Osiris,
(slap forehead with palm) That explains it... thanks for the quick help.
jerry
On 02/26/2016 11:59 AM, Osiris Pedroso wrote:
Isn't the problem that both sides are binding?
I believe one side should bind, the other should connect.
On Fri, Feb 26, 2016 at 1:15 PM Jerry Scharf
<[email protected]
<mailto:[email protected]>> wrote:
Hi,
That's not it. I added a gethostbyname to the code, that works but
the bind still fails. I did a simple socket connect to the
host/port in python and that works fine (no error, netstat shows
the connection.)
I think the code is pretty generic, I tried to keep it as simple
as possible to start with.
Here's master (client) side code:
cmdsock = zc.socket(zmq.REQ)
evsock = zc.socket(zmq.SUB)
cmdport = 10011
subport = 10012
hostip = socket.gethostbyname(hostname)
evconn = "tcp://{}:{}".format(hostip, subport)
evsock.bind(evconn)
cmdconn = "tcp://{}:{}".format(hostname, cmdport)
cmdsock.bind(cmdconn)
here's the listener side code
mzcontext = zmq.Context()
rrportnum = 10011
psportnum = 10012
rrsock = mzcontext.socket(zmq.REP)
rrsockstr = "tcp://*:{0}".format(rrportnum)
rrsock.bind(rrsockstr)
pssock = mzcontext.socket(zmq.PUB)
pssock.bind("tcp://*:{0}".format(psportnum))
On 02/26/2016 12:16 AM, MinRK wrote:
Typically, with bind you want an IP address. Often a domain
works, but it requires that zeromq can resolve that domain to a
/local/ IP address of the machine. This won’t work, for instance,
if your raspberry pi is behind a router. You can listen on all
IPs by using |'tcp://*:10011'|.
-MinRK
On Fri, Feb 26, 2016 at 1:11 AM, Jerry Scharf
<[email protected]
<mailto:[email protected]>> wrote:
Hi,
I'm working further into things. I have the raspberry pi side
working
happily and am now trying to get the ubuntu master side
working. I am
running python 3.4 and did the install from pip with no
errors. (I am
running python2.7 on the pi side to get spi routines...)
The socket create works fine, but wen I try to bind to my
host as a
fully qualified hostname:port (in this case
"bank0pi.lt.in.finsix.com:10011
<http://bank0pi.lt.in.finsix.com:10011>" I get this stackdump:
File "/home/jerry/finsix/marathon/master/simple/m_zmq.py",
line 29, in
bank_setup
evsock.bind(evconn)
File "zmq/backend/cython/socket.pyx", line 487, in
zmq.backend.cython.socket.Socket.bind
(zmq/backend/cython/socket.c:5156)
File "zmq/backend/cython/checkrc.pxd", line 25, in
zmq.backend.cython.checkrc._check_rc
(zmq/backend/cython/socket.c:7535)
zmq.error.ZMQError: No such device
What device is it looking for?? I check with host and the
name resolves
fine.
tia,
jerry
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