[jira] [Commented] (SAMZA-308) Allow the container JVM to be customized

["Yan Fang (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SAMZA-308?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14141422#comment-14141422 ] 

Yan Fang commented on SAMZA-308:
--------------------------------

rb: https://reviews.apache.org/r/25851/

1. added two properties, task.java.home and yarn.am.java.home
2. added the configuration table
3. also removed the out-of-date statement in task.opt as mentioned in SAMZA-109

Tested in 6-node cluster which runs java7. By setting the properties to java8 path, Samza can run in java8 JVM.

> Allow the container JVM to be customized
> ----------------------------------------
>
>                 Key: SAMZA-308
>                 URL: https://issues.apache.org/jira/browse/SAMZA-308
>             Project: Samza
>          Issue Type: New Feature
>          Components: yarn
>    Affects Versions: 0.7.0
>            Reporter: Martin Kleppmann
>            Assignee: Yan Fang
>              Labels: newbie
>
> When running a container, the JAVA_HOME environment variable is currently inherited from the parent process (the JobRunner in the case of LocalJobFactory, the NodeManager in the case of YarnJobFactory). It would be nice to allow a job to specify a JAVA_HOME path as part of its configuration, so that a job can choose to run in a particular JVM version (e.g. allowing the YARN cluster and the jobs' JVM versions to be updated independently from each other).



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