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MQSeries.net Forum Index » WebSphere Message Broker (ACE) Support » Subscribing to event message topics (MQTT on IIB10 w/o QM)

Subscribing to event message topics (MQTT on IIB10 w/o QM)

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catshout

Posted: Tue Jan 17, 2017 2:42 pm Post subject: Subscribing to event message topics (MQTT on IIB10 w/o QM)

Acolyte

Joined: 15 May 2012
Posts: 57

Dear community,

I've enabled the IIB flow monitoring for an existing message flow based on a monitoring profile with following commands

Code:

mqsicreateconfigurableservice EIB001 -c MonitoringProfiles -o ROUGLO001_MonProf
mqsichangeproperties EIB001 -c MonitoringProfiles -o ROUGLO001_MonProf -n profileProperties -p /var/mqsi/MonProf/ROUGLO001_MonProf.mon
mqsichangeflowmonitoring EIB001 -e IS_C_EG_01 -k ROUGLO001 -f ROUGLO001 -c active

IIB10 runs without a local Queue Manager.

I've checked the activated flow monitoring afterwards through IIB's Web UI and also the MQTT enabled Business Events on command line with

Code:

mqsireportproperties EIB001 -b pubsub -o BusinessEvents/MQTT -n enabled
true
BIP8071I: Successful command completion.

Further I've setup a flow with a MQTT Subscriber node on the topic

Code:

IBM/IntegrationBus/Monitoring/#

to catch the Business Events when coming in.

When executing the flow nothing happend on the flow containing the MQTT Subscriber node.

So my questions are

1. Is this the right approach to catch the events?
2. What could I do to check whether events are published or not? I've tried to connect with an MQTT client to the appropriate port (11883) but the connection always failed.

Did I miss something here? I've done a lot of reseach in IIB's Info Center and online but w/o success on these 2 questions.

Any hints are appreciated.

Best
- Gerald

timber

Posted: Tue Jan 17, 2017 3:46 pm Post subject:

Grand Master

Joined: 25 Aug 2015
Posts: 1280

Thanks for taking the time to put your question so clearly.
My next step would be to take a user trace. Every time an event is emitted, BIP3912 is reported in the user trace. You may find other interesting stuff in there as well.

catshout

Posted: Tue Jan 17, 2017 3:51 pm Post subject:

Acolyte

Joined: 15 May 2012
Posts: 57

Found that the Info Center is a bit misleading here. Under

https://www.ibm.com/support/knowledgecenter/SSMKHH_10.0.0/com.ibm.etools.mft.doc/aq20080_.htm

you may read for a Monitoring Topic string

Code:

topicRoot/Monitoring/integrationServerName/messageFlowName

where topicRoot is "IBM/IntegrationBus".

It should be

Code:

topicRoot/integrationNodeName/Monitoring/integrationServerName/messageFlowName

So far the topic string

Code:

IBM/IntegrationBus/+/Monitoring/#

finally works.

Best
- Gerald

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