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From "sandflee (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2038) Revisit how AMs learn of containers from previous attempts
Date Wed, 22 Apr 2015 15:35:59 GMT

    [ https://issues.apache.org/jira/browse/YARN-2038?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14507266#comment-14507266
] 

sandflee commented on YARN-2038:
--------------------------------

If nm register to rm in a short time, we can add a interface to ApplicationMasterService to
tell am container comes back.
If nm are not registered to rm after nm expire time, rm knows nothing about nm now. Could
AM tell RM the node and container Info through ApplicationMasterService.registerApplicationMaster
 while reregister to rm? with this info, RM could treat the unreigstered NM  as a lost NODE
after nm expire time, and pass the container complete msg to am.  
In this solution , we need am to store container info.

> Revisit how AMs learn of containers from previous attempts
> ----------------------------------------------------------
>
>                 Key: YARN-2038
>                 URL: https://issues.apache.org/jira/browse/YARN-2038
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>    Affects Versions: 2.4.0
>            Reporter: Karthik Kambatla
>
> Based on YARN-556, we need to update the way AMs learn about containers allocation previous
attempts. 



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