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https://issues.apache.org/jira/browse/YARN-8311?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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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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