Re: Load balancing with RAC according to our own proportions

  • From: Alexandre Gorbatchev <agorbatchev@xxxxxxxxxxx>
  • To: oracle-l@xxxxxxxxxxxxx
  • Date: Tue, 27 Jul 2004 07:48:44 +0200

Ok. As I thought we will probably end up with our own mechanism.
We are not ready for 10g yet and it might not come to our production for 
another year or two.
Regards,
Alex



From:   Murali Vallath <murali_vallath@xxxxxxxxx>@freelists.org  on 
26-07-2004 20:37 MST
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Subject:
Re: Load balancing with RAC according to our own proportions





I don't think I have seen this done out of the box in Oracle 9i, unless 
you want to do this  by writing some code yourself.
 
In Oracle 10g, this is possible using the distributed workload management 
feature and the service framework features.
 
 
Murali Vallath.
Alexandre Gorbatchev <agorbatchev@xxxxxxxxxxx> wrote:
Hi all,
Could you please share your experience with client load balancing with RAC 

in 9i?
Oracle can do it on its own during connection time but this wouldn't suit 
our need. We want to define proportions in which connections should be 
distributed over different nodes. I suppose it's not possible with 
standard Oracle Net architecture. The applications are connecting over OCI 

if it makes any difference. We are using dedicated sessions. Sessions are 
persistent and normally stay connected for days if not months. I think we 
can initiate reconnect if we need to re-balance but I still don't see any 
option of how to balance connections automatically by Oracle.
For now, I see only application specific approach - the app would have to 
choose which of the instances it should connect to. Please correct me if 
I'm wrong. Any ideas would be appreciated.

Regards,
Alex

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Murali Vallath

Author : Oracle Real Application Clusters (digital press)

Join the Oracle RAC-SIG at www.oracleracsig.org  - its FREE!

 





 
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