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Re: ALTER TABLE ENIGNE=InnoDB performance


Hi Marko,

I don't think that's an option

- It would interfere with the normal operations on the master, currently we use a "FLUSH TABLES WITH READ LOCK" with an LVM snapshot to get a consistent copy of the database while the system is up and running. Changing the PARTITIONs to TABLEs would mean having to stop the running system.

- I haven't checked this in a while (> a year), but the last time we looked at swapping a TABLE back to a PARTITION, it took hours, I think it's because it validates that the rows in the TABLE belong in the PARTITION according to the partitioning scheme. MySQL has the "WITHOUT VALIDATION" option to overcome this



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