PH53848: TIMEZONE OFFSET CUSTOM LOG FORMATS ARE UNRELIABLE ON WINDOWS

APAR status

• Closed as program error.

Error description

• Custom LogFormat additions using syntax like "%{%z}t" to display
  the timezone offset in the access log often return garbage data
  in IHS for Windows.
  
  These configurations use the underlying strftime() of the
  platform. The windows manual for strftime() mentions some
  limitations with using this field.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:  All users of IBM HTTP Server on Windows     *
  ****************************************************************
  * PROBLEM DESCRIPTION: On Windows, using the %z strftime       *
  *                      identifier does not reliably return a   *
  *                      timezone.                               *
  *                      For example, "LogFormat %{%z}t"         *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  Any %{...}t that includes the %z format may return the wrong or
  nonsense value.
  

Problem conclusion

• A new format was added, %{tzoff}t, to return the timezone info
  expected by %{%z}t
  
  The fix for this APAR is targeted for inclusion in IBM HTTP
  Server fix packs 8.5.5.24 and 9.0.5.16. For more information, se
  '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

  IBM HTTP SERVER

• Fixed component ID

  5724J0801

Applicable component levels