> Is there a reason why multiprocessing could not be used?
>
> http://docs.python.org/library/multiprocessing.html#exchanging-objects-between-processes
>
Yes
http://twistedmatrix.com/trac/ticket/3901
___
Twisted-Python mailing list
Twisted-Python@tw
Peter Cai wrote:
> If you Google "sqlalchemy twisted", you can see my post is on the top:
>
> http://groups.google.com/group/sqlalchemy/browse_thread/thread/c802749c9d0dd6
>
> I've been busy for a long time so I didn't considered this question
> anymore. But occasionally, I got some new ideas to
If you Google "sqlalchemy twisted", you can see my post is on the top:
http://groups.google.com/group/sqlalchemy/browse_thread/thread/c802749c9d0dd6
I've been busy for a long time so I didn't considered this question
anymore. But occasionally, I got some new ideas today.
I was suggested to sand
2009/3/12 Peter Cai :
> Hi,
> I've read some mails in this list that recommend use sqlalchemy in separate
> processes.
> But if u use multiprocessing which provides only synchronous API, doesn't
> you have to use deferToThread also?
> Another way would be using "twisted.internet.protocol.ProcessPro
Hi,
I've read some mails in this list that recommend use sqlalchemy in separate
processes.
But if u use multiprocessing which provides only synchronous API, doesn't
you have to use deferToThread also?
Another way would be using "twisted.internet.protocol.ProcessProtocol",
which use pipes. But ca
I would recommend sandboxing Twisted code in another process when used
in conjunction with synchronous code (sqlalchemy, GUI, etc...). This
proved quite simple in my project, using the multiprocessing module
[1], and avoided me lots of headaches since.
This way I don't mix coding styles everywhere
I changed my code to this style, it works again.
This code would create a new session on each request and close it
immediately.
Hope this trick could save me!
#=
def require_session(f):
'''create and close session for each synchronous method'''
de
I'm not quite sure, but I think I'm pretty careful of sharing objects
between threads.
1st, I only cached as few as possible orm objects. I tried to detach them,
but I found that if I detach them, I can't access any of their fields any
more.
2nd, I create new orm objects based on client request,
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
On Mar 4, 2009, at 11:15 AM, Chris Foster wrote:
I think SQLAlchemy's ORM might work fine with Twisted. Check out http://foss.eepatents.com/sAsync/
. sAsync doesn't appear to be widely used, but I got the examples
to run with some minor change
I think SQLAlchemy's ORM might work fine with Twisted. Check out http://foss.eepatents.com/sAsync/
. sAsync doesn't appear to be widely used, but I got the examples
to run with some minor changes to the sqlite connection. I'm hoping
to try something useful in the next week or two.
On Mar
-BEGIN PGP SIGNED MESSAGE-
Hash: SHA1
On Mar 4, 2009, at 3:28 AM, Peter Cai wrote:
The code doesn't work. When I limit the thread numbers to 1
reactor.suggestThreadPoolSize(1)
Everything goes fine. Other wise the server would be blocked and must
be killed by "kill 9 ...".
The
Hi, all
I am using sqlalchemy in twisted in my project in the way below.
Defer any database operation so the twisted's main thread won't be
blocked.
And I use scoped_session, so that sessions won't have to be created
again and again.
==
class Database()
de
12 matches
Mail list logo
