Having trouble with your LibreTime installation? We’ve got you covered!
Since LibreTime is effectively a web site running on a LAPP stack, individual components of the system can be started, stopped, restarted or checked in the server console using the systemctl command:
sudo systemctl start|stop|restart|status libretime-liquidsoap sudo systemctl start|stop|restart|status libretime-playout sudo systemctl start|stop|restart|status libretime-celery sudo systemctl start|stop|restart|status libretime-analyzer sudo systemctl start|stop|restart|status apache2 sudo systemctl start|stop|restart|status rabbitmq-server
For example, to restart the Airtime playout engine, you could enter the command:
sudo systemctl restart libretime-playout
Airtime stores log files under the directory path /var/log/airtime/ which can be useful for diagnosing the cause of any problems. Copies of these log files may be requested by LibreTime developers while they are providing technical support for your Airtime deployment.
If you need to test your computer’s soundcard, you can use
speaker-test, a tone generator for ALSA.
This does not come installed with LibreTime but can be installed with
sudo apt install speaker-test.
speaker-test [-D] [-f]
Where: -D device name -f frequency of test tone
The airtime-test-stream command enables you to send a test tone to a local or remote streaming media server. Press Ctrl+C on your keyboard to stop the tone being streamed.
airtime-test-stream [-v] [-o icecast | shoutcast ] [-H hostname] [-P port] [-u username] [-p password] [-m mount] [-h] Where: -v verbose mode -o stream server type (default: icecast) -H hostname (default: localhost) -P port (default: 8000) -u user (default: source) -p password (default: hackme) -m mount (default: test) -h show help menu
If the Airtime logs indicate failures to connect to the RabbitMQ server, such as:
2013-10-31 08:21:11,255 ERROR - [pypomessagehandler.py : main() : line 99] - Error connecting to RabbitMQ Server. Trying again in few seconds 2013-10-31 08:21:11,255 ERROR - \[pypomessagehandler.py : main() : line 99\] - Error connecting to RabbitMQ Server. Trying again in few seconds - See more at: http://forum.sourcefabric.org/discussion/16050/\#sthash.W8OJrNFm.dpuf
but the RabbitMQ server is running normally, this error might be due to a change in the server’s hostname since Airtime installation. Directory names under /var/lib/rabbitmq/mnesia/ indicate that RabbitMQ’s database files are organised according to the hostname of the server, for example:
where the hostname is airtime.example.com. If the hostname has changed, it may be necessary to reconfigure RabbitMQ manually, as follows:
Delete the files in /var/lib/rabbitmq/mnesia/
sudo rm -r /var/lib/rabbitmq/mnesia/*
sudo systemctl restart rabbitmq-server
Enter the following commands to set up authentication and grant permissions. The rabbitmqctl add_user command requires the RabbitMQ password from the /etc/airtime/airtime.conf file as an argument. The rabbitmqctl set_permissions command should be entered on one line, with the list of Airtime services repeated three times:
rabbitmqctl add_vhost /airtime rabbitmqctl add_user airtime XXXXXXXXXXXXXXXXXXXX rabbitmqctl set_permissions -p /airtime airtime “airtime-pypo|pypo-fetch|airtime-analyzer|media-monitor” “airtime-pypo|pypo-fetch|airtime-analyzer|media-monitor” ”airtime-pypo|pypo-fetch|airtime-analyzer|media-monitor”