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https://issues.apache.org/jira/browse/PHOENIX-3360?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15866815#comment-15866815
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Enis Soztutar commented on PHOENIX-3360:
----------------------------------------

bq. we can use the v1 patch with a little modification that we just set the 
conf returned by CoprocessorEnvironment#getConfiguration()
Indeed. The patch should have read the env.getConfiguration() as opposed to 
env.getRegionServerServices().getConfiguration().  
1+ for v4. [~rajeshbabu] do you mind committing this. 

> Secondary index configuration is wrong
> --------------------------------------
>
>                 Key: PHOENIX-3360
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-3360
>             Project: Phoenix
>          Issue Type: Bug
>            Reporter: Enis Soztutar
>            Assignee: William Yang
>            Priority: Critical
>             Fix For: 4.10.0
>
>         Attachments: ConfCP.java, PHOENIX-3360.patch, PHOENIX-3360-v2.PATCH, 
> PHOENIX-3360-v3.PATCH, PHOENIX-3360-v4.PATCH
>
>
> IndexRpcScheduler allocates some handler threads and uses a higher priority 
> for RPCs. The corresponding IndexRpcController is not used by default as it 
> is, but used through ServerRpcControllerFactory that we configure from Ambari 
> by default which sets the priority of the outgoing RPCs to either metadata 
> priority, or the index priority.
> However, after reading code of IndexRpcController / ServerRpcController it 
> seems that the IndexRPCController DOES NOT look at whether the outgoing RPC 
> is for an Index table or not. It just sets ALL rpc priorities to be the index 
> priority. The intention seems to be the case that ONLY on servers, we 
> configure ServerRpcControllerFactory, and with clients we NEVER configure 
> ServerRpcControllerFactory, but instead use ClientRpcControllerFactory. We 
> configure ServerRpcControllerFactory from Ambari, which in affect makes it so 
> that ALL rpcs from Phoenix are only handled by the index handlers by default. 
> It means all deadlock cases are still there. 
> The documentation in https://phoenix.apache.org/secondary_indexing.html is 
> also wrong in this sense. It does not talk about server side / client side. 
> Plus this way of configuring different values is not how HBase configuration 
> is deployed. We cannot have the configuration show the 
> ServerRpcControllerFactory even only for server nodes, because the clients 
> running on those nodes will also see the wrong values. 



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