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https://issues.apache.org/jira/browse/HADOOP-10173?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13860251#comment-13860251
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Hudson commented on HADOOP-10173:
---------------------------------
SUCCESS: Integrated in Hadoop-trunk-Commit #4947 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/4947/])
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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