ADR_BASE_LISTENER = /u01/app/oracleThe listener must be restarted for the change to take effect.$ lsnrctl stop $ lsnrctl startIf the "diag" directory is not already present, it will be created when the listener or database are started with the new setting....
TNSLSNR for Linux: Version 12.1.0.2.0 - Production System parameter file is /opt/oracle/product/12.1.0.2/dbhome_1/network/admin/listener.ora Log messages written to /opt/oracle/diag/tnslsnr/4c5a2d9ca68f/listener/alert/log.xml Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1)...