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Posted to hdfs-issues@hadoop.apache.org by "ASF GitHub Bot (Jira)" <ji...@apache.org> on 2022/09/13 17:51:00 UTC
[jira] [Commented] (HDFS-16686) GetJournalEditServlet fails to authorize valid Kerberos request
[ https://issues.apache.org/jira/browse/HDFS-16686?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17603694#comment-17603694 ]
ASF GitHub Bot commented on HDFS-16686:
---------------------------------------
sunchao merged PR #4794:
URL: https://github.com/apache/hadoop/pull/4794
> GetJournalEditServlet fails to authorize valid Kerberos request
> ---------------------------------------------------------------
>
> Key: HDFS-16686
> URL: https://issues.apache.org/jira/browse/HDFS-16686
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: journal-node
> Affects Versions: 3.4.0, 3.3.9
> Environment: Running in Kubernetes using Java 11 in an HA configuration. JournalNodes run on separate pods and have their own Kerberos principal "jn/<hostname>@<realm>".
> Reporter: Steve Vaughan
> Assignee: Steve Vaughan
> Priority: Major
> Labels: pull-request-available
> Fix For: 3.4.0
>
>
> GetJournalEditServlet uses request.getRemoteuser() to determine the remoteShortName for Kerberos authorization, which fails to match when the JournalNode uses its own Kerberos principal (e.g. jn/<hostname>@<realm>).
> This can be fixed by using the UserGroupInformation provided by the base DfsServlet class using the getUGI(request, conf) call.
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