[Zope] Zserver stability problems
Wed, 23 May 2001 14:41:43 +0100
Hi again !
----- Original Message -----
From: "Sherwood Robinson" <firstname.lastname@example.org>
To: "nuno" <email@example.com>
Sent: Tuesday, May 22, 2001 7:18 PM
Subject: Re: [Zope] Zserver stability problems
> Try restarting Apache... does it come back that way?
I have tried restarting apache when this problem had occured, but
everything was still the same ! When i restarted zope all became fine !
I have read that this kind of problems can be related to the number of
I have checked that, i have the sugested 4 threads running !
I discovered in this mailling list that in some cases, zope hangs due to
the lack of requests !!! Isn't it strange ?
> Can you tell how much of your system resources are being use by Zope?
There are 6 python processes spending 26 M each. I have plenty of RAM : )
All resources are fine !
> Does it seem like the site gets slower the longer it is running?
Nope ! Actually it's speed is good !
> Are you running Debug.log on your Zope?
I am now, i'll keep an eye on that log !
> Are there any changes that you made to your Zope before this happened?
I altered the dtml-tree source code because i wanted to pass some arguments
in a recursive way.
I think it has nothing to do with hanging zope.
What do you thing of using fastcgi ? Could it hang zope ?
What is so strange is that zope is allright, and sudenly it gives me a blank
page with the zope listenner UP !
Thank you in advance,
> At 06:57 PM 5/22/2001 +0100, you wrote:
> >List-Archive: <http://lists.zope.org/pipermail/zope/>
> >Date: Tue, 22 May 2001 18:57:52 +0100
> >I'm running zope 2.3.0 (Red -Hat Linux) behind apache with mod_proxy
> >(ProxyPass) and fastcgi .
> >All requests are satisfied successfully by Zserver , however it seems
> >sometimes the zope listener
> >has to be restarted , which is not good !
> >What I have observed in particular, was that both apache an zope are up
> >working fine!
> >But suddenly, all the requests made through browser to the zope web site,
> >become in a blank page, the browser takes a long time to load and it
> >up the not found web page.
> >What seems to me so strange is, when this happen, both listeners are up
(netstat -l ).
> >Then I do a restart to the zope listener and all becomes fine again !
> >During last week this happened four times !
> >I have read the zope.org mailing list and saw that other persons have
> >problems with Zope Server, but I haven't found any suitable solutions
> >to this problem of Zserver stability.
> >Do you guys have any hints about the reasons of this behaviour?
> >What should it cause this unexpected problem ?
> >Thank you all
> >Best regards
> >Zope maillist - Zope@zope.org
> >** No cross posts or HTML encoding! **
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> > http://lists.zope.org/mailman/listinfo/zope-ann
> > http://lists.zope.org/mailman/listinfo/zope-dev )
> Sherwood Robinson
> The Free Lance-Star/Internet Department
> 616 Amelia St.
> Fredericksburg, VA 22401
> 540-374-5000 ext. 5657