[Zope-dev] Re: Timing the opening of network ports

Andreas Jung lists at zopyx.com
Wed Aug 30 02:58:49 EDT 2006



--On 29. August 2006 18:37:45 +0100 Chris Withers <chris at simplistix.co.uk> 
wrote:

> Tres Seaver wrote:
>>> Unlike you, I prefer when the browser waits until Zope
>>> has come up over me  having to reload manually until it
>>> finally is ready...
>>
>> The branch Andreas just merged leaves the "fast-bind" option on by
>> default.
>
> Cool, although I can't really see the use ;-)
>

The usecase is pretty simple:  you have a loadbalancer and remove  one 
backend Zope. The LB detects the removal and stops forwarding request.
When the client comes back (means Zope opens the ports early) the LB
will start forwarding to the client although it might take a while until 
the Zope instance is really up and ready to serve request. So by opening
the ports late we are able to reduce the latency and avoid pending
requests.

-aj
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