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From "Anoop Sam John (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-8734) HBase side support for BIGTOP-1007 (Introduce a modules system for HBase coprocessor applications)
Date Mon, 24 Jun 2013 05:39:20 GMT

    [ https://issues.apache.org/jira/browse/HBASE-8734?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13691709#comment-13691709
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Anoop Sam John commented on HBASE-8734:
---------------------------------------

bq.Within the modules.d/ directory, one additional level of subdirectories can be created,
into which a package can drop site xml fragments and scripts to execute after regionserver
and master (re)start.

What about the execution order of the CPs. We will call in the order in which it is coming
in the final conf file. You mention about "to control how system coprocessors are ordered".
(The AccessController cp, we might want to be the 1st..)  What abt the user CPs . Some times
I will need one of my CP to be the last one in the chain or some other way around. 
                
> HBase side support for BIGTOP-1007 (Introduce a modules system for HBase coprocessor
applications)
> --------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-8734
>                 URL: https://issues.apache.org/jira/browse/HBASE-8734
>             Project: HBase
>          Issue Type: Improvement
>          Components: Coprocessors
>            Reporter: Andrew Purtell
>            Assignee: Andrew Purtell
>
> BIGTOP-1007 proposes a modules system convention ("/etc/hbase/modules.d"), a common pattern
used for example by Apache httpd, for easily installation and removal of HBase coprocessor
applications.
> Will propose any HBase side changes needed here, or close soon if none are required.

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