JR43099: TIME-ELAPSED UCA ARE RESCHEDULED INCORRECTLY IF PROCESS SERVER AND DATABASE ARE IN DIFFERENT TIME ZONES

Version 7.5.1 Fix Pack 1 for the IBM Business Process Manager products

APAR status

• Closed as program error.

Error description

• If you design a UCA for repeated execution, you might experience
  the case that the first execution happens on the defined time,
  while all subsequent executions are moved by one or more hours.
  This situation can happen, if the Process Server and the
  Database are running on different time zones. This fix solves
  this situation so that the UCA execution takes place always on
  the scheduled Process Server time.
  

Local fix

• N/A
  

Problem summary

• Time-elapsed UCA are rescheduled incorrectly if Process Server
  and Database
  are in different time zones.
  
  If you design a UCA for repeated execution, you might experience
  the case
  that the first execution happens on the defined time,
  while all subsequent executions are moved by one or more hours.
  This situation can happen, if the Process Server and the
  Database
  are running on different time zones. This fix solves this
  situation
  so that the UCA execution takes place always on the scheduled
  Process Server time.
  Hint: if the Process Server runs on Linux, the UCA's schedules
  are meant
  without daylight savings time.
  
  Additional Information:
  http://publib.boulder.ibm.com/infocenter/dmndhelp/v7r5m1/index.j
  sp?topic=%2Fcom.ibm.wbpm.wle.editor.doc%2Fmodeling%2Ftopic%2Fusi
  ng_undercover_agents_B.html
  describes how to define an UnderCover Agent for a scheduled
  event.
  In bullet 10, the sample shows how to define the schedule to
  fire at midnight.
  The time specification "midnight" is interpreted as the point in
  time, where the process server machine's clock reaches 24:00
  local time.
  This means, that the local timezone setting of the process
  server machine is used.
  
  In case of clustered process servers, the process servers must
  be set to the same time zone, and their clocks should be
  synchronized.
  For scheduled Undercover Agents, the clocks' times must not
  differ for more than 2.5 minutes.
  
  The process server's databases may reside on a remote machine,
  and this machine may have different timezone and time setting.
  
  Changes to timezone or time setting on process server or
  database machines may cause already scheduled Undercover Agents
  to run at an unexpected time. However, all subsequent executions
  of the Undercover Agents are performed according to the
  specification,
  interpreted as usual: according to the current time zone and
  time setting of the systems.
  

Problem conclusion

• Problem fixed
  iFix available on top of V751 GA
  

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

  BPM STANDARD

• Fixed component ID

  5725C9500

Applicable component levels

• R751 PSY

     UP