The Ceph Blog

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

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 other cases), but for safety we strongly recommend that all users use 0.94.1 instead of 0.94 when upgrading.

There is also a fix in the new straw2 buckets when OSD weights are 0.

We recommend that all v0.94 users upgrade.

NOTABLE CHANGES

crush: fix divide-by-0 in straw2 (#11357 Sage Weil)
crush: fix has_v4_buckets (#11364 Sage Weil)
osd: fix negative degraded objects during backfilling (#7737 Guang Yang)

For more detailed information, see the complete changelog.

GETTING CEPH

Git at git://github.com/ceph/ceph.git
Tarball at http://ceph.com/download/ceph-0.94.1.tar.gz
For packages, see http://ceph.com/docs/master/install/get-packages
For ceph-deploy, see http://ceph.com/docs/master/install/install-ceph-deploy

Related

Sage Weil

Getting Ceph

Git git://github.com/ceph/ceph.git
Tarball http://download.ceph.com/tarballs/
For packages http://ceph.com/docs/master/install/get-packages
For ceph-deploy http://ceph.com/docs/master/install/install-ceph-deploy

Careers

Contributors to CEPH

View all

© 2017 - Red Hat, Inc. All rights reserved.