Hi Swapna,
Ø Clustered installation doesn’t have separate licenses for installation
in cluster environment. You would just have your individual LS licenses, and
each LS pointing to the same Database instance, and additional configs for
them to operate in clustered mode. You have some additional info on how the
clustered mode operates in Live Server Users_Administration document apart
from LS installation document.
Ø Regarding your question about both LS instances on different IP having a
common IP for external world, this is achieved through load balancer
operating in front of the clustered LS instances.
In standard Architecture, you would have the following in that order from
End user to backend Datastore.
1) Load Balancer
2) 2 or more Web Servers behind the load balancer configured, and
connecting with backend Live Servers (using mod_proxy_ajp or mod_jk in case
of Apache)
3) 2 or more Live Servers in clustered mode
4) Common database instance for clustered LS instances
So in your case, you need a load balancer in front of your
clustered LS instances.
Ø I wasn’t able to understand your question about database servers. As you
would be pointing to the same Database instance, I am not sure why you were
having two database servers in this context.
Thanks,
Prasanth
_____
Prasanth Nittala - Oshyn, Inc. - Powering Innovation ™
Direct 213.814.4163 | Cell 213.399.5828 | Fax 213.612.0291 | Web
www.oshyn.com
From: [email protected] [mailto:[email protected]] On Behalf Of Swapna
Sent: Monday, September 21, 2009 4:32 AM
To: Prasanth Nittala
Subject: [reddot] LiveServer Cluster Operation
Hi,
Is there any document on LiveServer Installation in Cluster Environment.
We have 2 independent licences for LiveServer. I installed liveserver(MySQL
DB) on one system. Then while setting up LiveServer on the second system i
selected the config.xml,dbsettings.ksf,dbsettings.ksf.properties and
dbsettings.ksf.asn from the first installation. Then it asked me to restart
tomcat.
Once i restarted the tomcat, i could get the login page. Now my doubt is, i
Can't understand how cluster works here. Generally cluster systems have
their own individual IP but to the outside world they have a single IP. We
make calls to this single IP address and depending on the availability one
of them responds. But here i cant find the single IP info.
Other thing being Databases are shared in cluster but, herei could see
RDEUSER and RDEMASTER databases on both the database servers.The second one
is using the db logins of the first system.
Is there any documentation for Cluster Operation.Atleast from OT site. Do we
need seperate licences for installation in Cluster Environment. Anyhelp
would be thankful.
Regards,
Swapna.
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