be41c61f22
Summary: `BackupableDBOptions::new_naming_for_backup_files` is added. This option is false by default. When it is true, backup table filenames under directory shared_checksum are of the form `<file_number>_<crc32c>_<db_session_id>.sst`. Note that when this option is true, it comes into effect only when both `share_files_with_checksum` and `share_table_files` are true. Three new test cases are added. Pull Request resolved: https://github.com/facebook/rocksdb/pull/6997 Test Plan: Passed make check. Reviewed By: ajkr Differential Revision: D22098895 Pulled By: gg814 fbshipit-source-id: a1d9145e7fe562d71cde7ac995e17cb24fd42e76
97 lines
3.4 KiB
C++
97 lines
3.4 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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#pragma once
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#ifndef ROCKSDB_LITE
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#include <memory>
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#include <string>
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#include "db/dbformat.h"
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#include "file/writable_file_writer.h"
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#include "options/cf_options.h"
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namespace ROCKSDB_NAMESPACE {
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class SstFileDumper {
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public:
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explicit SstFileDumper(const Options& options, const std::string& file_name,
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size_t readahead_size, bool verify_checksum,
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bool output_hex, bool decode_blob_index,
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bool silent = false);
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Status ReadSequential(bool print_kv, uint64_t read_num, bool has_from,
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const std::string& from_key, bool has_to,
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const std::string& to_key,
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bool use_from_as_prefix = false);
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Status ReadTableProperties(
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std::shared_ptr<const TableProperties>* table_properties);
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uint64_t GetReadNumber() { return read_num_; }
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TableProperties* GetInitTableProperties() { return table_properties_.get(); }
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Status VerifyChecksum();
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Status DumpTable(const std::string& out_filename);
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Status getStatus() { return init_result_; }
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int ShowAllCompressionSizes(
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size_t block_size,
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const std::vector<std::pair<CompressionType, const char*>>&
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compression_types,
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int32_t compress_level_from,
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int32_t compress_level_to);
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int ShowCompressionSize(
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size_t block_size,
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CompressionType compress_type,
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const CompressionOptions& compress_opt);
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private:
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// Get the TableReader implementation for the sst file
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Status GetTableReader(const std::string& file_path);
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Status ReadTableProperties(uint64_t table_magic_number,
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RandomAccessFileReader* file, uint64_t file_size,
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FilePrefetchBuffer* prefetch_buffer);
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uint64_t CalculateCompressedTableSize(const TableBuilderOptions& tb_options,
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size_t block_size,
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uint64_t* num_data_blocks);
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Status SetTableOptionsByMagicNumber(uint64_t table_magic_number);
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Status SetOldTableOptions();
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// Helper function to call the factory with settings specific to the
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// factory implementation
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Status NewTableReader(const ImmutableCFOptions& ioptions,
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const EnvOptions& soptions,
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const InternalKeyComparator& internal_comparator,
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uint64_t file_size,
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std::unique_ptr<TableReader>* table_reader);
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std::string file_name_;
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uint64_t read_num_;
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bool output_hex_;
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bool decode_blob_index_;
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EnvOptions soptions_;
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// less verbose in stdout/stderr
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bool silent_;
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// options_ and internal_comparator_ will also be used in
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// ReadSequential internally (specifically, seek-related operations)
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Options options_;
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Status init_result_;
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std::unique_ptr<TableReader> table_reader_;
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std::unique_ptr<RandomAccessFileReader> file_;
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const ImmutableCFOptions ioptions_;
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const MutableCFOptions moptions_;
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ReadOptions read_options_;
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InternalKeyComparator internal_comparator_;
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std::unique_ptr<TableProperties> table_properties_;
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};
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} // namespace ROCKSDB_NAMESPACE
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#endif // ROCKSDB_LITE
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