IV07550: LOG CONTAINS "SEQUENCE NUMBER OVERFLOW, REUSING 999"

IBM Tivoli Monitoring 6.2.2 Fix Pack 8 (6.2.2-TIV-ITM-FP0008)
IBM Tivoli Monitoring 6.2.2 Fix Pack 9 (6.2.2-TIV-ITM-FP0009)

APAR status

• Closed as program error.

Error description

• PROBLEM DESCRIPTION:
  
  The HUB RAS1 log contains thousands of messages stating
  "Sequence number overflow, reusing 999". Hundreds or thousands
  of these messages occur every second.
  
  RECREATE INSTRUCTIONS:
  - Set the QOMEGAMON_ONLINE situation to have a interval of less
  than 1 minute.
  - Restart the HUB.
  - Problem occurs almost immediately. Check the HUB's RAS1 log
  for the secquence number overflow messages.
  

Local fix

• Do either one of the following:
  
  
  - Change the interval on the QOMEGAMON_ONLINE situation to be at
  least minute - 3 minutes is recommended. It appears this is set
  to 30 seconds right now.
  
  - Specify the HEARTBEAT_INTERVAL in the TEMS configuration file.
  

Problem summary

• RAS1 log contains "Sequence number overflow, reusing 999".
  
  The hub monitoring server RAS1 log contains thousands of
  messages stating "Sequence number overflow, reusing 999".
  Hundreds or thousands of these messages occur every second.
  These messages appear just after the monitoring server start.
  
  The problem is caused by the monitoring server heartbeat being
  issued as quickly. This occurs when the QOMEGAMON_ONLINE
  situation has an interval of less than one minute. The situation
  does not have to be started for this problem to occur.
  

Problem conclusion

• The monitoring server now to includes the "seconds" value from
  the QOMEGAMON_ONLINE situation when determining the monitoring
  server heartbeat interval.
  
  It appears CTIRA_HEARTBEAT can be set in the configuration file
  as another means to control the monitoring server heartbeat
  interval. The variable takes precedence over the value in the
  QOMEGAMON_ONLINE situation.
  
  
  
  The fix for this APAR is contained in the following maintenance
  packages:
  
     | fix pack | 6.2.2-TIV-ITM-FP0007
  

Temporary fix

• Change the QOMEGAMON_ONLINE interval to be at least one minute.
  Three minutes is the recommended value.
  

Comments

APAR Information

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

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

  OA38224 OA39002

Fix information

• Fixed component name

  TEMS

• Fixed component ID

  5724C04MS

Applicable component levels

• R622 PSY

     UP