Alex <mysqlstudent@gmail.com> writes:

Okay, that makes sense, and is in line with what I was also thinking. This is like 30 concurrent requests, then nothing for a minute or two, then another 30 concurrent requests.

30 concurrent requests at 1 or 2 minute intervals? This seems weird, as I would expect it to be more or less randomly distributed over that interval. Does this happen at the top of each minute?

If what you observe is true, the only situation I can think of that would cause this is a bunch of POP3 fetch clients running as a cron job synchronized to a minute grid (i.e seconds=0).

Joseph Tam <jtam.home@gmail.com>