RHBA-2011:1428 - Bug Fix Advisory

Topic

An updated openais package that fixes three bugs is now available for Red Hat
Enterprise Linux 5.

Description

The Application Interface Specification (AIS) is an API and a set of policies
for developing applications that maintain services during faults. The OpenAIS
Standards Based Cluster Framework is an OSI-certified implementation of the
Service Availability Forum AIS. The openais package contains the openais
executable, OpenAIS service handlers, default configuration files and an init
script.

This update fixes the following bugs:

• Previously, when OpenAIS was used in a lossy network, and a large number of

configuration changes occurred, OpenAIS sometimes terminated unexpectedly. To
solve this problem, the underlying source code has been modified, and OpenAIS no
longer crashes in the scenario described. (BZ#731460)

• In rare cases, rapidly starting and stopping the openais service sometimes

resulted in a deadlock. This update adapts the underlying source code to prevent
such a deadlock, resolving this issue. Deadlock situations no longer happen
during a rapid start/stop process. (BZ#739083)

• Under certain circumstances, the previous version of OpenAIS sometimes used an

incorrect sort message queue when the "memb_join" message was sent during
recovery. With this update, this error has been fixed, and OpenAIS now uses a
correct sort message queue in this scenario. (BZ#739086)

All users of openais are advised to upgrade to this updated package, which fixes
these bugs.

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/kb/docs/DOC-11259

Affected Products

• Red Hat Enterprise Linux Server 5 x86_64
• Red Hat Enterprise Linux Server 5 ia64
• Red Hat Enterprise Linux Server 5 i386
• Red Hat Enterprise Linux Workstation 5 x86_64
• Red Hat Enterprise Linux Workstation 5 i386
• Red Hat Enterprise Linux for Power, big endian 5 ppc
• Red Hat Enterprise Linux Server from RHUI 5 x86_64
• Red Hat Enterprise Linux Server from RHUI 5 i386

Fixes

• BZ - 731460 - openais crashes with combo of lossy network and config changes
• BZ - 739083 - openais deadlocks during rapid start/stop of process
• BZ - 739086 - openais could use wrong sort queue if memb_join message sent during recovery

CVEs

(none)

References

(none)