I'm hosting a wordpress blog and since 5th of June, I've been having a 100% CPU load (up from 5%), hosted on AWS.
Now, I've added many plugins, mainly the ones that do 20 mysql queries per page load per user. The problem is that I've added many scripts without realising the load, and I can't disable them.
Ideally, I would change the code, so that the CPU load is restored.
分享 Something I've seen cause this on wordpress, especially on sites with lots of plugins is wp-cron.php. It's a pseudo cron job that runs every request and as it does more and more, these jobs can queue on top of each other, never completing before the next round start and causing the CPU to get out of hand.
In wp-config.php, you can disable this by adding the following:
define('DISABLE_WP_CRON', true);
However this will prevent certain things that were relying on it from working. So you can add a cron to the server to run every 5 minutes:
*/5 * * * * wget -q -O - "http://example.com/wp-cron.php" > /dev/null 2>&1
If you're unfamiliar with cron, you can add tasks by running crontab -e in your server console.
分享
