Openwhisk Invoker turning unhealthy

[gabbar023]

I have extended invokers replica count to 3 & deployed it as a statefulset on OSP Platform.
Openwhisk-controller logs shows invoker turning unhealthy while invoking action.
When i check for resource utilization, its utilising less than half of the allocated resources. So i think resource is not an issue, but still all the invokers keep turning unhealthy/down/unresponsive for few seconds when i run the jmeter test.
I cant find why its turning unhealthy repeatedly & it spins up another instance of test-health-action pod.
Also, is there any possible way to loadbalance the invocations between the invokers externally?

[rabbah]

Also, is there any possible way to loadbalance the invocations between the invokers externally?
No, it's done by the controller.

Did you check if the invokers are failing/restarting?
Which container factory are you using?