Re: Clustering and browsing

Speaking of all this, I'm really wanting to get the sprayer solution going 
so that I can fully utilize my cluster to take my production server down 
for an extended period of time to do routine maintenance and full saves 
more often. Our Network Administrator is going to have to upgrade our core 
switch to make it happen. At least we won't have to buy more hardware to 
make this work. I'm glad to hear that this works well!

Chris Whisonant
Comporium
Senior Mid-Range Systems Administrator
IBM eServer Certified Systems Expert - iSeries Technical Solutions V5R2
IBM Certified System Administrator - Lotus Notes and Domino 6/6.5
803.326.7270 | 803.326.6142 fax
http://cwhisonant.blogspot.com/

domino400-bounces+chris.whisonant=comporium.com@xxxxxxxxxxxx wrote on 
09/21/2005 04:32:37 PM:

> 
> 
> 
> 
> No, an IP sprayer is not round robin DNS.  We could not use round robin 
in
> our network.  It is a switch type of device and you would have an IP
> associated with it.  You would then assign your web sight to that IP
> address.  The switch would be configured to balance/fail over to defined
> IPs behind it which will be your web servers.  You can even build
> redundancy with multiple sprayers.  I believe we did use a CISCO product
> and will pass the info when I talk to the networking folks.
> 
> You will have to tweak the settings it to your environment and 
application.
> We had an issue where it would failover or balance between pages of an 
app
> and ask the user to reauthenicate.  We fixed it by setting a "sticky"
> parameter.  It would take a response timeout from the original 
connection
> before it would fail over to a second server.
> 
> I was a solid solution in which the client was extremely happy.  It was
> only dismantled because they decided they no longer needed the 
redundancy
> for said application.
> 
> The best part of this solution, you had no clue which server you were
> connect to in the cluster.  The sprayer kept the integrity of the URL.
> 
> Eric
> 
> 
> 
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