PH35470: PMI STATS FOR THE SERVLET ARE NOT COLLECTED FOR APPLICATION UNTIL APPLICATION IS RESTARTED

APAR status

• Closed as program error.

Error description

• In the case where the servlet is defined with:
  <load-on-startup>1</load-on-startup>
  
  And these SMF settings enabled:
  server_SMF_request_activity_CPU_detail=1
  server_SMF_request_activity_enabled=1
  
  The servlet PMI stats are zero until the application is
  restarted
  

Local fix

• restart application or disable
  server_SMF_request_activity_enabled
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:  IBM WebSphere Application Server for z/OS   *
  *                  version 8.5.5 and 9.0 users of servlets     *
  *                  with PMI and SMF enabled.                   *
  ****************************************************************
  * PROBLEM DESCRIPTION: Missing PMI stats for servlets using    *
  *                      load-on-startup while SMF enabled.      *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  There is a condition during server startup where applications
  that have specified servlet load-on-startup and the server
  property server_SMF_request_activity_CPU_detail=1 defined will
  have missing Performance Monitoring Infrastructure (PMI) data
  for that servlet until the application is recycled.  The issue
  is that load-on-startup causes the servlet to initialize PMI,
  but then the first System Management Facility (SMF) collection
  request at a point later in time also does PMI
  initialization resulting in the original PMI object to be lost.
  

Problem conclusion

• This WebContainer fix resolves the PMI collection issue when
  both servlet load-on-startup in an application and SMF
  collection in the server are set.
  
  The fix for this APAR is currently targeted for inclusion in
  fixpack 8.5.5.20 and 9.0.5.8.
  
  Please refer to the recommended updates page for delivery
  information:
  
  http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
  

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