ORA-28545: error diagnosed by Net8 when connecting to an agent error

Question

Hi,
I've to setup the Oracle Gateway service in order to access the SQL Server 2005 db from Oracle11g 11.1.0.7.0 db which is running on a LINUX os.
Basically, i've to periodically PULL data from SQL Server to oracle.
Have done the necessary setup as specified in Oracle docs.
1. Oracle ini file: initdg4msql.ora
HS_FDS_CONNECT_INFO=999.168.0.1:1433//SqlServerDb
HS_FDS_TRACE_LEVEL=OFF
HS_FDS_RECOVERY_ACCOUNT=sqlserver_user_id
HS_FDS_RECOVERY_PWD=sqlserver_user_password
2. listener.ora entry
LISTENER_GATEWAY =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = oracle.portal.internal)(PORT = 1522))
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1522))
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(SID_NAME = OBIM1)
(ORACLE_HOME = /app/oracle/product/11.1.0/db_1)
(SID_DESC =
(SID_NAME = dg4msql)
(ORACLE_HOME = /app/oracle/product/11.1.0/db_1)
(ENVS=LD_LIBRARY_PATH=/app/oracle/product/11.1.0/db_1/dg4msql/driver/lib;/app/oracle/product/11.1.0/db_1/lib)
(PROGRAM = dg4msql)
3. tnsnames.ora entry
dg4msql =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = tcp)(HOST = oracle.portal.internal)(PORT = 1522))
(CONNECT_DATA =(SID = dg4msql))
(HS = OK)
4. Create database link on oracle
create public database link sqlserver connect to "sqlserver_user_id" identified by "sqlserver_user_password" using 'dg4msql';
Database link created.
Upon the completion of the configuration, I did the following and all are successful and working:
- starting the listener by
lsnrctl start LISTENER_GATEWAY
- tnsping my gateway
tnsping dg4msql
However, when I tried to retreive data and got the following error:
SQL> desc myTestingTable@sqlserver;
ERROR:
ORA-28545: error diagnosed by Net8 when connecting to an agent
Unable to retrieve text of NETWORK/NCR message 65535
ORA-02063: preceding 2 lines from SQLSERVER
I have stepped through the doc of "How to Setup DG4MSQL (Oracle Database Gateway for MS SQL Server) Release 11" but unable to figure out where the error lies.
Any inputs on this?? please help, I am in urgent.

Answer 1

Hi Mike,
As suggested, I have tried both formats with the spaces at the front. When I tried to start the listener, still get the error as show below:
Starting /app/oracle/product/11.1.0/db_1/bin/tnslsnr: please wait...
TNSLSNR for Linux: Version 11.1.0.7.0 - Production
System parameter file is /app/oracle/product/11.1.0/db_1/network/admin/listener.ora
Log messages written to /app/oracle/diag/tnslsnr/p1db01/listener_gateway/alert/log.xml
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=oracle.portal.internal)(PORT=1522)))
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1522)))
TNS-01155: Incorrectly specified SID_LIST_LISTENER_GATEWAY parameter in LISTENER.ORA
NL-00305: the specified path name does not exist
As answers to your points -
- you have the HOST defined as -
(HOST = oracle.portal.internal)
is this the actual host name or did you change it to hide it in the post ?
*** It is just a mark up host for security reason
- what happens if you use the IP address instead of the hostname ?
*** Have tried the IP address but same error
- is the gateway installed in the directory /app/oracle/product/11.1.0/db_1 ?
*** Yes
- can you set up listener level 16 tracing and check the trace file for further information about the errors ? Add this to the listener.ora file -
trace_level_listener=16
and start the listener.
*** Have added the trace level 16 and tried to start the listener but same error. Please refer the snapshot from the log.xml. Please note that the host_id "oracle" is just a make-up.
<txt>Listener completed notification to CRS on start
</txt>
</msg>
<msg time='2010-04-17T15:37:56.544+10:00' org_id='oracle' comp_id='tnslsnr'
type='UNKNOWN' level='16' host_id='oracle'
host_addr='99.999.99.99'>
<txt>
TIMESTAMP * CONNECT DATA [* PROTOCOL INFO] * EVENT [* SID] * RETURN CODE
</txt>
</msg>
<msg time='2010-04-17T15:37:56.545+10:00' org_id='oracle' comp_id='tnslsnr'
type='UNKNOWN' level='16' host_id='oracle'
host_addr='10.254.84.32'>
<txt>TNS-01155: Incorrectly specified SID_LIST_LISTENER_GATEWAY parameter in LISTENER.ORA
NL-00305: the specified path name does not exist
</txt>
</msg>
- I have repeated the same steps above by changing the SID_LIST_LISTENER_GATEWAY back to SID_LIST_LISTENER parameter in LISTENER.ORA
The listener can be started but back to square one with ORA-28545 error as show below:
SQL> desc myTestingTable@sqlserver;
ERROR:
ORA-28545: error diagnosed by Net8 when connecting to an agent
Unable to retrieve text of NETWORK/NCR message 65535
ORA-02063: preceding 2 lines from SQLSERVER
Thanks