> Am 27.01.2015 um 16:51 schrieb Jay Pipes <jaypipes at gmail.com>: > […snip...] > a) I agree with Sean and Matt here that this is an optional dependency and belongs in the deployment documentation and configuration management manifests > > b) The Glance API image cache can use xattr if SQLite is not desired [1], and Glance does *not* list xattr as a dependency in requirements.txt. Swift also has a dependency on python-xattr [2]. So, this particular Python library is not an unknown by any means. Do you happen to know how Glance handles this if the dep. is not handled in requirements.txt? > > c) Remember that even if you install python-xattr, that still doesn't mean it will automatically work. You still need to enable a filesystem that supports atime (i.e. noatime must not be set in fstab for the filesystem) [3]. Just an FYI. In our case the Quobyte file system does support that metadata and we use it to verify that a QB volume was mounted. Best regards Silvan > > Best, > -jay > > [1] https://github.com/openstack/glance/blob/master/glance/image_cache/drivers/xattr.py > [2] https://github.com/openstack/swift/blob/master/requirements.txt#L11 > [3] https://github.com/openstack/glance/blob/master/glance/image_cache/drivers/xattr.py#L23-L24 > > __________________________________________________________________________ > OpenStack Development Mailing List (not for usage questions) > Unsubscribe: OpenStack-dev-request at lists.openstack.org?subject:unsubscribe > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev -- -- *Quobyte* GmbH Boyenstr. 41 - 10115 Berlin-Mitte - Germany +49-30-814 591 800 - www.quobyte.com Amtsgericht Berlin-Charlottenburg, HRB 149012B management board: Dr. Felix Hupfeld, Dr. Björn Kolbeck, Dr. Jan Stender