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} -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira