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From Bryan Duxbury <br...@rapleaf.com>
Subject Re: Oneway/async call guarantee
Date Fri, 23 Jul 2010 14:32:20 GMT
1) No.

2) Probably just to the local socket buffer. If you are writing and the
connection happens to close or something like that, you'll see those
exceptions in the client.

On Thu, Jul 22, 2010 at 8:43 PM, Qing Yan <qingyan@gmail.com> wrote:

> Hello!
>
>  I have a few question while reading the thrift paper "Additionally,
> an async modifier
> keyword may be added to a void function, which will generate
> code that does not wait for a response from the server. Note that a
> pure void function will return a response to the client which guarantees
> that the operation has completed on the server side. With
> async method calls the client will only be guaranteed that the request
> succeeded at the transport layer. (In many transport scenarios
> this is inherently unreliable due to the Byzantine Generals’ Problem.
> Therefore, application developers should take care only to use
> the async optimization in cases where dropped method calls are
> acceptable or the transport is known to be reliable.)"
>
>
> 1) Is TCP/Socket transport layer considered to be reliable?
>
> 2) In the TCP/Socket case, does it guarantee the request has
> successfully reached the other side? or merely means the request has
> been successfully wirtten into the local
> socket buffer?
>
>
> Thank you in advance..
>

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