// before terminating request and returning Timeout error with retry
	// after suggestion.
	blockTimeout = 3 * time.Second

	// resourceVersionTooHighRetrySeconds is the seconds before a operation should be retried by the client
	// after receiving a 'too high resource version' error.
	resourceVersionTooHighRetrySeconds = 1

	// eventFreshDuration is time duration of events we want to keep.