In response to an email offlist, I forgot to specify that these are
InnoDB tables.

On Mon, Mar 3, 2008 at 2:53 PM, Waynn Lue <[EMAIL PROTECTED]> wrote:
> I've been noticing strange load spikes on our mysql machine, throwing
>  back the dreaded "max connections error", even though the value is set
>  to 500.  I'm wondering if this is related to an hourly script I run
>  that does a few somewhat-db intensive queries.  The script runs a
>  query that groups by Users to find out who's been the most active
>  across our system.  Would that cause other connections to the database
>  to back up?  I just saw it happen, so I killed the query and
>  everything returned to normal pretty quickly, but I'm somewhat
>  confused, because it looked like connections to other databases were
>  being backed up as well.  One other weird thing, if I'm doing a
>  complex SELECT from a table, and something else is INSERTing into that
>  same table, the INSERT is taking awhile, even though there shouldn't
>  be any contention since I'm not doing SELECT FOR UPDATE.
>
>  Any ideas?
>

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