[
https://issues.apache.org/jira/browse/MAPREDUCE-3162?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13124678#comment-13124678
]
Todd Lipcon commented on MAPREDUCE-3162:
----------------------------------------
there's a bit of a bug in this right now: startContainer can be called
concurrently from several threads, apparently. So one thread can insert the
ApplicationImpl in the concurrent applications map, then another thread can
send the INIT_CONTAINER event before the INIT_APPLICATION event has been sent.
Thinking about a good fix.
> Separate application-init and container-init event types in NM's
> ApplicationImpl FSM
> ------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-3162
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3162
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Affects Versions: 0.23.0
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Priority: Minor
> Attachments: mr-3162.txt
>
>
> Currently, the ApplicationImpl receives an INIT_APPLICATION event on every
> container initialization. Only on the first one does it really mean to init
> the application, whereas all subsequent events are for specific containers.
> This JIRA is to separate the events into INIT_APPLICATION, sent once and only
> once per application, and INIT_CONTAINER, which is sent for every container.
> The first container sends INIT_APPLICATION followed by INIT_CONTAINER.
--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators:
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira
