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c3f720c60d
Summary: The db_stress code uses a wrapper Env on top of the raw/fault injection Env. The wrapper, DbStressEnvWrapper, is a legacy Env and thus has a default implementation of ReadAsync that just does a sync read. As a result, the ReadAsync implementations of PosixFileSystem and other file systems weren't being tested. Also, the ReadAsync interface wasn't implemented in FaultInjectionTestFS. This change implements the necessary interfaces in FaultInjectionTestFS and derives DbStressEnvWrapper from FileSystemWrapper rather than EnvWrapper. Pull Request resolved: https://github.com/facebook/rocksdb/pull/11037 Test Plan: Run db_stress standalone and crash test. With this change, db_stress is able to repro the bug fixed in https://github.com/facebook/rocksdb/issues/10890. Reviewed By: akankshamahajan15 Differential Revision: D42061290 Pulled By: anand1976 fbshipit-source-id: 7f0331fd15ee33fb4f7f0f4b22b206fe801ba074
45 lines
1.9 KiB
C++
45 lines
1.9 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 DbStressFSWrapper : public FileSystemWrapper {
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public:
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explicit DbStressFSWrapper(const std::shared_ptr<FileSystem>& t)
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: FileSystemWrapper(t) {}
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static const char* kClassName() { return "DbStressFS"; }
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const char* Name() const override { return kClassName(); }
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IOStatus DeleteFile(const std::string& f, const IOOptions& opts,
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IODebugContext* dbg) 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, opts, dbg);
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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_", opts, dbg);
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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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