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https://issues.apache.org/jira/browse/MAPREDUCE-3850?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13271374#comment-13271374
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Hudson commented on MAPREDUCE-3850:
-----------------------------------
Integrated in Hadoop-Hdfs-0.23-Build #252 (See
[https://builds.apache.org/job/Hadoop-Hdfs-0.23-Build/252/])
svn merge -c 1335585 FIXES: MAPREDUCE-3850. Avoid redundant calls for
tokens in TokenCache (Daryn Sharp via bobby) (Revision 1335589)
Result = UNSTABLE
bobby : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1335589
Files :
* /hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/CHANGES.txt
*
/hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/security/TokenCache.java
*
/hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/test/java/org/apache/hadoop/mapreduce/security/TestTokenCache.java
> Avoid redundant calls for tokens in TokenCache
> ----------------------------------------------
>
> Key: MAPREDUCE-3850
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-3850
> Project: Hadoop Map/Reduce
> Issue Type: Improvement
> Components: security
> Affects Versions: 0.23.1, 0.24.0
> Reporter: Daryn Sharp
> Assignee: Daryn Sharp
> Fix For: 0.23.3, 2.0.0, 3.0.0
>
> Attachments: MAPREDUCE-3850-1.patch, MAPREDUCE-3850.patch,
> MAPREDUCE-3850.patch
>
>
> The {{TokenCache}} will repeatedly call the same filesystem for tokens. This
> is inefficient and can easily be changed to only call each filesystem once.
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