Installation guide

Specifies whether requests for workers with SESSION IDs are routed back to the same worker.
The default is 0 (false). When set to 1 (true), load balancer persistence is enabled.
For example, if you specify worker.loadbalancer.sticky_session=0, each request is load
balanced between each node in the cluster. In other words, different requests for the same
session will go to different servers based on server load.
If worker.loadbalancer.sticky_session=1, each session is persisted (locked) to one
server until the session is terminated, providing that server is available.
82 Reference: workers.properties