Listener: Connections Failing with TNS-12540, TNS-12518 and TNS-12528 -
Last updated on OCTOBER 15, 2017
Applies to:Oracle Net Services - Version 22.214.171.124 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) :
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