Hi folks,

I have a bit of a problem. I'm running 3.23.53 which I've compiled up from 
source (because the RPMs are not an option for me).

I have a process that does a fairly large select statement every 10 
minutes - up until a few days ago it was all find and dandy.

A few days ago I did a massive delete from one of the tables (getting rid 
of a lot of old records), and since then things have gone awry. The select 
statement seems to get "stuck" in the "COPY TO tmp table" stage, and 
starts to back up fairly heavily. Each of the cron-run processes gets to 
this "COPY TO TMP TABLE" stage and locks up, which consumes all available 
slots on the server and the whole things comes to a grinding halt.

I've already run an optimize table on the table, and that got rid of all 
the "empty space" freed up by the delete.

Any ideas why, after the massive delete, things have started slowing right 
down (or locking up entirely)?

THanks for help.

-Dan


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