Saturday, September 26, 2015

XE Database Listener failed to start

XE Database-Listener Start Error

[oracle@localhost ~]$ lsnrctl start

...

...

System parameter file is /u01/app/oracle/product/11.2.0/xe/network/admin/listener.ora

Log messages written to /u01/app/oracle/product/11.2.0/xe/network/log/diag/tnslsnr/localhost/listener/alert/log.xml

Error listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC_FOR_XE)))

TNS-12555: TNS:permission denied

 TNS-12560: TNS:protocol adapter error

  TNS-00525: Insufficient privilege for operation

   Linux Error: 1: Operation not permitted

 

Listener failed to start. See the error message(s) above...

 

 

I was setting up SOA 12c environment on my personal laptop and thought of giving it a try with oracle 11g XE database. Mind it that Oracle XE database is not officially supported for SOA 12c. Though the installation of XE database was damn easy, setting up of remote DB connection (using tns method) left me quite a bit frustrated.

 

Issue:

The initial connection after the XE setup using tns method was successful, but once I restarted my laptop, subsequent tns connections were failing complaining about listener unavailability. On restarting the listener I received the error shown above.

 

What didn't work?

I tired many things, like assigning ugo+rwx to oracle home, starting the listener using “sudo service  oracle-xe start” but none yield any good results.

 

Solution:

It was after some trials I realized, that to have listener (and DB) running properly, following must be ensured:

a. “lsrnctl start” should be executed by root user only and not with oracle (oracle software owner) user

b. “sqlplus> startup” should be executed by oracle user only

 

 

 

[root@localhost ~]# lsnrctl start

 

LSNRCTL for Linux: Version 11.2.0.2.0 - Production on 18-NOV-2015 20:34:46

..

..

onnecting to (DESCRIPTION=(ADDRESS=(PROTOCOL=IPC)(KEY=EXTPROC_FOR_XE)))

STATUS of the LISTENER

------------------------

Alias                     LISTENER

Version                   TNSLSNR for Linux: Version 11.2.0.2.0 - Production

Start Date                18-NOV-2015 20:34:48

Uptime                    0 days 0 hr. 0 min. 0 sec

Trace Level               off

Security                  ON: Local OS Authentication

SNMP                      OFF

Listener Parameter File   /u01/app/oracle/product/11.2.0/xe/network/admin/listener.ora

Listener Log File         /u01/app/oracle/product/11.2.0/xe/network/log/diag/tnslsnr/localhost/listener/alert/log.xml

Listening Endpoints Summary...

  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC_FOR_XE)))

  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=localhost)(PORT=1521)))

Services Summary...

Service "PLSExtProc" has 1 instance(s).

  Instance "PLSExtProc", status UNKNOWN, has 1 handler(s) for this service...

The command completed successfully

 

[root@localhost ~]# su - oracle

Last login: Wed Nov 18 20:32:43 IST 2015 on pts/1

[oracle@localhost ~]$ . setDB.env

[oracle@localhost ~]$ sqlplus sys/sys@XE as sysdba

Connected to:

Oracle Database 11g Express Edition Release 11.2.0.2.0 - 64bit Production

SQL>

 

Voila!

Continue to #seeITwithSanjay!

1 comment:

  1. Frequently utilized in industrial manufacturing, they rely on G-code packages and form the top prototype by moving across the X, Y, and Z axes. When this system is loaded, an operator will conduct a check of the code to make sure it’s error-free. This trial run is known as} “cutting air,” and is meant to protect the CNC machine by lowering the chance of injury. Even the smallest mistakes involving speed or positioning can Sweaters for Christmas scrape the CNC machine. CNC machining is common in tasks that require a excessive degree of precision and repetition. The course of can accommodate 3D shapes that—in many cases—are too complicated to create through conventional machining.

    ReplyDelete