fork of https://github.com/oxigraph/rocksdb and https://github.com/facebook/rocksdb for nextgraph and oxigraph
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802 lines
24 KiB
802 lines
24 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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#include "db/version_edit.h"
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#include "db/blob_index.h"
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#include "db/version_set.h"
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#include "logging/event_logger.h"
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#include "rocksdb/slice.h"
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#include "test_util/sync_point.h"
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#include "util/coding.h"
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#include "util/string_util.h"
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namespace rocksdb {
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// The unknown file checksum.
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const std::string kUnknownFileChecksum("");
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// The unknown sst file checksum function name.
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const std::string kUnknownFileChecksumFuncName("Unknown");
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// Mask for an identified tag from the future which can be safely ignored.
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const uint32_t kTagSafeIgnoreMask = 1 << 13;
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// Tag numbers for serialized VersionEdit. These numbers are written to
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// disk and should not be changed. The number should be forward compatible so
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// users can down-grade RocksDB safely. A future Tag is ignored by doing '&'
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// between Tag and kTagSafeIgnoreMask field.
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enum Tag : uint32_t {
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kComparator = 1,
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kLogNumber = 2,
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kNextFileNumber = 3,
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kLastSequence = 4,
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kCompactPointer = 5,
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kDeletedFile = 6,
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kNewFile = 7,
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// 8 was used for large value refs
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kPrevLogNumber = 9,
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kMinLogNumberToKeep = 10,
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// Ignore-able field
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kDbId = kTagSafeIgnoreMask + 1,
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// these are new formats divergent from open source leveldb
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kNewFile2 = 100,
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kNewFile3 = 102,
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kNewFile4 = 103, // 4th (the latest) format version of adding files
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kColumnFamily = 200, // specify column family for version edit
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kColumnFamilyAdd = 201,
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kColumnFamilyDrop = 202,
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kMaxColumnFamily = 203,
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kInAtomicGroup = 300,
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};
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enum CustomTag : uint32_t {
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kTerminate = 1, // The end of customized fields
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kNeedCompaction = 2,
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// Since Manifest is not entirely currently forward-compatible, and the only
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// forward-compatible part is the CutsomtTag of kNewFile, we currently encode
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// kMinLogNumberToKeep as part of a CustomTag as a hack. This should be
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// removed when manifest becomes forward-comptabile.
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kMinLogNumberToKeepHack = 3,
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kOldestBlobFileNumber = 4,
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kOldestAncesterTime = 5,
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kFileCreationTime = 6,
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kFileChecksum = 7,
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kFileChecksumFuncName = 8,
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kPathId = 65,
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};
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// If this bit for the custom tag is set, opening DB should fail if
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// we don't know this field.
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uint32_t kCustomTagNonSafeIgnoreMask = 1 << 6;
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uint64_t PackFileNumberAndPathId(uint64_t number, uint64_t path_id) {
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assert(number <= kFileNumberMask);
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return number | (path_id * (kFileNumberMask + 1));
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}
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void FileMetaData::UpdateBoundaries(const Slice& key, const Slice& value,
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SequenceNumber seqno,
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ValueType value_type) {
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if (smallest.size() == 0) {
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smallest.DecodeFrom(key);
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}
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largest.DecodeFrom(key);
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fd.smallest_seqno = std::min(fd.smallest_seqno, seqno);
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fd.largest_seqno = std::max(fd.largest_seqno, seqno);
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#ifndef ROCKSDB_LITE
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if (value_type == kTypeBlobIndex) {
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BlobIndex blob_index;
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const Status s = blob_index.DecodeFrom(value);
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if (!s.ok()) {
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return;
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}
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if (blob_index.IsInlined()) {
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return;
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}
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if (blob_index.HasTTL()) {
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return;
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}
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// Paranoid check: this should not happen because BlobDB numbers the blob
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// files starting from 1.
