PM30171: LOAD BALANCER ADVISOR SPINS TRYING TO READ UNTIL THE TIMEOUT OCCURS WHEN NO DATA RECEIVED.

APAR status

• Closed as program error.

Error description

• If an acknowledge is received with no data, Load Balancer's
  advisor will spin trying to read until the receivetimeout
  occurs.
  

Local fix

Problem summary

• ****************************************************************
  * USERS AFFECTED:  WebSphere Application Server Load Balancer  *
  *                  for ipv4 users                              *
  ****************************************************************
  * PROBLEM DESCRIPTION: The advisors may use excessive CPU      *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  If an advisor receives a response with no data (just
  acknowledges receipt of the request), the advisor code will
  spin in a tight CPU loop reading until the request times out.
  

Problem conclusion

• The code was modified to indicate the receipt of an
  ackowledgment and complete the advisor request.
  
  This does not affect Load Balancer for ipv4 and ipv6.
  Fix levels :
  6.1.0.48
  7.0.0.15
  

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

  WEBS LOAD BALAN

• Fixed component ID

  5724H8811

Applicable component levels

• R610 PSY

     UP

• R700 PSY

     UP