retrySleepTime   = 20 * time.Millisecond
	nodeNameKeyIndex = "spec.nodeName"
	// podUpdateWorkerSizes assumes that in most cases pod will be handled by monitorNodeHealth pass.
	// Pod update workers will only handle lagging cache pods. 4 workers should be enough.
	podUpdateWorkerSize = 4
	// nodeUpdateWorkerSize defines the size of workers for node update or/and pod update.