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if (blob_index.file_number() == kInvalidBlobFileNumber) {
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return;
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}
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if (oldest_blob_file_number == kInvalidBlobFileNumber ||
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oldest_blob_file_number > blob_index.file_number()) {
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oldest_blob_file_number = blob_index.file_number();
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}
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}
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#else
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(void)value;
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(void)value_type;
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#endif
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}
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void VersionEdit::Clear() {
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max_level_ = 0;
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db_id_.clear();
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comparator_.clear();
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log_number_ = 0;
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prev_log_number_ = 0;
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next_file_number_ = 0;
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max_column_family_ = 0;
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min_log_number_to_keep_ = 0;
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last_sequence_ = 0;
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has_db_id_ = false;
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has_comparator_ = false;
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has_log_number_ = false;
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has_prev_log_number_ = false;
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has_next_file_number_ = false;
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has_max_column_family_ = false;
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has_min_log_number_to_keep_ = false;
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has_last_sequence_ = false;
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deleted_files_.clear();
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new_files_.clear();
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column_family_ = 0;
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is_column_family_add_ = false;
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is_column_family_drop_ = false;
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column_family_name_.clear();
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is_in_atomic_group_ = false;
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remaining_entries_ = 0;
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}
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bool VersionEdit::EncodeTo(std::string* dst) const {
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if (has_db_id_) {
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PutVarint32(dst, kDbId);
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PutLengthPrefixedSlice(dst, db_id_);
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}
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if (has_comparator_) {
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PutVarint32(dst, kComparator);
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PutLengthPrefixedSlice(dst, comparator_);
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}
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if (has_log_number_) {
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PutVarint32Varint64(dst, kLogNumber, log_number_);
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}
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if (has_prev_log_number_) {
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PutVarint32Varint64(dst, kPrevLogNumber, prev_log_number_);
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}
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if (has_next_file_number_) {
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PutVarint32Varint64(dst, kNextFileNumber, next_file_number_);
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}
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if (has_max_column_family_) {
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PutVarint32Varint32(dst, kMaxColumnFamily, max_column_family_);
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}
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if (has_last_sequence_) {
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PutVarint32Varint64(dst, kLastSequence, last_sequence_);
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}
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for (const auto& deleted : deleted_files_) {
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PutVarint32Varint32Varint64(dst, kDeletedFile, deleted.first /* level */,
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deleted.second /* file number */);
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}
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bool min_log_num_written = false;
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for (size_t i = 0; i < new_files_.size(); i++) {
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const FileMetaData& f = new_files_[i].second;
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if (!f.smallest.Valid() || !f.largest.Valid()) {
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return false;
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}
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PutVarint32(dst, kNewFile4);
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PutVarint32Varint64(dst, new_files_[i].first /* level */, f.fd.GetNumber());
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PutVarint64(dst, f.fd.GetFileSize());
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PutLengthPrefixedSlice(dst, f.smallest.Encode());
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PutLengthPrefixedSlice(dst, f.largest.Encode());
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PutVarint64Varint64(dst, f.fd.smallest_seqno, f.fd.largest_seqno);
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// Customized fields' format:
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// +-----------------------------+
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// | 1st field's tag (varint32) |
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// +-----------------------------+
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// | 1st field's size (varint32) |
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// +-----------------------------+
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// | bytes for 1st field |
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// | (based on size decoded) |
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// +-----------------------------+
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// | |
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// | ...... |
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// | |
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// +-----------------------------+
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// | last field's size (varint32)|
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// +-----------------------------+
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// | bytes for last field |
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// | (based on size decoded) |
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// +-----------------------------+
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// | terminating tag (varint32) |
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// +-----------------------------+
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//
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// Customized encoding for fields:
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// tag kPathId: 1 byte as path_id
