spring-cloud-loadbalancer: refetching of instances does not work when repeated health checking is enabled

[rchigvintsev]

spring-cloud-loadbalancer-3.0.0

When health checking is enabled (property spring.cloud.loadbalancer.configurations is set to health-check) and it is repeated (property spring.cloud.loadbalancer.health-check.repeat-health-check is set to true) HealthCheckServiceInstanceListSupplier is not able to refetch service instances (property spring.cloud.loadbalancer.health-check.refetch-instances is set to true): instance providing Flux is executed only once.

Possible solution is to call .repeatWhen right after Flux.defer(delegate) in the constructor of HealthCheckServiceInstanceListSupplier.

[OlgaMaciaszek]

@rchigvintsev thanks for reporting this. Indeed, it's a bug.