Re: FIX Session creation with the message delivery endpoint.

[Hiranya Jayathilaka <hi...@gmail.com>]

Hi Asanka,

Do you suggest that we should create the session with the acceptor at
Synapse start up?

Thanks

Best Regards,
Hiranya

On Fri, Jun 27, 2008 at 11:05 AM, Asanka Abeysinghe <as...@wso2.com>
wrote:

> Hi,
>
> Synapse maintain two FIX sessions to connect FIX endpoints (see the
> attached diagram, session A and session B). Session with initiator (session
> A) created in the startup process of synapse (if the initiator up and
> running) or as soon as the initiator comes up. But the session with the
> acceptor (session B) creates when synapse sends the ***first** *message to
> the target endpoint. So the first transaction will take additional time to
> deliver [1].
>
> For a normal trader this will be not an issue because a trader will post
> trades in the pre-opening session of the market before the market opens. But
> the issue comes when the sessions have to re-connect during the open-market.
> We cannot assume the session(s) connects in few seconds, there might be
> network delays and hand shaking issues (sequence number mismatch).
>
> I think the current implementation of the session handling is a design
> decision because that describes in the user documentation.
>
> Asanka A.
>
>
> [1] delivery time of the first transaction = message marshal/ marshal time
> of synapse + FIX session creation time + network latency
>
>
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Re: FIX Session creation with the message delivery endpoint.

[Hiranya Jayathilaka <hi...@gmail.com>]

Hi Asanka,

On Fri, Jun 27, 2008 at 11:32 AM, Asanka Abeysinghe <as...@wso2.com>
wrote:

> Yes (if the initiator is up and running) or as soon as the initiator comes
> up (we can start the fix engine by defining the acceptor sessions so
> quickfix will connect automatically).


I don't think implementing this is a difficult thing. We just need to look
at the address end point parameter at the startListeningForService method
and create the session accordingly. May be we can even  make this optional.
That is we can introduce a  new parameter. If it  not set Synapse will
create all the sessions at start up. If it is set sessions with the
acceptors will be created in a 'lazy' manner.

If you can raise a JIRA we can start working on this.

Thanks

Best Regards,
Hiranya Jayathilaka


> FIX users wants to make sure **all** his/her FIX sessions are up and
> healthy before trade starts.
>
> Asanka A.
>
> Hiranya Jayathilaka wrote:
>
>> Hi Asanka,
>>
>> Do you suggest that we should create the session with the acceptor at
>> Synapse start up?
>>
>> Thanks
>>
>> Best Regards,
>> Hiranya
>>
>>
>
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> To unsubscribe, e-mail: dev-unsubscribe@synapse.apache.org
> For additional commands, e-mail: dev-help@synapse.apache.org
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>

Re: FIX Session creation with the message delivery endpoint.

[Asanka Abeysinghe <as...@wso2.com>]

Yes (if the initiator is up and running) or as soon as the initiator 
comes up (we can start the fix engine by defining the acceptor sessions 
so quickfix will connect automatically).
FIX users wants to make sure **all** his/her FIX sessions are up and 
healthy before trade starts.

Asanka A.

Hiranya Jayathilaka wrote:
> Hi Asanka,
>
> Do you suggest that we should create the session with the acceptor at 
> Synapse start up?
>
> Thanks
>
> Best Regards,
> Hiranya
>


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