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From "ryan rawson (JIRA)" <j...@apache.org>
Subject [jira] Commented: (AVRO-625) RPC: permit out-of-order responses
Date Wed, 01 Sep 2010 22:18:55 GMT

    [ https://issues.apache.org/jira/browse/AVRO-625?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12905259#action_12905259

ryan rawson commented on AVRO-625:

Note that in HBase land we have suffered heavily from the 1 socket per RPC endpoint pair policy.
 In highly multithreaded apps our users find that they can't get the performance they desire
due to this.  A few people have independently invented mechanisms to make this thread local
that gives massive speedups in their clients.

Multiplexing multiple RPCs on the same socket is in other words not a clear gain when the
RPC request and/or response may be significantly large. 

> RPC: permit out-of-order responses
> ----------------------------------
>                 Key: AVRO-625
>                 URL: https://issues.apache.org/jira/browse/AVRO-625
>             Project: Avro
>          Issue Type: New Feature
>          Components: java, spec
>            Reporter: Doug Cutting
>            Assignee: Doug Cutting
>             Fix For: 1.5.0
> It should be possible, when using a stateful, connection-based transport, for a client
to complete a second request over a connection before the first request has returned.  In
other words, responses should be permitted to arrive out-of-order.

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