[jira] Commented: (HADOOP-4209) The TaskAttemptID should not have the JobTracker start time

["Owen O'Malley (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HADOOP-4209?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12632504#action_12632504 ] 

Owen O'Malley commented on HADOOP-4209:
---------------------------------------

I would propose that we should extend the jobid by HHMM, which will make all job ids where the JobTracker stays up more than a minute unique. I hope that is enough and that we don't really expect our JobTracker to only last 30 seconds and to launch jobs in that time. *grin*

> The TaskAttemptID should not have the JobTracker start time
> -----------------------------------------------------------
>
>                 Key: HADOOP-4209
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4209
>             Project: Hadoop Core
>          Issue Type: Bug
>            Reporter: Owen O'Malley
>            Priority: Blocker
>             Fix For: 0.19.0
>
>
> The TaskAttemptID now includes the redundant copy of the JobTracker's start time as milliseconds. We should instead change the JobID to have the longer unique string.

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