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   Kris (Backup Account) (isotopp@chaos.social)'s status on Friday, 02-Aug-2024 21:04:20 JST Kris (Backup Account)

   in reply to

   We have 2, then 3 data centers, and we are running a few hundred instances of MySQL in a about a dozen of replication chains in 2011.

   It begins to hurt, quite a bit.

   EDIT: There is also the move to InnoDB, which was met with a lot of scepticism:

   - Uses more disk space
   - Couldn't easily detach and attache tablespaces
   - Broke merge tables, which we used a LOT in dw.

   but

   20.000 writes/s instead of 7000 writes/s.