Listener: Connections Failing with TNS-12540, TNS-12518 and TNS-12528 -
(Doc ID 2297802.1)
Last updated on OCTOBER 15, 2017
Applies to:Oracle Net Services - Version 18.104.22.168 and later
Information in this document applies to any platform.
Clients are unable to connect through the listener.
The listener.log is reporting TNS-12540, TNS-12518 and TNS-12528.
Repeated Tns-12518 & Tns-12540 seen in listener.log
Eventually Listener crashes
Tns-12540 -"TNS:internal limit restriction exceeded" Indicates Listener is hitting some it's internal limits especially "Transport Events" (1023) :
To view full details, sign in with your My Oracle Support account.
Don't have a My Oracle Support account? Click to get started!