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https://github.com/facebook/rocksdb.git
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994575c134
Summary: 1. Added a new option that support user-defined table stats collection. 2. Added a deleted key stats collector in `utilities` Test Plan: Added a unit test for newly added code. Also ran make check to make sure other tests are not broken. Reviewers: dhruba, haobo Reviewed By: dhruba CC: leveldb Differential Revision: https://reviews.facebook.net/D13491
56 lines
1.5 KiB
C++
56 lines
1.5 KiB
C++
// Copyright (c) 2013, Facebook, Inc. All rights reserved.
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// This source code is licensed under the BSD-style license found in the
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// LICENSE file in the root directory of this source tree. An additional grant
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// of patent rights can be found in the PATENTS file in the same directory.
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#include "db/table_stats_collector.h"
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#include "db/dbformat.h"
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#include "util/coding.h"
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namespace rocksdb {
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Status InternalKeyStatsCollector::Add(const Slice& key, const Slice& value) {
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ParsedInternalKey ikey;
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if (!ParseInternalKey(key, &ikey)) {
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return Status::InvalidArgument("Invalid internal key");
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}
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if (ikey.type == ValueType::kTypeDeletion) {
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++deleted_keys_;
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}
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return Status::OK();
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}
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Status InternalKeyStatsCollector::Finish(
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TableStats::UserCollectedStats* stats) {
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assert(stats);
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assert(stats->find(InternalKeyTableStatsNames::kDeletedKeys) == stats->end());
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std::string val;
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PutVarint64(&val, deleted_keys_);
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stats->insert(std::make_pair(InternalKeyTableStatsNames::kDeletedKeys, val));
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return Status::OK();
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}
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Status UserKeyTableStatsCollector::Add(const Slice& key, const Slice& value) {
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ParsedInternalKey ikey;
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if (!ParseInternalKey(key, &ikey)) {
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return Status::InvalidArgument("Invalid internal key");
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}
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return collector_->Add(ikey.user_key, value);
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}
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Status UserKeyTableStatsCollector::Finish(
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TableStats::UserCollectedStats* stats) {
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return collector_->Finish(stats);
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}
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const std::string InternalKeyTableStatsNames::kDeletedKeys
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= "rocksdb.deleted.keys";
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} // namespace rocksdb
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