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From "Jesse Yates (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4336) Convert source tree into maven modules
Date Mon, 09 Apr 2012 18:13:19 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4336?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13250017#comment-13250017
] 

Jesse Yates commented on HBASE-4336:
------------------------------------

@stack: yeah, I think that is a bit more reasonable. Now that I'm thinking a little more about
it, I think an hbase-common, hbase-security and hbase-core packages would be a reasonable
(and not overly consuming) step. Sets up the division between things and eventually might
lead to splits between client and server (and maybe between RS and master?). I'll try to take
a look this week at getting something simpler up.
                
> Convert source tree into maven modules
> --------------------------------------
>
>                 Key: HBASE-4336
>                 URL: https://issues.apache.org/jira/browse/HBASE-4336
>             Project: HBase
>          Issue Type: Task
>          Components: build
>            Reporter: Gary Helmling
>            Priority: Critical
>             Fix For: 0.96.0
>
>
> When we originally converted the build to maven we had a single "core" module defined,
but later reverted this to a module-less build for the sake of simplicity.
> It now looks like it's time to re-address this, as we have an actual need for modules
to:
> * provide a trimmed down "client" library that applications can make use of
> * more cleanly support building against different versions of Hadoop, in place of some
of the reflection machinations currently required
> * incorporate the secure RPC engine that depends on some secure Hadoop classes
> I propose we start simply by refactoring into two initial modules:
> * core - common classes and utilities, and client-side code and interfaces
> * server - master and region server implementations and supporting code
> This would also lay the groundwork for incorporating the HBase security features that
have been developed.  Once the module structure is in place, security-related features could
then be incorporated into a third module -- "security" -- after normal review and approval.
 The security module could then depend on secure Hadoop, without modifying the dependencies
of the rest of the HBase code.

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