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From "Yoram Arnon (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-239) job tracker WI drops jobs after 24 hours
Date Mon, 07 Aug 2006 17:12:15 GMT
     [ http://issues.apache.org/jira/browse/HADOOP-239?page=all ]

Yoram Arnon updated HADOOP-239:
-------------------------------

    Description: 
The jobtracker's WI, keeps track of jobs executed in the past 24 hours.
if the cluster was idle for a day (say Sunday) it drops all its history.
Monday morning, the page is empty.
Better would be to store a fixed number of jobs (say 10 each of succeeded and failed jobs).

Also, if the job tracker is restarted, it loses all its history.
The history should be persistent, withstanding restarts and upgrades.

  was:
The jobtracker's WI, keeps track of jobs executed in the past 24 hours.
if the cluster was idle for a day (say Sunday) it drops all its history.
Monday morning, the page is empty.
Better would be to store a fixed number of jobs (say 10 each of succeeded and failed jobs).


> job tracker WI drops jobs after 24 hours
> ----------------------------------------
>
>                 Key: HADOOP-239
>                 URL: http://issues.apache.org/jira/browse/HADOOP-239
>             Project: Hadoop
>          Issue Type: Bug
>          Components: mapred
>            Reporter: Yoram Arnon
>         Assigned To: Sanjay Dahiya
>            Priority: Minor
>
> The jobtracker's WI, keeps track of jobs executed in the past 24 hours.
> if the cluster was idle for a day (say Sunday) it drops all its history.
> Monday morning, the page is empty.
> Better would be to store a fixed number of jobs (say 10 each of succeeded and failed
jobs).
> Also, if the job tracker is restarted, it loses all its history.
> The history should be persistent, withstanding restarts and upgrades.

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