I plan to start posting regularly to the forums on nodalpoint updates and server problems. I welcome comments and suggestions on theses issues.
Recently the nodalpoint server has been experiencing periodic high loads. I have yet to track down the exact cause of this, whether there are just too many hits for the server to cope with at certain times or if my Apache-PHP-MySQL configs need more optimizing.
Stupidly I have had the Drupal caching system turned off, which might have something to do with the high loads. I recall the reason for switching of caching in the first place was due to some bugginess in the display of the front page with caching on (recent comments not updating etc.). This is odd as the errors were reported by registered users, cached pages are only displayed for anonymous users according to the Drupal documentation.
I'm also getting cache SQL errors in the Drupal logs which I'm looking into.
Caching
I've noticed that the front page doesn't seem to update on reload sometimes (e.g. logged in users and comment times don't change). It seems to update when I log in though and otherwise functions normally.
I think that behaviour is
I think that behaviour is correct. Anonymous users should see the cached page (i.e. comment times won't update) and if you are logged in the page should refresh (i.e. the cache is only one for anonymous users.
I haven't noticed the load go up recently, maybe it was just all those wiki enthusiasts...