OK, once again, after many hours of costly down time, we have restarted our Zope machine. Chris, could state your reasons for recommending against FreeBSD? I have had no trouble in over five years that I can directly attribute to FreeBSD, but I am open-minded. That said, I don't mean to reopen the 'best os' debate. This time I am pretty convinced that our problem had to do with changes due to the physical move of some equipment and reconfiguration at the ISP. Of immediate concern to me is whether I can do anything to prevent this happening again. From time to time, my Zope hangs, usually because of an attack by a bad robot requesting lots of complex pages and sending no-cache headers. Then I am able to restart Zope and all is well. For a while, when these attacks were frequent, I had a crontab to zopectl restart every hour. But this event was different and I would like to know if anyone thinks that something I am doing wrong could cause the Zope process to become 'unkillable' and require a reset of the machine. Has anyone else had this problem? I would have liked to perform some diagnostic on the machine in its stuck state, but neither I nor the ISP knew where to start. I can accept that, as Dieter said, there are times when the only choice is to switch off and on the box - which I can't do remotely - but wonder if I could have done more... --- Chris Withers <chris@simplistix.co.uk> wrote:
Ken Ara wrote:
One and a half days later, I am again unable to stop, restart or kill Zope. My ISP host is making changes on their network and I believe the problem is with them. I am in a FreeBSD jail, sharing the machine with a DNS server. It's 3am over there, and I wish I could do something while waiting for them to wake up. Then, we need to find out what is causing this problem.
Move hosters. FreeBSD for all its robustness is not something I'd recommend running Zope on...
Is there no alternative to physically restarting this machine? While we are stuck, is there anything I can do to diagnose the problem?
You may have more luck on a FreeBSD list...
Chris
-- Simplistix - Content Management, Zope & Python Consulting - http://www.simplistix.co.uk
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