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From "Tony Reix (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-6515) testPageRounder (org.apache.hadoop.hdfs.server.datanode.TestFsDatasetCache)
Date Tue, 28 Oct 2014 15:03:34 GMT

    [ https://issues.apache.org/jira/browse/HDFS-6515?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14186918#comment-14186918

Tony Reix commented on HDFS-6515:

Test report says:
but there are errors after:
 - Determining number of patched Findbugs warnings :
line 622:  2899 Killed enkins-slave/workspace/PreCommit-HDFS-Build@2/dev-support/test-patch.sh:
line 622:  2899 Killed 
 - Running tests:
 /bin/grep: /home/jenkins/jenkins-slave/workspace/PreCommit-HDFS-Build@2/../patchprocess/patch:
No such file or directory

 {color:red}-1 findbugs{color}.  The patch appears to cause Findbugs (version 2.0.3) to fail.

 - Checking the integrity of system test framework code.:
   mv: cannot stat '/home/jenkins/jenkins-slave/workspace/PreCommit-HDFS-Build@2/../patchprocess':
No such file or directory

I'm now running:
   mvn clean test findbugs:findbugs -DskipTests -DHadoopPatchProcess
in my environment, with trunk patched with 6515, in order to understand what's wrong.

[INFO] Apache Hadoop Project POM ......................... FAILURE [1:20.245s]
[ERROR] Failed to execute goal org.codehaus.mojo:findbugs-maven-plugin:2.3.2:findbugs (default-cli)
on project hadoop-project: Execution default-cli of goal org.codehaus.mojo:findbugs-maven-plugin:2.3.2:findbugs
failed: Plugin org.codehaus.mojo:findbugs-maven-plugin:2.3.2 or one of its dependencies could
not be resolved: Could not transfer artifact asm:asm-xml:jar:3.1 from/to central (http://repo.maven.apache.org/maven2):
Read timed out -> [Help 1]

Retesting with -X and Oracle 1.7 JVM instead of IBM JVM:
Result of: 
    mvn -X test findbugs:findbugs -DskipTests -DHadoopPatchProcess -l mvn.findbugs.OpenJDK.res
in my environment (Ubuntu 14.04/Intel, Maven 3.0.4) is :

> 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, 2.4.1
>         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: hadoop, test
>         Attachments: HDFS-6515-1.patch, HDFS-6515-2.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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