IBM Support

IV21789: NCP_G_EVENT DEADLOCK DURING FAILOVER/FAILBACK

Fixes are available

IBM Tivoli Network Manager IP 3.9.0 Fix Pack 3, 3.9.0-TIV-ITNMIP-FP0003
IBM Tivoli Network Manager IP 3.9.0 Fix Pack 4, 3.9.0-TIV-ITNMIP-FP0004
IBM Tivoli Network Manager IP Edition 3.9.0 Fix Pack 5, 3.9.0-TIV-ITNMIP-FP0005

Subscribe

You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • Error Description￘
This can occur when the virtual domain process sends a message
to the Gateway requesting that it failover or failback. This
request is made in a table call back which locks the OQL
database store lock. Then it later attempts to acquire the
event processing lock. However, if at the same time there is an
event being processed then it will have the event processing
lock and it'll later want to acquire the OQL database store
lock. But the failover thread already has that lock and the
deadlock occurs.

Local fix

  • Local Fix￘
N/A

Problem summary

  • ****************************************************************
* USERS AFFECTED:                                              *
* 3.9 all platforms, users using failover                      *
****************************************************************
* PROBLEM DESCRIPTION:                                         *
* in a failover environment, if the object server goes down    *
* for an extended period, ncp_g_event can hang causing primary *
* & backup domains to failover & failback continuously         *
****************************************************************
* RECOMMENDATION:                                              *
* restart the primary & backup domains or install patch for    *
* APAR IV21789                                                 *
****************************************************************

Problem conclusion

  • | fix pack | 3.9.0-ITNMIP-FP0002

Temporary fix

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    IV21789
    • 

  • Reported component name
    TIV NETWK MGR I
    • 

  • Reported component ID
    5724S4500
    • 

  • Reported release
    390
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt
    • 

  • Submitted date
    2012-05-25
    • 

  • Closed date
    2012-06-13
    • 

  • Last modified date
    2012-06-13
    • 





    

  • 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
    TIV NETWK MGR I
    • 

  • Fixed component ID
    5724S4500
    • 



Applicable component levels


    

  • R390  PSY
       UP
    • 

  • R401  PSY
       UP
    • 








      
              
                            

              

              [{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSSHRK","label":"Tivoli Network Manager IP Edition"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"3.9","Edition":"","Line of Business":{"code":"LOB45","label":"Automation"}}]
              

                          

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            13 June 2012
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
Page Feedback