Large Spikes on server CPU, Memory usage, PHP-FPM processes

  • Resolved brunocerq

    (@brunocerq)


    4 years, 11 months ago

    I have seen hundreds of blocked login attempts on live traffic, either for login.php or xmlrpc, then recently my website would go down for a minute or two, checking the server WHM I could see massive CPU and memory usage, and sometimes MariaDB would also go down, those numbers exceed what I have contracted with my VPS so websites would either go down or crumble.

    I talked to support to try an pinpoint the cause of this, and after some checks they told me that this was the issue:

    (Note:actual IP’s and domain obscured for security reasons)

    ”
    We have reviewed the reported issue in detail and it appears that there are a lot of PHP-FPM processes spawned from your website, which is the reason why you are getting larger CPU Load Values on your server.

    After checking the exact cause of the issue, it appears it is one of the Automated Tasks the WordFence plugin on this website is performing and the PHP Processes are actually spawned from the default WordPress Cron, specifically to execute the following task:

    xxx.xxx.xxx.xxx – – [16/Mar/2020:17:01:49 +0000] “POST /?wordfence_syncAttackData=1584378109.5985 HTTP/1.1” 200 – “https://xxxxxxxxx.com/?wordfence_syncAttackData=1584378109.5985” “WordPress/5.3.2; https://xxxxxxxxx.com”

    ”

    What can I do to prevent this?

    Thank you

Viewing 1 replies (of 1 total)
  • Plugin Support wfphil

    (@wfphil)

    Hi @brunocerq

    I would like to have a look at your Wordfence diagnostics report. Please go to the top of the “Diagnostics” tab on the Wordfence “Tools” page. There will be a “SEND REPORT BY EMAIL” button to send the diagnostics report. Enter wftest [at] wordfence [dot] com as the email and @brunocerq as the forum username please.

    Once you have emailed me the diagnostics report can you reply here to let me know that it has been sent. This is important in the unlikely event that your installation of WordPress is having an issue with sending mail.

Viewing 1 replies (of 1 total)
  • The topic ‘Large Spikes on server CPU, Memory usage, PHP-FPM processes’ is closed to new replies.