I have recently installed PHPBB3.0.3 in my Dreamhost account. For some reason, from time to time I get a blank page instead of the expected forum page - this may happen in the front page, or even in some internal page (which is more frustrating btw - the post would seem to work fine, but then will not allow you to post, or something else). The page is completely blank (0-length); no errors are reported in it nor in the Apache logs.
In all cases, the errors can be corrected by clearing the cache, so I suspect that the problem lies there. I have also found that these errors tend to crop up whenever the server experiences an abnormally high load, but can't really tell for sure what triggers them. (Once they happen, however, they won't go away until the cache is cleared).
Disabling the cache is obviously not a good solution; as a workaround, I am thinking of havin a cronjob clear the cache automatically every few hours, but, again, that is not exactly optimal either.
Anybody has any clue? Any help would be much appreciated. Thanks!