hadoop-yarn-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Wangda Tan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3487) CapacityScheduler scheduler lock obtained unnecessarily
Date Fri, 17 Apr 2015 18:13:59 GMT

    [ https://issues.apache.org/jira/browse/YARN-3487?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14500342#comment-14500342

Wangda Tan commented on YARN-3487:

Thanks for feedback from [~sunilg], [~jlowe].

Make this as a sub JIRA of YARN-3091, and w/r lock for CS is tracked by YARN-3139.

The latest patch LGTM, will commit when Jenkins get back.

> CapacityScheduler scheduler lock obtained unnecessarily
> -------------------------------------------------------
>                 Key: YARN-3487
>                 URL: https://issues.apache.org/jira/browse/YARN-3487
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: capacityscheduler
>    Affects Versions: 2.6.0
>            Reporter: Jason Lowe
>            Assignee: Jason Lowe
>            Priority: Critical
>         Attachments: YARN-3487.001.patch, YARN-3487.002.patch, YARN-3487.003.patch
> Recently saw a significant slowdown of applications on a large cluster, and we noticed
there were a large number of blocked threads on the RM.  Most of the blocked threads were
waiting for the CapacityScheduler lock while calling getQueueInfo.

This message was sent by Atlassian JIRA

View raw message