public static SuspensionReasons downSince(ServiceInstance service, Instant instant, Duration downDuration) {
        return new SuspensionReasons().addReason(
                service.hostName(),
                service.descriptiveName() + " has been down since " +
                        // Round to whole second
                        Instant.ofEpochSecond(instant.getEpochSecond()).toString() +
                        " (" + downDuration.getSeconds() + " seconds)");
    }
Information worth logging when/if suspending a host.

@author hakon
orchestrator/src/main/java/com/yahoo/vespa/orchestrator/policy/SuspensionReasons.java