Repeating TNS-12518, TNS-12549, ... Error: 11: 'Resource Temporarily Unavailable' Errors in listener log
Last updated on NOVEMBER 20, 2017
Applies to:Oracle Net Services - Version 10.2.0.2 to 18.104.22.168 [Release 10.2 to 11.2]
Information in this document applies to any platform.
***Checked for relevance on 14-JUL-2016***
This problem can occur on any platform.
Listener log shows repeating error stack below for connection requests to an Oracle10g R2 instance:
TNS-12518: TNS:listener could not hand off client connection
TNS-12549: TNS:operating system resource quota exceeded
TNS-12560: TNS:protocol adapter error
TNS-00519: Operating system resource quota exceeded
IBM/AIX RISC System/6000 Error: 11: Resource temporarily unavailable
Connection requests fail to connect to the Oracle instance. This is clearly a resource depletion problem.
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