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

Posted to yarn-dev@hadoop.apache.org by "Sandy Ryza (JIRA)" <ji...@apache.org> on 2013/01/11 21:02:11 UTC

[jira] [Created] (YARN-335) Fair scheduler doesn't check whether rack needs containers before assigning to node

Sandy Ryza created YARN-335:
-------------------------------

             Summary: Fair scheduler doesn't check whether rack needs containers before assigning to node
                 Key: YARN-335
                 URL: https://issues.apache.org/jira/browse/YARN-335
             Project: Hadoop YARN
          Issue Type: Bug
    Affects Versions: 2.0.2-alpha
            Reporter: Sandy Ryza
            Assignee: Sandy Ryza


If an application has an outstanding request on a node, the fair scheduler may try to place a container on that node without checking whether that node's rack needs any containers.  If the rack doesn't need any containers, none should be scheduled on the node.

This can cause an NPE in the fair scheduler. 

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators
For more information on JIRA, see: http://www.atlassian.com/software/jira