The Ceph Blog

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

  • May 7, 2013
    v0.61 “Cuttlefish” released

    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 […]

  • May 3, 2013
    v0.56.5 released

    Behold, another Bobtail update!  This one serves three main purposes: it fixes a small issue with monitor features that is important when upgrading from argonaut -> bobtail -> cuttlefish, it backports many changes to the ceph-disk helper scripts that allow bobtail clusters to be deployed with the new ceph-deploy tool or our chef cookbooks, and it […]

  • April 2, 2013
    v0.60 released

    Another sprint and another release! This is the last development release before v0.61 Cuttlefish, which is due out in 4 weeks (around May 1). The next few weeks will be focused on making sure everything we’ve built over the last few months is rock solid and ready for you. We will have an -rc release […]

  • March 25, 2013
    v0.56.4 released

    There have been several important fixes that we’ve backported to bobtail that users are hitting in the wild.  Most notably, there was a problem with pool names with – and _ that OpenStack users were hitting, and memory usage by ceph-osd and other daemons due to the trimming of in-memory logs.  This and more is […]

  • March 21, 2013
    v0.59 released

    Another sprint and another release! This one is delayed a day or two due to power issues in our data center. The most exciting bit here is a big refactor in the monitor that has finally landed (thanks go to Joao Luis), but there is lots of other good stuff to go around: mon: rearchitected […]

  • 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 […]

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