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A Session instance should be retrieved only when it's really needed, e. g. to make a few DB queries inside a single transaction or to pass the session to a private DB API method, etc. At the same time, many queries are simple and can be expressed by the means of auxiliary model_query() function. Blueprint: db-session-cleanup Change-Id: I2ddc0cda42a84fe600c04f4624db9c2933799bfc
The Choose Your Own Adventure README for Cinder
You have come across a storage service for an open cloud computing service. It has identified itself as "Cinder." It was abstracted from the Nova project.
To monitor it from a distance: follow @openstack on twitter.
To tame it for use in your own cloud: read http://docs.openstack.org
To study its anatomy: read http://cinder.openstack.org
To dissect it in detail: visit http://github.com/openstack/cinder
To taunt it with its weaknesses: use http://bugs.launchpad.net/cinder
To watch it: http://jenkins.openstack.org
To hack at it: read HACKING.rst