IBM Support

IT44956: MQTTSUBSCRIBE NODE FAILS TO LISTEN TO MULTIPLE TOPICS

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APAR status

  • Closed as program error.

Error description

  • MQTTSubscribe node configured with multiple comma separated
topics fails to listen to topics. App Connect Enterprise
supports only a single topic in the MQTTSubscribe node because
any character is allowed in an MQTT topic, so there's no
delimiter that can be used to separate topics in a list!

Local fix

  • 



Problem summary


    

  • ****************************************************************
USERS AFFECTED:
All Users of IBM App Connect Enterprise v12 who use
MQTTSubscribe Node


Platforms affected:
MultiPlatform

****************************************************************
PROBLEM DESCRIPTION:
MQTTSubscribe node configured with multiple comma separated
topics fails to listen to the topics. App Connect Enterprise
supports only a single topic in the MQTTSubscribe node because
any character is allowed in an MQTT topic, so there's no
delimiter that can be used to separate topics in a list.

    



Problem conclusion


    

  • Product has been modified such that MQTTSubcribe Node now allows
multiple topics with a delimiter %MQSI_DELIMITER% between topics
which can be overridden using the environment variable
MQSI_MQTT_TOPIC_DELIMITER.

---------------------------------------------------------------
The fix is targeted for delivery in the following PTFs:

Version    Maintenance Level
v12.0      12.0.11.0

The latest available maintenance can be obtained from:
http://www-01.ibm.com/support/docview.wss?rs=849&uid=swg27006041

If the maintenance level is not yet available,information on
its planned availability can be found on:
http://www-1.ibm.com/support/docview.wss?rs=849&uid=swg27006308
---------------------------------------------------------------

    



Temporary fix


    

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    IT44956
    • 

  • Reported component name
    APP CONNECT ENT
    • 

  • Reported component ID
    5724J0560
    • 

  • Reported release
    C00
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt / Xsystem
    • 

  • Submitted date
    2023-11-15
    • 

  • Closed date
    2023-12-04
    • 

  • Last modified date
    2023-12-04
    • 





    

  • APAR is sysrouted FROM one or more of the following:
    

    • 

  • APAR is sysrouted TO one or more of the following:
    

    • 



Fix information


    

  • Fixed component name
    APP CONNECT ENT
    • 

  • Fixed component ID
    5724J0560
    • 



Applicable component levels


    








      
              
                            

              

              [{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SSDR5J","label":"IBM App Connect Enterprise"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"C00","Line of Business":{"code":"LOB45","label":"Automation"}}]
              

                          

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            04 December 2023
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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