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https://issues.apache.org/jira/browse/PHOENIX-3360?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15967271#comment-15967271
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Enis Soztutar commented on PHOENIX-3360:
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bq. just want to confirm that we still need the RPC scheduler configured as we
document here
We do not need that config anymore. Let's update the documentation.
bq. confusing that it's in org.apache.hadoop.hbase.ipc.controller package
I think it was done that way due to some internals in RpcController being
package-protected.
We should remove {{hbase.rpc.controllerfactory.class}}, but keep
{{hbase.region.server.rpc.scheduler.factory.class}}.
> 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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