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t-roy's avatar
t-roy
Icon for Nimbostratus rankNimbostratus
Nov 28, 2012

uneven load with Universal persist profile

I created a universal persistence profile called X-FORWARDED-FOR and am using a very simple irule to persist on the x-forwarded-for header:   ltm persistence universal X-FORWARDED-FOR {   ...
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t-roy's avatar
t-roy
Icon for Nimbostratus rankNimbostratus
Nov 28, 2012
well I think things are looking better now that I increased the of requests I threw at it. Had to make a change:

 

got error HTTP::header in rule X-FORWARDED-FOR) requires an associated FASTHTTP profile on the virtual server

 

changed rule to:

 

when HTTP_REQUEST {

 

set xff [HTTP::header "x-forwarded-for"]

 

persist uie [HTTP::header "x-forwarded-for"]

 

log local0. "[IP::client_addr]:[TCP::client_port]: XFF: $xff"

 

}

 

when SERVER_CONNECTED {

 

log local0. "[IP::client_addr]:[TCP::client_port]: persist record: [persist lookup uie $xff]"

 

log local0. "[IP::client_addr]:[TCP::client_port]: Connected: [IP::server_addr]:[TCP::server_port]"

 

}

 

 

so here are the results varying the IPs equally:

 

40290:18

 

40310:14

 

40320:13

 

40330:16

 

 

here ar the results if the XFFs are all from similar subnets:

 

40290:14

 

40310:15

 

40320:16

 

40330:14

 

 

Think this was just a case of me not testing thoroughly enough... This load distribution looks great to me. Thanks for the help.