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https://issues.apache.org/jira/browse/TEZ-3488?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15615891#comment-15615891
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Hitesh Shah commented on TEZ-3488:
----------------------------------
The error seems to indicate a YARN ResourceManager issue. The config above is
only for yarn timeline server.
Can you try the following too?
{code}
<property>
<name>yarn.resourcemanager.webapp.cross-origin.enabled</name>
<value>true</value>
</property>
<property>
<name>yarn.webservices.http-cross-origin.enabled</name>
<value>true</value>
</property>
{code}
> Tez UI Vertex 404
> -----------------
>
> Key: TEZ-3488
> URL: https://issues.apache.org/jira/browse/TEZ-3488
> Project: Apache Tez
> Issue Type: Bug
> Affects Versions: 0.8.4
> Reporter: George Liaw
>
> When we're trying to view vertices for a running job, the Vertex page will
> show a 404 error saying:
> "Could not retrieve expected data from @ <url>"
> And the Vertex Counter page will show:
> "Counters unavailable"
> and
> "Error code: Unknown, message: Resource Manager (RM) out of reach. Either
> it's down or CORS is not enabled"
> The RMs are up and CORS is enabled. If we go to the displayed url, we get the
> expected XML with the application info. When the DAG finishes running, those
> errors go away and the pages display fine. Any idea what's going on here?
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