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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.apache.commons.lang.math.RandomUtils;
22  import org.apache.hadoop.hbase.HBaseTestingUtility;
23  import org.apache.hadoop.hbase.client.HBaseAdmin;
24  import org.apache.hadoop.hbase.util.Bytes;
25  
26  /**
27   * Action that queues a table compaction.
28   */
29  public class CompactTableAction extends Action {
30    private final byte[] tableNameBytes;
31    private final int majorRatio;
32    private final long sleepTime;
33    private final String tableName;
34  
35    public CompactTableAction(String tableName, float majorRatio) {
36      this(-1, tableName, majorRatio);
37    }
38  
39    public CompactTableAction(
40        int sleepTime, String tableName, float majorRatio) {
41      this.tableNameBytes = Bytes.toBytes(tableName);
42      this.majorRatio = (int) (100 * majorRatio);
43      this.sleepTime = sleepTime;
44      this.tableName = tableName;
45    }
46  
47    @Override
48    public void perform() throws Exception {
49      HBaseTestingUtility util = context.getHBaseIntegrationTestingUtility();
50      HBaseAdmin admin = util.getHBaseAdmin();
51      boolean major = RandomUtils.nextInt(100) < majorRatio;
52  
53      LOG.info("Performing action: Compact table " + tableName + ", major=" + major);
54      try {
55        if (major) {
56          admin.majorCompact(tableNameBytes);
57        } else {
58          admin.compact(tableNameBytes);
59        }
60      } catch (Exception ex) {
61        LOG.warn("Compaction failed, might be caused by other chaos: " + ex.getMessage());
62      }
63      if (sleepTime > 0) {
64        Thread.sleep(sleepTime);
65      }
66    }
67  }