clustering, loadbalancing, & licensing

[D0ubleStakked]

Hi,
I am about to purchase an owned license of SupportSuite, and I want to do some capacity planning for the next 12-18 months.
One item that I still need to address is clustering & loadbalancing.

So I have a few questions:

1.) can SupportSuite be clustered? If so, are there any recommended designs or admin documentation?
(I know I can cluster the webserver & the DB server...so I'm mostly curious about how the "cron" implementation would work in a cluster)
2.) if SupportSuite is licensed per domain/server, and I want to setup a 3-server cluster, should I expect that I need 3 owned licenses?
3.) does Kayako offer any performance or load metrics to use when considering server setup & possible clustering?

-Brian

[craigbrass]

1. You could easily have two high powered servers: One for the database and one for the web server. I don't think I know of anyone who has done MySQL replication or similar with Kayako but I am sure it would be possible.

2. Kayako's products are licenced by the URL you are accessing it from so assuming your staff and customers all access through support.exampledomain.com for example, you will only need the one licence.

3. Kayako do not support this sort of setup as far as I am aware so there is no performance enhancing code.

[ebelew]

What OS are you running for the servers?

Eddy

[D0ubleStakked]

I'll be running Windows 2003 server (at least until Microsoft fixes their kerberos bugs in Exchange 2007)

For WebServer, I'm comfortable running either Apache 2.2+ or IIS6.

[D0ubleStakked]

I'm comfortable setting up a simple webserver cluster so that multiple servers can share the load and have failover coverage. I'm also good with separating web & db on different servers and doing the MySql replication.

The biggest concern I have in clusterin gis how the "cron" implementation will work.
If all my web servers run "cron" independently, then I've got multiple servers all doing the same processing concurrently and I'll get data duplication.

-Brian

[ebelew]

Cron is independent to the OS. It will do what you tell it.

EB

[jaigupta]

Cron can be setup on any one server or it may be divided e.g. if you want to run cron every 10 min's then setup cron to run every 20 min on each server with 10 min difference.

For php applications like kayako I would highly recommend Linux + Apache.

How much load comes on your server?

May be you may like to just seprate webserver, mailserver, dbserver. Depend's upon what actually is loading your server, is it db or is it mail server or both.