YUBI LEE created HADOOP-18666:
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Summary: A whitelist of endpoints to skip Kerberos authentication
doesn't work for ResourceManager and Job History Server
Key: HADOOP-18666
URL: https://issues.apache.org/jira/browse/HADOOP-18666
Project: Hadoop Common
Issue Type: Bug
Components: security
Reporter: YUBI LEE
Thanks to HADOOP-16527, we can add a whitelist of endpoints to skip Kerberos
authentication such as {{/isActive}}, {{/jmx}}, {{/prom}}.
However, I found that ResourceManager and Job History Server doesn't repect
{{hadoop.http.authentication.kerberos.endpoint.whitelist}}.
To workaround this issue for ResourceManager, set
{{yarn.resourcemanager.webapp.delegation-token-auth-filter.enabled=true}} in
yarn-site.xml.
However, there is no workaround for Job History Server.
This bug is caused by {{HttpServer2#initSpnego}} call without proper
configurations which starts with "{{hadoop.http.authentication.}}".
I will make a PR soon.
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