RHBA-2011:1012 - Bug Fix Advisory

Topic

An updated openais package that fixes various 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:

• When there were a lot of nodes left at the same time during the controlled

shutdown of the Corosync Cluster Engine, the nodes had to wait for the token
timeout for each node. As a result, this unintended behavior slowed down the
whole shut down process. The problem has been fixed so that a JOIN message is
now sent out with the node removed. (BZ#645299)

• Previously, the amount of open files limit was not handled gracefully. The

problem has been fixed in this update so that if the open files limit is now
reached, the published server listening socket is withdrawn. Then when a
connection is closed, the server listening socket is republished, if necessary.
(BZ#611434)

• When the SysV semaphores or Shared Memory (SHM) limit was exceeded, a client

could have looped forever. This bug has been fixed and the "SA_AIS_ERR_NO_SPACE"
error value is returned if one of the limits is exceeded. (BZ#561546)

• Previously, if the token was lost, the old ring ID information was restored,

causing a commit token to be accepted when it should have been rejected. This
erroneously accepted commit token led to an assertion, which has been fixed in
this update. (BZ#623176)

• When the ring ID file for the processor was less then 8 bytes, totemsrp

asserted as a result. This has been fixed so that OpenAIS will now create a
fresh ring ID file data when the incorrect number of bytes is read from the ring
ID file. (BZ#675206)

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 - 561546 - aisexec spins when semaphores run out
• BZ - 611434 - Crashing when going over open file limits.
• BZ - 623176 - token loss during recovery can trigger abort
• BZ - 675206 - openais assert when leftover ring files are present in /var/lib/openais

CVEs

(none)

References

(none)