The Ceph Blog

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

  • May 7, 2021
    New in Pacific: SQL on Ceph

    A new libcephsqlite library is available in Pacific that provides a ceph SQLite3 Virtual File System (VFS). The VFS implements backend support for SQLite3 to store and manipulate a database file on Ceph’s distributed object store, RADOS. Normal unmodified applications using SQLite can switch to this new VFS with trivial reconfiguration. SQLite was chosen as …Read more

  • April 23, 2021
    New in Pacific: CephFS Updates

    The Ceph file system (CephFS) is the file storage solution of Ceph. Pacific brings many exciting changes to CephFS with a strong focus on usability, performance, and integration with other platforms, like Kubernetes CSI. Let’s talk about some of those enhancements. Multiple File System Support CephFS has had experimental support for multiple file systems for …Read more

  • April 16, 2021
    QoS Study with mClock and WPQ Schedulers

    Introduction Ceph’s use of mClock was primarily experimental and approached with an exploratory mindset. This is still true with other organizations and individuals continuing to either use the code base or modifying it according to their needs. DmClock exists in its own repository. Prior to the Ceph Pacific release, mClock could be enabled by setting …Read more

  • April 6, 2021
    Diving Deeper

    In our first post we introduced the joint development project among Penguin Computing, Seagate, and Red Hat culminating in the Penguin Computing DeepData solution. In this post, we’ll start with first principles, and then discuss some of the hardware and software technical details that drove our configuration changes. In particular, we will demonstrate  how to …Read more

  • March 30, 2021
    Diving into the Deep

    The IDC DataAge Whitepaper assesses where data is being generated, where it is being stored, byte shipments by media type, and a wealth of other information. The following chart from the whitepaper serves to illustrate how data is flowing towards, and reaches the highest concentrations at the core. Where there is data, there will be …Read more

  • November 30, 2020
    v15.2.7 Octopus released

    This is the 7th backport release in the Octopus series. This release fixes a serious bug in RGW that has been shown to cause data loss when a read of a large RGW object (i.e., one with at least one tail segment) takes longer than one half the time specified in the configuration option rgw_gc_obj_min_wait. …Read more

  • November 18, 2020
    v15.2.6 Octopus released

    This is the 6th backport release in the Octopus series. This releases fixes asecurity flaw affecting Messenger V2 for Octopus & Nautilus. We recommend users to update to this release. Notable Changes * CVE 2020-25660: Fix a regression in Messenger V2 replay attacks

  • November 12, 2020
    Welcoming Ernesto Puerta as the new Ceph Dashboard Component Lead

    In early 2018, the team working on the openATTIC project at SUSE approached the Ceph community with a proposal to turn the first incarnation of the (back then read-only) Ceph Mgr Dashboard that was initially created by John Spray and others into a built-in application that could be used for both managing and monitoring all …Read more

  • October 1, 2020
    Ceph Community Newsletter, September 2020 Edition

    Announcements Ceph Octopus Release Shirt Update By now, the Ceph Octopus release contributors should have received an email to request a free shirt; if you did not receive an email, contact FOUNDATION AT CEPH dot IO. Due to individual countries’ COVID-19 custom restrictions, we are unable to ship shirts to the following countries: http://communitycentral.tv/cool_stuff_store We …Read more

  • September 15, 2020
    December 2020 Outreachy: Ceph & Rook

    We’re excited to announce that Ceph and Rook will participate in this next Outreachy December 2020 round! “Outreachy internships were inspired in many ways by Google Summer of Code and by how few women and minorities applied for it in the past. By having a program targeted specifically towards people traditionally underrepresented in tech, we …Read more

  • September 1, 2020
    Ceph Community Newsletter, August 2020 Edition

    Announcements Outeachy December 2020 We’re excited to announce that Ceph and Rook will participate in this next Outreachy December 2020 round! See our latest blog post for more details. Code Walkthrough: KRBD I/O Flow Illya Dryomov gives a code walkthrough of the Linux Kernel RBD client. Catch our next walkthrough with Patrick Donnelly on the …Read more

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