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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:
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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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