IBM Support

IC65901: MQ CONNECTION LEAKS WHEN SAME QUEUE MANAGER OBJECT IS USED FOR FRONTSIDE AND BACKSIDE SERVICE WITH UNIT OF WORK ENABLED.

Subscribe

You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • When the same Queue Manager Object is used for both
the frontside
and backside service with Unit of Work enabled and the
"Transactional=true;sync=true" tag in the backend MQ URL, the
connection will leak and the message will be uncommitted in the
GET queue.

Local fix

  • By using two separate instances of the MQ Queue Manager Object,
the connections are managed and this problem does not occur.

Further, if "sync=true" is only used in the MQ URL tag, this
problem is not visible even if one instance of Queue Manager
Object is used for both frontside and backside service.

Problem summary

  • MQ connection leak happens under load when front side handler
and backend URL use the same connection with "Unit of
Work" enabled.

Problem conclusion

  • This change will be in 3.7.3.9.

Temporary fix

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    IC65901
    • 

  • Reported component name
    DATAPOWER
    • 

  • Reported component ID
    DP1234567
    • 

  • Reported release
    373
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt
    • 

  • Submitted date
    2010-01-27
    • 

  • Closed date
    2010-02-15
    • 

  • Last modified date
    2010-04-08
    • 





    

  • 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
    DATAPOWER
    • 

  • Fixed component ID
    DP1234567
    • 



Applicable component levels


    

  • R373  PSY
       UP
    • 








      
              
                            

              

              [{"Business Unit":{"code":"BU059","label":"IBM Software w\/o TPS"},"Product":{"code":"SS9H2Y","label":"IBM DataPower Gateway"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"3.7.3","Edition":"","Line of Business":{"code":"LOB45","label":"Automation"}}]
              

                                                                    

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            11 February 2022
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
Page Feedback