What does IPCheck actually do? To fully check a zope is working we normally just run a perl or python script using LWP or urllib to get various pages. As a further check we run this from a remote box. For me this is as close to checking that DNS, db connections, Zope etc are all working that I can get. The only way I can see a problem is if IPCheck does something wierd. -- Andy McKay ----- Original Message ----- From: <george.lively@ccpace.com> To: <Zope@zope.org> Sent: Tuesday, April 03, 2001 8:16 AM Subject: [Zope] Zope hangs from time to time
I have Zope 2.2.2 on Windows NT with ProxyPass to a Linux box where the Apache web server is. We use the Zope Connector to connect to Interbase DB also sitting on NT. From time to time (a few times a day), Zope hangs. It doesn't die, but it will hang for a few minutes at which time no one can connect to the site. Then after about 5-10 minutes, it will restore itself, and everything will be ok. If we try to connect directly to the Apache web server (running off 8080), we connect to Apache very quickly. When we look at the NT box during this time of trouble, mem usage and cpu time look normal.
But here's a twist that perhaps is interesting, perhaps not. Could be a coincidence. But anyhow, we have been running IPCheck for a little over a week - having that little application hit our server every 60 seconds to see if it's still responding. When the server does not respond, a little alarm goes off. The log from ipcheck shows that some of the non-responsive times are at times when no one is hitting the server (except IPCheck). When I've been around to catch the alarm recently, I've immediately logged into /manage on Zope. Each time I've done this, Zope stops hanging. And it stops hanging immediately. Any thoughts? Is there anything I can do to ensure that I don't have to log into /manage to stop the hanging?
Thanks.
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