Update the OpenStack doc with more options, recommendations and best
practices.
Update the Keystone configuration for the Kilo release with Rados
Gateway.
Signed-off-by: Sébastien Han <seb@redhat.com>
To actually get the benefit of writeback caching, qemu must be
aware of it so it pases flushes to rbd. Since hammer rbd caching
is enabled by default, so add the nova option to make qemu aware
of it.
Signed-off-by: Josh Durgin <jdurgin@redhat.com>
Fix the typo in doc/rbd/rados-rbd-cmds.rst, also add explanation/example
when creating an image without specifying pool.
Signed-off-by: Frank Yu <flyxiaoyu@gmail.com>
Glance has not completely moved to 'store' yet so we need to configure
the store in the DEFAULT section as well.
Fixes: #10478
Signed-off-by: Sébastien Han <sebastien.han@enovance.com>
Juno is now using a section for configuring the stores, so let's use it.
Put spaces between flag and value for clarity and readibility.
Signed-off-by: Sébastien Han <sebastien.han@enovance.com>
The "fqdn" (fully-qualified domain name) was misspelled in a couple
places as fgdn". Use the correct spelling.
Signed-off-by: Ken Dreyer <kdreyer@redhat.com>
Enabling the RBD cache improves sequential IOs and the socket helps a
lot while troubleshooting. These 2 items are considered as best
practice for OpenStack deployments with Ceph.
Signed-off-by: Sébastien Han <sebastien.han@enovance.com>
This commit introduces some updates for the OpenStack Juno release. New
flags have been added, many trailing spaces were removed and a new
recommendation for Glance cache management has been added too.
Signed-off-by: Sébastien Han <sebastien.han@enovance.com>
Some updates from Icehouse, best practice configurations and
explanations.
Signed-off-by: Sébastien Han <sebastien.han@enovance.com>
Conflicts:
doc/rbd/rbd-openstack.rst
Looks like 'foo' is a leftover, see commit ea9fc87d89 ("doc: Removed
foo. Apparently myimage was added and foo not removed.").
Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
rbd binary will load rbd.ko itself, with appropriate options. Loading
it by hand with default options is undesirable.
Signed-off-by: Ilya Dryomov <ilya.dryomov@inktank.com>
Explain why people should be using the "raw" image format for RBD
volumes created for use by QEMU: using any other format adds only
overhead, but no extra value (since RBDs are also CoW and
thin-provisioned), plus the Qcow2 storage driver is not migration safe
when caching is enabled, whereas the RBD driver is.
Also, fix a minor glitch in the example qemu-img commands ("-f rbd"
and "-O rbd" should really be "-f raw" and "-O raw").
Finally, drop the "-f" option altogether on qemu-img commands where it
makes no sense (info and resize).
Signed-off-by: Florian Haas <florian@hastexo.com>
