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Posted to common-dev@hadoop.apache.org by "Amareshwari Sriramadasu (JIRA)" <ji...@apache.org> on 2009/03/09 07:56:50 UTC

[jira] Updated: (HADOOP-5437) Unit test for jvm -reuse

     [ https://issues.apache.org/jira/browse/HADOOP-5437?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Amareshwari Sriramadasu updated HADOOP-5437:
--------------------------------------------

    Attachment: patch-5437.txt

Attaching the patch fixing the testcase.

The problem was: The configuration mapred.job.reuse.jvm.num.tasks wa set to -1, but never passed to cluster. Moreover, it should be job configuration, and not cluster configuration, since the configuration is a job-level configuration at tasktarcker.
With the patch I verified jvm reuse is on and each jvm runs multiple tasks.

> Unit test for jvm -reuse
> ------------------------
>
>                 Key: HADOOP-5437
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5437
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: mapred
>    Affects Versions: 0.19.0
>            Reporter: Amareshwari Sriramadasu
>            Priority: Minor
>             Fix For: 0.21.0
>
>         Attachments: patch-5437.txt
>
>
> TestMiniMRDFSSort.testMapReduceSortWithJvmReuse actually does not test jvm running multiple tasks. In the test, each jvm runs only one task.

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