Plugin Removed but Pages Still cache for 1 Hour for Logged Out Users

  • Resolved apatheticnow2

    (@apatheticnow2)


    5 years ago

    We’ve been banging our heads against the wall here trying to track down an issue where pages are always cached for logged out users, and don’t clear when they are updated. We went so far as to fully remove the plugin per this guide, but are still seeing the issue:

    https://www.webnots.com/how-to-completely-delete-w3-total-cache-plugin/

    Anything else we can try to debug this or resolve? When we still had the plugin installed in debug mode, we would see the page generation timestamp set and clear every hour, and always cache for an hour as soon as a logged out user visited.

    We’d love to go back to using this plugin, but this issues has been a huge thorn in our sides.

    Is there a possible location where this setting would be stored/not cleared when the plugin is completely removed. Some database setting? Some lingering write/read to memcache? Anything?

    Thanks!

Viewing 5 replies - 1 through 5 (of 5 total)
  • Plugin Contributor Marko Vasiljevic

    (@vmarko)

    Hello @apatheticnow2

    I am sorry about the issue you are experiencing and I am happy to assist you with this.
    Can you please share your website URL so we can check this?
    Hev you deleted the /cache/ folder in wp-content? Do you have any other caching solution or maybe server-side caching?
    Thank you!

    Thread Starter apatheticnow2

    (@apatheticnow2)

    Thanks Marco – Is there somewhere I can send you our website address securely – rather not post to the forums at this time. It looks like the cache folder does still exist on the server, I can remove it this week. It only contains a single index.html and no sub directories so it doesn’t seem to be caching to disk there.

    We are running opcache in php 7.3 with the below configuration, and have disabled any other cache related plugins we had enabled, as well as scrubbed out themes of all manual calls to wp_cache.

    Zend OPcache
    Opcode Caching Up and Running
    Optimization Enabled
    SHM Cache Enabled
    File Cache Disabled
    Startup OK
    Shared memory model mmap
    Cache hits 117538450
    Cache misses 1274
    Used memory 54112624
    Free memory 73942928
    Wasted memory 6162176
    Interned Strings Used memory 6290024
    Interned Strings Free memory 1008
    Cached scripts 1262
    Cached keys 1704
    Max keys 7963
    OOM restarts 0
    Hash keys restarts 0
    Manual restarts 0
    Directive Local Value Master Value
    opcache.blacklist_filename
    opcache.consistency_checks 0 0
    opcache.dups_fix Off Off
    opcache.enable On On
    opcache.enable_cli Off Off
    opcache.enable_file_override Off Off
    opcache.error_log no value no value
    opcache.file_cache no value no value
    opcache.file_cache_consistency_checks 1 1
    opcache.file_cache_only 0 0
    opcache.file_update_protection 2 2
    opcache.force_restart_timeout 180 180
    opcache.huge_code_pages Off Off
    opcache.interned_strings_buffer 8 8
    opcache.lockfile_path /tmp /tmp
    opcache.log_verbosity_level 1 1
    opcache.max_accelerated_files 4000 4000
    opcache.max_file_size 0 0
    opcache.max_wasted_percentage 5 5
    opcache.memory_consumption 128 128
    opcache.opt_debug_level 0 0
    opcache.optimization_level 0x7FFEBFFF 0x7FFEBFFF
    opcache.preferred_memory_model no value no value
    opcache.protect_memory 0 0
    opcache.restrict_api no value no value
    opcache.revalidate_freq 2 2
    opcache.revalidate_path Off Off
    opcache.save_comments 1 1
    opcache.use_cwd On On
    opcache.validate_permission Off Off
    opcache.validate_root Off Off
    opcache.validate_timestamps On On

    Plugin Contributor Marko Vasiljevic

    (@vmarko)

    Hello @apatheticnow2
    Thank you for the information.
    YOu can drop us a note via the plugin itself in Performance>General settings, or since you’ve removed the plugin you can contact us via our website https://www.w3-edge.com/contact/
    Thank you!

    Thread Starter apatheticnow2

    (@apatheticnow2)

    Thanks Marco.

    So it seems we may have this resolved. After trying just about everything else under the sun, we restored to the tried and true “Turn it Off, Turn it on Again”. Bouncing the servers seems to have gotten whatever was stuck unstuck. We also disabled memcached as part of the restart, but I monitored memcached for a day and saw no cache set/gets so I’m not convinced that was the culprit.

    If this issue pops back up, I’ll open a new thread with any details I can find, but fingers crossed!

    Thread Starter apatheticnow2

    (@apatheticnow2)

    Hey Marco – I spoke too soon. Will send additional information directly

Viewing 5 replies - 1 through 5 (of 5 total)
  • The topic ‘Plugin Removed but Pages Still cache for 1 Hour for Logged Out Users’ is closed to new replies.