Re: Apache Server Redundancy

 
I think it is much to do with failover box configuration issues. We use
WLS on linux loadbalancing in cluster with failover switch and 2ndary
node picks up application + session scopes fine. 

________________________________

From: A mailing list for discussion about Sun Microsystem's Java Servlet
API Technology. [mailto:[email protected]] On Behalf Of Wei
Cheng
Sent: Monday, December 20, 2004 5:53 PM
To: [email protected]
Subject: Re: Apache Server Redundancy



Hi David, 

Heartbeat and mon solution seems to offer failover protection up to
sessions, but it's not really mirroring my 2 servers. If my servlet
triggers a backend task i will still loose everything in the RAM. 





You can set up failover in which there are master and slave servers.
Session state is propagated to the processes within the same island,
which enables another process in the same island to pick up the request
from a given client if a failover occurs. You can get lots of
information on "apache failover" on Google. 
 
Hi Guys, 

I have this scenario where i need total and transparent redundancy for a
web server hardware. 
If the primary server fails, the secondary server should kick in
automatically and without loss of data (user sessions etc). 
Kinda like they way they mirror harddisks, except this time it's
mirroring the whole PC, ram inclusive. 

Any ideas ? 
Thanks in advance. 

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