rvbehren_322318
Jun 08, 2017Nimbostratus
Pool persistence almost lost after a pool member has been marked down
We have configured a pool with 3 nodes with cookie persistence and standard HTTP service setup. After a node (N1) has been marked down by a health monitor we see that the following requests for a persisted session will be shifted (load balanced) to the two remaining nodes (N1 -> N2, N1 -> N3). So far, so good.
But we also see that some (not all) requests to the two "healthy nodes" lost their persistence (N2 -> N3, N3 -> N2).
We already tried different settings to "Action On Service Down", but this didn't change the behavior.
Any ideas / hints?
Unfortunately we are using BIG-IP 10.2.4 Build 817.0 Hotfix HF7, update is planned in a couple of months.