Cheers,
I'm trying to migrate my project, so i can use some of the benefits
Eventlet offers (yum, concurrency).
Right now I've had little success following the (former) approach of the
Nova Project [1].
Is this still the (an) way to handle this? tryed several pool variants
from the docs, but in the end the first querys dies within
a traceback like this:
File
"/usr/local/lib/python2.6/dist-packages/sqlalchemy/dialects/postgresql/psycopg2.py",
line 329, in on_connect
extensions.register_type(extensions.UNICODE, conn)
TypeError: argument 2 must be a connection, cursor or None
eventlet db_pool seems to spawn a connection but psycopg2 is able to
handle it. not sure how to debug this.
Somebody using eventlet with sqlalchemy in current versions?
[1]:
http://bazaar.launchpad.net/~rackspace-titan/nova/sqlalchemy-eventlet/view/head:/nova/db/sqlalchemy/session.py
http://docs.sqlalchemy.org/en/latest/core/pooling.html
http://eventlet.net/doc/modules/db_pool.html
http://initd.org/psycopg/docs/advanced.html#support-to-coroutine-libraries
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