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.master.balancer;
20
21 import org.apache.hadoop.classification.InterfaceAudience;
22 import org.apache.hadoop.hbase.Chore;
23 import org.apache.hadoop.hbase.master.HMaster;
24 import org.apache.hadoop.hbase.master.LoadBalancer;
25
26 /**
27 * Chore that will feed the balancer the cluster status.
28 */
29 @InterfaceAudience.Private
30 public class ClusterStatusChore extends Chore {
31
32 private final HMaster master;
33 private final LoadBalancer balancer;
34
35 public ClusterStatusChore(HMaster master, LoadBalancer balancer) {
36 super(master.getServerName() + "-ClusterStatusChore",
37 master.getConfiguration().getInt("hbase.balancer.statusPeriod", 60000),
38 master);
39 this.master = master;
40 this.balancer = balancer;
41 }
42
43 @Override
44 protected void chore() {
45 balancer.setClusterStatus(master.getClusterStatus());
46 }
47 }