/*
* 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.mapred;
import java.util.HashMap;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.hadoop.mapred.JobConf;
import org.apache.hadoop.mapred.JobHistory;
import org.apache.hadoop.mapred.JobID;
import org.apache.hadoop.mapred.JobTracker;
import org.apache.hadoop.mapred.TaskAttemptID;
import org.apache.hadoop.chukwa.datacollection.controller.ChukwaAgentController;
import org.apache.hadoop.fs.Path;
public class ChukwaJobTrackerInstrumentation extends
org.apache.hadoop.mapred.JobTrackerMetricsInst {
protected final JobTracker tracker;
private static ChukwaAgentController chukwaClient = null;
private static Log log = LogFactory.getLog(JobTrackerInstrumentation.class);
private static HashMap<JobID, String> jobHistories = null;
public ChukwaJobTrackerInstrumentation(JobTracker jt, JobConf conf) {
super(jt, conf);
tracker = jt;
if (chukwaClient == null) {
chukwaClient = new ChukwaAgentController();
}
if (jobHistories == null) {
jobHistories = new HashMap<JobID, String>();
}
}
public void submitJob(JobConf conf, JobID id) {
super.submitJob(conf,id);
String chukwaJobConf = tracker.getLocalJobFilePath(id);
try {
String jobFileName = JobHistory.JobInfo.getJobHistoryFileName(conf, id);
Path jobHistoryPath = JobHistory.JobInfo
.getJobHistoryLogLocation(jobFileName);
String jobConfPath = JobHistory.JobInfo.getLocalJobFilePath(id);
String adaptorID = chukwaClient
.add(
"org.apache.hadoop.chukwa.datacollection.adaptor.FileAdaptor",
"JobConf", "0 " + jobConfPath, 0);
if (jobHistoryPath.toString().matches("^hdfs://")) {
adaptorID = chukwaClient.add(
"org.apache.hadoop.chukwa.datacollection.adaptor.HDFSAdaptor",
"JobHistory", "0 " + jobHistoryPath.toString(), 0);
} else {
adaptorID = chukwaClient
.add(
"org.apache.hadoop.chukwa.datacollection.adaptor.filetailer.CharFileTailingAdaptorUTF8NewLineEscaped",
"JobHistory", "0 " + jobHistoryPath.toString().substring(5), 0);
}
jobHistories.put(id, adaptorID);
} catch (Exception ex) {
}
}
public void finalizeJob(JobConf conf, JobID id) {
super.finalizeJob(conf,id);
try {
if (jobHistories.containsKey(id)) {
chukwaClient.remove(jobHistories.get(id));
}
} catch (Throwable e) {
log.warn("could not remove adaptor for this job: " + id.toString(), e);
e.printStackTrace();
}
}
}