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.chaos.actions;
20
21 import org.slf4j.Logger;
22 import org.slf4j.LoggerFactory;
23
24 /**
25 * Action that tries to force a balancer run.
26 */
27 public class ForceBalancerAction extends Action {
28 private static final Logger LOG = LoggerFactory.getLogger(ForceBalancerAction.class);
29
30 @Override protected Logger getLogger() {
31 return LOG;
32 }
33
34 @Override
35 public void perform() throws Exception {
36 // Don't try the flush if we're stopping
37 if (context.isStopping()) {
38 return;
39 }
40 getLogger().info("Balancing regions");
41 forceBalancer();
42 }
43 }