PH41964: WEBSPHERE EDGE LOAD BALANCER CREATE AN IDLE KERNEL PROCESS THAT IS NEVER DESTROYED.

APAR status

• Closed as program error.

Error description

• On AIX, starting the executor of WebSphere Edge Load Balancer
  creates an idle kernel process.  This process is never
  destroyed even if the Load Balancer processes are stopped. A
  reboot is necessary to destroy the idle processes created.
  

Local fix

• Workaround: Restart the machine.
  No local fix.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:  IBM WebSphere Application Server Edge Load  *
  *                  Balancer users on AIX                       *
  ****************************************************************
  * PROBLEM DESCRIPTION: This issue occurs for all AIX Load      *
  *                      Balancer users. The idle processes      *
  *                      may affect AIX 'uptime' reports.        *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  When the Load Balancer executor started on AIX, a
  new kernel process is also created. This kernel process is
  always in the idle state. The output from 'ps -efk' shows
  these idle processes:
  - pid      -  -                    - <idle>
  The process are not destroyed when the Load Balancer is
  stopped.
  The idle kernel processes can effect the accuracy of 'uptime'.
  

Problem conclusion

• The Load Balancer executor was creating a kernel process when
  started. This process is never used. The process creation was
  originally added when the executor was moved out of the kernel
  space but this code was not removed when the executor was
  moved back into kernel space due to poor performance running
  outside the kernel space.
  
  Fix levels:
     8.5.5.21
     9.0.5.11
  

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

  WS EDGE LB IPV4

• Fixed component ID

  5724H8812

Applicable component levels