001/* 002 * 003 * Licensed to the Apache Software Foundation (ASF) under one 004 * or more contributor license agreements. See the NOTICE file 005 * distributed with this work for additional information 006 * regarding copyright ownership. The ASF licenses this file 007 * to you under the Apache License, Version 2.0 (the 008 * "License"); you may not use this file except in compliance 009 * with the License. You may obtain a copy of the License at 010 * 011 * http://www.apache.org/licenses/LICENSE-2.0 012 * 013 * Unless required by applicable law or agreed to in writing, software 014 * distributed under the License is distributed on an "AS IS" BASIS, 015 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 016 * See the License for the specific language governing permissions and 017 * limitations under the License. 018 */ 019package org.apache.hadoop.hbase.replication; 020 021import org.apache.yetus.audience.InterfaceAudience; 022 023/** 024 * The replication listener interface can be implemented if a class needs to subscribe to events 025 * generated by the ReplicationTracker. These events include things like addition/deletion of peer 026 * clusters or failure of a local region server. To receive events, the class also needs to register 027 * itself with a Replication Tracker. 028 */ 029@InterfaceAudience.Private 030public interface ReplicationListener { 031 032 /** 033 * A region server has been removed from the local cluster 034 * @param regionServer the removed region server 035 */ 036 public void regionServerRemoved(String regionServer); 037}