The Ceph Blog

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

  • June 11, 2015
    v9.0.1 released

    This development release is delayed a bit due to tooling changes in the build environment. As a result the next one (v9.0.2) will have a bit more work than is usual. Highlights here include lots of RGW Swift fixes, RBD feature work surrounding the new object map feature, more CephFS snapshot fixes, and a few …Read more

  • May 26, 2015
    Ceph Developer Summit: Jewel

    Hey Cephers, welcome to another Ceph Developer Summit cycle! As Infernalis filters down through the fancy new testing hardware and QA processes it’s time to start thinking about what ‘Jewel’ will hold in store for us (beyond Sage’s hope for a robust and ready CephFS!!!). Blueprint submissions are now open for any and all work …Read more

  • May 5, 2015
    v9.0.0 released

    This is the first development release for the Infernalis cycle, and the first Ceph release to sport a version number from the new numbering scheme. The “9” indicates this is the 9th release cycle–I (for Infernalis) is the 9th letter. The first “0” indicates this is a development release (“1” will mean release candidate and …Read more

  • April 27, 2015
    v0.87.2 Giant released

    This is the second (and possibly final) point release for Giant. We recommend all v0.87.x Giant users upgrade to this release. NOTABLE CHANGES ceph-objectstore-tool: only output unsupported features when incompatible (#11176 David Zafman) common: do not implicitly unlock rwlock on destruction (Federico Simoncelli) common: make wait timeout on empty queue configurable (#10818 Samuel Just) crush: …Read more

  • April 13, 2015
    v0.94.1 Hammer released

    This bug fix release fixes a few critical issues with CRUSH. The most important addresses a bug in feature bit enforcement that may prevent pre-hammer clients from communicating with the cluster during an upgrade. This only manifests in some cases (for example, when the ‘rack’ type is in use in the CRUSH map, and possibly …Read more

  • April 7, 2015
    v0.94 Hammer released

    This major release is expected to form the basis of the next long-term stable series. It is intended to supersede v0.80.x Firefly. Highlights since Giant include: RADOS Performance: a range of improvements have been made in the OSD and client-side librados code that improve the throughput on flash backends and improve parallelism and scaling on …Read more

  • March 10, 2015
    v0.80.9 Firefly released

    This is a bugfix release for firefly. It fixes a performance regression in librbd, an important CRUSH misbehavior (see below), and several RGW bugs. We have also backported support for flock/fcntl locks to ceph-fuse and libcephfs. We recommend that all Firefly users upgrade. For more detailed information, see the complete changelog. ADJUSTING CRUSH MAPS This point release fixes …Read more

  • March 5, 2015
    Incomplete PGs — OH MY!

    I recently had the opportunity to work on a Firefly cluster (0.80.8) in which power outages caused a failure of two OSDs. As with lots of things in technology, that’s not the whole story. The manner in which the power outages and OSD failures occurred put the cluster into a state with 5 placement groups …Read more

  • February 27, 2015
    v0.93 Hammer release candidate released

    This is the first release candidate for Hammer, and includes all of the features that will be present in the final release. We welcome and encourage any and all testing in non-production clusters to identify any problems with functionality, stability, or performance before the final Hammer release. We suggest some caution in one area: librbd. …Read more

  • February 26, 2015
    v0.87.1 Giant released

    This is the first (and possibly final) point release for Giant. Our focus on stability fixes will be directed towards Hammer and Firefly. We recommend that all v0.87 Giant users upgrade to this release. UPGRADING Due to a change in the Linux kernel version 3.18 and the limits of the FUSE interface, ceph-fuse needs be …Read more

  • February 16, 2015
    Ceph Developer Summit: Infernalis

    Hey Cephers, it’s that time again…time for another Ceph Developer Summit! As Hammer winds its way through the maze of QA and release procedures we need to start looking forward to what will come with Infernalis (which is a cool lookin’ squid if you haven’t seen it yet). Blueprint submissions are now open for any …Read more

  • February 3, 2015
    v0.92 released

    This is the second-to-last chunk of new stuff before Hammer. Big items include additional checksums on OSD objects, proxied reads in the cache tier, image locking in RBD, optimized OSD Transaction and replication messages, and a big pile of RGW and MDS bug fixes. UPGRADING The experimental ‘keyvaluestore-dev’ OSD backend has been renamed ‘keyvaluestore’ (for …Read more

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