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Bug Fix Advisory cman bug fix update

Advisory: RHBA-2009:1435-3
Type: Bug Fix Advisory
Severity: N/A
Issued on: 2009-09-10
Last updated on: 2009-09-18
Affected Products: RHEL Desktop Workstation (v. 5 client)
Red Hat Enterprise Linux (v. 5 server)
Red Hat Enterprise Linux EUS (v. 5.4.z server)

Details

Updated cman packages that fix a bug and add an enhancement are now available.

The Cluster Manager (cman) utility provides user-level services for
managing a Linux cluster.

This update applies the following bug fix:

* in several places internally, cman assumed a transition message meant the
node in question (or the sending node) was joining the cluster rather than
just sending its current post-transition state. In some circumstances, this
could lead to cman killing the wrong nodes. With this update, cman now
checks the first_trans flag, which is set when a node first encounters
another node in the cluster. Only if first_trans is set does cman now
consider the node as joining the cluster. (BZ#518061)

Also, this update includes the following enhancement:

First, if a node was asked to remove a key (fence) for a device that it was
not registered with, the node attempted to register with that device
on-the-fly. With this update, when nodes are asked to remove a key from
devices with which they are not registered, the fencing fails.

Second, for the common case of SAN environments with multiple Logical Unit
Numbers (LUNs), the devices (LUNs) that can be unregistered must be ordered
consistently on all nodes. Consistent ordering is not guaranteed by the
Logical Volume Manager (LVM), however; device names can vary from node to
node to prevent interleaving of fence operation among devices. With this
update, the fence_scsi agent extracts the device name (pv_name) and
Universally Unique Identifier (pv_uuid) and builds a hash keyed on the UUID
(which is consistent on all nodes). This ensures devices are ordered
consistently on each node.

Consequent to these two changes, the first node to fence removes the other
node's key from the device or devices. The second node, now not registered
with the device, is not able to fence the first. This allows fence_scsi to
work in a 2-node cluster. (BZ#520823)

All cman users should install this updated package, which fixes this bug
and enables users to use fence_scsi in a 2-node environment.


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
http://kbase.redhat.com/faq/docs/DOC-11259

Updated packages

RHEL Desktop Workstation (v. 5 client)

SRPMS:
cman-2.0.115-1.el5_4.2.src.rpm
File outdated by:  RHBA-2014:0282
    MD5: c0e9c56343e455d354d0af038d3966ee
 
IA-32:
cman-2.0.115-1.el5_4.2.i386.rpm
File outdated by:  RHBA-2014:0282
    MD5: 0159c37373af5b5719aba8107201220f
cman-devel-2.0.115-1.el5_4.2.i386.rpm
File outdated by:  RHBA-2014:0282
    MD5: 66747cc7ed7d1efd4f804dac47bd977c
 
x86_64:
cman-2.0.115-1.el5_4.2.x86_64.rpm
File outdated by:  RHBA-2014:0282
    MD5: 42a9327aeb5c0a09caa080998256eeba
cman-devel-2.0.115-1.el5_4.2.i386.rpm
File outdated by:  RHBA-2014:0282
    MD5: 66747cc7ed7d1efd4f804dac47bd977c
cman-devel-2.0.115-1.el5_4.2.x86_64.rpm
File outdated by:  RHBA-2014:0282
    MD5: f3f32c8c3061015b1a3b997792784eb5
 
Red Hat Enterprise Linux (v. 5 server)

SRPMS:
cman-2.0.115-1.el5_4.2.src.rpm
File outdated by:  RHBA-2014:0282
    MD5: c0e9c56343e455d354d0af038d3966ee
 
IA-32:
cman-2.0.115-1.el5_4.2.i386.rpm
File outdated by:  RHBA-2014:0282
    MD5: 0159c37373af5b5719aba8107201220f
cman-devel-2.0.115-1.el5_4.2.i386.rpm
File outdated by:  RHBA-2014:0282
    MD5: 66747cc7ed7d1efd4f804dac47bd977c
 
IA-64:
cman-2.0.115-1.el5_4.2.ia64.rpm
File outdated by:  RHBA-2014:0282
    MD5: 757aad87fd346f104a7b1f74e5e6b2e7
cman-devel-2.0.115-1.el5_4.2.ia64.rpm
File outdated by:  RHBA-2014:0282
    MD5: 9496f1f5240d32a040f623e2ca4db1ab
 
