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From "Amar Kamat (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-6065) TestRunningTaskLimit doesnt work as expected
Date Wed, 17 Jun 2009 08:58:07 GMT
TestRunningTaskLimit doesnt work as expected
--------------------------------------------

                 Key: HADOOP-6065
                 URL: https://issues.apache.org/jira/browse/HADOOP-6065
             Project: Hadoop Core
          Issue Type: Bug
          Components: test
            Reporter: Amar Kamat


I see the following code in TestRunningTaskLimit
{code}
JobConf jobConf = createWaitJobConf(mr, "job1", 20, 20);
    jobConf.setRunningMapLimit(5);
    jobConf.setRunningReduceLimit(3);
    
    // Submit the job
    RunningJob rJob = (new JobClient(jobConf)).submitJob(jobConf);
    
    // Wait 20 seconds for it to start up
    UtilsForTests.waitFor(20000);
    
    // Check the number of running tasks
    JobTracker jobTracker = mr.getJobTrackerRunner().getJobTracker();
    JobInProgress jip = jobTracker.getJob(rJob.getID());
    assertEquals(5, jip.runningMaps());
    assertEquals(3, jip.runningReduces());
{code}

This check is timing based and might not work as expected. Instead we can run a job with >
5 maps (all waiting) and then wait for the job to reach a stable state and then test if exactly
5 maps were scheduled or not.

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