Problem with Drupal 6 built in "normal" caching - users getting data several days old on front page 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?
A couple of things to look at:


Adjust the Minimum cache lifetime set at on admin/settings/performance to something better suited to your users.
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).
Disable any server-side performace/caching mechanisms, such as APC, memcache, varnish etc...
Disable any extra Drupal caching mechanism, such as Boost.