ratio(member) and persistence profile
BIG-IP LTM 800 (Ver. 11.5.3)
ratio(member) load balancing method I set for my pool doesn't seem to work as expected. I have 10 pool members. I set the ratio of one member to 5 and set ratio value 10 for remaining 9 members. connections aren't distributed evenly across the 9 node members though they have equal ratio value. One of the node member gets overloaded.
I found a similar case like mine on the internet.
http://h20564.www2.hpe.com/hpsc/doc/public/display?docId=mmr_sf-EN_US000005176
Looks like, the persistence profile I have set for my VS is causing trouble. But don't know why. I also don't have any clue as to why [Ignore persisted weight] option isn't working. The article says,
when a static load balancing method such as Round Robin is used along with a BIG-IP configuration object that affects load distribution, such as a OneConnect >profile or a persistence profile, traffic may not be evenly distributed across BIG-IP pool members as expected.
Well, I am using static load balancing method (ratio) and I have persistence profile set as well. I cannot disable/delete the persistence profile due to some technical constraints. I don't know what can be the solution in my case. I don't know why ratio load balancing can be “skewed” due to the existence of this persistence entry while round-robin works perfectly well with the same persistence profile.