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From "Andras Bokor (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-14231) Using parentheses is not allowed in auth_to_local regex
Date Fri, 24 Mar 2017 16:06:41 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-14231?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15940627#comment-15940627

Andras Bokor commented on HADOOP-14231:

Uploading patch 01. It removes the closing parentheses restriction and adds some JUnit test.

> 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
>         Attachments: HADOOP-14231.01.patch
> 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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