What are Galera Monitors (Drain, Send, ...)

[vgr...@gmail.com]

Hi everyone!

I wonder if we have documented what are monitors in Galera?

Example:

2024-04-24T17:04:00.630483+05:30 16 [Note] [MY-000000] [Galera] Maybe drain monitors from 1546933330 upto current CC event 1546933330 upto:1546933330
2024-04-24T17:04:00.630509+05:30 16 [Note] [MY-000000] [Galera] Drain monitors from 1546933330 up to 1546933330
2024-04-24T17:04:00.630546+05:30 16 [Note] [MY-000000] [Galera] ================================================
And:
2024-04-24T17:04:00.649038+05:30 16 [Note] [MY-000000] [Galera] Closing send monitor...
2024-04-24T17:04:00.649049+05:30 16 [Note] [MY-000000] [Galera] Closed send monitor.

I'm trying to make sense of the Galera logs.

Thanks,