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; 20 21 22 /** 23 * This interface will be implemented to allow single regions to push metrics into 24 * MetricsRegionAggregateSource that will in turn push data to the Hadoop metrics system. 25 */ 26 public interface MetricsRegionSource extends Comparable<MetricsRegionSource> { 27 28 /** 29 * Close the region's metrics as this region is closing. 30 */ 31 void close(); 32 33 /** 34 * Update related counts of puts. 35 */ 36 void updatePut(); 37 38 /** 39 * Update related counts of deletes. 40 */ 41 void updateDelete(); 42 43 /** 44 * Update related counts of gets. 45 */ 46 void updateGet(); 47 48 /** 49 * Update related counts of increments. 50 */ 51 void updateIncrement(); 52 53 /** 54 * Update related counts of appends. 55 */ 56 void updateAppend(); 57 58 /** 59 * Get the aggregate source to which this reports. 60 */ 61 MetricsRegionAggregateSource getAggregateSource(); 62 }