Thursday, January 30, 2014

tnsing TNS-03507 Even Though SQL*Net Succeeds

This error can be encountered using tnsping binary stored in 8.0.6 Oracle Home;
Here is was happens,
[applexadata@ermanapp ~]$ tnsping EXADEV_806_BALANCE
TNS Ping Utility for Linux: Version - Production on 24-JAN-2014 16:24:39
(c) Copyright 1997 Oracle Corporation. All rights reserved.
TNS-03507: Failure looking for ADDRESS keyword

As you see above , we cant ping the defined listener through EXADEV_806_BALANCE using tnsping
But, when we use sqlplus stored in same 8.0.6 Oracle home to connect to the same database through the same tns entry, we can connect successfully.
sqlplus apps/apps@EXADEV_806_BALANCE;

SQL*Plus: Release - Production on Fri Jan 24 16:24:40 2014
(c) Copyright 1999 Oracle Corporation. All rights reserved.
Connected to:
Oracle Database 11g Enterprise Edition Release - 64bit Production
With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP,
Data Mining and Real Application Testing options
SQL>  --> connected successfully.

So this is the problem of tnsping utility stored in 8.0.6 Oracle Home. Maybe the reason is its low software version.. It seems it does not like the format of the tns entry EXADEV_806_BALANCE generated by autoconfig..

Ignore these tnsping error if your application works properly.. Does you EBS components connect to the database using the BALANCE tns properly? Because, this seems to be important.

Oracle describes this as follows :)

The tnsping/tnsping80 utility is not designed in such a way that it will parse a Load Balancing tnsnames.ora file. Since tnsping is a test utility and SQL*Plus connections work, there is no need for any modification in the tnsnames parameter file.

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