Issued:
2013-11-21
Updated:
2013-11-21

RHBA-2013:1632 - sanlock bug fix and enhancement update

Synopsis

sanlock bug fix and enhancement update

Type/Severity

Bug Fix Advisory

Topic

Updated sanlock packages that fix several bugs and add various enhancements are now available for Red Hat Enterprise Linux 6.

Description

The sanlock packages provide a shared storage lock manager. Hosts with shared access to a block device or a file can use sanlock to synchronize their activities. VDSM and libvirt use sanlock to synchronize access to virtual machine images.

The sanlock packages have been upgraded to upstream version 2.8, which provides a number of bug fixes and enhancements over the previous version, including a new API provided for applications to request the release of a resource. (BZ#960989)

This update fixes the following bug:

  • Previously, the wdmd daemon did not always select the functional device when some watchdog modules provided two devices. Consequently, wdmd did not work correctly in some instances. A patch has been applied to address this bug, and wdmd now verifies the state of both devices and selects the one that works properly. (BZ#961032)

In addition, this update adds the following enhancements:

  • With this update, a new API has been provided for applications to verify the status of hosts in a lockspace. (BZ#960993)

  • With this update, a new API has been provided for applications to check the status of hosts that are holding a resource lease. (BZ#966088)

Users of sanlock are advised to upgrade to these updated packages, which fix these bugs and add these enhancements.

Solution

Before applying this update, make sure all previously released errata relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/site/articles/11258

Affected Products

ProductVersionArch
Red Hat Virtualization3x86_64
Red Hat Enterprise Linux for Scientific Computing6x86_64
Red Hat Enterprise Linux Workstation6x86_64
Red Hat Enterprise Linux Server6x86_64
Red Hat Enterprise Linux Server from RHUI6x86_64
Red Hat Enterprise Linux Server - Retired Extended Life Cycle Support6x86_64
Red Hat Enterprise Linux Server - Extended Life Cycle Support6x86_64
Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension6x86_64
Red Hat Enterprise Linux Desktop6x86_64

Updated Packages

  • sanlock-devel-2.8-1.el6.x86_64.rpm
  • sanlock-python-2.8-1.el6.x86_64.rpm
  • sanlock-2.8-1.el6.src.rpm
  • fence-sanlock-2.8-1.el6.x86_64.rpm
  • sanlock-lib-2.8-1.el6.x86_64.rpm
  • sanlock-2.8-1.el6.x86_64.rpm
  • sanlock-debuginfo-2.8-1.el6.x86_64.rpm

Fixes

CVEs

(none)

References

(none)

Additional information