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cde69a7cfd
Summary: DB Stress to add --open_metadata_write_fault_one_in which would randomly fail in some file metadata modification operations during DB Open, including file creation, close, renaming and directory sync. Some operations can fail before and after the operations take place. If DB open fails, db_stress would retry without the failure ingestion, and DB is expected to open successfully. This option is enabled in crash test in half of the time. Some follow up changes would allow write failures in open time, and ingesting those failures in non-DB open cases. Pull Request resolved: https://github.com/facebook/rocksdb/pull/8235 Test Plan: Run stress tests for a while and see failures got triggered. This can reproduce the bug fixed by https://github.com/facebook/rocksdb/pull/8192 and a similar one that fails when fsyncing parent directory. Reviewed By: anand1976 Differential Revision: D28010944 fbshipit-source-id: 36a96da4dc3633e5f7680cef3ea0a900fcdb5558
41 lines
1.6 KiB
C++
41 lines
1.6 KiB
C++
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under both the GPLv2 (found in the
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// COPYING file in the root directory) and Apache 2.0 License
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// (found in the LICENSE.Apache file in the root directory).
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//
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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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#pragma once
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#include "db_stress_tool/db_stress_common.h"
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namespace ROCKSDB_NAMESPACE {
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class DbStressEnvWrapper : public EnvWrapper {
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public:
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explicit DbStressEnvWrapper(Env* t) : EnvWrapper(t) {}
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Status DeleteFile(const std::string& f) override {
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// We determine whether it is a manifest file by searching a strong,
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// so that there will be false positive if the directory path contains the
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// keyword but it is unlikely.
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// Checkpoint, backup, and restore directories needs to be exempted.
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if (!if_preserve_all_manifests ||
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f.find("MANIFEST-") == std::string::npos ||
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f.find("checkpoint") != std::string::npos ||
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f.find(".backup") != std::string::npos ||
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f.find(".restore") != std::string::npos) {
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return target()->DeleteFile(f);
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}
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// Rename the file instead of deletion to keep the history, and
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// at the same time it is not visible to RocksDB.
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return target()->RenameFile(f, f + "_renamed_");
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}
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// If true, all manifest files will not be delted in DeleteFile().
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bool if_preserve_all_manifests = true;
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};
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} // namespace ROCKSDB_NAMESPACE
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#endif // GFLAGS
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