Release-Engineering-Team wants to log slow queries for debugging and better monitor mysqls there (see parent task). Soon there will be more tools for monitoring mysqls thanks to performance schema (T99485), but using it now has certain blockers and it is not ready to be rolled in now.

I would like from netops evaluating the security concerns of making available the mysql port (3306) on "deployment-db1.deployment-prep.eqiad.wmflabs" and "deployment-db2.deployment-prep.eqiad.wmflabs" for access from tendril (db1011, on the production cluster) to integrate in the current database monitoring system, or proposing another architecture solution.

While, at first, beta cluster should be isolated from the the rest of the network, the same could be said about labsdb instances, and those are monitored using the same tool.