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https://issues.apache.org/jira/browse/AVRO-405?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12883198#action_12883198
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Doug Cutting commented on AVRO-405:
-----------------------------------
I hope to have time later this week to review this. At a glance, it looked
like it could be nearly ready to commit.
> adding a responder delegate interface that is invoked during request
> handshake but before request processing
That sounds like a separate issue. Why is it required before we commit Harry's
patch?
> build alternative protocol specified by bruce
That's also a separate issue. Having a Netty-based Transceiver and Server
would be useful and Harry's patch appears to provide a complete implementation.
Long-term we should consider improving responder delegation, and we need to
specify an RPC transport that's high-performance than HTTP. But those
shouldn't prevent the addition of a simple Netty-based Transceiver and Server
now, should they?
> Netty-based Java RPC server
> ---------------------------
>
> Key: AVRO-405
> URL: https://issues.apache.org/jira/browse/AVRO-405
> Project: Avro
> Issue Type: New Feature
> Components: java
> Reporter: Todd Lipcon
> Assignee: James Todd
> Attachments: AVRO-405-coolwhy.patch, AVRO-405-for-review.patch,
> AVRO-405.patch, netty-avro.zip
>
>
> A nonblocking RPC server based on Netty should be more scalable than the
> current implementation.
> We should provide two mechanisms for interfacing the RPC server to the
> implementations:
> 1) "Blocking" RPC implementations run inside a worker threadpool.
> Implementators would not know that they're working in a non-blocking context.
> 2) "Event-driven" RPC implementations that receive requests and some kind of
> request context. They are responsible for eventually calling
> context.respond(response) or somesuch. This would allow more scalable
> interaction with downstream services.
> I propose we focus on (1) first.
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