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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