Need mirroring software/program

[brainchasm]

Anyone know of a program, linux or win32, that can:

a) log into a forum

b) mirror either the entire forum or a specific category

c) do it better than wget and HTTrack

Any help would be appreciated.


brain

 

[MorfiusX]

First off, what are you trying to accomplish? I would assume you are trying to achieve some sort of fault tolerance? If so, what is it worth to you? For fault tolerance, there is a balancing act between cost and uptime. The higher your uptime goals, the more it will cost you to achieve them. There is also a balance between bandwidth and distance between the nodes. The closer then two systems are, the cheaper bandwidth costs. But the further the systems are, the less likely a natural disaster can take down your system.

Based on the little info above, a forum has two pieces really: A web front end and a database back end. The front is easily mirrored as the code for the pages rarely changes. This is usually as easy as setting up two separate web servers. The back end however has a few options depending on your goals. You could create a database cluster, you could use replication built into MySQL/MS SQL/etc, you could run two queries against the databases, etc.

Next you have too decide if you want to just mirror, load balance, or a combination of both. There are many products available that will load balance traffic among a group of servers. I have used devices from F5, but the get pretty expensive.