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Home -> Community -> Mailing Lists -> Oracle-L -> RE: Heterogeneous Replication
DataDirect is a 3rd party driver. www.datadirectnet.com
It isn't cheap if you figure you only use it via three views acouple of times a day for a something that could be done in the app via ODBC and then not give me continuous Oracle errors and problems on my Oracle production database. RANT....... sorry, breath, breath, breath.
Oh I forgot to mention if you do the hs services:
after you change your listener.ora and tnsnames.ora - stop and start your listener/s, don't just restart it.
if you use database links, make sure you put double quotes around you
username and password!!!!!
this prevents some other 28500 errors
Kathy
-----Original Message-----
From: Goulet, Dick [mailto:DGoulet_at_vicr.com]
Sent: Thursday, January 29, 2004 11:58 AM
To: oracle-l_at_freelists.org
Subject: RE: Heterogeneous Replication
Kathy,
Sure your not using the Sql*Server gateway product? I can't find
any =
licensing info on Oracle.com about it & our sales rep didn't understand =
what we were talking about either (not a first I should also mention). =
Also as is noted on Oracle.com these types of products are not sold by =
the CPU, but for the computer as a whole.
BTW: That's cheap. Try Partitioning at $10K per cpu or RAC at $20K per.
Dick Goulet
Senior Oracle DBA
Oracle Certified 8i DBA
-----Original Message-----
From: Duret, Kathy [mailto:kduret_at_starkinvestments.com]
Sent: Thursday, January 29, 2004 11:54 AM
To: 'oracle-l_at_freelists.org'
Subject: RE: Heterogeneous Replication
Watch / How you are using it. =20
We are using Heterogeneous services with a driver from data direct to =
access
some data in our sql server and oracle in 3 different oracle views.
$2,000/cpu so this is not cheap
Personally, I am not happy doing this... I wanted the deveopers to have =
the
app open a separate ODBC connection and get the data
So when sql server goes down, we need to restart the app anyway. Once =
the
application is up again, if someone accesses the view via an old =
connection=20
to the Oracle database, we get ora-28500 errors, some solaris page =
swapping
and the database load goes up for a bit.
If Sql Server hangs and someone accesses the Oracle/Sql Server view - =
guess
what? Yep=20
Plus as an added bonus we got a new error last week [LEMRIST()+384]
[SIGSEGV] [ADDRESS NOT MAPPED TO OBJECT] [12] ORA-07445
not sure what happened with sql server this time (I think it hung), =
Oracle
datatbase when to a crawl, the machine was swapping and we pegged memory =
for
acouple of minutes. I logged a tar with Oracle and all they could =
suggest
was to increase our swap space. This seemed unrealistic since we =
already
have
2G of swap space and normally don't even use 1/4 of this space on a very
busy day.
Let me know what you find out from Golden Gate and if there connection =
works
better.
Good Luck,
Kathy
long time listener, many time caller, first time responder.......
-----Original Message-----
From: Nikhil Khimani [mailto:nkhimani_at_marketaxess.com]
Sent: Thursday, January 29, 2004 9:39 AM
To: 'oracle-l_at_freelists.org'
Subject: Heterogeneous Replication
L&G,
We are looking at replicating data from Oracle (8.1.7.0 and 9.2.0.4) to
MS-SQL (2K). I would like to know if anyone has done this using
heterogeneous services and if yes would you please get me started at =
least
with the right links to RTFM. Anything additional will be gravy. We are =
also
looking at Golden Gate solutions (for Oracle to MS-SQL) and I'd =
appreciate a
feed-back, if anyone has had any experience with it.=20
Kind Regards,
=20
Nikhil=20
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