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Posted to yarn-issues@hadoop.apache.org by "Tarun Parimi (JIRA)" <ji...@apache.org> on 2018/11/30 06:46:00 UTC
[jira] [Commented] (YARN-8627) EntityGroupFSTimelineStore hdfs done
directory keeps on accumulating
[ https://issues.apache.org/jira/browse/YARN-8627?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16704328#comment-16704328 ]
Tarun Parimi commented on YARN-8627:
------------------------------------
[~rohithsharma] , I was unable to reproduce locally. Still cant figure out why some Tez applications write the domainlog to the wrong directory in hdfs. I think its likely a bug in Tez. Since this patch fixes the separate issue of /ats/done hdfs folder getting accumulated. Can you review the patch once again? I am reattaching it to kick in jenkins build again.
> EntityGroupFSTimelineStore hdfs done directory keeps on accumulating
> --------------------------------------------------------------------
>
> Key: YARN-8627
> URL: https://issues.apache.org/jira/browse/YARN-8627
> Project: Hadoop YARN
> Issue Type: Bug
> Components: timelineserver
> Affects Versions: 2.8.0
> Reporter: Tarun Parimi
> Assignee: Tarun Parimi
> Priority: Major
> Attachments: YARN-8627.001.patch, YARN-8627.002.patch, YARN-8627.003.patch, app-domain-logs.zip
>
>
> The EntityLogCleaner threads exits with the following ERROR every time it runs.
> {code:java}
> 2018-07-18 19:59:39,837 INFO timeline.EntityGroupFSTimelineStore (EntityGroupFSTimelineStore.java:cleanLogs(462)) - Deleting hdfs://namenode/ats/done/1499684568068/0000/018/application_1499684568068_18268
> 2018-07-18 19:59:39,844 INFO timeline.EntityGroupFSTimelineStore (EntityGroupFSTimelineStore.java:cleanLogs(462)) - Deleting hdfs://namenode/ats/done/1499684568068/0000/018/application_1499684568068_18270
> 2018-07-18 19:59:39,848 ERROR timeline.EntityGroupFSTimelineStore (EntityGroupFSTimelineStore.java:run(899)) - Error cleaning files java.io.FileNotFoundException: File hdfs://namenode/ats/done/1499684568068/0000/018/application_1499684568068_18270 does not exist. at org.apache.hadoop.hdfs.DistributedFileSystem$DirListingIterator.<init>(DistributedFileSystem.java:1062) at org.apache.hadoop.hdfs.DistributedFileSystem$DirListingIterator.<init>(DistributedFileSystem.java:1069) at org.apache.hadoop.hdfs.DistributedFileSystem$DirListingIterator.<init>(DistributedFileSystem.java:1040) at org.apache.hadoop.hdfs.DistributedFileSystem$23.doCall(DistributedFileSystem.java:1019) at org.apache.hadoop.hdfs.DistributedFileSystem$23.doCall(DistributedFileSystem.java:1015) at org.apache.hadoop.fs.FileSystemLinkResolver.resolve(FileSystemLinkResolver.java:81) at org.apache.hadoop.hdfs.DistributedFileSystem.listStatusIterator(DistributedFileSystem.java:1015) at org.apache.hadoop.yarn.server.timeline.EntityGroupFSTimelineStore.shouldCleanAppLogDir(EntityGroupFSTimelineStore.java:480)
> {code}
>
> Each time the thread gets scheduled, it is a different folder encountering the error. As a result, the thread is not able to clean all the old done directories, since it stops after this error.
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