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https://issues.apache.org/jira/browse/YARN-53?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13461550#comment-13461550
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Vinod Kumar Vavilapalli commented on YARN-53:
---------------------------------------------
The update patch looks good, Bo! Particularly I like that we are not starting a
new server for looking up groups (which I somehow missed earlier). There is far
lesser code-duplication now, even without HADOOP-8805.
+1 for the patch. Tested on a single node. Committing this.
> Add protocol to YARN to support GetGroups
> -----------------------------------------
>
> Key: YARN-53
> URL: https://issues.apache.org/jira/browse/YARN-53
> Project: Hadoop YARN
> Issue Type: Bug
> Components: resourcemanager
> Reporter: Alejandro Abdelnur
> Assignee: Bo Wang
> Labels: patch
> Fix For: 2.0.0-alpha
>
> Attachments: MAPREDUCE-4268.patch, YARN-53.patch, YARN-53-v2.patch,
> YARN-53-v3.patch, YARN-53-v4.patch, YARN-53-v5.patch
>
>
> This is a regression from Hadoop1, as hadoop mrgroups fails with:
> {code}
> Exception in thread "main" java.lang.UnsupportedOperationException
> at
> org.apache.hadoop.mapred.tools.GetGroups.getProtocolAddress(GetGroups.java:50)
> at
> org.apache.hadoop.tools.GetGroupsBase.getUgmProtocol(GetGroupsBase.java:98)
> at org.apache.hadoop.tools.GetGroupsBase.run(GetGroupsBase.java:71)
> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:84)
> at org.apache.hadoop.mapred.tools.GetGroups.main(GetGroups.java:54)
> {code}
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