Standby services on the primary - and shouldn't be
- From: Herring Dave - dherri <Dave.Herring@xxxxxxxxxx>
- To: "Oracle-L (oracle-l@xxxxxxxxxxxxx)" <oracle-l@xxxxxxxxxxxxx>
- Date: Thu, 14 Mar 2013 23:09:15 +0000
I've got a conundrum dealing with Oracle Net and data guard under 10g, where
the standby service is registered with the primary listener and now the primary
listener is trying to loadbalance between the 2, which obviously doesn't work
under 10g.
Let's say the 2 databases are named "DHERRIA" (primary) and "DHERRIB"
(standby), both being 2-node RACs. "DHERRIB" is a physical standby. When I
check the listener on the primary I see the following:
LSNRCTL for Linux: Version 10.2.0.2.0 - Production on 14-MAR-2013 18:29:20
...
Services Summary...
Service "DHERRIA.us.dnb.com" has 2 instance(s).
Instance "dherri1", status READY, has 2 handler(s) for this service...
Instance "dherri2", status READY, has 1 handler(s) for this service...
Service "DHERRIA_DGB.us.dnb.com" has 2 instance(s).
Instance "dherri1", status READY, has 2 handler(s) for this service...
Instance "dherri2", status READY, has 1 handler(s) for this service...
Service "DHERRIA_DGMGRL.us.dnb.com" has 1 instance(s).
Instance "dherri1", status UNKNOWN, has 1 handler(s) for this service...
Service "DHERRIA_XPT.us.dnb.com" has 2 instance(s).
Instance "dherri1", status READY, has 2 handler(s) for this service...
Instance "dherri2", status READY, has 1 handler(s) for this service...
Service "DHERRIB_DGB.us.dnb.com" has 2 instance(s).
Instance "dherri1", status READY, has 1 handler(s) for this service...
Instance "dherri2", status READY, has 1 handler(s) for this service...
Service "DHERRIB_XPT.us.dnb.com" has 2 instance(s).
Instance "dherri1", status READY, has 1 handler(s) for this service...
Instance "dherri2", status READY, has 1 handler(s) for this service...
Service "DHERRIB.us.dnb.com" has 2 instance(s).
Instance "dherri1", status READY, has 1 handler(s) for this service...
Instance "dherri2", status READY, has 1 handler(s) for this service...
The 3 "DHERRIB*" sevices at the end are causing issues. Connections are
regularly getting routed to the standby and then failing because it's in mount
state. This even happens with RMAN operations on the primary where we're just
cleaning up archivelogs but some channels get routed to the standby and then
fail.
Is there any way to find out what's convincing the primary listener to pick up
these standby services? Is there any way to stop them? I realize there's some
communication between the primary/standby but in the other 4 DG environments I
don't have this situation. On top of it this started recently and I can't find
any changes that would cause this.
Dave Herring
DBA
Acxiom Corporation
EML dave.herring@xxxxxxxxxx
TEL +1 630.944.4762
3333 Finley, Downers Grove, IL 60515, U.S.A
www.acxiom.com
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