… ENUM values. When it comes to changes that really require table to be rebuilt – adding/dropping columns or indexes, changing data… not virtual MMM IP as all virtual IPs are assigned to db1 at this stage. If you’re altering gigabyte size tables, this… and rebuild its tables. When replication on db1 has caught-up: 6.2 on monitor: set db1 on-line $ mmm_control @C1…

[...] huge queries to huge tables. On the MySQL performance blog, Aurimas Mikalauskas walks us through using MMM to ALTER huge tables. He writes, “When it comes to changes that really require table to be rebuilt – [...]