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Posted to yarn-issues@hadoop.apache.org by "Tarun Parimi (JIRA)" <ji...@apache.org> on 2019/04/02 05:57:00 UTC
[jira] [Reopened] (YARN-9336) JobHistoryServer leaks CLOSE_WAIT tcp
connections when using LogAggregationIndexedFileController
[ https://issues.apache.org/jira/browse/YARN-9336?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Tarun Parimi reopened YARN-9336:
--------------------------------
Reopening to submit patch for branch-2.9 again
> JobHistoryServer leaks CLOSE_WAIT tcp connections when using LogAggregationIndexedFileController
> ------------------------------------------------------------------------------------------------
>
> Key: YARN-9336
> URL: https://issues.apache.org/jira/browse/YARN-9336
> Project: Hadoop YARN
> Issue Type: Bug
> Components: log-aggregation
> Affects Versions: 2.9.0
> Reporter: Tarun Parimi
> Assignee: Tarun Parimi
> Priority: Major
> Fix For: 3.3.0
>
> Attachments: YARN-9336-branch-2.9.001.patch, YARN-9336.001.patch, YARN-9336.002.patch
>
>
> The JobHistoryServer is leaking CLOSE_WAIT connections to DataNodes whenever viewing a huge log file in JobhistoryServer. This happens only when the below is configured.
> {code:java}
> yarn.log-aggregation.file-formats=IndexedFormat
> yarn.log-aggregation.file-controller.IndexedFormat.class=org.apache.hadoop.yarn.logaggregation.filecontroller.ifile.LogAggregationIndexedFileController
> yarn.log.server.url=http://jobhistory-host:19888/jobhistory/logs
> {code}
> On investigation, I found that the FSDataInputStream is not closed in org.apache.hadoop.yarn.logaggregation.filecontroller.ifile.IndexedFileAggregatedLogsBlock . Since this block is called every time the Jobhistory page displays the logs, CLOSE_WAIT connections to DataNodes keep on increasing in JobHistoryServer.
>
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