first of all sorry by my inglish,
i am using grafana to monitoring two electric devices of one of my clients.
Grafana is 5.1V running on ubuntu 17.04 and the datasource is Mysql
this is the query
__timeGroup(FECHA,'10m',0) as time_sec, VOLTAJE12 "VOLTAJE12", VOLTAJE23 "VOLTAJE23", VOLTAJE31 "VOLTAJE31" FROM analizadorredes WHERE __timeFilter(FECHA) AND ID = 1
ORDER BY FECHA asc
i amd using $__timeGroup(FECHA,‘10m’,0), to be able to see the disconnection of devices like 0V in the Y axis.
What do I expect?
i expect that the dashboard look always like:
What do I get?
sometimes i get a dashboard that looks like:
in the last picture, you can see that auto-axis does not work properly, this is because, the $__timeGroup macro add a data-point, to the start of the data set.