Re: [zeromq-dev] Many to many

2013-02-17 Thread Lee Sylvester 
That's wonderful, thank you. But, what about across servers? Wouldn't I need to 
rely on TCP? If so, can they also do this?

Thanks,
Lee

Sent from my iPhone

On 17 Feb 2013, at 07:48, Whitney Jackson whjack...@gmail.com wrote:

  I'm guessing the subs cannot connect to many?
 
 Guess again :) Here's a python example:
 
 # start sub.py
 import zmq
 c = zmq.Context()
 s = c.socket(zmq.SUB)
 s.setsockopt(zmq.SUBSCRIBE, '')
 s.connect('ipc://ep1')
 s.connect('ipc://ep2')
 
 while True:
 m = s.recv()
 print m
 print ''
 # end sub.py
 
 # start pub.py
 import time
 import zmq
 
 c = zmq.Context()
 s = c.socket(zmq.PUB)
 s.bind('ipc://ep1')
 s.bind('ipc://ep2')
 
 while True:
 print 'hi'
 s.send('hi')
 time.sleep(1)
 # end pub.py
 
 sub.py will print two 'hi's every second because it received one on ipc://ep1 
 and another on ipc://ep2.
 
 
 
 On Sun, Feb 17, 2013 at 1:22 AM, Lee Sylvester lee.sylves...@gmail.com 
 wrote:
 Thank you for your reply, Witney, but I need it the other way. I need a sub 
 socket to be connected to multiple pub endpoints... This is because every 
 instance will have a single publisher, telling all who is interested about 
 events, but that same service will want to list to an arbitrary number of 
 other services for their events. Essentially, I'd be forming a type of mesh, 
 where each service has  two endpoint (pub and sub) and all connect to all. I 
 knew pub could connect to many, as it binds, but I'm guessing the subs 
 cannot connect to many?
 
 Thanks loads,
 Lee
 
 Sent from my iPhone
 
 On 17 Feb 2013, at 05:18, Whitney Jackson whjack...@gmail.com wrote:
 
  Is it possible for a sub socket to bind to multiple pub sockets?
 
 Yes. You can call bind and/or connect on a socket as many times at you like.
 
  If so, where is there an example of this?
 
 Here's an example from the guide where a pub socket is bound to multiple 
 endpoints:
 
 http://zguide.zeromq.org/page:all#Getting-the-Message-Out
 
 If you connect a sub socket to multiple endpoints then it gets a message 
 whenever any of the publishers to which it's connected send.
 
 
 
 On Sat, Feb 16, 2013 at 4:18 PM, Lee Sylvester lee.sylves...@gmail.com 
 wrote:
 Hey guys,
 
 So, I want to do a many to many pubsub.  I already have a discovery 
 mechanism and logging, but what I need is for a service to bind to a pub 
 socket and subscribe to a set list of instances of itself on the server 
 and other servers. The Zyre framework, although awesome, seems a little 
 large for my needs as I already have a number of the features it supplies 
 built in to my framework. Is it possible for a sub socket to bind to 
 multiple pub sockets?  If so, where is there an example of this? Can I 
 also add a pub socket to listen to when all is already running?
 
 Thanks,
 Lee
 
 
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Re: [zeromq-dev] Many to many

2013-02-17 Thread Lee Sylvester 
Thank you, Justin. I had heard rumours, but its almost unfathomable :-D

Lee

Sent from my iPhone

On 17 Feb 2013, at 07:33, Justin Karneges jus...@affinix.com wrote:

 Bind vs connect is independent of socket type. You can bind a SUB socket and 
 connect many PUB sockets to it.
 
 So, you could have each service bind a PUB socket and a SUB socket, and then 
 connect each to all other services' SUB sockets and PUB sockets respectively.
 
 On Sunday, February 17, 2013 07:22:27 AM Lee Sylvester wrote:
 Thank you for your reply, Witney, but I need it the other way. I need a sub
 socket to be connected to multiple pub endpoints... This is because every
 instance will have a single publisher, telling all who is interested about
 events, but that same service will want to list to an arbitrary number of
 other services for their events. Essentially, I'd be forming a type of
 mesh, where each service has  two endpoint (pub and sub) and all connect to
 all. I knew pub could connect to many, as it binds, but I'm guessing the
 subs cannot connect to many?
 
