CPU Usage 100% Due to File ‘Hangup’

  • Resolved webmistressofthedark

    (@webmistressofthedark)


    1 year, 4 months ago

    I have had a problem where despite only 9 visitors to a site, my CPU usage went to 100%. Upon investigation, my host said that the file at wp-admin/load-styles.php was the one that was hung up and causing the traffic jam. This happened on about 13 other sites that are set up the same way. Latest WP, latest DIVI theme, PHP 8.1, and only two plugins — LiteSpeed which was not installed by me and GROW social sharing icons.

    I keep only one extra theme in the admin and clean up all old saved pages in the DIVI library.

    The host cleared the ‘requests’ from wp-admin/load-styles.php and the site was restored, but I wonder how a single page can get hung up like that to the point it taxes the CPU usage? The other sites eventually cleared up on their own.

    I’m baffled.

Viewing 4 replies - 1 through 4 (of 4 total)
  • Moderator Steven Stern (sterndata)

    (@sterndata)

    Volunteer Forum Moderator

    We’ve seen reports of bots that are using that PHP file to try to do denial of service attack by requesting a large number of files through one access. They seem to come and go.

    Thread Starter webmistressofthedark

    (@webmistressofthedark)

    I asked them if it was bots and DDOS and they said no. Usually they can block the IPs. I will let them know about this! Thank you so much.

    Thread Starter webmistressofthedark

    (@webmistressofthedark)

    How can this be stopped? It’s happening again and I can’t get in to edit my sites. The sites load just fine, just can’t load the edit page.

    Thread Starter webmistressofthedark

    (@webmistressofthedark)

    I have reverted to PHP 8.0

    I have fully optimized the site’s files

    That seems to have helped some, but I still have a problem from time to time.

    The sites load lightning fast, but then I can’t get in to edit. When I check, it says 1 entry (me) but 350% of 400% which is insane.

    I was told to install Hearbeat but I have no idea how to use that.

    Also do not understand about cron jobs.

    Please help…

Viewing 4 replies - 1 through 4 (of 4 total)
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