mqtt-users team mailing list archive

["karlp" <karlp@xxxxxxxxxxxx>]

Hi, I'm having problems with subscribing to a topic that starts with "command"

Even just using the command line clients, _pub and _sub, I never see messages to "command/+" but it works fine for 
"other/+" and so on.

See this console snippet

Listener Window....
C:\tools\mosquitto-0.10.1-win32-bin>mosquitto_sub.exe -d -h localhost -t 'command/+' -t "hatred/+"
Received CONNACK
Received SUBACK
Subscribed (mid: 1): 0
Received SUBACK
Subscribed (mid: 2): 0
Received PUBLISH (d0, q0, r0, m0, 'hatred/90A2DA002044', ... (19 bytes))
90A2DA002044,STATUS
Received PUBLISH (d0, q0, r0, m0, 'hatred/90A2DA002044', ... (19 bytes))
90A2DA002044,STATUS
Sending PINGREQ
Received PINGRESP


Publisher Window....
C:\tools\mosquitto-0.10.1-win32-bin>mosquitto_pub.exe -h localhost -t "command/90A2DA002044" -m 
90A2DA002044,STATUS
C:\tools\mosquitto-0.10.1-win32-bin>mosquitto_pub.exe -h localhost -t "hatred/90A2DA002044" -m 
90A2DA002044,STATUS
C:\tools\mosquitto-0.10.1-win32-bin>mosquitto_pub.exe -h localhost -t "hatred/90A2DA002044" -m 
90A2DA002044,STATUS
C:\tools\mosquitto-0.10.1-win32-bin>mosquitto_pub.exe -h localhost -t "command/90A2DA002044" -m 
90A2DA002044,STATUS
C:\tools\mosquitto-0.10.1-win32-bin>

Note, messages sent to the topic: "hatred/blah" succeed, but not to "command/blah"

I've experimented with different combinations, it doesn't seem to the be length of the parent topic, 
"longlonglonglonglong/blah" works just fine, as does "cmd/blah"  it doesn't seem to be the numeric first character of the 
subtopic either, as it works on other topics.  I feel like I'm going insane a little bit here, because I'm pretty sure I had it 
working with command/blah earlier this week.

I've tried with both mosquitto 0.9.2 and 0.10.1, but both behave the same way.

Any ideas?