DG4MSQL: Multiple instances not working (only single instance)?

Question

Hi I've been successfully using DG4MSQL for months to extract data from a local SQL Server 2005 instance to our 10g Ent 10.2.0.3 instance.
Today I was asked to add two more SQL server DB links on separate servers running the same version of SQL Server. Using the directions here seemed pretty straight forward, but I still can't get my two new SIDs (defined in the same listener) to respond. Every query over one of my new database links yields the usual
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 VHAV10PCSSQL
and my listener log shows a captain obvious:
TNS-12505: TNS:listener does not currently know of SID given in connect descriptor
Does anyone have experience setting up multiple gateways with DG4MSQL and SQL Server? I think the instructions may be missing something.
listener.ora:
SID_LIST_dg4msql =
(SID_LIST=
(SID_DESC=
(SID_NAME=dg4msql)
(ORACLE_HOME=/export/app/oracle-ee/product/dg4msql)
(PROGRAM=dg4msql)
(SID_DESC=
(SID_NAME=server2)
(ORACLE_HOME=/export/app/oracle-ee/product/dg4msql)
(PROGRAM=dg4msql)
(SID_DESC=
(SID_NAME=server3)
(ORACLE_HOME=/export/app/oracle-ee/product/dg4msql)
(PROGRAM=dg4msql)
dg4msql =
(ADDRESS_LIST=
(ADDRESS=(PROTOCOL=tcp)(HOST=localhost)(PORT=1522))
initX.ora:
HS_FDS_CONNECT_INFO=serverX:1433//instance
# alternate connect format is hostname/serverinstance/databasename
HS_FDS_TRACE_LEVEL=OFF
HS_FDS_RECOVERY_ACCOUNT=RECOVER
HS_FDS_RECOVERY_PWD=RECOVER
tnsnames.ora:
serverx =
(DESCRIPTION=
(ADDRESS=(PROTOCOL=tcp)(HOST=localhost)(PORT=1522))
(CONNECT_DATA=(SID=serverx))
(HS=OK)
)

Answer 1

Hi thanks for the reply.
Yes I did restart the listener using an /etc/init.d/oracle_dg4msql script I created when I established the original instance. Interestingly, the output mentions only the one dg4msql instance with one service. It's like my listener.ora isn't even being used or the oracle_home isn't set correctly... D'oh!! Thanks for making me take a closer look. The correct listener.ora is not +/export/app/oracle-ee/product/dg4msql/dg4msql/admin/listener.ora+, it's +/export/app/oracle-ee/product/dg4msql/network/admin/listener.ora+. Yet another headache averted. Talk about annoyance! I'll put a big fat README reminder in that faux config folder. Thank you again.
Starting /export/app/oracle-ee/product/dg4msql/bin/tnslsnr: please wait...
TNSLSNR for Linux: Version 11.1.0.6.0 - Production
System parameter file is */export/app/oracle-ee/product/dg4msql/network/admin/listener.ora*
Log messages written to /export/app/oracle-ee/diag/tnslsnr/vhamiwsqlan/dg4msql/alert/log.xml
Listening on: (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=server.domain.etc)(PORT=1522)))
Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=localhost)(PORT=1522))
STATUS of the LISTENER
Alias                     dg4msql
Version                   TNSLSNR for Linux: Version 11.1.0.6.0 - Production
Start Date                09-JUN-2010 08:02:49
Uptime                    0 days 0 hr. 0 min. 0 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   /export/app/oracle-ee/product/dg4msql/network/admin/listener.ora
Listener Log File         /export/app/oracle-ee/diag/tnslsnr/vhamiwsqlan/dg4msql/alert/log.xml
Listening Endpoints Summary...
+(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=server.domain.etc.etc)(PORT=1522)))+
Services Summary...
Service "dg4msql" has 1 instance(s).
Instance "dg4msql", status UNKNOWN, has 1 handler(s) for this service...
The command completed successfully