Oracle listeners cannot be started in AIX, for example, IBM/AIXRISCSystem/6000 Error: 79.

1. After AIX is restarted, the Oracle Database Listener cannot be started. 2. For example: gt; lsnrctlstatusConnectingto (DESCRIPTION (ADDRESS (PROTOCOLTCP )(

1. After AIX is restarted, the Oracle Database Listener cannot be started. 2. For example: gt; lsnrctl statusConnecting to (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP )(

1. After AIX is restarted, the Oracle Database Listener cannot be started.

2. For example:

> Lsnrctl status

Connecting to (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP) (HOST = ip) (PORT = 1521 )))

TNS-12541: TNS: no listener

TNS-12560: TNSrotocol adapter error

TNS-00511: No listener

IBM/aix risc System/6000 Error: 79: Connection refused

> Lsnrctl start

LSNRCTL for IBM/aix risc System/6000: Version10.2.0.1.0-Production on 02-AUG-

09:26:12 2010

Copyright (c) 1991,200 5, Oracle. All rights reserved.

Starting/usr/oracle/oms/102_64/bin/tnslsnr: please wait...

TNSLSNR for IBM/AIX assume System/6000: Version10.2.0.1.0-Production

System parameter file is/usr/oracle/oms/102_64/network/admin/listener. ora

Log messages written to/usr/oracle/oms/102_64/network/log/listener. log

Listening on: (DESCRIPTION = (ADDRESS = (PROTOCOL = tcp) (HOST = ip) (PORT = 1521)

))

Connecting to (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP) (HOST = ip) (PORT = 1521)

))

3. The database cannot be started.

$ Sqlplus "/as sysdba"

SQL * Plus: Release10.2.0.1.0-Production on Mon Aug 2 09:26:24 2010

Copyright (c) 1982,200 5, Oracle. All rights reserved.

SQL> select * from v $ instance;

Select * from v $ instance

*

ERROR at line 1:

A ORA-01034: ORACLE not available

SQL>

SQL>

SQL>

SQL> startup

ORA-01078: failure in processing system parameters

LRM-00109: cocould not open parameter file '/usr/oracle/oms/102_64/dbs/initTEST. ora

Cause: the above reason is mainly because the/etc/hosts file was changed. After the database is restarted, the hostname of the AIX system is inconsistent with that in/etc/hosts, resolve the above problem by keeping the system's hostname consistent with the name in/etc/hosts. The listener. ora listener of Oracle has a great relationship with/ect/hosts of AIX.