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https://issues.apache.org/jira/browse/HADOOP-6907?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12905181#action_12905181
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Hadoop QA commented on HADOOP-6907:
-----------------------------------
-1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12453460/c6907-18.patch
against trunk revision 991038.
+1 @author. The patch does not contain any @author tags.
+1 tests included. The patch appears to include 6 new or modified tests.
-1 javadoc. The javadoc tool appears to have generated 1 warning messages.
+1 javac. The applied patch does not increase the total number of javac
compiler warnings.
+1 findbugs. The patch does not introduce any new Findbugs warnings.
+1 release audit. The applied patch does not increase the total number of
release audit warnings.
+1 core tests. The patch passed core unit tests.
+1 contrib tests. The patch passed contrib unit tests.
+1 system tests framework. The patch passed system tests framework compile.
Test results:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch-h4.grid.sp2.yahoo.net/665/testReport/
Findbugs warnings:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch-h4.grid.sp2.yahoo.net/665/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch-h4.grid.sp2.yahoo.net/665/artifact/trunk/build/test/checkstyle-errors.html
Console output:
http://hudson.zones.apache.org/hudson/job/Hadoop-Patch-h4.grid.sp2.yahoo.net/665/console
This message is automatically generated.
> Rpc client doesn't use the per-connection conf to figure out server's
> Kerberos principal
> ----------------------------------------------------------------------------------------
>
> Key: HADOOP-6907
> URL: https://issues.apache.org/jira/browse/HADOOP-6907
> Project: Hadoop Common
> Issue Type: Bug
> Components: ipc, security
> Reporter: Kan Zhang
> Assignee: Kan Zhang
> Attachments: c6907-12.patch, c6907-15.patch, c6907-16.patch,
> c6907-18.patch
>
>
> Currently, RPC client caches the conf that was passed in to its constructor
> and uses that same conf (or values obtained from it) for every connection it
> sets up. This is not sufficient for security since each connection needs to
> figure out server's Kerberos principal on a per-connection basis. It's not
> reasonable to expect the first conf used by a user to contain all the
> Kerberos principals that her future connections will ever need. Or worse, if
> her first conf contains an incorrect principal name, it will prevent the user
> from connecting to the server even if she later on passes in a correct conf
> on retry (by calling RPC.getProxy()).
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