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https://issues.apache.org/jira/browse/MAPREDUCE-5704?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Allen Wittenauer updated MAPREDUCE-5704:
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Labels: BB2015-05-TBR (was: )
> Optimize nextJobId in JobTracker
> --------------------------------
>
> Key: MAPREDUCE-5704
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-5704
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: jobtracker, mrv1
> Affects Versions: 1.2.1
> Reporter: JamesLi
> Assignee: JamesLi
> Labels: BB2015-05-TBR
> Attachments: MAPREDUCE-5704.patch
>
>
> When jobtracker start, nextJobId start with 1,if we have run 3000 jobs then
> restart jobtracker and run a new job,we can not see this new job on
> jobtracker:5030/jobhistory.jsp unless click "get more results" button.
> In jobhistory_jsp.java, array SCAN_SIZES controls job numbers displayed on
> jobhistory.jsp.
> I make a little chage,when jobtracker start,find the biggest id under history
> done directory,job will start with maxId+1 or 1 if can not find any job files.
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