RHBA-2011:0958 - Bug Fix Advisory

Topic

Updated cluster and gfs2-utils packages that fix one bug are now available for
Red Hat Enterprise Linux 6.

Description

The Red Hat Cluster Manager is a collection of technologies working together to
provide data integrity and the ability to maintain application availability in
the event of a failure. Using redundant hardware, shared disk storage, power
management, and robust cluster communication and application failover
mechanisms, a cluster can meet the needs of the enterprise market.

This update fixes the following bug:

• Previously, when a custom multicast address was configured, the configuration

parser incorrectly set the default value of the time-to-live (TTL) variable for
multicast packet to 0. Consequently, cluster nodes could not communicate with
each other. With this update, the default TTL value is set to 1, thus fixing
this bug. (BZ#720100)

Users of cluster and gfs2-utils are advised to upgrade to these updated
packages, which fix this bug.

Solution

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

This update is available via Red Hat Network. Details on how to use the Red
Hat Network to apply this update are available at
https://access.redhat.com/kb/docs/DOC-11259

Affected Products

• Red Hat Enterprise Linux High Availability for x86_64 6 x86_64
• Red Hat Enterprise Linux High Availability for x86_64 6 i386
• Red Hat Enterprise Linux High Availability for x86_64 - Extended Update Support 6.1 x86_64
• Red Hat Enterprise Linux High Availability for x86_64 - Extended Update Support 6.1 i386
• Red Hat Enterprise Linux Resilient Storage for x86_64 6 x86_64
• Red Hat Enterprise Linux Resilient Storage for x86_64 6 i386
• Red Hat Enterprise Linux Resilient Storage for x86_64 - Extended Update Support 6.1 x86_64
• Red Hat Enterprise Linux Resilient Storage for x86_64 - Extended Update Support 6.1 i386
• Red Hat Enterprise Linux High Availability (for RHEL Server) from RHUI 6 x86_64
• Red Hat Enterprise Linux High Availability (for RHEL Server) from RHUI 6 i386
• Red Hat Enterprise Linux Resilient Storage (for RHEL Server) from RHUI 6 x86_64
• Red Hat Enterprise Linux Resilient Storage (for RHEL Server) from RHUI 6 i386

Fixes

• BZ - 720100 - Cluster nodes will not communicate if multicast address is specified

CVEs

(none)

References

(none)