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From "Lars Hofhansl (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-6527) Make custom filters plugin
Date Thu, 24 Jan 2013 21:31:14 GMT

    [ https://issues.apache.org/jira/browse/HBASE-6527?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13562003#comment-13562003
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Lars Hofhansl commented on HBASE-6527:
--------------------------------------

For Coproc the regions have to reloaded (i.e. the table disabled and enabled again).
Coproc can be loaded in three way: 
# as part of the system classpath. In which case they need to be deployed to each machine
and HBase needs to be bounced.
# as local jar outside of the system classpath. In this case the jar needs to be deployed
to each machine, and only the regions need to be bounced (disable/enable).
# via a jar uploaded to HDFS , in this case the regions need to be bounced (disable/enable)

It's 100% dynamic as we have at least a disable/enable cycle. But it's better than what we
have with Filters now. I seem to recall that there was a jira for this somewhere. It's not
an entirely trivial task.

                
> Make custom filters plugin
> --------------------------
>
>                 Key: HBASE-6527
>                 URL: https://issues.apache.org/jira/browse/HBASE-6527
>             Project: HBase
>          Issue Type: New Feature
>            Reporter: Ted Yu
>
> More and more custom Filters are created.
> We should provide plugin mechanism for these custom Filters.

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