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// tag kNeedCompaction:
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// now only can take one char value 1 indicating need-compaction
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//
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PutVarint32(dst, CustomTag::kOldestAncesterTime);
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std::string varint_oldest_ancester_time;
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PutVarint64(&varint_oldest_ancester_time, f.oldest_ancester_time);
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TEST_SYNC_POINT_CALLBACK("VersionEdit::EncodeTo:VarintOldestAncesterTime",
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&varint_oldest_ancester_time);
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PutLengthPrefixedSlice(dst, Slice(varint_oldest_ancester_time));
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PutVarint32(dst, CustomTag::kFileCreationTime);
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std::string varint_file_creation_time;
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PutVarint64(&varint_file_creation_time, f.file_creation_time);
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TEST_SYNC_POINT_CALLBACK("VersionEdit::EncodeTo:VarintFileCreationTime",
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&varint_file_creation_time);
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PutLengthPrefixedSlice(dst, Slice(varint_file_creation_time));
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PutVarint32(dst, CustomTag::kFileChecksum);
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PutLengthPrefixedSlice(dst, Slice(f.file_checksum));
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PutVarint32(dst, CustomTag::kFileChecksumFuncName);
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PutLengthPrefixedSlice(dst, Slice(f.file_checksum_func_name));
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if (f.fd.GetPathId() != 0) {
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PutVarint32(dst, CustomTag::kPathId);
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char p = static_cast<char>(f.fd.GetPathId());
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PutLengthPrefixedSlice(dst, Slice(&p, 1));
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}
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if (f.marked_for_compaction) {
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PutVarint32(dst, CustomTag::kNeedCompaction);
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char p = static_cast<char>(1);
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PutLengthPrefixedSlice(dst, Slice(&p, 1));
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}
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if (has_min_log_number_to_keep_ && !min_log_num_written) {
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PutVarint32(dst, CustomTag::kMinLogNumberToKeepHack);
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std::string varint_log_number;
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PutFixed64(&varint_log_number, min_log_number_to_keep_);
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PutLengthPrefixedSlice(dst, Slice(varint_log_number));
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min_log_num_written = true;
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}
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if (f.oldest_blob_file_number != kInvalidBlobFileNumber) {
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PutVarint32(dst, CustomTag::kOldestBlobFileNumber);
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std::string oldest_blob_file_number;
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PutVarint64(&oldest_blob_file_number, f.oldest_blob_file_number);
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PutLengthPrefixedSlice(dst, Slice(oldest_blob_file_number));
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}
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TEST_SYNC_POINT_CALLBACK("VersionEdit::EncodeTo:NewFile4:CustomizeFields",
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dst);
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PutVarint32(dst, CustomTag::kTerminate);
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}
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// 0 is default and does not need to be explicitly written
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if (column_family_ != 0) {
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PutVarint32Varint32(dst, kColumnFamily, column_family_);
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}
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if (is_column_family_add_) {
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PutVarint32(dst, kColumnFamilyAdd);
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PutLengthPrefixedSlice(dst, Slice(column_family_name_));
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}
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if (is_column_family_drop_) {
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PutVarint32(dst, kColumnFamilyDrop);
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}
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if (is_in_atomic_group_) {
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PutVarint32(dst, kInAtomicGroup);
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PutVarint32(dst, remaining_entries_);
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}
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return true;
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}
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static bool GetInternalKey(Slice* input, InternalKey* dst) {
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Slice str;
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if (GetLengthPrefixedSlice(input, &str)) {
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dst->DecodeFrom(str);
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return dst->Valid();
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} else {
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return false;
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}
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}
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bool VersionEdit::GetLevel(Slice* input, int* level, const char** /*msg*/) {
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uint32_t v = 0;
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if (GetVarint32(input, &v)) {
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*level = v;
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if (max_level_ < *level) {
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max_level_ = *level;
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}
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return true;
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} else {
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return false;
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}
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}
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const char* VersionEdit::DecodeNewFile4From(Slice* input) {
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const char* msg = nullptr;
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int level = 0;
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FileMetaData f;
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uint64_t number = 0;
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uint32_t path_id = 0;
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uint64_t file_size = 0;
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SequenceNumber smallest_seqno = 0;
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SequenceNumber largest_seqno = kMaxSequenceNumber;
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// Since this is the only forward-compatible part of the code, we hack new
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// extension into this record. When we do, we set this boolean to distinguish
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// the record from the normal NewFile records.
