|
|
// instance with snapshot, we cannot achieve cross-cf consistency if WAL is
|
|
// enabled because there is no guarantee that secondary instance replays
|
|
// the primary's WAL to a consistent point where all cfs have the same
|
|
// data.
|
|
if (status.ok() && FLAGS_disable_wal) {
|
|
uint32_t tmp_crc = 0;
|
|
for (ColumnFamilyHandle* cfh : cfhs) {
|
|
if (cfh == db_ptr->DefaultColumnFamily()) {
|
|
continue;
|
|
}
|
|
std::unique_ptr<Iterator> it(db_ptr->NewIterator(ropts, cfh));
|
|
status = checksum_column_family(it.get(), &tmp_crc);
|
|
if (!status.ok() || tmp_crc != crc) {
|
|
break;
|
|
}
|
|
}
|
|
if (!status.ok()) {
|
|
fprintf(stderr, "status: %s\n", status.ToString().c_str());
|
|
shared->SetShouldStopTest();
|
|
assert(false);
|
|
} else if (tmp_crc != crc) {
|
|
fprintf(stderr, "tmp_crc=%" PRIu32 " crc=%" PRIu32 "\n", tmp_crc, crc);
|
|
shared->SetShouldStopTest();
|
|
assert(false);
|
|
}
|
|
}
|
|
}
|
|
#else // ROCKSDB_LITE
|
|
void ContinuouslyVerifyDb(ThreadState* /*thread*/) const override {}
|
|
#endif // !ROCKSDB_LITE
|
|
|
|
std::vector<int> GenerateColumnFamilies(
|
|
const int /* num_column_families */,
|
|
int /* rand_column_family */) const override {
|
|
std::vector<int> ret;
|
|
int num = static_cast<int>(column_families_.size());
|
|
int k = 0;
|
|
std::generate_n(back_inserter(ret), num, [&k]() -> int { return k++; });
|
|
return ret;
|
|
}
|
|
|
|
private:
|
|
std::atomic<int64_t> batch_id_;
|
|
};
|
|
|
|
StressTest* CreateCfConsistencyStressTest() {
|
|
return new CfConsistencyStressTest();
|
|
}
|
|
|
|
} // namespace ROCKSDB_NAMESPACE
|
|
#endif // GFLAGS
|
|
|