Checking if Roadrunner is Configured Properly

For the agents to connect properly, Roadrunner must listen on the proper management and data ports. By default, these are respectively 55777 and 55888.

Check Roadrunner Logs

When roadrunner starts it will display what is received a configuration and should display that it’s listening on the 55777 and 55888 ports.

$ sudo docker logs <Roadrunner Container ID>
[...]
14:17:49.921 connect ▶ INFO 00e Successfully connected to DataHub (meta connection) on host: myinstance.analytics.accedian.io in zone: myzone for tenant: 0471ffb8-c000-41ac-9ed8-3da45c696e36.
14:17:49.921 getConfig ▶ INFO 00f Requesting config from DH on host: myinstance.analytics.accedian.io in zone: myzone for tenant: 0471ffb8-c000-41ac-9ed8-3da45c696e36
[...]
14:18:52.101 processMetaMsg ▶ INFO 03d Received config from DH on host: myinstance.analytics.accedian.io in zone: myzone
[...]
14:17:52.951 func1 ▶ INFO 026 server OpenMetricsPushGateway listening on 0.0.0.0:55888 with TLS enabled
[...]
14:17:52.952 func1 ▶ INFO 033 server AgentProxy listening on 0.0.0.0:55777 with TLS enabled

• Line 3: Roadrunner connections to Analytics backend.

• Line 4: Roadrunner request its configuration.

• Line 6: Roadrunner received its configuration.

• Line 8: Roadrunner is listening on port 55888.

• Line 10: Roadrunner is listening on port 55777.

  ---

  Note: If the logs only show requests for configuration, that is an indication that Roadrunner is not receiving its configuration.

  ---

Using netstats (in container)

The linux tool netstats can be used to determine if Roadrunner is listening on the 55777 and 55888 ports. This needs to be done within the container.

$ sudo docker exec -it <roadrunner container id> netstat -nplt
Active Internet connections (only servers)
Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
tcp        0      0 127.0.0.1:10001         0.0.0.0:*               LISTEN      1/adh-roadrunner
tcp        0      0 :::55888                :::*                    LISTEN      1/adh-roadrunner
tcp        0      0 :::55777                :::*                    LISTEN      1/adh-roadrunner

Checking Exposed Ports

For the agents to connect the proper ports must be exposed by docker and a proper port forwarding configured.

Using the command “docker ps” the exposed ports are displayed under the “PORTS” column.

In the example below we can see that the ports are exported for IPv4 and IPv6.

$ docker ps
CONTAINER ID   IMAGE                                       COMMAND                  CREATED             STATUS                       PORTS                                                                                                    NAMES
32b9a88ded4e   gcr.io/npav-172917/adh-roadrunner:0.372.0   "/docker-entrypoint.…"   17 minutes ago      Up 17 minutes                0.0.0.0:55777->55777/tcp, :::55777->55777/tcp, 0.0.0.0:55888->55888/tcp, :::55888->55888/tcp   aod-connector-for-myinstance.analytics.accedian.io-myzone