PH47936: INACTIVITY TIMEOUT VALUE LARGER THAN 2147483 SECONDS CAUSES IMMEDIATE CACHE INVALIDATION

APAR status

• Closed as program error.

Error description

• Setting the Inactivity timeout in dynacache to a value larger
  than 2147483 seconds causes immediate cache invalidation.
  

Local fix

• Either set Inactivity timeout to -1 (no timeout) or to a value
  of 2147483 seconds or less.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of IBM WebSphere Application      *
  *                  Server                                      *
  *                  V9.0 using a large inactivity timeout on    *
  *                  distributed map cache entries.              *
  ****************************************************************
  * PROBLEM DESCRIPTION: Cache entries are immediately           *
  *                      invalidated if the inactivity timeout   *
  *                      specified is larger than 2147483        *
  *                      seconds.                                *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  The inactivity timeout is specified in seconds and represented
  as
  a java int on the API.  The timeout is converted to milliseconds
  when dynacache sets the timer.  On large values, the conversion
  to milliseconds exceed the size of a java int and results in a
  negative value causing the cache entry to be immediately
  invalidated.
  

Problem conclusion

• Internally, the timeout will now be represented by a java long
  and allow large timeout values when the seconds are converted
  to
  milliseconds.
  
  The fix for this APAR is targeted for inclusion in fix pack
  9.0.5.14 and 8.5.5.23. For more information, see 'Recommended
  Updates for WebSphere Application Server':
  https://www.ibm.com/support/pages/node/715553
  

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

  WEBSPHERE FOR Z

• Fixed component ID

  5655I3500

Applicable component levels