Re: ZODB and asyncio interaction

Jesus Cea <[email protected]> Fri, 22 Apr 2016 17:18:34 +0200

Newsgroups	gmane.comp.web.zope.zodb
Message-ID	<[email protected]>

On 22/04/16 15:24, Jason Madden wrote:
> Now greenlets are basically just extremely lightweight threads, and
> python threads release the GIL when they do socket IO, so the same
> principles apply to using a thread pool. And all of Jim's remarks
> remain true. I will say that we've had good results applying
> gevent+ZODB in an environment where large numbers of threads would
> make for different tradeoffs (large numbers of persistent WebSocket
> connections).

Yes, this is what I have using for ages, threads or thread-like
approaches. Clean and easy. People argue that threads are error prone,
but being disciplined with intercommunication is all it takes.

My problem, though, is that more and more ecosystem is moving to asyncio
model (I am quite quite skeptical about it, I rather prefer threads or
if they are too heavy for the application, greenlets) and transparent
persistence as provided by ZODB or DURUS are fundamentally incompatible
with asyncio, AFAIK.

I was wondering about if this conclusion is right or I am missing something.

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