[
https://issues.apache.org/jira/browse/YARN-3850?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14602044#comment-14602044
]
Varun Saxena commented on YARN-3850:
------------------------------------
Yes this also looks like a problem. We should not use LocalDirAllocator for
ShuffleHandler.
I will look for other areas where similar problem can happen and update if I
find something.
> Container logs can be lost if disk is full
> ------------------------------------------
>
> Key: YARN-3850
> URL: https://issues.apache.org/jira/browse/YARN-3850
> Project: Hadoop YARN
> Issue Type: Bug
> Components: log-aggregation
> Affects Versions: 2.7.0
> Reporter: Varun Saxena
> Assignee: Varun Saxena
> Priority: Blocker
> Attachments: YARN-3850.01.patch
>
>
> *Container logs* can be lost if disk has become bad(become 90% full).
> When application finishes, we upload logs after aggregation by calling
> {{AppLogAggregatorImpl#uploadLogsForContainers}}. But this call in turns
> checks the eligible directories on call to
> {{LocalDirsHandlerService#getLogDirs}} which in case of disk full would
> return nothing. So none of the container logs are aggregated and uploaded.
> But on application finish, we also call
> {{AppLogAggregatorImpl#doAppLogAggregationPostCleanUp()}}. This deletes the
> application directory which contains container logs. This is because it calls
> {{LocalDirsHandlerService#getLogDirsForCleanup}} which returns the full disks
> as well.
> So we are left with neither aggregated logs for the app nor the individual
> container logs for the app.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
