IJ05429: POSSIBLE HANG DURING POWERHA VERIFY & SYNC AND OTHER PROCESSES

APAR status

• Closed as fixed if next.

Error description

• **************************************************************
  * USERS AFFECTED:
  * Systems running the AIX 7200-00 Technology Level
  * with bos.cluster.rte at or below the 7.2.0.6 level.
    **************************************************************
  * ERROR DESCRIPTION:
  * PowerHA Verify & Sync, clcmd, or other processes that
  * utilize clcomd may hang.
  * Large numbers of zombie processes for clcmd, clmgr, or
  * similar commands may be seen if this is occurring.
  *
  * Restarting clcomd with stopsrc/startsrc will clean up zombie
  * processes and allow clcomd to process new events again;
  * however the issue could re-occur again later, until the fix
  * is applied.
    **************************************************************
  * RECOMMENDATION:
  * An interim fix is available from either
  * ftp://aix.software.ibm.com/aix/ifixes/ij05429/
  * https://aix.software.ibm.com/aix/ifixes/ij05429/
  * Installation of the ifix does not require a reboot.
    **************************************************************
  

Local fix

• Stopping and restarting clcomd (stopsrc -s clcomd;
  startsrc
  -s clcomd) will allow clcomd to process new events, and
  clean up existing zombie processes.  However, it will not
  prevent further hangs.
  

Problem summary

• Operations involving clcomd, such as PowerHA Verify & Sync and
  clcmd commands, may hang.
  

Problem conclusion

Temporary fix

•   *********
    * HIPER *
    *********
  

Comments

• This APAR is being closed FIN. This means that a solution to
  this APAR is expected to be delivered from IBM in a release
  (if any) to be available within the next 24 months.
  

APAR Information

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

  IJ04266

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

Fix information

• Fixed component name

  AIX V7.2

• Fixed component ID

  5765CD200

Applicable component levels