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https://issues.apache.org/jira/browse/HIVE-19296?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16452446#comment-16452446
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Yongzhi Chen commented on HIVE-19296:
-------------------------------------
When use MapredLocal Task uses logging system defined file, but task fails
before the defined file is created. The System.err has nowhere to direct. It
should be helpful to let HS2 also log the error details. Attached the patch to
add the log.
> Add log to record MapredLocalTask Failure
> -----------------------------------------
>
> Key: HIVE-19296
> URL: https://issues.apache.org/jira/browse/HIVE-19296
> Project: Hive
> Issue Type: Bug
> Components: Diagnosability
> Affects Versions: 1.1.0
> Reporter: Yongzhi Chen
> Assignee: Yongzhi Chen
> Priority: Major
>
> In some cases, When MapredLocalTask fails around Child process start time, we
> can not find the detail error information anywhere(not in strerr log, no
> MapredLocal log file). All we get is :
> {noformat}
> ******************* ERROR org.apache.hadoop.hive.ql.exec.Task:
> [HiveServer2-Background-Pool: Thread-****]: Execution failed with exit
> status: 1
> ******************* ERROR org.apache.hadoop.hive.ql.exec.Task:
> [HiveServer2-Background-Pool: Thread-****]: Obtaining error information
> ******************* ERROR org.apache.hadoop.hive.ql.exec.Task:
> [HiveServer2-Background-Pool: Thread-****]:
> Task failed!
> Task ID:
> Stage-48
> Logs:
> ******************* ERROR org.apache.hadoop.hive.ql.exec.Task:
> [HiveServer2-Background-Pool: Thread-****]:
> /var/log/hive/hadoop-cmf-hive1-HIVESERVER2-t.log.out
> ******************* ERROR org.apache.hadoop.hive.ql.exec.mr.MapredLocalTask:
> [HiveServer2-Background-Pool: Thread-****]: Execution failed with exit
> status: 1
> {noformat}
> It is really hard to debug.
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