Issues with Redis Object Cache

  • rikq

    (@rikq)


    1 year, 2 months ago

    Hi there. It appears that your plugins (Perfect Images, Media Cleaner, and Database Cleaner) do not work well together with the Redis Object Cache plugin.

    We recently installed Redis Object Cache, and since then, we have been noticing a bunch of issues associated with Perfect Images and Media Cleaner. In fact, we had to deactivate Perfect Images, because it only showed a white screen on the settings page. No actual settings at all. Reactivating it did not fix the problem.

    After noticing some slowness and investigating using Query Monitor, we saw lots of delete_option() calls. We also noticed this before we deactivated perfect images. And as I write this, all of our settings on the Media Cleaner Pro settings page have been wiped out.

    From Query Monitor, here’s how the call looks like:

    delete_option()
    wp-includes/option.php:737
    Meow_WPMC_Core->check_options()
    wp-content/plugins/media-cleaner-pro/classes/core.php:1307
    Meow_WPMC_Core->get_all_options()
    wp-content/plugins/media-cleaner-pro/classes/core.php:1272
    Meow_WPMC_Core->get_option()
    wp-content/plugins/media-cleaner-pro/classes/core.php:1266
    Meow_WPMC_Core->plugins_loaded()
    wp-content/plugins/media-cleaner-pro/classes/core.php:39
    do_action('plugins_loaded')
    wp-includes/plugin.php:517

    The page is: wp-admin/admin.php?page=wpmc_settings&nekoTab=advanced

    In the actual Query tab, there’s something like this:

    SELECT autoload
    FROM wp_options
    WHERE option_name = 'wpmc_content'

    This is repeated many times with different values for option_name.

    We are also pro users of your Database Cleaner plugin. Never had an issue updating in the past. But today (after setting up Redis Object Cache yesterday), we tried updating Database Cleaner Pro and got the following error:

    An error occurred while updating Database Cleaner: Clean, Optimize & Repair (Pro): Download failed. cURL error 56: OpenSSL SSL_read: error:0A000126:SSL routines::unexpected eof while reading, errno 0

    Other unrelated plugins have updated well.

    This is only partly a support request. We want you to be aware of these issues as well. We don’t want to go opening multiple support requests across the different plugins.

    If you have a quick solution based on the details provided please let us know.

Viewing 2 replies - 1 through 2 (of 2 total)
  • Thread Starter rikq

    (@rikq)

    1 year, 2 months ago

    Update: The delete_option() calls are actually happening on any admin page (like the main admin dashboard). Not just on the Media Cleaner settings page. This is an ongoing problem, and we may have to temporarily deactivate Media Cleaner as well (until we know what’s going on) before this ends up deleting useful content.

    Using Media Cleaner, on our WordPress admin page, I filtered queries by caller where caller is delete_option() and there where 88 such calls! All with a different option name.

    Plugin Author Jordy Meow

    (@tigroumeow)

    1 year, 2 months ago

    Hi,

    I am going to investigate; but don’t worry, it’s not going to erase your own options. I moved from many options to only one option to handle every settings in Media Cleaner, so it might be linked to the cleaning that always happens (but normally, it shouldn’t).

Viewing 2 replies - 1 through 2 (of 2 total)
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