[jira] Commented: (HIVE-1349) Do not pull counters of non initialized jobs

["Namit Jain (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HIVE-1349?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12868849#action_12868849 ] 

Namit Jain commented on HIVE-1349:
----------------------------------

I will take a look

> Do not pull counters of non initialized jobs
> --------------------------------------------
>
>                 Key: HIVE-1349
>                 URL: https://issues.apache.org/jira/browse/HIVE-1349
>             Project: Hadoop Hive
>          Issue Type: Improvement
>            Reporter: Dmytro Molkov
>         Attachments: HIVE-1349.patch
>
>
> Right now hive client puts a lot of pressure on the jobtracker by pulling the counters of the job that has just been submitted and is in the process of initializing tasks.
> While the job initialized tasks and reads the splits file it is holding the JobInProgress lock. The getCounters method acquires a JobTracker lock and waits for the JobInProgress lock. Since the read of the file can  take a couple (a couple of tens of seconds) the job tracker is effectively blocked for that period of time.

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