On Sep 19, 2014, at 8:43 PM, Iain Duncan <iainduncanli...@gmail.com> wrote:

> So can anyone tell me what exactly happens with NullPool, I'm not clear from 
> the docs. Does that mean a fresh connection will be made on a new hit, and 
> we'll never get the "gone away", but at the expense of slower connections?

with the important caveat that your app returns connections to the pool when 
its idle.   If you check out a connection and just hold onto it somewhere for 
hours (which you shouldn't), you can still get that error.


> 
> Is is terribly slower?
> 
> thanks!
> Iain
> 
> 
> On Fri, Sep 19, 2014 at 2:27 PM, Iain Duncan <iainduncanli...@gmail.com> 
> wrote:
> Thanks guys!
> 
> Iain
> 
> On Fri, Sep 19, 2014 at 12:41 PM, Jonathan Vanasco <jvana...@gmail.com> wrote:
> Just to add to jeff's response, I had a similar situation with Postgres under 
> a twisted app a while back.
> 
> Someone else on the twisted list was using Mysql + Twisted + Sqlalchemy and 
> pointed to some pessimistic reconnect code they used in buildbot :
> 
>        http://twistedmatrix.com/pipermail/twisted-python/2014-June/028410.html
> 
> 
> 
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