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MAPREDUCE-3484. Fixed JobEndNotifier to not get interrupted before completing all its retries. Contributed by Ravi Prakash. 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1214563 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Vinod Kumar Vavilapalli 2011-12-14 23:58:35 +00:00
parent 3758710bff
commit cfbde6ac0f
3 changed files with 20 additions and 10 deletions
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3
hadoop-mapreduce-project/CHANGES.txt
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@ -302,6 +302,9 @@ Release 0.23.1 - Unreleased
MAPREDUCE-3530. Fixed an NPE occuring during scheduling in the
ResourceManager. (Arun C Murthy via vinodkv)
MAPREDUCE-3484. Fixed JobEndNotifier to not get interrupted before completing
all its retries. (Ravi Prakash via vinodkv)
Release 0.23.0 - 2011-11-01
INCOMPATIBLE CHANGES

20
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/main/java/org/apache/hadoop/mapreduce/v2/app/MRAppMaster.java
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@ -375,6 +375,16 @@ public void handle(JobFinishEvent event) {
// this is the only job, so shut down the Appmaster
// note in a workflow scenario, this may lead to creation of a new
// job (FIXME?)
try {
LOG.info("Job end notification started for jobID : "
+ job.getReport().getJobId());
JobEndNotifier notifier = new JobEndNotifier();
notifier.setConf(getConfig());
notifier.notify(job.getReport());
} catch (InterruptedException ie) {
LOG.warn("Job end notification interrupted for jobID : "
+ job.getReport().getJobId(), ie );
}
// TODO:currently just wait for some time so clients can know the
// final states. Will be removed once RM come on.
@ -390,16 +400,6 @@ public void handle(JobFinishEvent event) {
stop();
// Send job-end notification
try {
LOG.info("Job end notification started for jobID : "
+ job.getReport().getJobId());
JobEndNotifier notifier = new JobEndNotifier();
notifier.setConf(getConfig());
notifier.notify(job.getReport());
} catch (InterruptedException ie) {
LOG.warn("Job end notification interrupted for jobID : "
+ job.getReport().getJobId(), ie );
}
} catch (Throwable t) {
LOG.warn("Graceful stop failed ", t);
}

7
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-app/src/test/java/org/apache/hadoop/mapreduce/v2/app/TestJobEndNotifier.java
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@ -96,13 +96,20 @@ public void testNotifyRetries() throws InterruptedException {
conf.set(MRJobConfig.MR_JOB_END_NOTIFICATION_URL, "http://nonexistent");
conf.set(MRJobConfig.MR_JOB_END_NOTIFICATION_MAX_ATTEMPTS, "3");
conf.set(MRJobConfig.MR_JOB_END_RETRY_ATTEMPTS, "3");
conf.set(MRJobConfig.MR_JOB_END_RETRY_INTERVAL, "3");
conf.set(MRJobConfig.MR_JOB_END_NOTIFICATION_MAX_RETRY_INTERVAL, "3");
JobReport jobReport = Mockito.mock(JobReport.class);
long startTime = System.currentTimeMillis();
this.notificationCount = 0;
this.setConf(conf);
this.notify(jobReport);
long endTime = System.currentTimeMillis();
Assert.assertEquals("Only 3 retries were expected but was : "
+ this.notificationCount, this.notificationCount, 3);
Assert.assertTrue("Should have taken more than 9 seconds it took "
+ (endTime - startTime), endTime - startTime > 9000);
}
}