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https://issues.apache.org/jira/browse/HADOOP-4274?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Hemanth Yamijala updated HADOOP-4274:
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Attachment: HADOOP-4274.patch
Simple patch that addresses the issue. We copy the list of Jobs to a new
collection and return that to the caller. Also added a test case that verifies
the bug is fixed.
> Capacity scheduler's implementation of getJobs modifies the list of running
> jobs inadvertently
> ----------------------------------------------------------------------------------------------
>
> Key: HADOOP-4274
> URL: https://issues.apache.org/jira/browse/HADOOP-4274
> Project: Hadoop Core
> Issue Type: Bug
> Components: contrib/capacity-sched
> Affects Versions: 0.19.0
> Reporter: Hemanth Yamijala
> Assignee: Hemanth Yamijala
> Priority: Blocker
> Fix For: 0.19.0
>
> Attachments: HADOOP-4274.patch
>
>
> The implementation of the {{getJobs}} API gets the running jobs queue from
> the {{JobQueueManager}}. If it is not null, it appends waiting jobs to the
> list and returns that. This modifies the original list of running jobs and
> can affect the scheduler drastically.
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