Percona PMM Query Analytics newspaper "No query classes for selected instance and time range" error
The complete error message is as follows:
There is no data for the selected MySQL instance, time range or search query.
QAN API error: "qh.Profile: No query classes for selected instance and time range. Please check whether your MySQL settings match the recommended."
Check the / var/log/qan-api.log file in docker container for more information.
Solution:
PMM uses slow log as the query source, and slow logs need to be enabled:
Slow_query_log=ON
Long_query_time=0
