IT18234: ONMODE_MON THREAD IN PRIMARY CAN LOOP IN DR_MODE IF PROMOTE AN IFXCLONE RSS CREATION TOO QUICKLY TO AN HDR SERVER

APAR status

• Closed as program error.

Error description

• When the problem occurs, the onmode_mon thread will continually
  loop in dr_mode with the following stack
  and you will not be able to run any more onmode commands on the
  primary:
  
  Stack for thread: 22 onmode_mon
   base: 0x0000000045c8e000
    len:   69632
     pc: 0x00000000013eaa6f
    tos: 0x0000000045c9b520
  state: sleeping
     vp: 1
  
  (oninit) yield_processor_svp
  (oninit) mt_yield
  (oninit) dr_mode
  (oninit) onmode_monitor
  (oninit) th_init_initgls
  (oninit) startup
  
  In general, the problem occurs when we try to run onmode -d
  primary and onmode -d secondary commands to promote
  a secondary from RSS to HDR before the ifxclone process to
  create the RSS has completed.
  
  We allow these commands to run while the ifxclone process is
  still clearing the physical and logical logs on the secondary.
  

Local fix

• To work around the problem, wait for the message below to appear
  in the RSS online.log before starting the HDR promotion:
  
  DR: RSS secondary server operational
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * All users                                                    *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * See Error Description                                        *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Update to IBM Informix Server 12.10.xC9                      *
  ****************************************************************
  

Problem conclusion

• Problem Fixed In IBM Informix Server 12.10.xC9
  

Temporary fix

Comments

APAR Information

• 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

  INFORMIX SERVER

• Fixed component ID

  5725A3900

Applicable component levels

• RA10 PSN

     UP

• RA10 PSY

     UP

• RB10 PSN

     UP

• RB10 PSY

     UP

• RB50 PSN

     UP

• RB50 PSY

     UP

• RB70 PSN

     UP

• RB70 PSY

     UP

• RC10 PSN

     UP

• RC10 PSY

     UP