[Zope] zope_msg.log Message

[Brian Lloyd]

Hi guys -

Have you sent anything about this to support@digicool.com? If 
not, please do send a report that describes your environment 
and how to reproduce the problem. Stability problems are a 
high priority for us, and if we have an easily reproducable 
one here, I'd really like Michel to look into it if he hasn't
already...

Thanks!


Brian Lloyd        brian@digicool.com
Software Engineer  540.371.6909              
Digital Creations  http://www.digicool.com 




> -----Original Message-----
> From: chas [mailto:panda@skinnyhippo.com]
> Sent: Wednesday, March 22, 2000 8:44 PM
> To: Tony Rossignol; Kevin Littlejohn; zope@zope.org
> Subject: Re: [Zope] zope_msg.log Message
> 
> 
> 
> >> I can reproduce it instantly with a large enough page - 
> stop the request
> >> mid-way, the closing of the socket to the client while 
> Zope is serving the
> >> page up seems to be what causes it to go into it's loop, then die.
> >
> >Is this only when accessing via FastCGI or does happen when using
> >ZServer as well?
> 
> Just for the record, I dont' use FastCGI and have seen Zope
> die under the same circumstances; ie. by disconnecting the 
> browser mid-download of a (usually long) page. Fortunately, 
> that 'client' has been me via the administration screens, 
> but it does seem like a rather trivial DoS. 
> But it seems that this only happens with certain types of
> pages - I'm not sure which.
> 
> Unfortunately, I can't remember if this was when we were using 
> PCGI or Proxy-Pass, but it was definitely one of the two.
> 
> Hearing that others are now experiencing the same gives me
> hope: this could explain the crashes that we've been plagued
> with for months (though I fear any solution will come too late
> to prevent our switch to an alternative platform).
>  
> chas
> 
> ps. Weird thing : the most stable Zope installation I have
>     is on NT. It never, ever crashes, despite being the 
>     development machine (I wouldn't say that load is causing
>     my production server to die b/c it happens under low load
>     too). 
> 
> 
> 
> 
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