db_stress: preserve all historic manifest files (#6142)
Summary: compaction history is stored in manifest files. Preserve all of them in db_stress would help debugging. Pull Request resolved: https://github.com/facebook/rocksdb/pull/6142 Test Plan: Run db_stress and observe that manifest files are preserved. Run whole crash_test and see how DB directory looks like. Differential Revision: D19047026 fbshipit-source-id: f83c3e0bb5332b1b4768be5dcee56a24f9b760a9main
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// 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 { |
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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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if (!if_preserve_all_manifests || |
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f.find("MANIFEST-") == std::string::npos) { |
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return target()->DeleteFile(f); |
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} |
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return Status::OK(); |
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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
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#endif // GFLAGS
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