[
https://issues.apache.org/jira/browse/YARN-2803?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14195451#comment-14195451
]
Chris Nauroth commented on YARN-2803:
-------------------------------------
Here is the stack trace from a failure.
{code}
testDistributedCache(org.apache.hadoop.mapreduce.v2.TestMRJobs) Time elapsed: 1
6.844 sec <<< FAILURE!
java.lang.AssertionError: null
at org.junit.Assert.fail(Assert.java:86)
at org.junit.Assert.assertTrue(Assert.java:41)
at org.junit.Assert.assertTrue(Assert.java:52)
at
org.apache.hadoop.mapreduce.v2.TestMRJobs._testDistributedCache(TestMRJobs.java:881)
at
org.apache.hadoop.mapreduce.v2.TestMRJobs.testDistributedCache(TestMRJobs.java:891)
{code}
The task log shows the assertion failing when it tries to find
job.jar/lib/lib2.jar.
{code}
2014-11-03 15:36:33,652 FATAL [main] org.apache.hadoop.mapred.YarnChild: Error
running child : java.lang.AssertionError
at org.junit.Assert.fail(Assert.java:86)
at org.junit.Assert.assertTrue(Assert.java:41)
at org.junit.Assert.assertNotNull(Assert.java:621)
at org.junit.Assert.assertNotNull(Assert.java:631)
at
org.apache.hadoop.mapreduce.v2.TestMRJobs$DistributedCacheChecker.setup(TestMRJobs.java:764)
at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:142)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:784)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:341)
at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:169)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:415)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1640)
at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:164)
{code}
> MR distributed cache not working correctly on Windows after NodeManager
> privileged account changes.
> ---------------------------------------------------------------------------------------------------
>
> Key: YARN-2803
> URL: https://issues.apache.org/jira/browse/YARN-2803
> Project: Hadoop YARN
> Issue Type: Bug
> Components: nodemanager
> Reporter: Chris Nauroth
> Priority: Critical
>
> This problem is visible by running {{TestMRJobs#testDistributedCache}} or
> {{TestUberAM#testDistributedCache}} on Windows. Both tests fail. Running
> git bisect, I traced it to the YARN-2198 patch to remove the need to run
> NodeManager as a privileged account. The tests started failing when that
> patch was committed.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