 Thanks loads,
 Lee
 
 Sent from my iPhone
 
 On 17 Feb 2013, at 05:18, Whitney Jackson whjack...@gmail.com wrote:
 Is it possible for a sub socket to bind to multiple pub sockets?
 
 Yes. You can call bind and/or connect on a socket as many times at you
 like. 
 If so, where is there an example of this?
 
 Here's an example from the guide where a pub socket is bound to multiple
 endpoints:
 
 http://zguide.zeromq.org/page:all#Getting-the-Message-Out
 
 If you connect a sub socket to multiple endpoints then it gets a message
 whenever any of the publishers to which it's connected send. 
 On Sat, Feb 16, 2013 at 4:18 PM, Lee Sylvester lee.sylves...@gmail.com
 wrote:
 Hey guys,
 
 So, I want to do a many to many pubsub.  I already have a discovery
 mechanism and logging, but what I need is for a service to bind to a pub
 socket and subscribe to a set list of instances of itself on the server
 and other servers. The Zyre framework, although awesome, seems a little
 large for my needs as I already have a number of the features it
 supplies built in to my framework. Is it possible for a sub socket to
 bind to multiple pub sockets?  If so, where is there an example of this?
 Can I also add a pub socket to listen to when all is already running?
 
 Thanks,
 Lee
 
 
 ___
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 zeromq-dev@lists.zeromq.org
 http://lists.zeromq.org/mailman/listinfo/zeromq-dev
 
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Re: [zeromq-dev] Many to many

2013-02-17 Thread Whitney Jackson 
Yeah sure. It'll work just fine with tcp endpoints.


On Sun, Feb 17, 2013 at 2:11 AM, Lee Sylvester lee.sylves...@gmail.comwrote:

 That's wonderful, thank you. But, what about across servers? Wouldn't I
 need to rely on TCP? If so, can they also do this?

 Thanks,
 Lee

 Sent from my iPhone

 On 17 Feb 2013, at 07:48, Whitney Jackson whjack...@gmail.com wrote:

  I'm guessing the subs cannot connect to many?

 Guess again :) Here's a python example:

 # start sub.py
 import zmq
 c = zmq.Context()
 s = c.socket(zmq.SUB)
 s.setsockopt(zmq.SUBSCRIBE, '')
 s.connect('ipc://ep1')
 s.connect('ipc://ep2')

 while True:
 m = s.recv()
 print m
 print ''
 # end sub.py

 # start pub.py
 import time
 import zmq

 c = zmq.Context()
 s = c.socket(zmq.PUB)
 s.bind('ipc://ep1')
 s.bind('ipc://ep2')

 while True:
 print 'hi'
 s.send('hi')
 time.sleep(1)
 # end pub.py

 sub.py will print two 'hi's every second because it received one on
 ipc://ep1 and another on ipc://ep2.



 On Sun, Feb 17, 2013 at 1:22 AM, Lee Sylvester lee.sylves...@gmail.comwrote:

 Thank you for your reply, Witney, but I need it the other way. I need a
 sub socket to be connected to multiple pub endpoints... This is because
 every instance will have a single publisher, telling all who is interested
 about events, but that same service will want to list to an arbitrary
 number of other services for their events. Essentially, I'd be forming a
 type of mesh, where each service has  two endpoint (pub and sub) and all
 connect to all. I knew pub could connect to many, as it binds, but I'm
 guessing the subs cannot connect to many?

 Thanks loads,
 Lee

 Sent from my iPhone

 On 17 Feb 2013, at 05:18, Whitney Jackson whjack...@gmail.com wrote:

  Is it possible for a sub socket to bind to multiple pub sockets?

 Yes. You can call bind and/or connect on a socket as many times at you
 like.

  If so, where is there an example of this?

 Here's an example from the guide where a pub socket is bound to multiple
 endpoints:

 http://zguide.zeromq.org/page:all#Getting-the-Message-Out

 If you connect a sub socket to multiple endpoints then it gets a message
 whenever any of the publishers to which it's connected send.



