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Posted to mapreduce-dev@hadoop.apache.org by "Gunther Hagleitner (JIRA)" <ji...@apache.org> on 2013/04/18 20:30:15 UTC

[jira] [Created] (MAPREDUCE-5166) ConcurrentModificationException in LocalJobRunner

Gunther Hagleitner created MAPREDUCE-5166:
---------------------------------------------

             Summary: ConcurrentModificationException in LocalJobRunner
                 Key: MAPREDUCE-5166
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5166
             Project: Hadoop Map/Reduce
          Issue Type: Bug
            Reporter: Gunther Hagleitner
            Priority: Critical


With the latest version hive unit tests fail in various places with the following stack trace. The problem seems related to: MAPREDUCE-2931

{noformat}
    [junit] java.util.ConcurrentModificationException
    [junit] 	at java.util.HashMap$HashIterator.nextEntry(HashMap.java:793)
    [junit] 	at java.util.HashMap$ValueIterator.next(HashMap.java:822)
    [junit] 	at org.apache.hadoop.mapred.Counters.incrAllCounters(Counters.java:505)
    [junit] 	at org.apache.hadoop.mapred.Counters.sum(Counters.java:528)
    [junit] 	at org.apache.hadoop.mapred.LocalJobRunner$Job.getCurrentCounters(LocalJobRunner.java:490)
    [junit] 	at org.apache.hadoop.mapred.LocalJobRunner.getJobCounters(LocalJobRunner.java:634)
    [junit] 	at org.apache.hadoop.mapred.JobClient$NetworkedJob.getCounters(JobClient.java:418)
    [junit] 	at org.apache.hadoop.hive.ql.exec.HadoopJobExecHelper$ExecDriverTaskHandle.getCounters(HadoopJobExecHelper.java:465)
    [junit] 	at org.apache.hadoop.hive.ql.exec.HadoopJobExecHelper.progress(HadoopJobExecHelper.java:300)
    [junit] 	at org.apache.hadoop.hive.ql.exec.HadoopJobExecHelper.progress(HadoopJobExecHelper.java:532)
    [junit] 	at org.apache.hadoop.hive.ql.exec.ExecDriver.execute(ExecDriver.java:453)
    [junit] 	at org.apache.hadoop.hive.ql.exec.ExecDriver.main(ExecDriver.java:681)
    [junit] 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    [junit] 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
    [junit] 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
    [junit] 	at java.lang.reflect.Method.invoke(Method.java:597)
    [junit] 	at org.apache.hadoop.util.RunJar.main(RunJar.java:160)
{noformat}

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