Adding warm-up concept to load balancer

17 views

Skip to first unread message

Evaristo Camarero

unread,

May 5, 2025, 4:50:23 AMMay 5

to vert.x

Hi there,

I have been inspecting the new vertx 5 load-balancer. In my view could be improved with a warm-up feature similar to Istio warm-up .

When HTTP client is load-balancing against instances that require some warm-up to achieve peak performance could be nice that the warm-up can be done gradually. This could apply to many of the currently supported LoadBalancer strategies, including Least Connections, Power of Two and even Round Robin (that could evolution to guided round robin), it will NOT apply to stickiness load balancer. Basically, a configuration parameter could be needed in order to determine the warm up period (maybe others could apply also).

This feature could be specially interested when combined with K8s HPA when for instance Java backends that are known to require a warm-up period to achieve peak performance.

Regards,

Chevaris

Reply all

Reply to author

Forward

0 new messages