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https://issues.apache.org/jira/browse/YARN-6069?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15874915#comment-15874915
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Varun Saxena edited comment on YARN-6069 at 2/20/17 6:48 PM:
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Thanks [~rohithsharma] for the patch. Core changes look fine to me. Few
comments on the .md file
# "See also
\[HttpAuthentication\](../../hadoop-project-dist/hadoop-common/HttpAuthentication.html)"
jumps to the page. We can directly jump to CORS section in the page by
mentioning
{{../../hadoop-project-dist/hadoop-common/HttpAuthentication.html#CORS]}
# Maybe modify the documentation to something like under?
{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 other configurations used for cross-origin support, refer to
[HttpAuthentication](../../hadoop-project-dist/hadoop-common/HttpAuthentication.html#CORS).
Please note that for timeline service, configuration property,
yarn.timeline-service.http-cross-origin.enabled, if set to true, overrides
configuration property hadoop.http.cross-origin.enabled. Both
yarn.timeline-service.http-cross-origin.enabled and
hadoop.http.cross-origin.enabled must be set to false to disable cross-origin
support.
{code}
Also yarn.timeline-service.http-cross-origin.enabled is not present in
yarn-default.xml from before. Should it be there?
was (Author: varun_saxena):
Thanks [~rohithsharma] for the patch. Core changes look fine to me. Few
comments on the .md file
# "See also
\[HttpAuthentication\](../../hadoop-project-dist/hadoop-common/HttpAuthentication.html)"
jumps to the page. We can directly jump to CORS section in the page by
mentioning
{{../../hadoop-project-dist/hadoop-common/HttpAuthentication.html#CORS]}
# Maybe modify the documentation to something like under?
{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 other configurations used for cross-origin support, refer to
[HttpAuthentication](../../hadoop-project-dist/hadoop-common/HttpAuthentication.html#CORS).
Please note that for timeline service, configuration property,
hadoop.http.cross-origin.enabled is not used.
{code}
Also yarn.timeline-service.http-cross-origin.enabled is not present in
yarn-default.xml from before. Should it be there?
> 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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