Spring has arrived (at least for some of us), and a new stable release of Ceph is ready! Thank you to everyone who has contributed to this release! Bigger ticket items since v0.56.x "Bobtail": * ceph-deploy: our new deployment tool to replace 'mkcephfs' * robust RHEL/CentOS support * ceph-disk: many improvements to support hot-plugging devices via chef and ceph-deploy * ceph-disk: dm-crypt support for OSD disks * ceph-disk: 'list' command to see available (and used) disks * rbd: incremental backups * rbd-fuse: access RBD images via fuse * librbd: autodetection of VM flush support to allow safe enablement of the writeback cache * osd: improved small write, snap trimming, and overall performance * osd: PG splitting * osd: per-pool quotas (object and byte) * osd: tool for importing, exporting, removing PGs from OSD data store * osd: improved clean-shutdown behavior * osd: noscrub, nodeepscrub options * osd: more robust scrubbing, repair, ENOSPC handling * osd: improved memory usage, log trimming * osd: improved journal corruption detection * ceph: new 'df' command * mon: new storage backend (leveldb) * mon: config-keys service * mon, crush: new commands to manage CRUSH entirely via CLI * mon: avoid marking entire subtrees (e.g., racks) out automatically * rgw: CORS support * rgw: misc API fixes * rgw: ability to listen to fastcgi on a port * sysvinit, upstart: improved support for standardized data locations * mds: backpointers on all data and metadata objects * mds: faster fail-over * mds: many many bug fixes * ceph-fuse: many stability improvements Notable changes since v0.60: * rbd: incremental backups * rbd: only set STRIPINGV2 feature if striping parameters are incompatible with old versions * rbd: require allow-shrink for resizing images down * librbd: many bug fixes * rgw: fix object corruption on COPY to self * rgw: new sysvinit script for rpm-based systems * rgw: allow buckets with _ * rgw: CORS support * mon: many fixes * mon: improved trimming behavior * mon: fix data conversion/upgrade problem (from bobtail) * mon: ability to tune leveldb * mon: config-keys service to store arbitrary data on monitor * mon: osd crush add|link|unlink|add-bucket ... commands * mon: trigger leveldb compaction on trim * osd: per-rados pool quotas (objects, bytes) * osd: tool to export, import, and delete PGs from an individual OSD data store * osd: notify mon on clean shutdown to avoid IO stall * osd: improved detection of corrupted journals * osd: ability to tune leveldb * osd: improve client request throttling * osd, librados: fixes to the LIST_SNAPS operation * osd: improvements to scrub error repair * osd: better prevention of wedging OSDs with ENOSPC * osd: many small fixes * mds: fix xattr handling on root inode * mds: fixed bugs in journal replay * mds: many fixes * librados: clean up snapshot constant definitions * libcephfs: calls to query CRUSH topology (used by Hadoop) * ceph-fuse, libcephfs: misc fixes to mds session management * ceph-fuse: disabled cache invalidation (again) due to potential deadlock with kernel * sysvinit: try to start all daemons despite early failures * ceph-disk: new list command * ceph-disk: hotplug fixes for RHEL/CentOS * ceph-disk: fix creation of OSD data partitions on >2TB disks * osd: fix udev rules for RHEL/CentOS systems * fix daemon logging during initial startup There are a few things to keep in mind when upgrading from Bobtail, specifically with the monitor daemons. Please see the upgrade guide and/or the complete release notes. In short: upgrade all of your monitors (more or less) at once. Cuttlefish is the first Ceph release on our new three-month stable release cycle. We are very pleased to have pulled everything together on schedule (well, only a week later than planned). The next stable release, which will be code-named Dumpling, is slated for three months from now (beginning of August). You can download v0.61 Cuttlefish from the usual locations: * Git at git://github.com/ceph/ceph.git * Tarball at http://ceph.com/download/ceph-0.61.tar.gz * For Debian/Ubuntu packages, see http://ceph.com/docs/master/install/debian * For RPMs, see http://ceph.com/docs/master/install/rpm -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
