Oracle listener not running and won't start

Question

I am getting the following errors while from the lsnrctl status command:

C:\\Users\\pna105>lsnrctl stat

 LSNRCTL for 64-bit Windows: Version 11.         


        

Answer 1

I managed to resolve the issue that caused the configuration to fail on a docker container running the Hortonworks HDP 2.6 Sandbox.

If the initial configuration fails the listener will be running and will have to be killed first:

ps -aux | grep tnslsnr
kill {process id identified above}

Then next step is then to fix the shared memory issue which makes the configuration process fail.

Oracle XE requires 1 Gb of shared memory and fails otherwise (I didn't try 512 mb) according to https://blogs.oracle.com/oraclewebcentersuite/implement-oracle-database-xe-as-docker-containers.

vi /etc/fstab

change/add the line to:

tmpfs    /dev/shm     tmpfs   defaults,size=1024m 0 0

Then reload the configuration by:

mount -a

Keep in mind that the next time you restart the docker container you might have to do 'mount -a'.