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From "Hudson (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-8048) Allow merging of Credentials
Date Fri, 10 Feb 2012 00:26:57 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-8048?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13205098#comment-13205098

Hudson commented on HADOOP-8048:

Integrated in Hadoop-Hdfs-trunk-Commit #1781 (See [https://builds.apache.org/job/Hadoop-Hdfs-trunk-Commit/1781/])
    HADOOP-8048. Allow merging of Credentials (Daryn Sharp via tgraves)

tgraves : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1242616
Files : 
* /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/Credentials.java
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/security/TestCredentials.java

> 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-8048-2.patch, 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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