librelist archives

How a Handler ensures the response send to mongrel2 server?

How a Handler ensures the response send to mongrel2 server? by Kong
- Re: [mongrel2] How a Handler ensures the response send to mongrel2 server? by Loic d'Anterroches
  - Re: [mongrel2] How a Handler ensures the response send to mongrel2 server? by Kong

How a Handler ensures the response send to mongrel2 server?

From:: Kong
Date:: 2012-02-01 @ 07:45

Hi all,
I'm a newbee of 0mq & mongrel2. I read some docs and knows that Handler
sends message to mongrel2 server via 'PUB' socket and mongrel2 server gets
data from Handler via 'SUB' socket.
However, there's no guarantee that a publisher sends the message to the
subscriber successfully, PUB doesn't know if the message is received by
SUB, how mongrel2 handle the missing message case?
-- 
Regards,
Kong

Re: [mongrel2] How a Handler ensures the response send to mongrel2 server?

From:: Loic d'Anterroches
Date:: 2012-02-01 @ 07:56

On 2012-02-01 08:45, Kong wrote:
> Hi all,
> I'm a newbee of 0mq & mongrel2. I read some docs and knows that Handler
> sends message to mongrel2 server via 'PUB' socket and mongrel2 server
> gets data from Handler via 'SUB' socket.
> However, there's no guarantee that a publisher sends the message to the
> subscriber successfully, PUB doesn't know if the message is received by
> SUB, how mongrel2 handle the missing message case?

Nothing at the ZMQ level but you can access the Mongrel2 control port if
you need to know the status of the connection with the client.

If in the future a tnetstring is sent to M2 from the handlers, we could
setup a "request to ack" or something like that.

loïc

Re: [mongrel2] How a Handler ensures the response send to mongrel2 server?

From:: Kong
Date:: 2012-02-01 @ 08:13

Thank you Loic.
So just in case if M2 missed the message from Hanlder, the only result is
client will time out and try again?

2012/2/1 Loic d'Anterroches <loic@ceondo.com>

>
>
> On 2012-02-01 08:45, Kong wrote:
> > Hi all,
> > I'm a newbee of 0mq & mongrel2. I read some docs and knows that Handler
> > sends message to mongrel2 server via 'PUB' socket and mongrel2 server
> > gets data from Handler via 'SUB' socket.
> > However, there's no guarantee that a publisher sends the message to the
> > subscriber successfully, PUB doesn't know if the message is received by
> > SUB, how mongrel2 handle the missing message case?
>
> Nothing at the ZMQ level but you can access the Mongrel2 control port if
> you need to know the status of the connection with the client.
>
> If in the future a tnetstring is sent to M2 from the handlers, we could
> setup a "request to ack" or something like that.
>
> loïc
>



-- 
Regards,
Kong