[ 
https://issues.apache.org/jira/browse/HDFS-2966?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13226082#comment-13226082
 ] 

Hudson commented on HDFS-2966:
------------------------------

Integrated in Hadoop-Mapreduce-trunk-Commit #1865 (See 
[https://builds.apache.org/job/Hadoop-Mapreduce-trunk-Commit/1865/])
    HDFS-2966 (Revision 1298820)

     Result = ABORTED
stevel : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1298820
Files : 
* /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
* 
/hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/metrics/TestNameNodeMetrics.java

                
> TestNameNodeMetrics tests can fail under load
> ---------------------------------------------
>
>                 Key: HDFS-2966
>                 URL: https://issues.apache.org/jira/browse/HDFS-2966
>             Project: Hadoop HDFS
>          Issue Type: Bug
>          Components: test
>    Affects Versions: 0.24.0
>         Environment: OS/X running intellij IDEA, firefox, winxp in a 
> virtualbox.
>            Reporter: Steve Loughran
>            Assignee: Steve Loughran
>            Priority: Minor
>             Fix For: 0.24.0
>
>         Attachments: HDFS-2966.patch, HDFS-2966.patch, HDFS-2966.patch, 
> HDFS-2966.patch
>
>
> I've managed to recreate HDFS-540 and HDFS-2434 by the simple technique of 
> running the HDFS tests on a desktop with out enough memory for all the 
> programs trying to run. Things got swapped out and the tests failed as the DN 
> heartbeats didn't come in on time.
> the tests both rely on {{waitForDeletion()}} to block the tests until the 
> delete operation has completed, but all it does is sleep for the same number 
> of seconds as there are datanodes. This is too brittle -it may work on a 
> lightly-loaded system, but not on a system under heavy load where it is 
> taking longer to replicate than expect.
> Immediate fix: double, triple, the sleep time?
> Better fix: have the thread block until all the DN heartbeats have finished.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: 
https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira

        

Reply via email to