TNS-12560: TNS:protocol adapter error
Posted by Kamran Agayev A. on 31st July 2012
Today, after installing Critical Security Patches, the listeners didn’t start up and I got the following error:
-bash-3.2$ lsnrctl status
LSNRCTL for HPUX: Version 10.2.0.4.0 – Production on 31-JUL-2012 14:24:51
Copyright (c) 1991, 2007, Oracle. All rights reserved.
Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521))
TNS-12541: TNS:no listener
TNS-12560: TNS:protocol adapter error
TNS-00511: No listener
HPUX Error: 239: Connection refused
When I tried to start it, I got the following error:
-bash-3.2$ lsnrctl start LISTENER
LSNRCTL for HPUX: Version 10.2.0.4.0 – Production on 31-JUL-2012 14:25:01
Copyright (c) 1991, 2007, Oracle. All rights reserved.
Starting /home/oracle/product/10gR2/bin/tnslsnr: please wait…
TNS-12547: TNS:lost contact
TNS-12560: TNS:protocol adapter error
TNS-00517: Lost contact
HPUX Error: 32: Broken pipe
Actually I hate these type of unknown and unexplainable errors. After checking metalink notes, I didn’t get any useful information.
As I got the error after patch installation, I tried to relink tns again:
-bash-3.2$ cd $ORACLE_HOME/network/lib
-bash-3.2$ make -f ins_net_server.mk.32 install
Then I started the listener and succeeded 
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