RHBA-2019:0207 - Bug Fix Advisory

Topic

Updated sbd packages that fix one bug are now available for Red Hat Enterprise Linux 7.

Description

The sbd packages provide integration with hardware-based watchdogs allowing the SBD utility to be used as a cluster-fencing device. SBD watches the cluster process and initiates a hardware reset if one of the processes fails or the node loses quorum.

This update fixes the following bug:

• Previously, the sbd-daemon always triggered a reboot when it detected a timeout. If there was a hardware watchdog configured to trigger a poweroff, there would be a race between the poweroff and a reboot with potential result of an undesired reboot. In case of a usage without a hardware watchdog, there was no way to trigger a poweroff at all if that was the desired action. With this update, configuration allows to set the desired action and it is possible to trigger a reliable poweroff. (BZ#1666202)

Users of sbd are advised to upgrade to these updated packages, which fix this bug.

Solution

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Red Hat Enterprise Linux High Availability for x86_64 - Extended Update Support 7.5 x86_64
• Red Hat Enterprise Linux Resilient Storage for x86_64 - Extended Update Support 7.5 x86_64
• Red Hat Enterprise Linux Resilient Storage for Power, little endian - Extended Update Support 7.5 ppc64le
• Red Hat Enterprise Linux High Availability for Power, little endian - Extended Update Support 7.5 ppc64le

Fixes

• BZ - 1666202 - timeout-action triggered by sbd-daemon isn't configurable [rhel-7.5.z]

CVEs

(none)

References

• https://access.redhat.com/documentation/en-US/red_hat_enterprise_linux/7/html/7.5_release_notes/index.html