0

I have a site running Drupal 6. I was having performance problems so I turned on Drupal's built in "normal" level of caching performance -- which claims to not have any side effects.

Since I enabled this feature (about 3 days ago) I have users reporting that they are not seeing the latest content -- specifically the latest posts on the front page appear to be from several days ago. I believe this is happening both for logged in users, and anonymous users. I have not yet seen it happen as either a logged in user or an anonymous user.

What might be causing this and what steps can I take to troubleshoot it?

1

A couple of things to look at:

  1. Adjust the Minimum cache lifetime set at on admin/settings/performance to something better suited to your users.

  2. Make sure you have cron tasks in place to rebuild that cache on a regular interval. You can do it using Poormanscron in D6 (Built in core in D7).

  3. Disable any server-side performace/caching mechanisms, such as APC, memcache, varnish etc...

  4. Disable any extra Drupal caching mechanism, such as Boost.

  • Minimum cache lifetime was set to <none>. I checked the log to verify that cron is running and it is running every 15 minutes. Anything else that I can look at that might be causing this? – Shane Wealti Aug 5 '11 at 15:54
  • added a couple more – user842 Aug 5 '11 at 16:08
  • 1
    I had tried out Boost previously and forgot that boost had me add a bunch of stuff to .htaccess. I removed all that stuff now so I'll see if that fixes it. – Shane Wealti Aug 5 '11 at 16:19
  • I would almost guarantee that is your culprit, then. What's going to happen now though is that the users that visited your site while boost was installed will still see a cached version. It's because their browsers are told to hold onto that cache. They will have to refresh their browser cache or wait for the boost cache lifetime to expire. – user842 Aug 5 '11 at 16:29

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.