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From "Nicolas Liochon (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-9461) Some doc and cleanup in RPCServer
Date Fri, 13 Sep 2013 12:56:53 GMT

    [ https://issues.apache.org/jira/browse/HBASE-9461?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13766457#comment-13766457

Nicolas Liochon commented on HBASE-9461:

Just asking, if you find the time. Some comments describing the intention (what this class
is supposed to do) would be great. For example, the delayed calls, undelayed calls with delayed
response are not trivial (are they used?). It's very difficult to understand what these classes
are supposed to do and why.

Or this low level, with a specific case with '==1'
      synchronized (call.connection.responseQueue) {
        if (call.connection.responseQueue.size() == 1) {
          doRegister = !processResponse(call.connection.responseQueue, false);

Basically, I wanted to try a Netty based implementation, but there are so many corner cases
that even estimating the time needed for a hacked implementation is difficult....
> Some doc and cleanup in RPCServer
> ---------------------------------
>                 Key: HBASE-9461
>                 URL: https://issues.apache.org/jira/browse/HBASE-9461
>             Project: HBase
>          Issue Type: Bug
>            Reporter: stack
>            Assignee: stack
>         Attachments: 9461.txt, 9461v2.txt, ipc2.ucls
> RPC is a dog to follow.  I want to do buffer pooling for reading requests but its tough
drawing the diagram of who is doing what when.  HBASE-8884 seems to have made it more involved
still.  This issue is about doing a bit of untangling.

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