PI97947: LOAD BALANCER MEMLOAD SCRIPT DOES NOT PROVIDE ACCURATE VALUE ON LINUX

8.5.5.14: WebSphere Application Server V8.5.5 Fix Pack 14
9.0.0.9: WebSphere Application Server traditional V9.0 Fix Pack 9
9.0.0.10: WebSphere Application Server traditional V9.0 Fix Pack 10
8.5.5.15: WebSphere Application Server V8.5.5 Fix Pack 15
9.0.0.11: WebSphere Application Server traditional V9.0 Fix Pack 11
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

• The load balancer memload script indicates that all memory
  used for caching is free memory and this is not accurate.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:  IBM WebSphere Application Server Load       *
  *                  Balancer metricserver users on Linux        *
  ****************************************************************
  * PROBLEM DESCRIPTION: The metric server memload script on     *
  *                      Linux does not provide an accurate      *
  *                      measue of the memory is use.            *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  The memload script (on Linux) assumes all the memory in use
  for caching is free memory. This is not accurate.
  

Problem conclusion

• The memload script has been updated to determine the memory is
  use based upon Linux documentation.
  
  This affects the memload script installed with metric server
  which is available in the Load Balancer for IPv4, the Load
  Balancer for IPv4 and IPv6 and the Site Selector or Content
  Based Routing (CBR) components.
  
  Fix levels:
      8.5.5.14
      9.0.0.9
  

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

• R850 PSY

     UP

• R900 PSY

     UP