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if (GetLevel(input, &level, &msg) && GetVarint64(input, &number) &&
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GetVarint64(input, &file_size) && GetInternalKey(input, &f.smallest) &&
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GetInternalKey(input, &f.largest) &&
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GetVarint64(input, &smallest_seqno) &&
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GetVarint64(input, &largest_seqno)) {
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// See comments in VersionEdit::EncodeTo() for format of customized fields
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while (true) {
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uint32_t custom_tag = 0;
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Slice field;
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if (!GetVarint32(input, &custom_tag)) {
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return "new-file4 custom field";
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}
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if (custom_tag == kTerminate) {
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break;
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}
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if (!GetLengthPrefixedSlice(input, &field)) {
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return "new-file4 custom field length prefixed slice error";
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}
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switch (custom_tag) {
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case kPathId:
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if (field.size() != 1) {
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return "path_id field wrong size";
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}
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path_id = field[0];
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if (path_id > 3) {
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return "path_id wrong vaue";
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}
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break;
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case kOldestAncesterTime:
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if (!GetVarint64(&field, &f.oldest_ancester_time)) {
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return "invalid oldest ancester time";
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}
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break;
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case kFileCreationTime:
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if (!GetVarint64(&field, &f.file_creation_time)) {
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return "invalid file creation time";
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}
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break;
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case kFileChecksum:
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f.file_checksum = field.ToString();
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break;
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case kFileChecksumFuncName:
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f.file_checksum_func_name = field.ToString();
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break;
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case kNeedCompaction:
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if (field.size() != 1) {
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return "need_compaction field wrong size";
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}
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f.marked_for_compaction = (field[0] == 1);
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break;
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case kMinLogNumberToKeepHack:
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// This is a hack to encode kMinLogNumberToKeep in a
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// forward-compatible fashion.
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if (!GetFixed64(&field, &min_log_number_to_keep_)) {
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return "deleted log number malformatted";
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}
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has_min_log_number_to_keep_ = true;
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break;
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case kOldestBlobFileNumber:
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if (!GetVarint64(&field, &f.oldest_blob_file_number)) {
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return "invalid oldest blob file number";
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}
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break;
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default:
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if ((custom_tag & kCustomTagNonSafeIgnoreMask) != 0) {
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// Should not proceed if cannot understand it
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return "new-file4 custom field not supported";
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}
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break;
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}
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}
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} else {
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return "new-file4 entry";
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}
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f.fd =
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FileDescriptor(number, path_id, file_size, smallest_seqno, largest_seqno);
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new_files_.push_back(std::make_pair(level, f));
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return nullptr;
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}
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Status VersionEdit::DecodeFrom(const Slice& src) {
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Clear();
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Slice input = src;
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const char* msg = nullptr;
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uint32_t tag = 0;
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// Temporary storage for parsing
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int level = 0;
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FileMetaData f;
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Slice str;
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InternalKey key;
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while (msg == nullptr && GetVarint32(&input, &tag)) {
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switch (tag) {
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case kDbId:
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if (GetLengthPrefixedSlice(&input, &str)) {
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db_id_ = str.ToString();
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has_db_id_ = true;
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} else {
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msg = "db id";
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}
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break;
