Hello, I have the same (?) problem with a site running on our Zope server (Zope 2.3.0) -- The site just hangs from time to time (the Zope processes are still running, and not taking any more memory than usual, but ZServer is not responding to GET requests.) A stop/start cures the problem (until it happens again.) This site is a popular site, and gets spidered a lot, so I wonder if it is a thread consumption problem. I have written a Python script to monitor a Zope installation (authored it for just this problem) that is available from my Zope.org page, http://www.zope.org/Members/willdawg . I'd love to know why this occurs, if someone figures it out... Thanks, Will Dennis P-Wave, Inc.
Note that there is probably not one single cause (or solution) for all of the reported "Zope hangs on me" issues. The requestprofiler module (part of the most recent Zope CVS checkout in the /utilities directory) is a reasonable place to start to try to track down a pattern to the hangs. I've put it up separately at http://www.zope.org/Members/mcdonc/HowTos/DEBUG-LOG/requestprofiler.py so people can make use of it before 2.4 comes out. Make sure to read the documentation it has available via the --help switch. You need to turn on "big M" logging (via the -M switch in z2.py) to have something which the script can parse and profile. - C ----- Original Message ----- From: "Will Dennis" <willd@p-wave.com> To: <zope@zope.org> Sent: Friday, May 11, 2001 2:30 PM Subject: [Zope] ZServer Must Be Continually Re-Started
Hello,
I have the same (?) problem with a site running on our Zope server (Zope 2.3.0) -- The site just hangs from time to time (the Zope processes are still running, and not taking any more memory than usual, but ZServer is not responding to GET requests.) A stop/start cures the problem (until it happens again.) This site is a popular site, and gets spidered a lot, so I wonder if it is a thread consumption problem. I have written a Python script to monitor a Zope installation (authored it for just this problem) that is available from my Zope.org page, http://www.zope.org/Members/willdawg .
I'd love to know why this occurs, if someone figures it out...
Thanks,
Will Dennis P-Wave, Inc.
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Chris McDonough wrote:
Note that there is probably not one single cause (or solution) for all of the reported "Zope hangs on me" issues.
Just an observation, but reports of this type of hangage seem to have risen significantly since Zope 2.3.0, I know we hardly ever had a hang before then and now one of our servers is up and down far too frequently... cheers, Chris
I certainly hope we can determine whether or not there is a common cause. With the reports we've been able to get so far, I can't seem to establish a pattern... On Sun, 13 May 2001 20:25:40 +0100 Chris Withers <chrisw@nipltd.com> wrote:
Chris McDonough wrote:
Note that there is probably not one single cause (or
solution) for all of
the reported "Zope hangs on me" issues.
Just an observation, but reports of this type of hangage seem to have risen significantly since Zope 2.3.0, I know we hardly ever had a hang before then and now one of our servers is up and down far too frequently...
cheers,
Chris
participants (3)
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Chris McDonough -
Chris Withers -
Will Dennis