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https://issues.apache.org/jira/browse/MAPREDUCE-1587?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Harsh J resolved MAPREDUCE-1587.
--------------------------------
Resolution: Cannot Reproduce
No longer an issue with recent releases (for the described problem).
P.s. Running the command in local framework/runner mode though, does present
the NPE.
> NPE in JobClient querying an (empty) queue
> ------------------------------------------
>
> Key: MAPREDUCE-1587
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1587
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: client
> Affects Versions: 0.22.0
> Environment: Suse Linux Java 6u15
> Reporter: Steve Loughran
> Priority: Minor
>
> Getting a stack trace on a VM-hosted cluster with an empty queue. Thought
> maybe it was the -verbose option, but no, remove that and I still see it.
> {code}
> java org.apache.hadoop.mapred.JobQueueClient -list -showjobs -verbose
> [sshexec] 10/03/10 13:56:21 INFO security.Groups: Group mapping
> impl=org.apache.hadoop.security.ShellBasedUnixGroupsMapping;
> cacheTimeout=300000
> [sshexec] 10/03/10 13:56:21 INFO jvm.JvmMetrics: Initializing JVM Metrics
> with processName=JobTracker, sessionId=
> [sshexec] Exception in thread "main"
> [sshexec] java.lang.NullPointerException
> [sshexec] at
> org.apache.hadoop.mapred.JobClient.getJobQueueInfoArray(JobClient.java:921)
> [sshexec] at
> org.apache.hadoop.mapred.JobClient.getRootQueues(JobClient.java:937)
> [sshexec] at
> org.apache.hadoop.mapred.JobQueueClient.displayQueueList(JobQueueClient.java:142)
> [sshexec] at
> org.apache.hadoop.mapred.JobQueueClient.run(JobQueueClient.java:96)
> [sshexec] at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
> [sshexec] at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79)
> [sshexec] at
> org.apache.hadoop.mapred.JobQueueClient.main(JobQueueClient.java:232)
> {code}
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