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case kComparator:
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if (GetLengthPrefixedSlice(&input, &str)) {
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comparator_ = str.ToString();
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has_comparator_ = true;
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} else {
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msg = "comparator name";
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}
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break;
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case kLogNumber:
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if (GetVarint64(&input, &log_number_)) {
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has_log_number_ = true;
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} else {
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msg = "log number";
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}
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break;
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case kPrevLogNumber:
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if (GetVarint64(&input, &prev_log_number_)) {
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has_prev_log_number_ = true;
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} else {
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msg = "previous log number";
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}
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break;
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case kNextFileNumber:
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if (GetVarint64(&input, &next_file_number_)) {
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has_next_file_number_ = true;
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} else {
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msg = "next file number";
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}
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break;
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case kMaxColumnFamily:
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if (GetVarint32(&input, &max_column_family_)) {
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has_max_column_family_ = true;
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} else {
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msg = "max column family";
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}
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break;
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case kMinLogNumberToKeep:
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if (GetVarint64(&input, &min_log_number_to_keep_)) {
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has_min_log_number_to_keep_ = true;
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} else {
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msg = "min log number to kee";
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}
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break;
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case kLastSequence:
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if (GetVarint64(&input, &last_sequence_)) {
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has_last_sequence_ = true;
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} else {
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msg = "last sequence number";
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}
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break;
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case kCompactPointer:
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if (GetLevel(&input, &level, &msg) &&
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GetInternalKey(&input, &key)) {
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// we don't use compact pointers anymore,
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// but we should not fail if they are still
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// in manifest
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} else {
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if (!msg) {
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msg = "compaction pointer";
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}
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}
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break;
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case kDeletedFile: {
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uint64_t number = 0;
|
|
if (GetLevel(&input, &level, &msg) && GetVarint64(&input, &number)) {
|
|
deleted_files_.insert(std::make_pair(level, number));
|
|
} else {
|
|
if (!msg) {
|
|
msg = "deleted file";
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
case kNewFile: {
|
|
uint64_t number = 0;
|
|
uint64_t file_size = 0;
|
|
if (GetLevel(&input, &level, &msg) && GetVarint64(&input, &number) &&
|
|
GetVarint64(&input, &file_size) &&
|
|
GetInternalKey(&input, &f.smallest) &&
|
|
GetInternalKey(&input, &f.largest)) {
|
|
f.fd = FileDescriptor(number, 0, file_size);
|
|
new_files_.push_back(std::make_pair(level, f));
|
|
} else {
|
|
if (!msg) {
|
|
msg = "new-file entry";
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
case kNewFile2: {
|
|
uint64_t number = 0;
|
|
uint64_t file_size = 0;
|
|
SequenceNumber smallest_seqno = 0;
|
|
SequenceNumber largest_seqno = kMaxSequenceNumber;
|
|
if (GetLevel(&input, &level, &msg) && GetVarint64(&input, &number) &&
|
|
GetVarint64(&input, &file_size) &&
|
|
GetInternalKey(&input, &f.smallest) &&
|
|
GetInternalKey(&input, &f.largest) &&
|
|
GetVarint64(&input, &smallest_seqno) &&
|
|
GetVarint64(&input, &largest_seqno)) {
|
|
f.fd = FileDescriptor(number, 0, file_size, smallest_seqno,
|
|
largest_seqno);
|
|
new_files_.push_back(std::make_pair(level, f));
|
|
} else {
|
|
if (!msg) {
|
|
msg = "new-file2 entry";
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
case kNewFile3: {
|
|
uint64_t number = 0;
|
|
uint32_t path_id = 0;
|
|
uint64_t file_size = 0;
|
|
SequenceNumber smallest_seqno = 0;
|
|
SequenceNumber largest_seqno = kMaxSequenceNumber;
|
|
if (GetLevel(&input, &level, &msg) && GetVarint64(&input, &number) &&
|
|
GetVarint32(&input, &path_id) && GetVarint64(&input, &file_size) &&
|
|
GetInternalKey(&input, &f.smallest) &&
|
|
GetInternalKey(&input, &f.largest) &&
|
|
GetVarint64(&input, &smallest_seqno) &&
|
|
GetVarint64(&input, &largest_seqno)) {
|
|
f.fd = FileDescriptor(number, path_id, file_size, smallest_seqno,
|
|
largest_seqno);
|
|
new_files_.push_back(std::make_pair(level, f));
|
|
} else {
|
|
if (!msg) {
|
|
msg = "new-file3 entry";
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
case kNewFile4: {
|
|
msg = DecodeNewFile4From(&input);
|
|
break;
|
|
}
|
|
|
|
case kColumnFamily:
|
|
if (!GetVarint32(&input, &column_family_)) {
|
|
if (!msg) {
|
|
msg = "set column family id";
|
|
}
|
|
}
|
|
break;
|
|
|
|
case kColumnFamilyAdd:
|
|
if (GetLengthPrefixedSlice(&input, &str)) {
|
|
is_column_family_add_ = true;
|
|
column_family_name_ = str.ToString();
|
|
} else {
|
|
if (!msg) {
|
|
msg = "column family add";
|
|
}
|
|
}
|
|
break;
|
|
|
|
case kColumnFamilyDrop:
|
|
is_column_family_drop_ = true;
|
|
break;
|
|
|
|
case kInAtomicGroup:
|
|
is_in_atomic_group_ = true;
|
|
if (!GetVarint32(&input, &remaining_entries_)) {
|
|
if (!msg) {
|
|
msg = "remaining entries";
|
|
}
|
|
}
|
|
break;
|
|
|
|
default:
|
|
if (tag & kTagSafeIgnoreMask) {
|
|
// Tag from future which can be safely ignored.
