private static String hostPath(ApplicationId application, HostName hostname) {
        return hostsPath(application) + "/" + hostname.s();
    }
Handles all ZooKeeper data structures related to each active application, including HostInfo.
Cache (if any) is above and not visible here.

@author hakonhall
orchestrator/src/main/java/com/yahoo/vespa/orchestrator/status/HostInfosServiceImpl.java