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https://issues.apache.org/jira/browse/MAPREDUCE-3755?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13977062#comment-13977062
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Bikas Saha commented on MAPREDUCE-3755:
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Probably not. We may close this.
> Add the equivalent of JobStatus to end of JobHistory file
> ----------------------------------------------------------
>
> Key: MAPREDUCE-3755
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3755
> Project: Hadoop Map/Reduce
> Issue Type: Sub-task
> Components: jobhistoryserver, mrv2
> Affects Versions: 0.23.0
> Reporter: Arun C Murthy
> Assignee: Bikas Saha
> Fix For: 0.23.2
>
>
> In MR1 we have the notion of CompletedJobStatus store to aid fast responses
> to job.getStatus. We need the equivalent for MR2, an option is to add the
> jobStatus to the end of the JobHistory file to which the JHS can easily jump
> ahead to and serve the query, it should also cache this for a fair number of
> recently completed jobs.
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