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JamesS_40157's avatar
JamesS_40157
Icon for Nimbostratus rankNimbostratus
Sep 17, 2009

404 re-load balance in pool

Hi all,     Firstly apologies if this has already been covered - I've tried searching the forums and google but can't find exactly what I'm looking for. I'm also very new to irules so pleas...
application delivery
dev
devops
iRules
hoolio's avatar
hoolio
Icon for Cirrostratus rankCirrostratus
Sep 21, 2009
Actually, if the servers don't all have the same content and the load balancing is done based on round robin it's possible that a request could be re-load balanced to servers that don't have the content. I think the only way to guarantee the request would be tried against all the servers until one is found that serves the content would be to explicitly check each server using [active_members -list].

 

 

Another option for improving this might be to use RAM caching. Assuming you didn't cache 404 responses, you could reduce the number of requests to the pool by answering the requests from cache on LTM.

 

 

Aaron