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Red Hat Product Errata RHBA-2014:0548 - Bug Fix Advisory
Issued:
2014-05-27
Updated:
2014-05-27

RHBA-2014:0548 - Bug Fix Advisory

  • Overview
  • Updated Packages

Synopsis

vdsm 3.3.3 bug fix update

Type/Severity

Bug Fix Advisory

Topic

Updated vdsm packages that fix a bug are now available.

Description

VDSM is a management module that serves as a Red Hat Enterprise Virtualization
Manager agent on Red Hat Enterprise Virtualization Hypervisor or Red Hat
Enterprise Linux hosts.

All users managing Red Hat Enterprise Linux Virtualization hosts using Red Hat
Enterprise Virtualization Manager are advised to install these updated packages,
which fixes these issues.

Changes to the vdsm component:

  • Previously, migration start time was captured at the start of the

MigrationSourceThread process. This meant that the migration would fail if the
virtual machine had to wait a long time to acquire the migration semaphore. Now,
the migration start time is captured when migration begins. (BZ#1097341)

  • Previously, VDSM would not start correctly under certain conditions after

rebooting a hypervisor. This was caused by qemu-sanlock.conf not being persisted
after rebooting the hypervisor when the command 'vdsm-tool configure --force'
was run and libvirt sanlock was enabled. Now, qemu-sanlock.conf is persisted
even after rebooting hypervisors, making it possible for VDSM to start
correctly. (BZ#1095303)

  • * Red Hat Enterprise Virtualization Hypervisor 6.5 added support for

memory-based file systems (for the purposes of testing), which included code
with O(N^2) complexity. This introduced performance issues, such as high cpu
consumption by vdsm, in certain environments that utilized numerous storage
domains. Now, the additional support for memory-based file systems has been
disabled and does not contribute to performance problems. (BZ#1095907)

  • Previously, VDSM would report that virtual machines experiencing any I/O error

were in a paused state. This was caused by the logic used by VDSM to check I/O
errors received from libvirt. Now, the logic used to check such errors has been
revised so that VDSM detects the nature of the error, allowing I/O errors to be
correctly reported and handled. (BZ#1090079)

  • Previously, migration of virtual machines between hypervisors would fail under

certain conditions, causing the virtual machine being migrated to crash. This
was caused by the logic used to clean up sockets for virtual machines after VDSM
restarted due to an unexpected failure. Now, the logic used to clean up sockets
for virtual machines has been revised so that VDSM correctly cleans up sockets
after VDSM is restarted, allowing virtual machines to migrate without issue.
(BZ#1088906)

  • Previously, the getStorageDomainInfo action of the vdsClient command would

fail when run under certain conditions. Now, the logic used to retrieve
information on storage domains using the vdsClient command has been revised so
that the action returns information correctly. (BZ#1084970)

  • Previously, the vmHotplugDisk action would fail with the error "VolumeError:

Bad volume specification". This was caused by a multipath race condition that
would result in a situation in which multipath was not given enough time to
create the /dev/mapper entry for the LUN on the host on which the virtual
machine was running. Now, the logic used to scan for device visibility has been
revised so that multipath has the time required for creating the /dev/mapper
entry for the LUN on the host on which the virtual machine is running.
(BZ#1066413)

  • Previously, VDSM would report that a storage domain was active even although a

link for that storage domain was not present in the /rhev/data-center/SPUUID
directory. This would occur when the host was in a non-operational state and was
able to connect to the storage pool but was not able to connect to any storage
domains. Now, the logic for refreshing storage domain links has been revised so
that those links will be created correctly for storage domains even under these
circumstances. (BZ#1066409)

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/site/articles/11258

Affected Products

  • Red Hat Virtualization 3.3 x86_64
  • Red Hat Virtualization 3 for RHEL 6 x86_64

Fixes

  • BZ - 1066409 - [vdsm] storage domain is reported as 'active' by host, even though its link under /rhev/data-center/SPUUID/ is missing
  • BZ - 1066413 - vmHotplugDisk failed with "VolumeError: Bad volume specification"
  • BZ - 1084946 - vdsm libvirt and sanlock daemons need to be restarted after upgrading to sanlock 2.8
  • BZ - 1084970 - [vdsm] getStorageDomainInfo fails due to key 'info' missing from poolInfo for master domain
  • BZ - 1088906 - VM migration back to original host fail on "file exists"
  • BZ - 1090079 - vdsm reports guest as paused on any IO error, even if libvirt/qemu policy is set to "report"
  • BZ - 1095303 - /etc/libvirt/qemu-sanlock is not persisted and vdsm fails to start on reboot
  • BZ - 1095907 - VDSM is consuming a lot of cpu time even with no active VMs
  • BZ - 1097341 - The start time for 'migration_max_time_per_gib_mem' appears to be calculated too early.

CVEs

(none)

References

(none)

Note: More recent versions of these packages may be available. Click a package name for more details.

Red Hat Virtualization 3.3

SRPM
vdsm-4.13.2-0.17.el6ev.src.rpm SHA-256: b08d203e98f5a1814023a682a65b9a6f90f9c70fe28b61d6c77a8eb22aa4341f
x86_64
vdsm-bootstrap-4.13.2-0.17.el6ev.noarch.rpm SHA-256: a241a86085dcfe1873de6c85ed38cdefe24f06d061a2dac8917f8607c0623324
vdsm-debuginfo-4.13.2-0.17.el6ev.x86_64.rpm SHA-256: 9412e0848b76219afa2dbec25427d906369306539891244116f784b5aa06826a

Red Hat Virtualization 3 for RHEL 6

SRPM
vdsm-4.13.2-0.17.el6ev.src.rpm SHA-256: b08d203e98f5a1814023a682a65b9a6f90f9c70fe28b61d6c77a8eb22aa4341f
x86_64
vdsm-4.13.2-0.17.el6ev.x86_64.rpm SHA-256: 068e3422b3f91af3d050cb5cdf6cb14ec51b440ba5391ad7a091c1c1aa548a2a
vdsm-cli-4.13.2-0.17.el6ev.noarch.rpm SHA-256: 9d4f430e3cb8814a7076d9ff3a2b2c64d7f16dcb3dc230a6e5d034c8cf9c2bf5
vdsm-debuginfo-4.13.2-0.17.el6ev.x86_64.rpm SHA-256: 9412e0848b76219afa2dbec25427d906369306539891244116f784b5aa06826a
vdsm-hook-vhostmd-4.13.2-0.17.el6ev.noarch.rpm SHA-256: bfb5f50948f7b9a267463c4f4d08ca62bb663b04073d9afbbac3302c0dbfc1ce
vdsm-python-4.13.2-0.17.el6ev.x86_64.rpm SHA-256: a0719c80a966d692678d9db7d89b7f6bc39750d9a6411b15c3125fe72256e0b8
vdsm-reg-4.13.2-0.17.el6ev.noarch.rpm SHA-256: 06cc4280f4a0ffcab9c6cb9f34ca0ebaa9e305e1632fff2935a1c049bb53b1c6
vdsm-xmlrpc-4.13.2-0.17.el6ev.noarch.rpm SHA-256: 1447341225d865059d65445574e4472199d438921e6f0c91e4ea47128eb98df5

The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.

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