Forum Discussion

Nimbostratus

Mar 30, 2015

Priority Group Issue

Hi, I have a setup in which a pool contains 2 server. ServerA and serverB. Server A has priority 1 and its active only if it fails ServerB with priority 0 will come as active. we have a source b...

bhs_114985

Historic F5 Account

Mar 30, 2015

If server B is the only other server in the pool and only active when A is down why do you need persistence at all given 1 server is only ever active? If you still want to use persistence for some reason you could do an iRule like this from this post: selective-persistence-with-priority-grouping

when LB_SELECTED {
if { [LB::server priority] eq 0 } {
persist none }
else { persist source_addr 255.255.255.255 3600 }
}

Dinesh3888
Nimbostratus
Apr 02, 2015
Thanks bhs,i will get the Irule tested. Yes as per this scenario we don't need persistence, This is QA testing environment. i will get multiple servers added later to the group.