[Zope] Re: ZEO ClientDisconnected error

[Cyrille Bonnet]

Hi Tres,

thanks for your response: it is very helpful. The posting you refer to 
is particularly helpful. Thanks for digging it up for me!

Cheers,

Cyrille

Tres Seaver wrote:
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> Cyrille Bonnet wrote:
> 
>>Hi there,
>>
>>One of my clients is using Plone on Solaris 9. We have set up one ZEO
>>client on a Solaris machine and a ZEO server on another Solaris machine
>>(for testing purposes only at this stage).
>>
>>Performance is great but every morning, the first hit to the Plone site
>>returns a ClientDisconnected error (see full error log below). It looks
>>like the socket on the server gets corrupted or something.
>>
>>When the error occurs, the server is non-responsive for a while
>>(anywhere between 10 sec and 2 minutes) and then eventually the server
>>responds.
>>
>>Has anybody seen that before? Is it Zope related or should I look in
>>other directions?
>>
>>Researching Zope on Solaris, I read somewhere (can't remember where now)
>>that Solaris doesn't like long-running processes too much (well, the
>>Zope process, for instance). Could it be the culprit here?
>>
>>Any advise or pointer welcome.
> 
> 
> I would check for a "rude" firewall between your appserver and the
> storage server:  one which is closing sockets it sees as "idle" for too
> long.  Dieter Maurer has a product which works around such scenarios:
> 
>   http://mail.zope.org/pipermail/zodb-dev/2005-June/008967.html
> 
> 
> Tres.
> - --
> ===================================================================
> Tres Seaver          +1 202-558-7113          tseaver at palladion.com
> Palladion Software   "Excellence by Design"    http://palladion.com
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