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From "ramkrishna.s.vasudevan (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-5584) Coprocessor hooks can be called in the respective handlers
Date Wed, 21 Mar 2012 10:07:38 GMT

    [ https://issues.apache.org/jira/browse/HBASE-5584?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13234250#comment-13234250
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ramkrishna.s.vasudevan commented on HBASE-5584:
-----------------------------------------------

The test cases are passing now after adding the sleep in testcase.
                
> Coprocessor hooks can be called in the respective handlers
> ----------------------------------------------------------
>
>                 Key: HBASE-5584
>                 URL: https://issues.apache.org/jira/browse/HBASE-5584
>             Project: HBase
>          Issue Type: Improvement
>          Components: coprocessors
>            Reporter: ramkrishna.s.vasudevan
>            Assignee: ramkrishna.s.vasudevan
>             Fix For: 0.96.0
>
>         Attachments: HBASE-5584-1.patch, HBASE-5584.patch
>
>
> Following points can be changed w.r.t to coprocessors
> -> Call preCreate, postCreate, preEnable, postEnable, etc. in their respective handlers
> -> Currently it is called in the HMaster thus making the postApis async w.r.t the
handlers
> -> Similar is the case with the balancer.
> with current behaviour once we are in the postEnable(for eg) we any way need to wait
for the main enable handler to 
> be completed.
> We should ensure that we dont wait in the main thread so again we need to spawn a thread
and wait on that.
> On the other hand if the pre and post api is called on the handlers then only that handler
thread will be
> used in the pre/post apis
> If the above said plan is ok i can prepare a patch for all such related changes.

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