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Lsnrctl Status shows TNS-12541 "no Listener" after a few days on Linux 64 Bit but Listener is still running (Doc ID 2251039.1)

Last updated on FEBRUARY 15, 2020

Applies to:

Oracle Net Services - Version and later
Generic Linux


After a few days of starting the TNS Listener, running "lsnrctl status" does not work.


Initial start:


Connections are working through this listener and ps -ef |grep tnslsnr shows the listener is running.

The Listener cannot be stopped and the process itself has to be killed.


 This may be a new installation on Linux (for example, Redhat 7) when an original installation on Redhat 5 was working without issues.


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