/**
* 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.corona;
import java.io.IOException;
import java.util.regex.Pattern;
import junit.framework.Assert;
import junit.framework.TestCase;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.conf.Configuration;
import org.apache.hadoop.mapred.JobConf;
import org.apache.hadoop.mapred.ExpireUnusedJobFiles;
import org.apache.hadoop.mapred.Clock;
import org.apache.hadoop.fs.Path;
import org.apache.hadoop.fs.FileSystem;
import org.apache.hadoop.fs.FileStatus;
/**
* A Unit-test to test job execution of Mini Corona Map-Reduce Cluster.
*/
public class TestMiniCoronaPurge extends TestCase {
private static final Log LOG =
LogFactory.getLog(TestMiniCoronaPurge.class);
private static final long THRESHOLD = 60000L;
public void testPurge() throws Exception {
LOG.info("Starting testPurge");
JobConf conf = new JobConf();
conf.setLong("mapred.job.file.expirethreshold", THRESHOLD);
conf.setLong("mapred.job.file.checkinterval",10000);
conf.setLong("mapred.job.history.expirethreshold", THRESHOLD);
conf.setLong("mapred.job.history.checkinterval",10000);
conf.setBoolean("mapred.job.temp.cleanup", true);
String systemDir = "/tmp/hadoop/mapred/system";
FileSystem fs = new Path(systemDir).getFileSystem(conf);
Path tagDir;
// long oldtime = System.currentTimeMillis() - THRESHOLD;
for (int i = 0; i < 10; i++) {
tagDir= new Path(systemDir + "/job_00000.00000_00" + i);
if (!fs.exists(tagDir)) {
fs.mkdirs(tagDir);
}
// fs.setTimes(tagDir, oldtime, -1);
}
// Those dirs shall not be removed
tagDir= new Path(systemDir + "/nojob_00000.00000_01");
if (!fs.exists(tagDir)) {
fs.mkdirs(tagDir);
}
// fs.setTimes(tagDir, oldtime, -1);
Thread.sleep(2*THRESHOLD);
Pattern p = Pattern.compile("^(.+)\\/job_(\\d+)\\.(\\d+)_(\\d+)$");
ExpireUnusedJobFiles expire = new ExpireUnusedJobFiles(new Clock(), conf,
new Path(systemDir), p, THRESHOLD);
expire.run();
LOG.info("Check dirs under " + systemDir);
// check if the dirs have been removed
boolean result;
for (int i = 0; i < 10; i++) {
tagDir= new Path(systemDir + "/job_00000.00000_00" + i);
result = fs.exists(tagDir);
assertTrue(tagDir + " is not deleted", result == false);
}
// The dirs shall not be removed
tagDir= new Path(systemDir + "/nojob_00000.00000_01" );
result = fs.exists(tagDir);
assertTrue(tagDir + " is deleted", result == true);
}
}