The Ceph Blog

Ceph blog stories provide high-level spotlights on our customers all over the world

  • March 12, 2013
    Ceph Settles in to Aggressive Release Cadence

    Since its inception, Ceph has always had a fast-paced rolling release tempo. However, with the amount of adoption that Ceph has had over the last year (including continued integration work with several other open source projects), we wanted to move to a more reliable, and predictable, release schedule. The release schedule can be divided into […]

  • March 5, 2013
    v0.58 released

    It’s been two weeks and v0.58 is baked.  Notable changes since v0.57 include: mon: rearchitected to utilize single instance of paxos and a key/value store (Joao Luis) librbd: fixed some locking issues with flatten (Josh Durgin) rbd: udevadm settle on map/unmap to avoid various races (Dan Mick) osd: move pg info, log into leveldb (== […]

  • February 19, 2013
    v0.57 released

    We’ve been spending a lot of time working on bobtail-related stabilization and bug fixes, but our next development release v0.57 is finally here!  Notable changes include: osd: default to libaio for the journal (some performance boost) osd: validate snap collections on startup osd: ceph-filestore-dump tool for debugging osd: deep-scrub omap keys/values ceph tool: some CLI […]

  • February 14, 2013
    v0.56.3 released

    We’ve fixed an important bug that a few users were hitting with unresponsive OSDs and internal heartbeat timeouts.  This, along with a range of less critical fixes, was sufficient to justify another point release.  Any production users should upgrade. Notable changes include: osd: flush peering work queue prior to start osd: persist osdmap epoch for […]

  • January 30, 2013
    v0.56.2 released

    The next bobtail point release is ready, and it’s looking pretty good.  This is an important update for the 0.56.x backport series that fixes a number of bugs and several performance issues.  All v0.56.x users are encouraged to upgrade. Notable changes since v0.56.1: osd: snapshot trimming fixes osd: scrub snapshot metadata osd: fix osdmap trimming […]

  • January 9, 2013
    v0.48.3 argonaut update released

    After several months, we have an important update for the argonaut v0.48.x series.  This release contains a critical fix that can prevent data loss or corruption in a power loss or kernel panic situation.  There are also several fixes for the OSDs and for the radosgw.  We recommend all v0.48.x users upgrade. Notes on upgrading: […]

  • January 8, 2013
    v0.56.1 released

    We found a few critical problems with v0.56, and fixed a few outstanding problems.  v0.56.1 is ready, and we’re pretty pleased with it! There are two critical fixes in this update: a fix for possible data loss or corruption if power is lost, and a protocol compatibility problem that was introduced in v0.56 (between v0.56 […]

  • January 1, 2013
    v0.56 released

    We’re bringing in the new year with a new release, v0.56, which will form the basis of the next stable series “bobtail.”  There is little in the way of new functionality since v0.55, as we’ve been focusing primarily on stability, performance, and upgradability from the previous argonaut stable series (v0.48.x).  If you are a current […]

  • December 13, 2012
    v0.55.1 released

    There were some packaging and init script issues with v0.55, so a small point release is out. It fixes a few odds and ends: init-ceph: typo (new ‘fs type’ stuff was broken) debian: fixed conflicting upstart and sysvinit scripts auth: fixed default auth settings osd: dropped some broken asserts librbd: fix locking bug, race with […]

  • December 4, 2012
    v0.55 released

    We had originally planned to make v0.55 a long-term stable release, but a lot of last-minute changes and fixes went into this cycle, so we are going to wait another cycle and make v0.56 bobtail.   A lot of work went into v0.55, however.  If you aren’t running argonaut (v0.48.*), please give v0.55 a try […]

  • November 14, 2012
    v0.54 released

    The v0.54 development release is ready!  This will be the last development release before v0.55 “bobtail,” our next long-term stable release, is ready.  Notable changes this time around include: osd: use entire device if journal is a block device osd: new caps structure (see below) osd: backfill target reservations (improve performance during recovery) ceph-fuse: many […]

  • October 16, 2012
    v0.53 released

    Another development release of Ceph is ready, v0.53.  We are getting pretty close to what will be frozen for the next stable release (bobtail), so if you would like a preview, give this one a go.  Notable changes include: librbd: image locking rbd: fix list command when more than 1024 (format 2) images osd: backfill […]

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