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Posted to yarn-issues@hadoop.apache.org by "Joep Rottinghuis (JIRA)" <ji...@apache.org> on 2017/05/06 01:09:04 UTC
[jira] [Commented] (YARN-6315) Improve
LocalResourcesTrackerImpl#isResourcePresent to return false for corrupted
files
[ https://issues.apache.org/jira/browse/YARN-6315?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15999208#comment-15999208 ]
Joep Rottinghuis commented on YARN-6315:
----------------------------------------
I think we're seeing the same issue as we're increasing the # of failed disks we're tolerating on HDFS + Yarn.
We see a larger number of ClassNotFoundExceptions for containers launched on nodes with a disk that has relatively recently gone bad.
> Improve LocalResourcesTrackerImpl#isResourcePresent to return false for corrupted files
> ---------------------------------------------------------------------------------------
>
> Key: YARN-6315
> URL: https://issues.apache.org/jira/browse/YARN-6315
> Project: Hadoop YARN
> Issue Type: Bug
> Affects Versions: 2.7.3, 2.8.1
> Reporter: Kuhu Shukla
> Assignee: Kuhu Shukla
> Attachments: YARN-6315.001.patch, YARN-6315.002.patch, YARN-6315.003.patch, YARN-6315.004.patch
>
>
> We currently check if a resource is present by making sure that the file exists locally. There can be a case where the LocalizationTracker thinks that it has the resource if the file exists but with size 0 or less than the "expected" size of the LocalResource. This JIRA tracks the change to harden the isResourcePresent call to address that case.
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