From HFML-FELIX Wiki
Grafana is an open platform for analytics and monitoring. We run an instance of this software on felix-control. You can use it to visualize data from the MySQL database on isolator, for instance. We use it e.g. to plot radiation data.
Troubleshooting
[edit | edit source]- If no data shown in Grafana Fluke radiation meter. Restart Proces "archiver" in Monit Service Manager on felix-Control:2812
Tips
[edit | edit source]- If ladder-style graphs show the constant levels at the wrong position, make sure that the timestamps are in ascending order!
Tweaks
[edit | edit source]- When installing grafana on Linux, add this in the [mysqld] section of `/etc/mysql/mariadb.conf.d/50-server.cnf` to fix the timezone issue between Grafana and MySQLdb, then restart the mysql service. ref
init_connect="SET SESSION time_zone = IF( CURRENT_USER() = 'grafana@localhost', '+00:00', @@session.time_zone);"
- Since v7.0 the default minimum refresh rate was increased, to revert to allow 1s, change in grafana.ini:
min_refresh_interval = 1s
