[Solution discussion] May "fix" alert related problems

[oliverdding]

First of all, thanks for your great work!

Phenomenon

Recently, I encountered no_data status when using alert.

However, after some time of debugging, I found no bug in the code, and when locally debuging the plugin with local grafana and local clickhouse, alert worked so good. But when I use the local grafana with remote clickhouse, It alwasy show no_data, which is confusing :(

Cause

The backend code use HTTP to send query. And if you turn-on the basic auth and doesn't set a password for it(even though it doesn't have), you will receive 400 status code, haveing an empty body, printing no useful message to resolve. :(

Solution

If you are useing the user default without a password

please turn-off the baic auth!

or the better way:

create a viewer account in clickhouse with password, and use this role with grafana.

[Slach]

thanks a lot for share your experience