Wordpress mysql cpu overload

  • Posted January 4, 2015


I have a droplet with 320GB & 32GB RAM My web is a wordpress with 2.000.000 pages/visited/month (300 average users in real time of Analytics) We use Total Cache (before WP Cache)

Three times/day we have mysql cpu overload IMG

Any explanation?

Sorry for my english


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I think I found the problem, it’s caused for plugin WPtouch Pro


My MySql is running into same droplet that my website

I dont have any other site or php scripts running.

Thank you for help

Why is your droplet so massive? you don’t need something that big for 300 concurrent visitors. I suggest you to start looking for holes in your droplet security, maybe is something else other than WP, do you have any other sites or php scripts running?

Yous MySQL is running on its own droplet? or into the same droplet as your website? Also can you let us know more about your droplet environment, webserver, php version, mysql version, etc? How is Total Cache configured?

In mysql-slow.log only appears this query many times:

SELECT count(*) as c FROM wp_posts WHERE ID IN (SELECT object_id FROM wp_term_relationships WHERE term_taxonomy_id = 542)

Any idea?

I’ve installed mytop.

Thank you very much.

With that kind of volume you may need to spend money on a decent MySQL query analyzer to figure out which queries from WP (and WP plugins, most likely) are eating up your CPU cycles. For a cheap and quick (but powerful) first look at your problem, install mytop to see what your mysql and threads are doing while your system is running.