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 package org.apache.hadoop.hbase.master.cleaner;
19
20 import static org.apache.hadoop.hbase.HConstants.HBASE_MASTER_LOGCLEANER_PLUGINS;
21
22 import org.apache.commons.logging.Log;
23 import org.apache.commons.logging.LogFactory;
24 import org.apache.hadoop.classification.InterfaceAudience;
25 import org.apache.hadoop.conf.Configuration;
26 import org.apache.hadoop.fs.FileSystem;
27 import org.apache.hadoop.fs.Path;
28 import org.apache.hadoop.hbase.Stoppable;
29 import org.apache.hadoop.hbase.regionserver.wal.HLog;
30 import org.apache.hadoop.hbase.regionserver.wal.HLogUtil;
31
32 /**
33 * This Chore, every time it runs, will attempt to delete the HLogs in the old logs folder. The HLog
34 * is only deleted if none of the cleaner delegates says otherwise.
35 * @see BaseLogCleanerDelegate
36 */
37 @InterfaceAudience.Private
38 public class LogCleaner extends CleanerChore<BaseLogCleanerDelegate> {
39 static final Log LOG = LogFactory.getLog(LogCleaner.class.getName());
40
41 /**
42 * @param p the period of time to sleep between each run
43 * @param s the stopper
44 * @param conf configuration to use
45 * @param fs handle to the FS
46 * @param oldLogDir the path to the archived logs
47 */
48 public LogCleaner(final int p, final Stoppable s, Configuration conf, FileSystem fs,
49 Path oldLogDir) {
50 super("LogsCleaner", p, s, conf, fs, oldLogDir, HBASE_MASTER_LOGCLEANER_PLUGINS);
51 }
52
53 @Override
54 protected boolean validate(Path file) {
55 return HLogUtil.validateHLogFilename(file.getName());
56 }
57 }