1 /** 2 * Licensed to the Apache Software Foundation (ASF) under one 3 * or more contributor license agreements. See the NOTICE file 4 * distributed with this work for additional information 5 * regarding copyright ownership. The ASF licenses this file 6 * to you under the Apache License, Version 2.0 (the 7 * "License"); you may not use this file except in compliance 8 * with the License. You may obtain a copy of the License at 9 * 10 * http://www.apache.org/licenses/LICENSE-2.0 11 * 12 * Unless required by applicable law or agreed to in writing, software 13 * distributed under the License is distributed on an "AS IS" BASIS, 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 15 * See the License for the specific language governing permissions and 16 * limitations under the License. 17 */ 18 19 package org.apache.hadoop.hbase.regionserver.wal; 20 21 import org.apache.hadoop.hbase.metrics.BaseSource; 22 23 /** 24 * Interface of the source that will export metrics about log replay statistics when recovering a 25 * region server in distributedLogReplay mode 26 */ 27 public interface MetricsEditsReplaySource extends BaseSource { 28 29 /** 30 * The name of the metrics 31 */ 32 String METRICS_NAME = "replay"; 33 34 /** 35 * The name of the metrics context that metrics will be under. 36 */ 37 String METRICS_CONTEXT = "regionserver"; 38 39 /** 40 * Description 41 */ 42 String METRICS_DESCRIPTION = "Metrics about HBase RegionServer WAL Edits Replay"; 43 44 /** 45 * The name of the metrics context that metrics will be under in jmx 46 */ 47 String METRICS_JMX_CONTEXT = "RegionServer,sub=" + METRICS_NAME; 48 49 50 String REPLAY_TIME_NAME = "replayTime"; 51 String REPLAY_TIME_DESC = "Time an replay operation took."; 52 String REPLAY_BATCH_SIZE_NAME = "replayBatchSize"; 53 String REPLAY_BATCH_SIZE_DESC = "Number of changes in each replay batch."; 54 String REPLAY_DATA_SIZE_NAME = "replayDataSize"; 55 String REPLAY_DATA_SIZE_DESC = "Size (in bytes) of the data of each replay."; 56 57 /** 58 * Add the time a replay command took 59 */ 60 void updateReplayTime(long time); 61 62 /** 63 * Add the batch size of each replay 64 */ 65 void updateReplayBatchSize(long size); 66 67 /** 68 * Add the payload data size of each replay 69 */ 70 void updateReplayDataSize(long size); 71 72 }