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Date: Mon, 26 Dec 2011 09:05:30 +0000 (UTC)
From: "Ravi Prakash (Commented) (JIRA)" <jira@apache.org>
To: mapreduce-issues@hadoop.apache.org
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Subject: [jira] [Commented] (MAPREDUCE-3462) Job submission failing in JUnit
 tests
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    [ https://issues.apache.org/jira/browse/MAPREDUCE-3462?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13175916#comment-13175916 ] 

Ravi Prakash commented on MAPREDUCE-3462:
-----------------------------------------

Also, I'm still ignorant of the change which made the tests start to fail. I should probably understand better the reasons for that change before proposing a more generalized fix. For now, couldn't these tests passing unblock you?
                
> Job submission failing in JUnit tests
> -------------------------------------
>
>                 Key: MAPREDUCE-3462
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3462
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv2, test
>    Affects Versions: 0.23.0
>            Reporter: Amar Kamat
>            Assignee: Ravi Prakash
>            Priority: Blocker
>              Labels: junit, test
>         Attachments: 3462.trunk.patch, MAPREDUCE-3462.branch-0.23.patch
>
>
> When I run JUnit tests (e.g. TestDistCacheEmulation, TestSleepJob and TestCompressionEmulationUtils), I see job submission failing with the following error:
> {noformat}
> java.lang.IllegalStateException: Variable substitution depth too large: 20 ${fs.default.name}
>         at org.apache.hadoop.conf.Configuration.substituteVars(Configuration.java:551)
>         at org.apache.hadoop.conf.Configuration.get(Configuration.java:569)
>         at org.apache.hadoop.conf.Configuration.getStrings(Configuration.java:1020)
>         at org.apache.hadoop.mapreduce.JobSubmitter.populateTokenCache(JobSubmitter.java:564)
>         at org.apache.hadoop.mapreduce.JobSubmitter.submitJobInternal(JobSubmitter.java:353)
>         at org.apache.hadoop.mapreduce.Job$2.run(Job.java:1159)
>         at org.apache.hadoop.mapreduce.Job$2.run(Job.java:1156)
>         at java.security.AccessController.doPrivileged(Native Method)
>         at javax.security.auth.Subject.doAs(Subject.java:396)
>         at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1152)
>         at org.apache.hadoop.mapreduce.Job.submit(Job.java:1156)
>         at org.apache.hadoop.mapreduce.Job.waitForCompletion(Job.java:1176)
>         at org.apache.hadoop.mapred.gridmix.Gridmix.launchGridmixJob(Gridmix.java:190)
>         at org.apache.hadoop.mapred.gridmix.Gridmix.writeInputData(Gridmix.java:150)
>         at org.apache.hadoop.mapred.gridmix.Gridmix.start(Gridmix.java:425)
>         at org.apache.hadoop.mapred.gridmix.Gridmix.runJob(Gridmix.java:380)
>         at org.apache.hadoop.mapred.gridmix.Gridmix.access$000(Gridmix.java:56)
>         at org.apache.hadoop.mapred.gridmix.Gridmix$1.run(Gridmix.java:313)
>         at org.apache.hadoop.mapred.gridmix.Gridmix$1.run(Gridmix.java:311)
>         at java.security.AccessController.doPrivileged(Native Method)
>         at javax.security.auth.Subject.doAs(Subject.java:396)
>         at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1152)
>         at org.apache.hadoop.mapred.gridmix.Gridmix.run(Gridmix.java:311)
> {noformat}

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