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https://issues.apache.org/jira/browse/HADOOP-5977?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12716577#action_12716577
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Amar Kamat commented on HADOOP-5977:
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Rahul, this is done because the jobconf is loaded in the jip constructor.
HADOOP-3578 will change this as conf will be passed over the rpc.
But in either case +1.
> Avoid creating JobInProgress objects before Access checks and Queues checks
> are done in JobTracker submitJob
> -------------------------------------------------------------------------------------------------------------
>
> Key: HADOOP-5977
> URL: https://issues.apache.org/jira/browse/HADOOP-5977
> Project: Hadoop Core
> Issue Type: Improvement
> Components: mapred
> Reporter: rahul k singh
>
> In JobTracker submitJob , JobInProgress instance gets created . after this
> checks are done for access and queue state. In event of checks failed . There
> isn't any use for these JIP objects , hence in event of failure only reason
> these objects were created was to get conf data and be deleted.
> We need to fetch the information required to only do the checks instead of
> creating a JobInProgress object
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