001/* 002 * Licensed to the Apache Software Foundation (ASF) under one 003 * or more contributor license agreements. See the NOTICE file 004 * distributed with this work for additional information 005 * regarding copyright ownership. The ASF licenses this file 006 * to you under the Apache License, Version 2.0 (the 007 * "License"); you may not use this file except in compliance 008 * with the License. You may obtain a copy of the License at 009 * 010 * http://www.apache.org/licenses/LICENSE-2.0 011 * 012 * Unless required by applicable law or agreed to in writing, software 013 * distributed under the License is distributed on an "AS IS" BASIS, 014 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 015 * See the License for the specific language governing permissions and 016 * limitations under the License. 017 */ 018package org.apache.hadoop.hbase.master.balancer; 019 020import org.apache.hadoop.hbase.metrics.BaseSource; 021import org.apache.yetus.audience.InterfaceAudience; 022 023@InterfaceAudience.Private 024public interface MetricsBalancerSource extends BaseSource { 025 026 /** 027 * The name of the metrics 028 */ 029 String METRICS_NAME = "Balancer"; 030 031 /** 032 * The context metrics will be under. 033 */ 034 String METRICS_CONTEXT = "master"; 035 036 /** 037 * The name of the metrics context that metrics will be under in jmx 038 */ 039 String METRICS_JMX_CONTEXT = "Master,sub=" + METRICS_NAME; 040 041 String BALANCE_CLUSTER = "balancerCluster"; 042 String MISC_INVOATION_COUNT = "miscInvocationCount"; 043 String BALANCER_STATUS = "isBalancerActive"; 044 045 /** 046 * Description 047 */ 048 String METRICS_DESCRIPTION = "Metrics about HBase master balancer"; 049 050 void updateBalanceCluster(long time); 051 052 void incrMiscInvocations(); 053 054 void updateBalancerStatus(boolean status); 055}