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From "Harsh J (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-6515) testPageRounder (org.apache.hadoop.hdfs.server.datanode.TestFsDatasetCache)
Date Mon, 27 Oct 2014 07:46:34 GMT

     [ https://issues.apache.org/jira/browse/HDFS-6515?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Harsh J updated HDFS-6515:
--------------------------
    Environment: 
Linux on PPC64
Tested with Hadoop 3.0.0 SNAPSHOT, on RHEL 6.5, on Ubuntu 14.04, on Fedora 19, using mvn -Dtest=TestFsDatasetCache#testPageRounder
-X test

  was:Linux on PPC64


> testPageRounder   (org.apache.hadoop.hdfs.server.datanode.TestFsDatasetCache)
> -----------------------------------------------------------------------------
>
>                 Key: HDFS-6515
>                 URL: https://issues.apache.org/jira/browse/HDFS-6515
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: datanode
>    Affects Versions: 3.0.0, 2.4.0
>         Environment: Linux on PPC64
> Tested with Hadoop 3.0.0 SNAPSHOT, on RHEL 6.5, on Ubuntu 14.04, on Fedora 19, using
mvn -Dtest=TestFsDatasetCache#testPageRounder -X test
>            Reporter: Tony Reix
>            Priority: Blocker
>              Labels: test
>         Attachments: HDFS-6515-1.patch
>
>
> I have an issue with test :
>    testPageRounder
>   (org.apache.hadoop.hdfs.server.datanode.TestFsDatasetCache)
> on Linux/PowerPC.
> On Linux/Intel, test runs fine.
> On Linux/PowerPC, I have:
> testPageRounder(org.apache.hadoop.hdfs.server.datanode.TestFsDatasetCache)  Time elapsed:
64.037 sec  <<< ERROR!
> java.lang.Exception: test timed out after 60000 milliseconds
> Looking at details, I see that some "Failed to cache " messages appear in the traces.
Only 10 on Intel, but 186 on PPC64.
> On PPC64, it looks like some thread is waiting for something that never happens, generating
a TimeOut.
> I'm now using IBM JVM, however I've just checked that the issue also appears with OpenJDK.
> I'm now using Hadoop latest, however, the issue appeared within Hadoop 2.4.0 .
> I need help for understanding what the test is doing, what traces are expected, in order
to understand what/where is the root cause.



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