IV09873: KT1 CRASH BECAUSE RACE CONDITION IN CONNECTION

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

• TEMS logs show a a race condition between two threads,
  one thread is making use of a connection at the
  same time in which the cleanup thread is destroying it.
  

Local fix

Problem summary

• SQL requests to the management server can result in a race
  condition during the freeing of stale connection handles.  Thus,
  two threads can be using a connnection handle that has already
  been released.
  

Problem conclusion

• Add a lock around the connection handling code so that only one
  thread can access a handle at a time.
  
  The fix for this APAR is contained in the following maintenance
  packages:
    | fix pack | 6.2.2-TIV-ITM-FP0007
    | fix pack | 6.2.3-TIV-ITM-FP0001
  

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:

  OA38215 OA38913 OA38984

Fix information

• Fixed component name

  TEMS

• Fixed component ID

  5724C04MS

Applicable component levels

• R622 PSY

     UP