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From "Dave Marion (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ACCUMULO-708) Modify ClassLoader to support different applications / multi-tenancy
Date Mon, 29 Oct 2012 22:08:12 GMT

    [ https://issues.apache.org/jira/browse/ACCUMULO-708?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13486416#comment-13486416
] 

Dave Marion commented on ACCUMULO-708:
--------------------------------------

bq. Using `instance.dfs.dir`/{classpath,lib,whatever} would allow multiple separate instances
to be run over the same HDFS instance which could be very useful.

This classloader would allow it, just like the previous one. I'm not sure I can think of any
good reasons to run multiple instances on the same cluster.
                
> Modify ClassLoader to support different applications / multi-tenancy
> --------------------------------------------------------------------
>
>                 Key: ACCUMULO-708
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-708
>             Project: Accumulo
>          Issue Type: Improvement
>          Components: start
>            Reporter: Dave Marion
>            Assignee: Dave Marion
>              Labels: classloader
>             Fix For: 1.5.0
>
>         Attachments: ACCUMULO-708-1.patch
>
>   Original Estimate: 24h
>          Time Spent: 33h
>  Remaining Estimate: 0h
>
> I'd like to expand the current classloader to support loading classes from HDFS and different
application contexts. I'll be modifying the ticket as the idea matures.

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