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

Chris Withers chris at simplistix.co.uk
Thu Aug 31 03:17:18 EDT 2006


Christian Theune wrote:
> 
>>> b) it's more convenient for developers
>>
>> Why?
> 
> Early open port means: zopectl restart and reload in your browser 
> immediately without getting "Connection refused". Dieter already 
> mentioned this use case

I don't really buy that, but since it's configurable, it doesn't matter...

>>> c) it's a good thing if you have 'smart' load balancers
>>
>> How so?
> 
> Tres mentioned that to me: 'smart' load balancers can probe the server 
> and decide that the port is there, but the response time is too high and 
> won't include it in the pool again yet, but they can know that the port 
> is already open again.

Again, I can only see this as being a bad thing:

LB: Hmmm, this one's alive but absolutely creamed, I better not send it 
any requests for a long time.

D'oh

Chris

-- 
Simplistix - Content Management, Zope & Python Consulting
            - http://www.simplistix.co.uk



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