[jira] [Commented] (MAPREDUCE-6090) mapred hsadmin getGroups fails to connect in some cases

["Robert Kanter (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/MAPREDUCE-6090?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14134710#comment-14134710 ] 

Robert Kanter commented on MAPREDUCE-6090:
------------------------------------------

By default, only core-default and core-site are loaded unless you end up calling something else that loads other site/default files.  In this call, we try to get the address from the Configuration before something else (UserGroupInformation) causes mapred-default/site to be loaded, so we get the default address, which is 0.0.0.0:10033.  In the case where we don't pass any user argument, it determines the current user by calling a method in UserGroupInformation, which causes mapred-default/site to be loaded; and this happens before we try to get the address -- so it works in this case.

> mapred hsadmin getGroups fails to connect in some cases
> -------------------------------------------------------
>
>                 Key: MAPREDUCE-6090
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6090
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: client
>    Affects Versions: 2.5.1
>            Reporter: Robert Kanter
>            Assignee: Robert Kanter
>
> If you do {{mapred hsadmin -getGroups}} it works fine (assuming {{mapreduce.jobhistory.admin.address}} is set properly in mapred-site.xml).  
> But if you do {{mapred hsadmin -getGroups foo_user}}, it will keep retrying to connect to localhost:
> {noformat}
> INFO ipc.Client: Retrying connect to server: 0.0.0.0/0.0.0.0:10033. Already tried 0 time(s); retry policy is RetryUpToMaximumCountWithFixedSleep(maxRetries=10, sleepTime=1000 MILLISECONDS)
> ...
> {noformat}



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