TNS-12560: TNS:protocol adapter error TNS-00583: Valid node checking: unable to parse configuration

一、启动监听报错:
LSNRCTL for Linux: Version 11.2.0.3.0 - Production on 17-JUN-2019 05:44:54
Copyright © 1991, 2011, Oracle. All rights reserved.
Welcome to LSNRCTL, type “help” for information
LSNRCTL> start
Starting /u01/app/oracle/product/11.2.0/dbhome_1/bin/tnslsnr: please wait…
TNSLSNR for Linux: Version 11.2.0.3.0 - Production
System parameter file is /u01/app/oracle/product/11.2.0/dbhome_1/network/admin/listener.ora
Log messages written to /u01/app/oracle/diag/tnslsnr/edbjr2p1/listener/alert/log.xml
Error listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=edbjr2p1.example.com)(PORT=1521)))
TNS-12560: TNS:protocol adapter error
TNS-00583: Valid node checking: unable to parse configuration parameters
二、解决办法
增加/u01/app/oracle/product/11.2.0/dbhome_1/network/admin/sqlnet.ora
vi sqlnet.ora
NAMES.DIRECTORY_PATH=(tnsnames,ezconnect)

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