Some fields in videobridge stats are not updated?

I have two JVB’s configured to publish their stats every 5 seconds. I noticed that some fields (e.g. total_packets_received, total_bytes_received, total_bytes_sent which are declared as private members in VideobridgeStatistics.java) were not always updated when there were some active conferences.

  • Does it mean that all private members are not supported and they should be ignored?
  • Can someone confirm if only those properties listed in https://github.com/jitsi/jitsi-videobridge/blob/master/doc/statistics.md (which was last updated in April 2017) are supported?
  • Can someone explain what the index 0 in conference_sizes is for? Does its value mean number of conferences with zero participants? If so, how long would those empty conferences be removed from JVB?