The Ceph Blog

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

  • October 17, 2013
    v0.61.9 Cuttlefish released

    This point release resolves several low to medium-impact bugs across the code base, and fixes a performance problem (CPU utilization) with radosgw. We recommend that all production cuttlefish users upgrade. Notable changes: ceph, ceph-authtool: fix help (Danny Al-Gaaf) ceph-disk: partprobe after creating journal partition ceph-disk: specific fs type when mounting (Alfredo Deza) ceph-fuse: fix bug […]

  • October 9, 2013
    Ceph Performance Part 1: Disk Controller Write Throughput

    Introduction Here at Inktank our developers have been toiling away at their desks, profiling and optimizing Ceph to make it one of the fastest distributed storage solutions on the planet.  One question we often get asked is how to build an optimally performing Ceph cluster.  This isn’t always an easy question to answer because it …Read more

  • October 6, 2013
    v0.70 released

    Another development release is out.  Our timing on these has been slightly erratic.  As a result, this one has a bit less stuff than 0.69 did or 0.71 will.  The highlights are some rgw and mon fixes, and the architecture detection for enabling the optimized Intel CRC32c code is now working (which is nice: it’s […]

  • October 4, 2013
    v0.67.4 Dumpling released

    This point release fixes an important performance issue with radosgw, keystone authentication token caching, and CORS. All users (especially those of rgw) are encouraged to upgrade. Notable changes: crush: fix invalidation of cached names crushtool: do not crash on non-unique bucket ids mds: be more careful when decoding LogEvents mds: fix heap check debugging commands […]

  • September 26, 2013
    On the Road to a Better Ceph-Deploy

    Ceph-deploy is the easy deployment tool for Ceph, but for a while it caused more than one headache: almost no logging and no clear error messages when something went wrong. There has been a *lot* of effort trying to get those (and other) issues ironed out and making ceph-deploy way better. Like, ridiculously better. This […]

  • September 24, 2013
    CloudPlatform and Ceph: Delivering the Power of Choice

    The CloudPlatform 4.2 eagle has landed! This is especially exciting for Ceph users as it expands the integration footprint to give much better breadth and depth. The best part? The Ceph community was leading the charge on the integration work, and has done an amazing job in delivering powerful options to the end users. While […]

  • September 18, 2013
    v0.69 released

    Our v0.69 development release of Ceph is ready!  The most notable user-facing new feature is probably improved support for CORS in the radosgw.  There has also been a lot of new work going into the tree behind the scenes on the OSD that is laying the groundwork for tiering and cache pools.  As part of […]

  • September 16, 2013
    Why Not Open Source?

    In recent history it seems that open source is becoming much more of a household name (are we sick of blog entries titled “Open Source on the Desktop” yet?). From Linux to WordPress and everything in between, there are a myriad of projects that are both successful and freely available via source to anyone who […]

  • September 12, 2013
    Distributed storage and thinking inside the box

    I usually try to ignore all of the silly things that people say on the internet, but every once in a while there is something from a reputable source that is sufficiently misleading that I feel obliged to respond.  Cloudscaling CEO Randy Bias’s whitepaper Converged Storage, Wishful Thinking & Reality is an example of the […]

  • September 10, 2013
    Monitors and Paxos, a chat with Joao

    This is a dialog where Joao Luis, Ceph core developer with an intimate knowledge of the monitor, answers Loïc Dachary’s questions who discovers this area of the Ceph code base. Many answers are covered in Joao’s article Ceph’s New Monitor Changes (March 2013), with a different angle. Loic: My line of questions will be from […]

  • September 10, 2013
    v0.67.3 Dumpling released

    This point release fixes a few important performance regressions with the OSD (both with CPU and disk utilization), as well as several other important but less common problems. We recommend that all production users upgrade. Notable changes since v0.67.2 include: ceph-disk: partprobe after creation journal partition ceph-disk: specify fs type when mounting ceph-post-file: new utility […]

  • September 4, 2013
    Diffusing the Ink – September

    If you have ventured out under the bright lights of a convention hall in recent months there is a good chance you have had a close encounter with one of the Inktankians spreading the Ceph gospel. From OSCON to a Ceph Day in NYC and Dreamcon to the largest Boston OpenStack meetup to date, we […]