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Date: Thu, 9 Feb 2012 17:44:05 +0000 (UTC)
From: "Hadoop QA (Commented) (JIRA)" <jira@apache.org>
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Subject: [jira] [Commented] (HADOOP-8048) Allow merging of Credentials
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    [ https://issues.apache.org/jira/browse/HADOOP-8048?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13204685#comment-13204685 ] 

Hadoop QA commented on HADOOP-8048:
-----------------------------------

+1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12513976/HADOOP-8048.patch
  against trunk revision .

    +1 @author.  The patch does not contain any @author tags.

    +1 tests included.  The patch appears to include 3 new or modified tests.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    +1 javac.  The applied patch does not increase the total number of javac compiler warnings.

    +1 eclipse:eclipse.  The patch built with eclipse:eclipse.

    +1 findbugs.  The patch does not introduce any new Findbugs (version 1.3.9) warnings.

    +1 release audit.  The applied patch does not increase the total number of release audit warnings.

    +1 core tests.  The patch passed unit tests in .

    +1 contrib tests.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-HADOOP-Build/579//testReport/
Console output: https://builds.apache.org/job/PreCommit-HADOOP-Build/579//console

This message is automatically generated.
                
> Allow merging of Credentials
> ----------------------------
>
>                 Key: HADOOP-8048
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8048
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: util
>    Affects Versions: 0.24.0, 0.23.1
>            Reporter: Daryn Sharp
>            Assignee: Daryn Sharp
>         Attachments: HADOOP-8048.patch
>
>
> There is an existing {{Credentials#addAll}} which combines two {{Credentials}}, but it overwrites all existing {{Credentials}}.  There should be a {{Credentials#mergeAll}} that will not overwrite.  This will facility the cleanup of code in {{TokenCache}} denoted with:
> {code}
> //TODO: Need to come up with a better place to put
> //this block of code to do with reading the file
> {code}
> The token cache basically needs to merge the contents of a binary credentials file when it fails to find a token.  Performing the merge within {{Credentials}} is cleaner, and will break the cross-component dependency whereby the {{TokenCache}} currently has to have intimate knowledge of how the {{FileSystem}} will key tokens in the cache.

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