|
|
// The next field must be the length of the entry.
|
|
uint32_t field_len;
|
|
if (!GetVarint32(&input, &field_len) ||
|
|
static_cast<size_t>(field_len) > input.size()) {
|
|
if (!msg) {
|
|
msg = "safely ignoreable tag length error";
|
|
}
|
|
} else {
|
|
input.remove_prefix(static_cast<size_t>(field_len));
|
|
}
|
|
} else {
|
|
msg = "unknown tag";
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (msg == nullptr && !input.empty()) {
|
|
msg = "invalid tag";
|
|
}
|
|
|
|
Status result;
|
|
if (msg != nullptr) {
|
|
result = Status::Corruption("VersionEdit", msg);
|
|
}
|
|
return result;
|
|
}
|
|
|
|
std::string VersionEdit::DebugString(bool hex_key) const {
|
|
std::string r;
|
|
r.append("VersionEdit {");
|
|
if (has_db_id_) {
|
|
r.append("\n DB ID: ");
|
|
r.append(db_id_);
|
|
}
|
|
if (has_comparator_) {
|
|
r.append("\n Comparator: ");
|
|
r.append(comparator_);
|
|
}
|
|
if (has_log_number_) {
|
|
r.append("\n LogNumber: ");
|
|
AppendNumberTo(&r, log_number_);
|
|
}
|
|
if (has_prev_log_number_) {
|
|
r.append("\n PrevLogNumber: ");
|
|
AppendNumberTo(&r, prev_log_number_);
|
|
}
|
|
if (has_next_file_number_) {
|
|
r.append("\n NextFileNumber: ");
|
|
AppendNumberTo(&r, next_file_number_);
|
|
}
|
|
if (has_max_column_family_) {
|
|
r.append("\n MaxColumnFamily: ");
|
|
AppendNumberTo(&r, max_column_family_);
|
|
}
|
|
if (has_min_log_number_to_keep_) {
|
|
r.append("\n MinLogNumberToKeep: ");
|
|
AppendNumberTo(&r, min_log_number_to_keep_);
|
|
}
|
|
if (has_last_sequence_) {
|
|
r.append("\n LastSeq: ");
|
|
AppendNumberTo(&r, last_sequence_);
|
|
}
|
|
for (const auto& deleted_file : deleted_files_) {
|
|
r.append("\n DeleteFile: ");
|
|
AppendNumberTo(&r, deleted_file.first);
|
|
r.append(" ");
|
|
AppendNumberTo(&r, deleted_file.second);
|
|
}
|
|
for (size_t i = 0; i < new_files_.size(); i++) {
|
|
const FileMetaData& f = new_files_[i].second;
|
|
r.append("\n AddFile: ");
|
|
AppendNumberTo(&r, new_files_[i].first);
|
|
r.append(" ");
|
|
AppendNumberTo(&r, f.fd.GetNumber());
|
|
r.append(" ");
|
|
AppendNumberTo(&r, f.fd.GetFileSize());
|
|
r.append(" ");
|
|
r.append(f.smallest.DebugString(hex_key));
|
|
r.append(" .. ");
|
|
r.append(f.largest.DebugString(hex_key));
|
|
if (f.oldest_blob_file_number != kInvalidBlobFileNumber) {
|
|
r.append(" blob_file:");
|
|
AppendNumberTo(&r, f.oldest_blob_file_number);
|
|
}
|
|
r.append(" oldest_ancester_time:");
|
|
AppendNumberTo(&r, f.oldest_ancester_time);
|
|
r.append(" file_creation_time:");
|
|
AppendNumberTo(&r, f.file_creation_time);
|
|
r.append(" file_checksum:");
|
|
r.append(f.file_checksum);
|
|
r.append(" file_checksum_func_name: ");
|
