[jira] [Updated] (STORM-129) Keep Storm dependencies and user dependencies independent

["Rick Kellogg (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/STORM-129?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rick Kellogg updated STORM-129:
-------------------------------
    Component/s: storm-core

> Keep Storm dependencies and user dependencies independent
> ---------------------------------------------------------
>
>                 Key: STORM-129
>                 URL: https://issues.apache.org/jira/browse/STORM-129
>             Project: Apache Storm
>          Issue Type: Improvement
>          Components: storm-core
>            Reporter: James Xu
>              Labels: HighPriority
>
> https://github.com/nathanmarz/storm/issues/115
> For instance, user classes should be able to use a different version of a library than Storm uses. Users have run into issues with Hibernate since Hibernate requires asm 1.4 while Storm requires asm 3.3 (through Kryo).
> This is tricky since the Storm code and user code run together. e.g., when a user does an emit call, that calls into Storm code which calls into Kryo, 0mq, etc. It's not clear how to keep the dependencies separate.
> Possible technologies to look at include OSGi and JPF. However, there is a serious concern about the complexity and overhead of these approaches.
> Hadoop has the exact same problem, so it's worth looking to see if it does anything to address this. AFAIK, it doesn't.



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