Trying to connect to AS400 from Oracle = ORA-28545

Question

Hello,
I woul like to connect to an AS400 DB from an Oracle DB (OS: Windows Server 2003 SP2 - 32 bits, DB: Oracle DB 10g Release 10.2.0.1.0).
To that, I have done the following steps:
1) Create System DSN
Name: AS400_DTA
Driver: iSeries Access ODBC Driver
2) Edit tnsnames.ora:
SID_LIST_LISTENER =
(SID_DESC =
(SID_NAME = AS400_DTA)
(ORACLE_HOME = D:\oracle\bise1\db)
(PROGRAM = hsodbc)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
(ADDRESS = (PROTOCOL = TCP)(HOST = HOST)(PORT = 1521))
3) Edit listener.ora:
(SID_DESC =
(SID_NAME = AS400_DTA)
(ORACLE_HOME = D:\oracle\bise1\db)
(PROGRAM = hsodbc)
4) create initAS400_DTA in D:\oracle\bise1\db\hs\admin:
(SID_DESC =
(SID_NAME = AS400_DTA)
(ORACLE_HOME = D:\oracle\bise1\db)
(PROGRAM = hsodbc)
5) Restart the listener
6) Create DB link:
create public database link AS400_DTA connect to "user" identified by "pwd" using 'AS400_DTA';
In this step I have the following error:
Link  : "CRPDTA.REGRESS.RDBMS.DEV.US.ORACLE.COM"
Error : ORA-28545: error diagnosticado por Net8 al conectar a un agente
Unable to retrieve text of NETWORK/NCR message 65535
ORA-02063: 2 lines precediendo a DTA
What I am doing wrong? How can I solve the issue?
How can I test the ODBC drivers to ensure that connectivity is made to the AS400 database?
If I execute > tnsping AS400_DTA, the result is:
TNS Ping Utility for 32-bit Windows: Version 10.2.0.1.0 - Production on 15-JUN-2011 15:05:37
Copyright (c) 1997, 2005, Oracle. All rights reserved.
Archivos de parámetros utilizados:
D:\oracle\bise1\db\network\admin\sqlnet.ora
Adaptador TNSNAMES utilizado para resolver el alias
Attempting to contact (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = 10.18.125.103)(PORT = 1521))) (CONNECT_DATA = (SID = AS400_CRPDTA)) (HS = OK))
TNS-12541: TNS:no hay ningún listener
I appreciate any idea/suggestion.
Thank you in advance!
Regards,
Mónica.

Answer 1

Monica,
The error reported from the tnsping is -
Adaptador TNSNAMES utilizado para resolver el alias
Attempting to contact (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = 10.18.125.103)(PORT = 1521))) (CONNECT_DATA = (SID = AS400_CRPDTA)) (HS = OK))
TNS-12541: TNS:no hay ningún listener
so looks like a problem with the listener and it is also reporting the SID as AS400_CRPDTA and not AS400_DTA as you have in the tnsnames.ora. Are you accessing the correct tnsnames.ora file ?
Also, the listener.ora entry is -
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1))
(ADDRESS = (PROTOCOL = TCP)(HOST = HOST)(PORT = 1521))
Are you using the actual host name in the HOST entry instead of (HOST = HOST) ?
What is the output from issuing -
lsncrtl
then the 'status' and 'services' command ?
And an obvious question - did you stop and start the listener after adding the new entry ?
Also, this is completely incorrect -
4) create initAS400_DTA in D:\oracle\bise1\db\hs\admin:
(SID_DESC =
(SID_NAME = AS400_DTA)
(ORACLE_HOME = D:\oracle\bise1\db)
(PROGRAM = hsodbc)
The initAS400_DTA.ora file should only have these entries -
HS_FDS_CONNECT_INFORMATION =AS400_DTA
HS_FDS_TRACE_LEVEL=debug
And finally, 10.2 HSODBC is now desupported and you should install and use the replacement product which is the 11g Database Gateway for ODBC (DG4ODBC).
The following note has links to further information -
Note.1083703.1 Master Note for Oracle Gateway Products
If you want to continue to use HSODBC then refer to this note -
Note 109730.1 How to setup generic connectivity (HSODBC) for Windows NT
but we strongly recommend you install and use DG4ODBC so that you are on a fully supported version.
Regards,
Mike