 On Sat, Feb 16, 2013 at 4:18 PM, Lee Sylvester 
 lee.sylves...@gmail.comwrote:

 Hey guys,

 So, I want to do a many to many pubsub.  I already have a discovery
 mechanism and logging, but what I need is for a service to bind to a pub
 socket and subscribe to a set list of instances of itself on the server and
 other servers. The Zyre framework, although awesome, seems a little large
 for my needs as I already have a number of the features it supplies built
 in to my framework. Is it possible for a sub socket to bind to multiple pub
 sockets?  If so, where is there an example of this? Can I also add a pub
 socket to listen to when all is already running?

 Thanks,
 Lee


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Re: [zeromq-dev] Many to many

2013-02-17 Thread Lee Sylvester 
Thank you, Whitney, you've made my day. I've been contemplating this part of my 
cloud over and over for days and was loath to do something complex when 
currently it's very simple and sleek. I can see ZMQ is a perfect fit :-D

Regards,
Lee

Sent from my iPhone

On 17 Feb 2013, at 08:15, Whitney Jackson whjack...@gmail.com wrote:

 Yeah sure. It'll work just fine with tcp endpoints.
 
 
 On Sun, Feb 17, 2013 at 2:11 AM, Lee Sylvester lee.sylves...@gmail.com 
 wrote:
 That's wonderful, thank you. But, what about across servers? Wouldn't I need 
 to rely on TCP? If so, can they also do this?
 
 Thanks,
 Lee
 
 Sent from my iPhone
 
 On 17 Feb 2013, at 07:48, Whitney Jackson whjack...@gmail.com wrote:
 
  I'm guessing the subs cannot connect to many?
 
 Guess again :) Here's a python example:
 
 # start sub.py
 import zmq
 c = zmq.Context()
 s = c.socket(zmq.SUB)
 s.setsockopt(zmq.SUBSCRIBE, '')
 s.connect('ipc://ep1')
 s.connect('ipc://ep2')
 
 while True:
 m = s.recv()
 print m
 print ''
 # end sub.py
 
 # start pub.py
 import time
 import zmq
 
 c = zmq.Context()
 s = c.socket(zmq.PUB)
 s.bind('ipc://ep1')
 s.bind('ipc://ep2')
 
 while True:
 print 'hi'
 s.send('hi')
 time.sleep(1)
 # end pub.py
 
 sub.py will print two 'hi's every second because it received one on 
 ipc://ep1 and another on ipc://ep2.
 
 
 
 On Sun, Feb 17, 2013 at 1:22 AM, Lee Sylvester lee.sylves...@gmail.com 
 wrote:
 Thank you for your reply, Witney, but I need it the other way. I need a 
 sub socket to be connected to multiple pub endpoints... This is because 
 every instance will have a single publisher, telling all who is interested 
 about events, but that same service will want to list to an arbitrary 
 number of other services for their events. Essentially, I'd be forming a 
 type of mesh, where each service has  two endpoint (pub and sub) and all 
 connect to all. I knew pub could connect to many, as it binds, but I'm 
 guessing the subs cannot connect to many?
 
 Thanks loads,
 Lee
 
 Sent from my iPhone
 
 On 17 Feb 2013, at 05:18, Whitney Jackson whjack...@gmail.com wrote:
 
  Is it possible for a sub socket to bind to multiple pub sockets?
 
 Yes. You can call bind and/or connect on a socket as many times at you 
 like.
 
  If so, where is there an example of this?
 
 Here's an example from the guide where a pub socket is bound to multiple 
 endpoints:
 
 http://zguide.zeromq.org/page:all#Getting-the-Message-Out
 
 If you connect a sub socket to multiple endpoints then it gets a message 
 whenever any of the publishers to which it's connected send.
 
 
 
 On Sat, Feb 16, 2013 at 4:18 PM, Lee Sylvester lee.sylves...@gmail.com 
 wrote:
 Hey guys,
 
 So, I want to do a many to many pubsub.  I already have a discovery 
 mechanism and logging, but what I need is for a service to bind to a pub 
 socket and subscribe to a set list of instances of itself on the server 
 and other servers. The Zyre framework, although awesome, seems a little 
 large for my needs as I already have a number of the features it 
 supplies built in to my framework. Is it possible for a sub socket to 
 bind to multiple pub sockets?  If so, where is there an example of this? 
 Can I also add a pub socket to listen to when all is already running?
 
