The feature I love in TokuDB

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Playing with TokuDB updates I noticed in SHOW PROCESSLIST unsual for MySQL State.

(Do not look in stupid UPDATE query, it’s just for testing :) )

So looking in SHOW PROCESSLIST you can see progress of query execution.

I would want to see it in standard MySQL and InnoDB more than all these triggers and stored routines! Probably will implement this in XtraDB.

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Vadim Tkachenko

Vadim leads Percona's development group, which produces the Percona Server, Percona Server for MongoDB, Percona XtraDB Cluster and Percona XtraBackup. He is an expert in solid-state storage, and has helped many hardware and software providers succeed in the MySQL market.


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Insight for DBAs

  • I’ve always missed this kind of stuff from MySQL. Hope to see more of it coming to MySQL and other forks.

  • That is so awesome. Does it work for ALTER TABLE too?

    Can’t help but wonder how many times I’ve impatiently killed a MySQL server, assuming a long-running query was never going to finish, never to discover that it was only 30 seconds away from completing.

  • Gil, TokuDB shows progress for alter tables that add or drop indexes. It does not show progress for other alter tables (such as those that add a column).

    In summary, TokuDB shows progress in the following situations:
    1) updates, as shown above
    2) deletes, similar to above
    3) insert statements (for example, doing loads with “insert into foo select * from bar” will show progress)
    4) index creation

  • Nah… i would not exchange triggers for this… Still would be a nice thing to have.

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