WP-Optimize Cache Preload causes high server load

  • perfectword7

    (@perfectword7)


    2 days, 5 hours ago

    Howdy,

    My site is rather large, and when I run the preload (which takes quite a while), as it gets toward the end of the preload, it causes high loads on my VPS.

    My server logs show the same URL being accessed for caching up to 9 times in the same second. This seems like the obvious suspect causing the server load.

    Can you suggest what may be causing the preload to behave this way, and what I can do to stop it?

    Thanks!

Viewing 6 replies - 1 through 6 (of 6 total)
  • Plugin Support jbgupdraft

    (@jbgupdraft)

    2 days, 5 hours ago

    Hi,

    Could you share some of your server log using a tool such as pastebin.com? I’d like to look through the preloader running to see if I can identify what could be causing this.

    We also do have some filters available to limit how quickly the preloader runs between URLs and to adjust the memory threshold that could help reduce the server load spikes on your site, but I’d like to take a look through the log first to see if I can identify the behaviour.

    Thanks!

    Thread Starter perfectword7

    (@perfectword7)

    2 days, 4 hours ago

    Thanks!

    Log Pt. 1
    https://pastebin.com/kvx5ic5K
    gm1EUjtLN8

    Log Pt. 2
    https://pastebin.com/SLNnFFqJ
    nrhMe4apFw

    Plugin Support jbgupdraft

    (@jbgupdraft)

    7 hours, 58 minutes ago

    Hi,

    Thanks so much for sending that over. Could you enable the additional logging in WP-Optimize > Settings > Logging settings and set the option to “Log events into the PHP error log”? I’d like to compare the preloader entries with the server logs that were sent over to see if we’re logging that the URL is accessed multiple times.

    Thanks!

    Thread Starter perfectword7

    (@perfectword7)

    7 hours, 48 minutes ago

    Done. What steps do I take after I enable logging?

    Plugin Support jbgupdraft

    (@jbgupdraft)

    7 hours, 45 minutes ago

    Hi,

    Thanks so much for that. With the logging enabled can you run the preloader and send me a copy of the PHP error log?

    An alternative is to enable the WordPress Debug log by editing the wp-config.php file and this should write a file in wp-content called debug.log. Let me know if you want me to send the steps to enable the WordPress Debug Log.

    Thanks!

    Thread Starter perfectword7

    (@perfectword7)

    5 hours, 8 minutes ago

    It doesn’t appear to be writing anything to my site’s error_log. I also tried logging to email. No output.

    I did notice that the preload page said that it found 1041 URLs in the sitemap, but when it was done, there were 1955 files in the cache.

    Thanks.

Viewing 6 replies - 1 through 6 (of 6 total)

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