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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-10173) Remove UGI from DIGEST-MD5 SASL server creation
Date Fri, 03 Jan 2014 14:48:16 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-10173?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13861560#comment-13861560
] 

Hudson commented on HADOOP-10173:
---------------------------------

SUCCESS: Integrated in Hadoop-Mapreduce-trunk #1658 (See [https://builds.apache.org/job/Hadoop-Mapreduce-trunk/1658/])
HADOOP-10173. Remove UGI from DIGEST-MD5 SASL server creation. Contributed by Daryn Sharp.
(kihwal: http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1554815)
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/security/SaslRpcServer.java


> Remove UGI from DIGEST-MD5 SASL server creation
> -----------------------------------------------
>
>                 Key: HADOOP-10173
>                 URL: https://issues.apache.org/jira/browse/HADOOP-10173
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: ipc
>    Affects Versions: 0.23.0, 3.0.0, 2.4.0
>            Reporter: Daryn Sharp
>            Assignee: Daryn Sharp
>            Priority: Critical
>             Fix For: 3.0.0, 2.4.0
>
>         Attachments: HADOOP-10173.patch
>
>
> Instantiation of SASL server instances within the readers threads is performed within
a {{UGI.getCurrentUser().doAs}}.  {{getCurrentUser}} is synchronized, and doAs also degrades
performance.  GSSAPI (kerberos) requires instantiation within a doAs, but DIGEST-MD5 (token)
does not.



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