You are viewing a plain text version of this content. The canonical link for it is here.

Posted to yarn-issues@hadoop.apache.org by "Wangda Tan (JIRA)" <ji...@apache.org> on 2014/12/06 01:17:12 UTC

[jira] [Updated] (YARN-2925) Internal fields in LeafQueue access should be protected when accessed from FiCaSchedulerApp to calculate Headroom

     [ https://issues.apache.org/jira/browse/YARN-2925?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Wangda Tan updated YARN-2925:
-----------------------------
    Attachment: YARN-2925.1.patch

Attached a fix of the method described above

> Internal fields in LeafQueue access should be protected when accessed from FiCaSchedulerApp to calculate Headroom
> -----------------------------------------------------------------------------------------------------------------
>
>                 Key: YARN-2925
>                 URL: https://issues.apache.org/jira/browse/YARN-2925
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: capacityscheduler
>            Reporter: Wangda Tan
>            Assignee: Wangda Tan
>            Priority: Critical
>         Attachments: YARN-2925.1.patch
>
>
> Upon YARN-2644, FiCaScheduler will calculation up-to-date headroom before sending back Allocation response to AM.
> Headroom calculation is happened in LeafQueue side, uses fields like used resource, etc. But it is not protected by any lock of LeafQueue, so it might be corrupted is someone else is editing it.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)