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Posted to commits@samza.apache.org by "Guozhang Wang (JIRA)" <ji...@apache.org> on 2015/06/12 19:59:01 UTC

[jira] [Commented] (SAMZA-697) Isolate Class Loader for user implemented Tasks

    [ https://issues.apache.org/jira/browse/SAMZA-697?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14583783#comment-14583783 ] 

Guozhang Wang commented on SAMZA-697:
-------------------------------------

Created reviewboard https://reviews.apache.org/r/35397/ against master.

> Isolate Class Loader for user implemented Tasks
> -----------------------------------------------
>
>                 Key: SAMZA-697
>                 URL: https://issues.apache.org/jira/browse/SAMZA-697
>             Project: Samza
>          Issue Type: Bug
>            Reporter: Guozhang Wang
>            Assignee: Guozhang Wang
>             Fix For: 0.10.0
>
>
> Today we use a single class loader for both framework classes as well as user code (StreamTask implementations), which could result in conflicts of dependencies.
> The approach is to use separate class loaders for framework classes and user instantiated classes. This approach has also been applied in Hadoop and Spark (MAPREDUCE-1700, SPARK-1870).



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