 Thanks,
 Lee
 
 
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 zeromq-dev mailing list
 zeromq-dev@lists.zeromq.org
 http://lists.zeromq.org/mailman/listinfo/zeromq-dev
 
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Re: [zeromq-dev] Many to many

2013-02-16 Thread Whitney Jackson 
 Is it possible for a sub socket to bind to multiple pub sockets?

Yes. You can call bind and/or connect on a socket as many times at you like.

 If so, where is there an example of this?

Here's an example from the guide where a pub socket is bound to multiple
endpoints:

http://zguide.zeromq.org/page:all#Getting-the-Message-Out

If you connect a sub socket to multiple endpoints then it gets a message
whenever any of the publishers to which it's connected send.



On Sat, Feb 16, 2013 at 4:18 PM, Lee Sylvester lee.sylves...@gmail.comwrote:

 Hey guys,

 So, I want to do a many to many pubsub.  I already have a discovery
 mechanism and logging, but what I need is for a service to bind to a pub
 socket and subscribe to a set list of instances of itself on the server and
 other servers. The Zyre framework, although awesome, seems a little large
 for my needs as I already have a number of the features it supplies built
 in to my framework. Is it possible for a sub socket to bind to multiple pub
 sockets?  If so, where is there an example of this? Can I also add a pub
 socket to listen to when all is already running?

 Thanks,
 Lee


 ___
 zeromq-dev mailing list
 zeromq-dev@lists.zeromq.org
 http://lists.zeromq.org/mailman/listinfo/zeromq-dev

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Re: [zeromq-dev] Many to many

2013-02-16 Thread Lee Sylvester 
Thank you for your reply, Witney, but I need it the other way. I need a sub 
socket to be connected to multiple pub endpoints... This is because every 
instance will have a single publisher, telling all who is interested about 
events, but that same service will want to list to an arbitrary number of other 
services for their events. Essentially, I'd be forming a type of mesh, where 
each service has  two endpoint (pub and sub) and all connect to all. I knew pub 
could connect to many, as it binds, but I'm guessing the subs cannot connect to 
many?

Thanks loads,
Lee

Sent from my iPhone

On 17 Feb 2013, at 05:18, Whitney Jackson whjack...@gmail.com wrote:

  Is it possible for a sub socket to bind to multiple pub sockets?
 
 Yes. You can call bind and/or connect on a socket as many times at you like.
 
  If so, where is there an example of this?
 
 Here's an example from the guide where a pub socket is bound to multiple 
 endpoints:
 
 http://zguide.zeromq.org/page:all#Getting-the-Message-Out
 
 If you connect a sub socket to multiple endpoints then it gets a message 
 whenever any of the publishers to which it's connected send.
 
 
 
 On Sat, Feb 16, 2013 at 4:18 PM, Lee Sylvester lee.sylves...@gmail.com 
 wrote:
 Hey guys,
 
 So, I want to do a many to many pubsub.  I already have a discovery 
 mechanism and logging, but what I need is for a service to bind to a pub 
 socket and subscribe to a set list of instances of itself on the server and 
 other servers. The Zyre framework, although awesome, seems a little large 
 for my needs as I already have a number of the features it supplies built in 
 to my framework. Is it possible for a sub socket to bind to multiple pub 
 sockets?  If so, where is there an example of this? Can I also add a pub 
 socket to listen to when all is already running?
 
 Thanks,
 Lee
 
 
 ___
 zeromq-dev mailing list
 zeromq-dev@lists.zeromq.org
 http://lists.zeromq.org/mailman/listinfo/zeromq-dev
 
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Re: [zeromq-dev] Many to many

2013-02-16 Thread Justin Karneges 
Bind vs connect is independent of socket type. You can bind a SUB socket and 
connect many PUB sockets to it.

So, you could have each service bind a PUB socket and a SUB socket, and then 
connect each to all other services' SUB sockets and PUB sockets respectively.

On Sunday, February 17, 2013 07:22:27 AM Lee Sylvester wrote:
 Thank you for your reply, Witney, but I need it the other way. I need a sub
 socket to be connected to multiple pub endpoints... This is because every
 instance will have a single publisher, telling all who is interested about
 events, but that same service will want to list to an arbitrary number of
 other services for their events. Essentially, I'd be forming a type of
 mesh, where each service has  two endpoint (pub and sub) and all connect to
 all. I knew pub could connect to many, as it binds, but I'm guessing the
 subs cannot connect to many?
 
