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https://issues.apache.org/jira/browse/HADOOP-9852?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13733722#comment-13733722
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Hadoop QA commented on HADOOP-9852:
-----------------------------------
{color:green}+1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12596875/HADOOP-9852.patch
against trunk revision .
{color:green}+1 @author{color}. The patch does not contain any @author
tags.
{color:green}+1 tests included{color}. The patch appears to include 1 new
or modified test files.
{color:green}+1 javac{color}. The applied patch does not increase the
total number of javac compiler warnings.
{color:green}+1 javadoc{color}. The javadoc tool did not generate any
warning messages.
{color:green}+1 eclipse:eclipse{color}. The patch built with
eclipse:eclipse.
{color:green}+1 findbugs{color}. The patch does not introduce any new
Findbugs (version 1.3.9) warnings.
{color:green}+1 release audit{color}. The applied patch does not increase
the total number of release audit warnings.
{color:green}+1 core tests{color}. The patch passed unit tests in
hadoop-common-project/hadoop-common.
{color:green}+1 contrib tests{color}. The patch passed contrib unit tests.
Test results:
https://builds.apache.org/job/PreCommit-HADOOP-Build/2947//testReport/
Console output:
https://builds.apache.org/job/PreCommit-HADOOP-Build/2947//console
This message is automatically generated.
> UGI login user keytab and principal should not be static
> --------------------------------------------------------
>
> Key: HADOOP-9852
> URL: https://issues.apache.org/jira/browse/HADOOP-9852
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: security
> Affects Versions: 2.0.0-alpha, 3.0.0
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Attachments: HADOOP-9852.patch
>
>
> The static keytab and principal for the login user is problematic. The login
> conf explicitly references these statics. As a result,
> loginUserFromKeytabAndReturnUGI is unnecessarily synch'ed on the class to
> swap out the login user's keytab and principal, login, then restore the
> keytab/principal. This method's synch blocks further de-synching of other
> methods.
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