My Oracle Support Banner

RAC Connection Load Balancing Skewed / Incorrect (Doc ID 557061.1)

Last updated on SEPTEMBER 17, 2020

Applies to:

Oracle Net Services - Version to [Release 10.2]
Oracle Database - Enterprise Edition - Version to [Release 10.2]
Information in this document applies to any platform.
All connections to RAC cluster are not evenly distributed
Affects only 10.2.x


Connections to RAC cluster are not balanced between nodes.
Often a restart of the RDBMS or TNS Listener allows connections to be balanced for short while.

PMON trace show large time gaps between updates:

Level 16 Oracle Net Listener trace also shows lbscore increasing on some node, but not all.


To view full details, sign in with your My Oracle Support account.

Don't have a My Oracle Support account? Click to get started!

In this Document

My Oracle Support provides customers with access to over a million knowledge articles and a vibrant support community of peers and Oracle experts.