@Override
            public void setHostState(HostName hostName, HostStatus status) {
                if (status == HostStatus.NO_REMARKS) {
                    applicationHostInfo(reference).remove(hostName);
                } else {
                    applicationHostInfo(reference).put(hostName, HostInfo.createSuspended(status, Instant.EPOCH));
                }
            }
In-memory implementation of StatusService.

@author hakon
orchestrator/src/test/java/com/yahoo/vespa/orchestrator/status/InMemoryStatusService.java