[jira] [Created] (HDFS-7546) Document, and set an accepting default for dfs.namenode.kerberos.principal.pattern

["Harsh J (JIRA)" <ji...@apache.org>]

Harsh J created HDFS-7546:
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             Summary: Document, and set an accepting default for dfs.namenode.kerberos.principal.pattern
                 Key: HDFS-7546
                 URL: https://issues.apache.org/jira/browse/HDFS-7546
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: security
            Reporter: Harsh J
            Priority: Minor


This config is used in the SaslRpcClient, and the no-default breaks cross-realm trust principals being used at clients.

Current location: https://github.com/apache/hadoop/blob/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/SaslRpcClient.java#L309

The config should be documented and the default should be set to * to preserve the prior-to-introduction behaviour.



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