chantop queries the gRPC channelz service for statistics about open channels.
$ chantop -address localhost:8080
+---------------------------------------------------------------------------+-------+---------+-----------+--------+--------------------------+
| TARGET | STATE | STARTED | SUCCEEDED | FAILED | LAST CALL |
+---------------------------------------------------------------------------+-------+---------+-----------+--------+--------------------------+
| dns://service-name | READY | 247 | 247 | 0 | 2019-08-21T13:39:35.696Z |
| [[[some-service131.service.exampledomain.com./10.182.40.35:8080]/{}]] | READY | 16 | 16 | 0 | 2019-08-21T13:39:34.655Z |
| [[[some-service13200.service.exampledomain.com./10.182.152.123:8080]/{}]] | READY | 106 | 106 | 0 | 2019-08-21T13:39:35.696Z |
| [[[some-service113.service.exampledomain.com./10.182.37.22:8080]/{}]] | READY | 15 | 15 | 0 | 2019-08-21T13:39:33.613Z |
+---------------------------------------------------------------------------+-------+---------+-----------+--------+--------------------------+