Forum Discussion
NimbostratusLoad balance is not even although using Leastcon + cmp disabled + no oneconnect
Hi everybody
I've config vs with source persist and have pool with 2 member
And I perform load test from 10 Machine (10 IP) with the same script.
The result is not good because statistic show that server-1 have more stat than server-2 (around 70%/30% sometimes 60%/40%)
I not sure why it's not even
we config standard vs with cmp disabled and LB with Least connection method. no oneconnect. using source persist
this should balance 50/50 or at least 45/55
Is there a theory that explain why this doesn't even? I think SOL10430 is not support this case.
Thank you very much
1 Reply
Daniel_EppersonEmployee
SOL10430 does describe this issue. You are using a "dynamic load balancing method" which is described as "Dynamic load balancing methods typically favor higher performing servers, and may result in uneven traffic distribution across pool members."
SOL10430: Causes of uneven traffic distribution across BIG-IP pool members
Persistence could add to the imbalance and if you are looking for even distribution you should consider turning it off. The default (static) LB method of Round Robin should give you more balanced and predictable results.
