Shared server connections hang after installing CPUJAN2006
(Doc ID 361273.1)
Last updated on APRIL 14, 2022
Applies to:Oracle Database - Enterprise Edition - Version 184.108.40.206 to 220.127.116.11 [Release 9.2]
Information in this document applies to any platform.
Connections via dispatchers hang.
For each failed connection via dispatcher, the listener will log three errors in the listener log as shown.
TNS-12518: TNS:listener could not hand off client connection
TNS-12560: TNS:protocol adapter error
TNS-530: Protocol adapter error
For each failed connection attempt, the number of "refused connections", shown with lsnrctl services, will increment by 1.
Shared Server connections hang after installing the CPUJAN2006 patch.
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