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Posted to yarn-issues@hadoop.apache.org by "xuekang (JIRA)" <ji...@apache.org> on 2018/05/17 07:32:00 UTC
[jira] [Updated] (YARN-8311) Too many ports are occupied when AM UI
is accessed
[ https://issues.apache.org/jira/browse/YARN-8311?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
xuekang updated YARN-8311:
--------------------------
Attachment: YARN-8311.patch
> Too many ports are occupied when AM UI is accessed
> --------------------------------------------------
>
> Key: YARN-8311
> URL: https://issues.apache.org/jira/browse/YARN-8311
> Project: Hadoop YARN
> Issue Type: Bug
> Components: webapp
> Affects Versions: 2.7.2
> Reporter: xuekang
> Priority: Major
> Attachments: YARN-8311.patch
>
>
> If someone open the AM UI when the app is running, the RM periodically fetch the page from AM and return to the user. But the connection between RM and AM is created every time and is not closed instantly. So after some time, lots of ports are occupied, especially for long-running services. When another access comes, there may be an error:
> 2018-05-17 11:33:14,567 INFO org.apache.http.impl.client.DefaultHttpClient: I/O exception (java.net.BindException) caught when connecting to the target host: Address already in use
>
> Actually, it is the same problem as YARN-1703 , but I don't know why it was cancelled by YARN-3217.
>
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