 Thanks loads,
 Lee
 
 Sent from my iPhone
 
 On 17 Feb 2013, at 05:18, Whitney Jackson whjack...@gmail.com wrote:
   Is it possible for a sub socket to bind to multiple pub sockets?
  
  Yes. You can call bind and/or connect on a socket as many times at you
  like. 
   If so, where is there an example of this?
  
  Here's an example from the guide where a pub socket is bound to multiple
  endpoints:
  
  http://zguide.zeromq.org/page:all#Getting-the-Message-Out
  
  If you connect a sub socket to multiple endpoints then it gets a message
  whenever any of the publishers to which it's connected send. 
  On Sat, Feb 16, 2013 at 4:18 PM, Lee Sylvester lee.sylves...@gmail.com 
wrote:
  Hey guys,
  
  So, I want to do a many to many pubsub.  I already have a discovery
  mechanism and logging, but what I need is for a service to bind to a pub
  socket and subscribe to a set list of instances of itself on the server
  and other servers. The Zyre framework, although awesome, seems a little
  large for my needs as I already have a number of the features it
  supplies built in to my framework. Is it possible for a sub socket to
  bind to multiple pub sockets?  If so, where is there an example of this?
  Can I also add a pub socket to listen to when all is already running?
  
  Thanks,
  Lee
  
  
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Re: [zeromq-dev] Many to many

2013-02-16 Thread Whitney Jackson 
 I'm guessing the subs cannot connect to many?

Guess again :) Here's a python example:

# start sub.py
import zmq
c = zmq.Context()
s = c.socket(zmq.SUB)
s.setsockopt(zmq.SUBSCRIBE, '')
s.connect('ipc://ep1')
s.connect('ipc://ep2')

while True:
m = s.recv()
print m
print ''
# end sub.py

# start pub.py
import time
import zmq

c = zmq.Context()
s = c.socket(zmq.PUB)
s.bind('ipc://ep1')
s.bind('ipc://ep2')

while True:
print 'hi'
s.send('hi')
time.sleep(1)
# end pub.py

sub.py will print two 'hi's every second because it received one on
ipc://ep1 and another on ipc://ep2.



On Sun, Feb 17, 2013 at 1:22 AM, Lee Sylvester lee.sylves...@gmail.comwrote:

 Thank you for your reply, Witney, but I need it the other way. I need a
 sub socket to be connected to multiple pub endpoints... This is because
 every instance will have a single publisher, telling all who is interested
 about events, but that same service will want to list to an arbitrary
 number of other services for their events. Essentially, I'd be forming a
 type of mesh, where each service has  two endpoint (pub and sub) and all
 connect to all. I knew pub could connect to many, as it binds, but I'm
 guessing the subs cannot connect to many?

 Thanks loads,
 Lee

 Sent from my iPhone

 On 17 Feb 2013, at 05:18, Whitney Jackson whjack...@gmail.com wrote:

  Is it possible for a sub socket to bind to multiple pub sockets?

 Yes. You can call bind and/or connect on a socket as many times at you
 like.

  If so, where is there an example of this?

 Here's an example from the guide where a pub socket is bound to multiple
 endpoints:

 http://zguide.zeromq.org/page:all#Getting-the-Message-Out

 If you connect a sub socket to multiple endpoints then it gets a message
 whenever any of the publishers to which it's connected send.



 On Sat, Feb 16, 2013 at 4:18 PM, Lee Sylvester lee.sylves...@gmail.comwrote:

 Hey guys,

 So, I want to do a many to many pubsub.  I already have a discovery
 mechanism and logging, but what I need is for a service to bind to a pub
 socket and subscribe to a set list of instances of itself on the server and
 other servers. The Zyre framework, although awesome, seems a little large
 for my needs as I already have a number of the features it supplies built
 in to my framework. Is it possible for a sub socket to bind to multiple pub
 sockets?  If so, where is there an example of this? Can I also add a pub
 socket to listen to when all is already running?

 Thanks,
 Lee


 ___
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 zeromq-dev@lists.zeromq.org
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