For more information regarding the security incident at F5, the actions we are taking to address it, and our ongoing efforts to protect our customers, click here.

Forum Discussion

Robert_47833's avatar
Robert_47833
Icon for Altostratus rankAltostratus
Jul 04, 2011

need help in forward uri to different pool via specific percentage

I have two pool: cjj1 ,cjj2     1:for uri in data group aaa, send 80% request to cjj1 and 20% to cjj2   2:if one client visit cjj1,all other requests from this client should be sent to cjj1,s...
application delivery
dev
devops
iRules
hoolio's avatar
hoolio
Icon for Cirrostratus rankCirrostratus
Jul 05, 2011
Hi Jucao,

 

 

You can create a string datagroup with the URIs and then use the class command (v10) or the matchclass command (v9) to do the lookup. You can use the rand function to do ratio load balancing between the pools. For requests sent to cjj pool, you can set a cookie and check for that cookie before selecting between the pools. Cookie insert persistence would not work for this scenario as default persistence ensures persistence within a single pool.

 

 

Here are a few related links:

 

 

http://devcentral.f5.com/wiki/default.aspx/iRules/class

 

http://devcentral.f5.com/wiki/default.aspx/iRules/matchclass

 

http://devcentral.f5.com/wiki/default.aspx/iRules/ratio_load_balancing_using_rand_function.html

 

http://devcentral.f5.com/wiki/default.aspx/iRules/http__cookie

 

 

Aaron