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From "Paul Yang (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HIVE-1578) Add conf. property hive.exec.show.job.failure.debug.info to enable/disable displaying link to the task with most failures
Date Sun, 22 Aug 2010 20:32:16 GMT

    [ https://issues.apache.org/jira/browse/HIVE-1578?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12901207#action_12901207
] 

Paul Yang commented on HIVE-1578:
---------------------------------

@Carl

The message to the user about the conf var is a good idea. I can put info level logging statements,
but I don't think it's possible to know the number of task completion events before retrieving
them, so there won't be a % complete message.

> Add conf. property hive.exec.show.job.failure.debug.info to enable/disable displaying
link to the task with most failures
> -------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HIVE-1578
>                 URL: https://issues.apache.org/jira/browse/HIVE-1578
>             Project: Hadoop Hive
>          Issue Type: Bug
>    Affects Versions: 0.7.0
>            Reporter: Paul Yang
>            Assignee: Paul Yang
>             Fix For: 0.7.0
>
>         Attachments: HIVE-1578.1.patch
>
>
> If a job fails, Hive currently displays a link to the task with the most number of failures
for easy access to the error logs. However, generating the link may require many RPC's to
get all the task completion events, adding a delay of up to 30 minutes. This patch adds a
configuration variable to control whether the link is generated. Turning off this feature
would also disable automatic debugging tips generated by heuristics reading from the error
logs.

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