Datagroup Limitations

Depends on the box you're using and how efficient your iRule is...DGs can definitely handle thousands of entries, but if your redirect logic is that simple, you might be able to do it more efficiently.

Chris,

 

 

This is on a 6400, on a VIP that sees several million hits per day. This DG may be anywhere between several thousand up to around 250,000 lines. As far as the irule goes, I was planning to use something like this from the findclass examples from the irule wiki:

 

 

when HTTP_REQUEST {

 

set location [findclass [HTTP::uri] $::URIredirects " "]

 

if { $location ne "" }

 

HTTP::redirect $location

 

}

 

}

 

 

If there is a more efficient way please let me know. Thanks.

 

 

Joe

Are you on 9.x or 10.x?

 

 

You can probably avoid setting the variable by doing an if statement for the URI existing in the DG...definitely want to get rid of the $:: preceding the DG so you can take advantage of CMP.

Data Groups can handle many thousand entries comfortably. The overhead is really in how you're accessing them, and as Chris said this can be much more efficient in v10 and above. If you let us know what version you're running we can help you get an efficient query set up and you can do some capacity testing.

 

 

Colin

Colin and Chris,

 

 

Thanks for the help. I am running 10.0.1 on a 6400. Are the class commands in 10.x more efficient than the matchclass and findclass comaands in 9x? Or are you guys thinking of something else? This will be attached to a VIP that receives a few million hits per day so i definitely need it to be as efficient as possible. Also, I am trying to think of a way to minimize the frequency at which it will be run, rather than EVERY request to the VIP. But I just don't see a way to do that. Thanks again.

 

 

Joe