[ZWeb] Re: [Zope] Catatonic Zope Server

[Mark Pratt]

Hello Jake,

I want to thank you for trying to benchmark/compare your experiences 
with running Zope Servers.
And I must say that I find Andreas' comments two your last two queries 
very unhelpful.

 From what I know of Jamkit they are anything but Zope beginners either 
and it would be nice to figure out
what is causing both "catatonic" and crashing Zope servers.

Cheers,

Mark

On Dec 17, 2004, at 2:14 PM, Jake wrote:

> First of all I am currently running 2.7b3, Plone 2.0R3 and CMF 1.4.2.
>
> This happens to me now and again. Basically, Zope just hangs and 
> nothing
> from /bin/runzope to /zopectl will work to get it back up. I need to 
> kill
> the threads (that are left, sometime it looks like one thread dies) and
> restart Zope. I would say over the last year, this has happened maybe 3
> times.
>
> I do use Photo and Photo Album which I have found have had some 
> conflicts
> in the past.
>
> Jake
> -- 
> http://www.ZopeZone.com
>
>
> Malcolm Cleaton said:
>> I'm having some trouble with a Zope server becoming unresponsive.
>>
>> The server runs quite a busy site, and sometimes has memory problems. 
>> We
>> have been restarting zeo, and then zope, every few hours (with some 
>> five
>> minutes difference inbetween).
>>
>> Recently, the disk containing Data.fs became full, and we had some 
>> strange
>> conflict errors, where the error message appeared to suggest that our
>> transaction had caused a conflict because it had started many hours 
>> ago,
>> which of course it hadn't.
>>
>> We truncated the Data.fs some and the problems went away. A few days
>> later, we had a new problem. Right after flipping cache files, Zope 
>> began
>> to log a flood of errors such as:
>>
>> (our cache file).zec invalidate: oid mismatch: expected 0x0edcd6 read
>> '(data)'
>>
>> The data looked like object pickles, including strings from our
>> application.
>>
>> We deleted all the cache files, and deleted the Data.fs.index, and
>> restarted. We haven't seen any obvious data errors since.
>>
>> That may be related to the current issue, or it may be a red herring. 
>> But
>> now, the server has gone into a catatonic state just after a restart, 
>> at
>> least twice. In this state, nothing appears in the Z2 or event logs, 
>> and
>> requests for pages appear to mostly time out (although apache, for
>> whatever reason, served up empty responses with a 200 ok code for some
>> Zope requests during this time).
>>
>> The server sits in this dead state until it is restarted. The last 
>> time it
>> happened, it would not restart correctly until zeo had also been
>> restarted.
>>
>> I'm baffled. Can anybody shed any light on what may be happening?
>>
>> Thanks,
>> Malcolm
>>
>> --
>>
>>     [] j a m k i t
>>       web solutions for charities
>>
>>          malcolm cleaton
>> T:  020 7549 0520
>> F:  020 7490 1152
>> M:  07986 563852
>> W: www.jamkit.com
>>
>>
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>
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