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Weiwei Yang commented on MAPREDUCE-6762: ---------------------------------------- Attached v1 patch, including the test case to simulate this issue, and a simple fix to get rid of this NPE. > ControlledJob#toString failed with NPE when job status is not successfully > updated > ---------------------------------------------------------------------------------- > > Key: MAPREDUCE-6762 > URL: https://issues.apache.org/jira/browse/MAPREDUCE-6762 > Project: Hadoop Map/Reduce > Issue Type: Bug > Affects Versions: 2.7.2 > Reporter: Weiwei Yang > Attachments: MAPREDUCE-6762.001.patch > > > This issue was found from a cluster where Pig query occasionally failed on > NPE. Pig uses JobControl API to track MR job status, but sometimes Job > History Server failed to flush job meta files to HDFS which caused the status > update failed. Then we get NPE in > {{org.apache.hadoop.mapreduce.Job.getJobName}}. The result of this situation > is quite confusing: Pig query failed, job history is missing, but the job > status on Yarn is succeed. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: mapreduce-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: mapreduce-issues-h...@hadoop.apache.org