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.hbase.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.wal.DefaultWALProvider;
30
31 /**
32 * This Chore, every time it runs, will attempt to delete the WALs in the old logs folder. The WAL
33 * is only deleted if none of the cleaner delegates says otherwise.
34 * @see BaseLogCleanerDelegate
35 */
36 @InterfaceAudience.Private
37 public class LogCleaner extends CleanerChore<BaseLogCleanerDelegate> {
38 static final Log LOG = LogFactory.getLog(LogCleaner.class.getName());
39
40 /**
41 * @param p the period of time to sleep between each run
42 * @param s the stopper
43 * @param conf configuration to use
44 * @param fs handle to the FS
45 * @param oldLogDir the path to the archived logs
46 */
47 public LogCleaner(final int p, final Stoppable s, Configuration conf, FileSystem fs,
48 Path oldLogDir) {
49 super("LogsCleaner", p, s, conf, fs, oldLogDir, HBASE_MASTER_LOGCLEANER_PLUGINS);
50 }
51
52 @Override
53 protected boolean validate(Path file) {
54 return DefaultWALProvider.validateWALFilename(file.getName());
55 }
56 }