[Setup] Frequent Restarts to maintain performance

[Max.Loeb at wellsfargo.com]

We have plone running on an Ubuntu box that sits in the corner of the office and has no other function or purpose than to run an internal plone site for a fairly small group of users. For the most part everything works fine, but every 3 or 4 days I get an email from one of the users informing that the site is down, and is producing 502 errors. I'll log-in to the Ubuntu box to see what's going on, and notice that the CPU is horrendously busy, up around 85-100%, with python eating up most of the juice. But no response from the plone site. I stop then start the instance and everything returns to normal until the next time.

I've verified that the "Debug Mode" flag is off for both the javascript and css management interfaces in the ZMI. I've also made sure that the "debug-mode" flag in zope.conf is set to "off".

Here are some of our configuration details:

Plone 3.2.2
CMF 2.1.2
Zope (Zope 2.10.7-final, python 2.4.5, linux2)
Python 2.4.5 (#1, Apr 14 2009, 12:35:28) [GCC 4.2.4 (Ubuntu 4.2.4-1ubuntu3)]
PIL 1.1.6

I don't know if this is important, but I'll also mention that our zope database file (Data.fs) is quite large at over 5 gigs, and that the cache-size setting in zope.conf is currently set to the default of 5000.

If there is any other information that would be helpful in diagnosing this, please let me know! Thanks so much, guys.

Max

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