|
r.append(f.file_checksum_func_name);
|
|
}
|
|
r.append("\n ColumnFamily: ");
|
|
AppendNumberTo(&r, column_family_);
|
|
if (is_column_family_add_) {
|
|
r.append("\n ColumnFamilyAdd: ");
|
|
r.append(column_family_name_);
|
|
}
|
|
if (is_column_family_drop_) {
|
|
r.append("\n ColumnFamilyDrop");
|
|
}
|
|
if (is_in_atomic_group_) {
|
|
r.append("\n AtomicGroup: ");
|
|
AppendNumberTo(&r, remaining_entries_);
|
|
r.append(" entries remains");
|
|
}
|
|
r.append("\n}\n");
|
|
return r;
|
|
}
|
|
|
|
std::string VersionEdit::DebugJSON(int edit_num, bool hex_key) const {
|
|
JSONWriter jw;
|
|
jw << "EditNumber" << edit_num;
|
|
|
|
if (has_db_id_) {
|
|
jw << "DB ID" << db_id_;
|
|
}
|
|
if (has_comparator_) {
|
|
jw << "Comparator" << comparator_;
|
|
}
|
|
if (has_log_number_) {
|
|
jw << "LogNumber" << log_number_;
|
|
}
|
|
if (has_prev_log_number_) {
|
|
jw << "PrevLogNumber" << prev_log_number_;
|
|
}
|
|
if (has_next_file_number_) {
|
|
jw << "NextFileNumber" << next_file_number_;
|
|
}
|
|
if (has_max_column_family_) {
|
|
jw << "MaxColumnFamily" << max_column_family_;
|
|
}
|
|
if (has_min_log_number_to_keep_) {
|
|
jw << "MinLogNumberToKeep" << min_log_number_to_keep_;
|
|
}
|
|
if (has_last_sequence_) {
|
|
jw << "LastSeq" << last_sequence_;
|
|
}
|
|
|
|
if (!deleted_files_.empty()) {
|
|
jw << "DeletedFiles";
|
|
jw.StartArray();
|
|
|
|
for (const auto& deleted_file : deleted_files_) {
|
|
jw.StartArrayedObject();
|
|
jw << "Level" << deleted_file.first;
|
|
jw << "FileNumber" << deleted_file.second;
|
|
jw.EndArrayedObject();
|
|
}
|
|
|
|
jw.EndArray();
|
|
}
|
|
|
|
if (!new_files_.empty()) {
|
|
jw << "AddedFiles";
|
|
jw.StartArray();
|
|
|
|
for (size_t i = 0; i < new_files_.size(); i++) {
|
|
jw.StartArrayedObject();
|
|
jw << "Level" << new_files_[i].first;
|
|
const FileMetaData& f = new_files_[i].second;
|
|
jw << "FileNumber" << f.fd.GetNumber();
|
|
jw << "FileSize" << f.fd.GetFileSize();
|
|
jw << "SmallestIKey" << f.smallest.DebugString(hex_key);
|
|
jw << "LargestIKey" << f.largest.DebugString(hex_key);
|
|
if (f.oldest_blob_file_number != kInvalidBlobFileNumber) {
|
|
jw << "OldestBlobFile" << f.oldest_blob_file_number;
|
|
}
|
|
jw.EndArrayedObject();
|
|
}
|
|
|
|
jw.EndArray();
|
|
}
|
|
|
|
jw << "ColumnFamily" << column_family_;
|
|
|
|
if (is_column_family_add_) {
|
|
jw << "ColumnFamilyAdd" << column_family_name_;
|
|
}
|
|
if (is_column_family_drop_) {
|
|
jw << "ColumnFamilyDrop" << column_family_name_;
|
|
}
|
|
if (is_in_atomic_group_) {
|
|
jw << "AtomicGroup" << remaining_entries_;
|
|
}
|
|
|
|
jw.EndObject();
|
|
|
|
return jw.Get();
|
|
}
|
|
|
|
} // namespace rocksdb
|
|
|