Re: ZODB and Web2py

Hi Jim,

What is the difference between ClientStorage and RelStorage?

I need a multithread-friendly (Gevent) client-server database backend to 
serve

concurrent requests.

Thank you,

Etienne


Le 2017-03-11 à 10:03, Jim Fulton a écrit :
>
>
> On Sat, Mar 11, 2017 at 9:03 AM, Toby Shepard <[email protected] 
> <mailto:[email protected]>> wrote:
>
>
>
>>     To put a fine point on it, you'd be using a ZODB database in any
>>     case. The question is whether you use a client-server /storage/
>>     like ZEO, RelStorage or NEO, or use FileStorage.
>>
>>     You can use FileStorage if you have a *single process*, but
>>     that's usually not a good idea because then you wouldn't be able
>>     to make a read-write connection to the database from outside your
>>     web application without stopping it.  You also wouldn't be able
>>     to increase the number of application processes for scale or
>>     higher availability.
>>
>     I wasn't sure whether web2py ran as a single process.  Does it
>     fork to handle concurrent requests?
>
>
> I wouldn't know. :)
>
>     I was just looking for the easiest path.  It sounds like I need to
>     have a client-server storage.   I've just
>     begun testing ZODB with FileStorage.  Would I just drop in a
>     client-server capable one in its place,
>     or is there more to it?
>
>
> Aside from running the server, and having a different storage config, 
> that's all there is to it.
>
>     Which would be a good choice for this application, running behind
>     web2py
>     as a web application database?
>
>
> That depends on your needs.  Do you care what server you run?
>
> Have you looked at Newt DB? http://newtdb.org
>
> With Newt, you're using RelStorage with Postgres, but you a secondary 
> JSON representation that you can see, index, and search in Postgres 
> and you get an API that takes PostgreSQL search criteria and returns 
> database objects.
>
> Jim
>
> -- 
> Jim Fulton
> http://jimfulton.info
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-- 
Etienne Robillard
[email protected]
http://www.isotopesoftware.ca/

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