I have created a second zone with 2 satellites.
Hosts where I set the new zone as “Cluster Zone” stay in pending state and “Check Source” is empty.
But “icinga2 object list --type=Host” on the satelites will display the hosts.
The log on the satellites:
[2019-08-26 17:34:17 +0200] information/ApiListener: New client connection for identity 'master.lan' from [10.0.0.5]:43432
[2019-08-26 17:34:17 +0200] information/ApiListener: Requesting new certificate for this Icinga instance from endpoint 'master.lan'.
[2019-08-26 17:34:17 +0200] information/ApiListener: Sending config updates for endpoint 'master.lan' in zone 'master'.
[2019-08-26 17:34:17 +0200] information/ApiListener: Finished sending config file updates for endpoint 'master.lan' in zone 'master'.
[2019-08-26 17:34:17 +0200] information/ApiListener: Syncing runtime objects to endpoint 'master.lan'.
[2019-08-26 17:34:17 +0200] information/ApiListener: Finished syncing runtime objects to endpoint 'master.lan'.
[2019-08-26 17:34:17 +0200] information/ApiListener: Finished sending runtime config updates for endpoint 'master.lan' in zone 'master'.
[2019-08-26 17:34:17 +0200] information/ApiListener: Sending replay log for endpoint 'master.lan' in zone 'master'.
[2019-08-26 17:34:17 +0200] information/ApiListener: Finished sending replay log for endpoint 'master.lan' in zone 'master'.
[2019-08-26 17:34:17 +0200] information/ApiListener: Finished syncing endpoint 'master.lan' in zone 'master'.
[2019-08-26 17:34:17 +0200] information/ApiListener: Applying config update from endpoint 'master.lan' of zone 'master'.
[2019-08-26 17:34:17 +0200] information/ApiListener: Updating configuration file: /var/lib/icinga2/api/zones/director-global//.timestamp
[2019-08-26 17:34:17 +0200] information/ApiListener: Applying configuration file update for path '/var/lib/icinga2/api/zones/director-global' (17 Bytes). Received timestamp '2019-08-26 17:34:17 +0200' (1566833657.300291), Current timestamp '2019-08-26 17:30:24 +0200' (1566833424.234067).
[2019-08-26 17:34:17 +0200] information/ApiListener: Updating configuration file: /var/lib/icinga2/api/zones/management//.timestamp
[2019-08-26 17:34:17 +0200] information/ApiListener: Applying configuration file update for path '/var/lib/icinga2/api/zones/management' (17 Bytes). Received timestamp '2019-08-26 17:34:17 +0200' (1566833657.302284), Current timestamp '2019-08-26 17:30:24 +0200' (1566833424.236123).
[2019-08-26 17:34:33 +0200] information/RemoteCheckQueue: items: 0, rate: 0/s (6/min 30/5min 90/15min);
[2019-08-26 17:34:43 +0200] information/RemoteCheckQueue: items: 0, rate: 0/s (6/min 30/5min 90/15min);
[2019-08-26 17:34:53 +0200] information/RemoteCheckQueue: items: 0, rate: 0/s (18/min 90/5min 270/15min);