[ 
https://issues.apache.org/jira/browse/YARN-1781?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13919750#comment-13919750
 ] 

Jason Lowe commented on YARN-1781:
----------------------------------

Note that we may need to do more than just mark disks as unusable once they are 
"full" for a specified definition of "full."  I suspect a disk being "full" is 
a more transient kind of failure than other failures, and it would be nice if 
full disks were added back in to the list of good dirs once they fall below a 
threshold.  Not a hard requirement necessarily for this JIRA, but I can see it 
being an immediate followup request if not implemented.  The recovery from full 
may be covered by YARN-90 when that's implemented.

> NM should allow users to specify max disk utilization for local disks
> ---------------------------------------------------------------------
>
>                 Key: YARN-1781
>                 URL: https://issues.apache.org/jira/browse/YARN-1781
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: nodemanager
>            Reporter: Varun Vasudev
>
> This is related to YARN-257(it's probably a sub task?). Currently, the NM 
> does not detect full disks and allows full disks to be used by containers 
> leading to repeated failures. YARN-257 deals with graceful handling of full 
> disks. This ticket is only about detection of full disks by the disk health 
> checkers.
> The NM should allow users to set a maximum disk utilization for local disks 
> and mark disks as bad once they exceed that utilization. At the very least, 
> the NM should at least detect full disks.



--
This message was sent by Atlassian JIRA
(v6.2#6252)

Reply via email to