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From "Andras Bokor (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HADOOP-14231) Using parentheses is not allowed in auth_to_local regex
Date Fri, 24 Mar 2017 16:02:41 GMT
Andras Bokor created HADOOP-14231:
-------------------------------------

             Summary: Using parentheses is not allowed in auth_to_local regex
                 Key: HADOOP-14231
                 URL: https://issues.apache.org/jira/browse/HADOOP-14231
             Project: Hadoop Common
          Issue Type: Improvement
            Reporter: Andras Bokor
            Assignee: Andras Bokor
            Priority: Minor


I tried to set the following  property for auth_to_local property:
{code}"RULE:[2:$1]((n|d)n)s/.*/hdfs//{code}
but I got the following exception:
{code}Exception in thread "main" java.util.regex.PatternSyntaxException: Unclosed group near
index 9
(nn|dn|jn{code}

I found that this occurs because {{ruleParser}} in {{org.apache.hadoop.security.authentication.util.KerberosName}}
excludes closing parentheses.

I do not really see the value of excluding parentheses (do I miss something?) so I would remove
this restriction to be able to use more regex functionalities.



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