| /* |
| * Copyright 2010 The Apache Software Foundation |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| package org.apache.hadoop.hbase.master; |
| |
| import org.apache.hadoop.fs.Path; |
| import org.apache.hadoop.conf.Configuration; |
| import org.apache.commons.logging.Log; |
| import org.apache.commons.logging.LogFactory; |
| |
| /** |
| * Log cleaner that uses the timestamp of the hlog to determine if it should |
| * be deleted. By default they are allowed to live for 10 minutes. |
| */ |
| public class TimeToLiveLogCleaner implements LogCleanerDelegate { |
| static final Log LOG = LogFactory.getLog(TimeToLiveLogCleaner.class.getName()); |
| private Configuration conf; |
| // Configured time a log can be kept after it was closed |
| private long ttl; |
| private boolean stopped = false; |
| |
| @Override |
| public boolean isLogDeletable(Path filePath) { |
| long time = 0; |
| long currentTime = System.currentTimeMillis(); |
| String[] parts = filePath.getName().split("\\."); |
| try { |
| time = Long.parseLong(parts[parts.length-1]); |
| } catch (NumberFormatException e) { |
| LOG.error("Unable to parse the timestamp in " + filePath.getName() + |
| ", deleting it since it's invalid and may not be a hlog", e); |
| return true; |
| } |
| long life = currentTime - time; |
| if (life < 0) { |
| LOG.warn("Found a log newer than current time, " + |
| "probably a clock skew"); |
| return false; |
| } |
| return life > ttl; |
| } |
| |
| @Override |
| public void setConf(Configuration conf) { |
| this.conf = conf; |
| this.ttl = conf.getLong("hbase.master.logcleaner.ttl", 600000); |
| } |
| |
| @Override |
| public Configuration getConf() { |
| return conf; |
| } |
| |
| @Override |
| public void stop(String why) { |
| this.stopped = true; |
| } |
| |
| @Override |
| public boolean isStopped() { |
| return this.stopped; |
| } |
| } |