PH10103: Enable RLimitCPU on z/OS

9.0.5.0: WebSphere Application Server traditional Version 9.0.5 Refresh Pack
9.0.5.1: WebSphere Application Server traditional Version 9.0.5 Fix Pack 1
9.0.5.2: WebSphere Application Server traditional Version 9.0.5 Fix Pack 2
8.5.5.17: WebSphere Application Server V8.5.5 Fix Pack 17
9.0.5.3: WebSphere Application Server traditional Version 9.0.5 Fix Pack 3
8.5.5.20: WebSphere Application Server V8.5.5.20
8.5.5.18: WebSphere Application Server V8.5.5 Fix Pack 18
8.5.5.19: WebSphere Application Server V8.5.5 Fix Pack 19
8.5.5.16: WebSphere Application Server V8.5.5 Fix Pack 16
8.5.5.21: WebSphere Application Server V8.5.5.21

APAR status

• Closed as program error.

Error description

• RLimitCPU has no effect on z/OS
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:  Users of IBM HTTP Server on z/OS            *
  ****************************************************************
  * PROBLEM DESCRIPTION: The RLimitCPU directive currently has   *
  *                      no effect on z/OS                       *
  ****************************************************************
  * RECOMMENDATION:  Apply this fix if using IBM HTTP Server on  *
  *                  z/OS and wish to have RLimitCPU be          *
  *                  effective for IBM HTTP Server.              *
  ****************************************************************
  mod_cgi: Pass RLimitCPU and RLimitMem through to CGI
  processes
  executed with __spawn2() on z/OS. Requires OA57179.
  

Problem conclusion

• RLimitCPU and RLimitMem should now be honored on z/OS.
  
  Notes:
  
  1.
  On z/OS, the minimum value for RLimitCPU is "7" and for
  RLimitMEM is "1048576"
  
  2.
  This directive has no affect on z/OS 2.4 unless at least
  one condition below is true:
   - USS APAR OA58079 (PTF UJ00529) is installed
   - SAFRunAs is enabled for the CGI request
  
  3.
  This directive has no affect on z/OS 2.3 and earlier unless
  at least one condition below is true:
  - USS APAR OA58749 is installed
  - SAFRunAs is enabled for the CGI request
  
  This fix is targeted for IBM HTTP Server fix packs:
  - 8.5.5.16
  - 9.0.5.1
  

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

  WAS IHS ZOS

• Fixed component ID

  5655I3510

Applicable component levels

• R850 PSY

     UP