Re: RAC nodes list?
- From: Dan Norris <dannorris@xxxxxxxxxxxxx>
- To: andrew.kerber@xxxxxxxxx, Jay.Caviness@xxxxxxxxxxxx
- Date: Fri, 3 Aug 2007 05:53:11 -0700 (PDT)
Hi Andrew,
I don't think it is possible to get the information you want from the database
since Oracle doesn't know the hostnames for instances that aren't running. With
RAC (I'm not talking about Clusterware), there are no database configurations
that you would use to describe the list of hosts configured for a particular
database. That configuration lies outside the database in the clusterware
configuration (hence the OS commands offered in this thread).
Put directly: The database doesn't know how many instances there are *supposed*
to be nor on which hosts those instances may be started until it actually
happens. All the database knows is that it only has X threads of redo, so only
X instances can be started, but it doesn't care (or know) where those instances
will be started (or if they'll ever be started).
So, if you want to find out which hosts are configured to run an instance of
the ORCL database, you'll have to query the clusterware via the srvctl or crs_*
commands.
Dan
----- Original Message ----
From: Andrew Kerber <andrew.kerber@xxxxxxxxx>
To: Jay.Caviness@xxxxxxxxxxxx
Cc: oracle-l <oracle-l@xxxxxxxxxxxxx>
Sent: Friday, August 3, 2007 7:20:05 AM
Subject: Re: RAC nodes list?
gv$instance only shows those nodes that are up. I would like to
see both those are up and those that are supposed to be up.
On 8/2/07, Caviness, Jay A <Jay.Caviness@xxxxxxxxxxxx
> wrote:
You can look at gv$instance which will give you the host
name for each instance currently on your cluster
Thanks,
Jay
Jay
Caviness
Horizon Clinicals – Systems Engineering
Sr. Systems Engineer - Oracle
DBA McKesson Information Solutions
jay.caviness@xxxxxxxxxxxx
285 Century
Place
303-926-2444
Louisville, CO 80027
I gotta fever...and the only prescription for it is ... MORE
COWBELL!
From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx] On Behalf Of Tim
Gorman
Sent: Thursday, August 02, 2007 3:25 PM
To:
oracle-l
Subject: Re: RAC nodes list?
Query V$THREAD. It may not have all the information you want,
but the rows are always there even if the instances aren't up...
Tim Gorman
consultant - Evergreen Database Technologies, Inc.
P.O. Box 1802, Evergreen CO 80437-1802
website =
http://www.evdbt.com
email = tim@xxxxxxxxx
mobile = +1-303-885-4526
fax = +1-303-484-3608
Kerber, Andrew W. wrote:
Srvctl works within
sqlplus?
I want to get the
information w/o going to the os. Someone suggested v$thread earlier, and that
will get me the instance names, but I would also like to get the server names
if possible.
-----Original
Message-----
From: oracle-l-bounce@xxxxxxxxxxxxx
[mailto:oracle-l-bounce@xxxxxxxxxxxxx]
On Behalf Of David
Sharples
Sent: Thursday,
August 02, 2007 1:31 PM
To:
andrew.kerber@xxxxxxxxx
Cc: oracle-l
Subject: Re: RAC nodes
list?
use the srvctl
command
On 02/08/07,
Andrew Kerber <andrew.kerber@xxxxxxxxx>
wrote:
Does anyone know what table or view will
show me what nodes and instances are supposed to be in a RAC Cluster, oracle
10.2.0.3? gv$instance will give me the
instances that are currently up, but I would like to be able to query to find
out what instances and nodes are supposed to be in the cluster.
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Andrew W. Kerber
'If at first you dont succeed, dont take up skydiving.'
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