[
https://issues.apache.org/jira/browse/YARN-1445?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13831927#comment-13831927
]
Jason Lowe commented on YARN-1445:
----------------------------------
FINISHING means the app has unregistered and the RM is waiting for the
application to exit on its own. FINISHED means the app is totally done and
has exited. I added the distinction a while back because the RM was
aggressively killing any application as soon as it unregistered, leading to
unclean shutdowns (e..g: failure to cleanup the staging directory). See
MAPREDUCE-4099 for details. In hindsight I should have simply called the new
state UNREGISTERED to help avoid confusion, and my apologies for that.
I mapped the two RMApp states to a single YarnApplicationState since I didn't
think clients needed to know the distinction at the time and doing so meant
breaking existing YARN clients since they would now see a new, unrecognized
state. I'm assuming Xuan has a case where it's necessary to distinguish these
on the client side, curious to hear what that is.
And I hope clients are tolerant of the new state. ;-)
> Separate FINISHING and FINISHED state in YarnApplicationState
> -------------------------------------------------------------
>
> Key: YARN-1445
> URL: https://issues.apache.org/jira/browse/YARN-1445
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Xuan Gong
> Assignee: Xuan Gong
>
> Today, we will transmit both RMAppState.FINISHING and RMAppState.FINISHED to
> YarnApplicationState.FINISHED.
--
This message was sent by Atlassian JIRA
(v6.1#6144)
