I run the website www.rulethenet.com/rule.jsp
.> As you can see it has current news that is updated every 15 minutes by some parsing and other programs. The traffic to the site has been growing and yesterday it reached about 30,000. The page size is 80 K. (I am mentioning this in case the volume of traffic could be the cause of the problem.) The server is a Dell Pentium single processor 1.5 GHz with about 256 MB RAM.
Yesterday I noticed a problem a few times. For example at 3:20 pm the page that was being served was the one edited just before 2:30 pm and with "Last Updated: Fri Mar 13, 2:30 pm ET...". I went to the directory where the rule.jsp file is stored and checked it. In that file the text was "Last Updated: Fri Mar 13, 3:30 pm ET...". So Apache was not serving this file but rather an older version (which actually no longer existed in the directory for rule.jsp). After sometime Apache started catching up, and about after an hour it was showing the latest files.
Thanks in advance for solutions.