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https://issues.apache.org/jira/browse/YARN-6069?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15875559#comment-15875559
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Rohith Sharma K S commented on YARN-6069:
-----------------------------------------
bq. Also yarn.timeline-service.http-cross-origin.enabled is not present in
yarn-default.xml from before. Should it be there?
There are tests to validate yarnconfiguration vs yarn-default.xml. But it is
surprising that why test is not failing!! We can add this configuration in
yarn-default.xml.
For documentation, the below will be added. Are you fine with it?
{code}
To enable cross-origin support (CORS) for the Timeline Service v.2, please set
the following configuration parameters:
In core-site.xml, add
org.apache.hadoop.security.HttpCrossOriginFilterInitializer to
hadoop.http.filter.initializers.
In yarn-site.xml, set yarn.timeline-service.http-cross-origin.enabled to true.
For more configurations used for cross-origin support, refer to
[HttpAuthentication](../../hadoop-project-dist/hadoop-common/HttpAuthentication.html#CORS).
Please note that yarn.timeline-service.http-cross-origin.enabled, if set to
true, overrides hadoop.http.cross-origin.enabled.
{code}
> CORS support in timeline v2
> ---------------------------
>
> Key: YARN-6069
> URL: https://issues.apache.org/jira/browse/YARN-6069
> Project: Hadoop YARN
> Issue Type: Sub-task
> Components: timelinereader
> Reporter: Sreenath Somarajapuram
> Assignee: Rohith Sharma K S
> Attachments: YARN-6069-YARN-5355.0001.patch,
> YARN-6069-YARN-5355.0002.patch, YARN-6069-YARN-5355.0003.patch
>
>
> By default the browser prevents accessing resources from multiple domains. In
> most cases the UIs would be loaded form a domain different from that of
> timeline server. Hence without CORS support, it would be difficult for the
> UIs to load data from timeline v2.
> YARN-2277 must provide more info on the implementation.
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