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IJ09741: CAA:UNEXPECTED CLCONFD STARTUP ON STOPPED NODE LEADS TO DEADLOCKAPPLIES TO AIX 7100-04

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APAR status

  • Closed as program error.

Error description

  • After a reboot of a STOPPED node, a manual startup of
clconfd can result in a deadlock which prevents the node
from starting CAA cluster services.

The syslog shows repetitious messages:

Sep 18 16:00:46 aix1aiib19p caa:info unix:
kcluster_lock.c      wait_on_node_bringup    480
Active node count = 0 rc = -1 code = 455
Sep 18 16:00:46 aix1aiib19p caa:err|error unix:
kcluster_lock.c get_storage_nodecnt     105
NDD_NODE_CNT returned rc=16
Sep 18 16:00:47 aix1aiib19p caa:err|error unix:
kcluster_lock.c get_storage_nodecnt     105
NDD_NODE_CNT returned rc=16
Sep 18 16:00:47 aix1aiib19p caa:err|error unix:
kcluster_lock.c get_storage_nodecnt     105
NDD_NODE_CNT returned rc=16
Sep 18 16:00:48 aix1aiib19p caa:info unix:
kcluster_lock.c      get_storage_nodecnt     132
NDD_NODE_CNT rc 16 count -1 line 113
Sep 18 16:00:48 aix1aiib19p caa:info unix:
kcluster_lock.c      count_active_nodes      393      rc
-1 code 314 num_nodes_active 0 up_node_cnt 0 db_node_cnt
0
Sep 18 16:00:48 aix1aiib19p caa:info unix:
kcluster_lock.c      count_active_nodes      395
num_local_nodes_active 0 local_up_node_cnt 0
local_db_node_cnt 0
Sep 18 16:00:48 aix1aiib19p caa:info unix:
kcluster_lock.c      wait_on_node_bringup    480
Active node count = 0 rc = -1 code = 455
Sep 18 16:00:48 aix1aiib19p caa:err|error unix:
kcluster_lock.c get_storage_nodecnt     105
NDD_NODE_CNT returned rc=16

Local fix

  • "stopsrc -s clconfd" or "kill -9 clconfd_pid", followed
by
"clmgr online node START_CAA=yes"

Problem summary

  • An operation to start a CAA node will fail due to failure to
obtain lock.

Problem conclusion

  • Do not attempt to JOIN a STOPPED node to the CAA cluster.

Temporary fix

  • 



Comments


    

  • 7100-04 - use AIX APAR IJ09741
7100-05 - use AIX APAR IJ09764
7200-01 - use AIX APAR IJ13807
7200-02 - use AIX APAR IJ13519
7200-03 - use AIX APAR IJ12372

    



APAR Information




    

  • APAR number
    IJ09741
    • 

  • Reported component name
    AIX V7.1
    • 

  • Reported component ID
    5765H4000
    • 

  • Reported release
    710
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt / Xsystem
    • 

  • Submitted date
    2018-09-27
    • 

  • Closed date
    2018-09-28
    • 

  • Last modified date
    2019-11-14
    • 





    

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

    • 

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

    
IJ09764 IJ09871 IJ12372 IJ13519 IJ13807
    

    • 



Fix information


    

  • Fixed component name
    AIX V7.1
    • 

  • Fixed component ID
    5765H4000
    • 



Applicable component levels


    

  • R710  PSY  U879895
       UP19/07/15  I  1000
    • 








      
              
                            

              

              [{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SG11R"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"710","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}}]
              

                                                                    

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            20 April 2022
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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