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Editorial Team
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Asked: 2026-05-26T05:26:28+00:00

I have a relatively big MySQL InnoDB table (compressed), and I sometimes need to

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I have a relatively big MySQL InnoDB table (compressed), and I sometimes need to alter its schema (increasing column size or adding a field).

It takes around 1 hour for a 500 MB table with millions of rows, but the server doesn’t seem to be very busy (CPU @5%, not much RAM used, and 2.5 MB/s as I/O).

The table is not used in production so there are no concurrent requests at the same time. There is only a primary index (on the first 5 columns) and one foreign key constraint.

Do you have any suggestion on how to speed-up the table alteration process?

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1 Answer

  1. Editorial Team

    Changing storage engine (to newer generation engines like TokuDB) seems the way to go, until InnoDB is “fixed”.

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