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https://issues.apache.org/jira/browse/MAPREDUCE-4765?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13491094#comment-13491094
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Hadoop QA commented on MAPREDUCE-4765:
--------------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12552191/MAPREDUCE-4765_branch-1.patch
against trunk revision .
{color:red}-1 patch{color}. The patch command could not apply the patch.
Console output:
https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/2989//console
This message is automatically generated.
> Restarting the JobTracker programmatically can cause DelegationTokenRenewal
> to throw an exception
> -------------------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-4765
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4765
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: jobtracker, mrv1
> Affects Versions: 1.1.0
> Reporter: Robert Kanter
> Assignee: Robert Kanter
> Priority: Minor
> Fix For: 1.2.0
>
> Attachments: MAPREDUCE-4765_branch-1.patch,
> MAPREDUCE-4765_branch-1.patch
>
>
> The DelegationTokenRenewal class has a global Timer; when you stop the
> JobTracker by calling {{stopTracker()}} on it (or {{stopJobTracker()}} in
> MiniMRCluster), the JobTracker will call {{close()}} on
> DelegationTokenRenewal, which cancels the Timer. If you then start up the
> JobTracker again by calling {{startTracker()}} on it (or
> {{startJobTracker()}} in MiniMRCluster), the Timer won't necessarily be
> re-created; and DelegationTokenRenewal will later throw an exception when it
> tries to use the Timer again (because you can't reuse a canceled Timer).
> DelegationTokenRenewal doesn't seem to be used in trunk, so we only need this
> for branch-1
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