[Blueprint servercloud-p-ceph] Preparing CEPH for main inclusion
Dave Walker
davewalker at ubuntu.com
Wed Dec 14 11:07:47 UTC 2011
Blueprint changed by Dave Walker:
Whiteboard changed:
Work Items:
[canonical-kernel-team] investigate large xattr support patch from Ted T'so in ext4
[canonical-kernel-team] potentially help push large xattr support to ext4
- [canonical-server] confer with kernel-team to decide on which to recommend, ext4/xfs/btrfs
- [canonical-server] define Ubuntu supported configurations of CEPH
- [canonical-server] improve ceph charms
- [canonical-server] integrate ceph charm with openstack charms
- [canonical-server] libvirt changes needed
- [canonical-server] MIR ceph
+ confer with kernel-team to decide on which to recommend, ext4/xfs/btrfs
+ define Ubuntu supported configurations of CEPH
+ improve ceph charms
+ integrate ceph charm with openstack charms
+ libvirt changes needed
+ MIR ceph
[serge-hallyn] enable rbd and rados in qemu-kvm builds
[nijaba] correctly message technology preview for non-supported bits
- [canonical-server] investigate apache + 100 continue support for rados S3 GW
- [canonical-server] push nagios and collectd plugins into Ubuntu/Debian/Upstream
- [canonical-server] setup automated build recipe against upstream source
- [canonical-server] import upstream test suite into archive
+ investigate apache + 100 continue support for rados S3 GW
+ push nagios and collectd plugins into Ubuntu/Debian/Upstream
+ setup automated build recipe against upstream source
+ import upstream test suite into archive
[sconklin] ext4/btrfs/xfs testing in QA
No formal spec needed IMO, this is just a pile of straight forward
TODO's.
* gceph is not reasonable to be in main (upstream doesnt want to
support)
Today rbd is loaded loaded at runtime
- MIR librbd and librados for qemu/kvm
- compile qemu-kvm with ceph (rbd, rados) block device support, see:
- https://launchpad.net/~kirkland/+archive/virt/+packages
- MIR all of ceph for hosting ceph
- include latest libvirt rbd support (for rbd authentication)
- Existing Openstack Support
- Nova since cactus can use CEPH for block
- Diablo added glance support for CEPH for image storage
- Dreamhost using mainline BTRFS and debian kernel for current deployment
- Dreamhost launching at scale in a few "weeks"
- CEPH is an independent business unit under Dreamhost
- Dreamhost using fastcgi + apache for rados gateway (can use nginx, too)
Dependencies:
modfast-cgi
Concerns;
- Upstream makes a release every 2 weeks
- No stable release branches upstream
- Limited deployment outside Dreamhost
- unencrypted over the wire
- apps can implement security on top of it
- IPv6 is supported
Additional Opportunities:
- Integrate tightly with OpenStack in packaging
- Add support for ceph in juju openstack charms
- BTRFS ideal, XFS also working well, ext4 missing "large xattr" support
- Upstream asserts that CEPH is under heavy development (cmdline programs remind user at every execution)
- in the openstack use case, for kvm, there is no need for kernel code at all
- if we want to support xen, it would require using the block device kernel code for rdb
Support Targets:
- RBD
--
Preparing CEPH for main inclusion
https://blueprints.launchpad.net/ubuntu/+spec/servercloud-p-ceph
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