PPC:
cman-2.0.115-1.el5_4.2.ppc.rpm
File outdated by:  RHBA-2014:0282
    MD5: 20d5311e3b07377b6faa07edeea00785
cman-devel-2.0.115-1.el5_4.2.ppc.rpm
File outdated by:  RHBA-2014:0282
    MD5: 2beb0e86945dea9af79c86315102e1cb
cman-devel-2.0.115-1.el5_4.2.ppc64.rpm
File outdated by:  RHBA-2014:0282
    MD5: cc2589ce0945eab4a946e12c986b95ed
 
s390x:
cman-2.0.115-1.el5_4.2.s390x.rpm
File outdated by:  RHBA-2009:1622
    MD5: 4d478b7a9c9cf7bf59222a940276286c
cman-devel-2.0.115-1.el5_4.2.s390.rpm
File outdated by:  RHBA-2009:1622
    MD5: 8acdb4357026ae32c5a8237c1b1937a8
cman-devel-2.0.115-1.el5_4.2.s390x.rpm
File outdated by:  RHBA-2009:1622
    MD5: de3ea99733f9667acfd33e84587d64a8
 
x86_64:
cman-2.0.115-1.el5_4.2.x86_64.rpm
File outdated by:  RHBA-2014:0282
    MD5: 42a9327aeb5c0a09caa080998256eeba
cman-devel-2.0.115-1.el5_4.2.i386.rpm
File outdated by:  RHBA-2014:0282
    MD5: 66747cc7ed7d1efd4f804dac47bd977c
cman-devel-2.0.115-1.el5_4.2.x86_64.rpm
File outdated by:  RHBA-2014:0282
    MD5: f3f32c8c3061015b1a3b997792784eb5
 
Red Hat Enterprise Linux EUS (v. 5.4.z server)

SRPMS:
cman-2.0.115-1.el5_4.2.src.rpm
File outdated by:  RHBA-2014:0282
    MD5: c0e9c56343e455d354d0af038d3966ee
 
IA-32:
cman-2.0.115-1.el5_4.2.i386.rpm
File outdated by:  RHBA-2010:0596
    MD5: 0159c37373af5b5719aba8107201220f
cman-devel-2.0.115-1.el5_4.2.i386.rpm
File outdated by:  RHBA-2010:0596
    MD5: 66747cc7ed7d1efd4f804dac47bd977c
 
IA-64:
cman-2.0.115-1.el5_4.2.ia64.rpm
File outdated by:  RHBA-2010:0596
    MD5: 757aad87fd346f104a7b1f74e5e6b2e7
cman-devel-2.0.115-1.el5_4.2.ia64.rpm
File outdated by:  RHBA-2010:0596
    MD5: 9496f1f5240d32a040f623e2ca4db1ab
 
PPC:
cman-2.0.115-1.el5_4.2.ppc.rpm
File outdated by:  RHBA-2010:0596
    MD5: 20d5311e3b07377b6faa07edeea00785
cman-devel-2.0.115-1.el5_4.2.ppc.rpm
File outdated by:  RHBA-2010:0596
    MD5: 2beb0e86945dea9af79c86315102e1cb
cman-devel-2.0.115-1.el5_4.2.ppc64.rpm
File outdated by:  RHBA-2010:0596
    MD5: cc2589ce0945eab4a946e12c986b95ed
 
s390x:
cman-2.0.115-1.el5_4.2.s390x.rpm
File outdated by:  RHBA-2010:0596
    MD5: 4d478b7a9c9cf7bf59222a940276286c
cman-devel-2.0.115-1.el5_4.2.s390.rpm
File outdated by:  RHBA-2010:0596
    MD5: 8acdb4357026ae32c5a8237c1b1937a8
cman-devel-2.0.115-1.el5_4.2.s390x.rpm
File outdated by:  RHBA-2010:0596
    MD5: de3ea99733f9667acfd33e84587d64a8
 
x86_64:
cman-2.0.115-1.el5_4.2.x86_64.rpm
File outdated by:  RHBA-2010:0596
    MD5: 42a9327aeb5c0a09caa080998256eeba
cman-devel-2.0.115-1.el5_4.2.i386.rpm
File outdated by:  RHBA-2010:0596
    MD5: 66747cc7ed7d1efd4f804dac47bd977c
cman-devel-2.0.115-1.el5_4.2.x86_64.rpm
File outdated by:  RHBA-2010:0596
    MD5: f3f32c8c3061015b1a3b997792784eb5
 
(The unlinked packages above are only available from the Red Hat Network)

Bugs fixed (see bugzilla for more information)

518061 - Cman kills wrong nodes..
520823 - fence_scsi: support 2 node clusters


Keywords

cman


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