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Posted to common-dev@hadoop.apache.org by "Devaraj Das (JIRA)" <ji...@apache.org> on 2009/05/01 09:29:31 UTC

[jira] Updated: (HADOOP-5425) JVM reuse across task types

     [ https://issues.apache.org/jira/browse/HADOOP-5425?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Devaraj Das updated HADOOP-5425:
--------------------------------

    Attachment: 5425.1.patch

Straightforward patch. The patch removes the JvmManager's internal class JvmManagerForType and all the methods defined there are now accessible via JvmManager. The patch looks big mainly because of indentation changes.

> JVM reuse across task types
> ---------------------------
>
>                 Key: HADOOP-5425
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5425
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: mapred
>            Reporter: Vinod K V
>         Attachments: 5425.1.patch
>
>
> Currently, JVM-reuse is across tasks of same type of the same job, i.e. JVMs are kind of marked as map-JVMs and reduce JVMs. May be we can reuse JVMs across tasks of different types but of the same job.

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