PI34617: HIGH CPU SLOW RESPONSE LOTS OF BRDBS - PANEL CHANGE BCAST

Obtain the fix for this APAR.

APAR status

• Closed as program error.

Error description

• High usage of BROADCAST with HOLD option can cause high cpu and
  slow response times if a large screen (62x160) displays more
  than 50 lines (DOMAX 50).
  

Local fix

• ISZ00787
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All users of IBM Session Manager V3.2.       *
  ****************************************************************
  * PROBLEM DESCRIPTION: Large number (50+) of Broadcasts with   *
  *                      HOLD option causes high CPU usage and   *
  *                      slow response times.                    *
  ****************************************************************
  * RECOMMENDATION: Apply the PTF.                               *
  ****************************************************************
  The BROADCAST panel has a DOMAX value of 50. If the number of
  BROADCASTs queued to the USER generates more than 50 lines then
  ISM will inform the USER that the DOMAX value has been breached
  by issuing a BROADCAST to them!  This means we go into a loop
  perpetually issuing BROADCASTs and trying to deliver them to
  the user.
  

Problem conclusion

• The DOMAX value has been extended to 100.
  200Y
  ISZLCAUG
  ISZLDEUG
  ISZLENUG
  ISZLJAUG
  

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:

  UI25681

Modules/Macros

• ISZLCAUG ISZLDEUG ISZLENUG ISZLJAUG
  

Fix information

• Fixed component name

  SESSION MANAGER

• Fixed component ID

  5655U9800

Applicable component levels

• R200 PSY UI25681

     UP15/03/12 P F503

Fix is available

• Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.