Issued:
2016-10-11
Updated:
2016-10-11

RHBA-2016:2052 - openstack-neutron bug fix advisory

Synopsis

openstack-neutron bug fix advisory

Type/Severity

Bug Fix Advisory None

Topic

Updated OpenStack Networking packages that resolve various issues are now available for Red Hat OpenStack Platform 8.0 (Liberty) for RHEL 7.

Description

Red Hat OpenStack Platform provides the facilities for building a private or public infrastructure-as-a-service (IaaS) cloud running on commonly available physical hardware. This advisory includes packages for:

  • OpenStack Networking service

OpenStack Networking (neutron) is a virtual network service for OpenStack. Just as OpenStack Compute (nova) provides an API to dynamically request and configure virtual servers, OpenStack Networking provides an API to dynamically request and configure virtual networks. These networks connect 'interfaces' from other OpenStack services (e.g. virtual NICs from Compute VMs). The OpenStack Networking API supports extensions to provide advanced network capabilities (e.g. QoS, ACLs, network monitoring, etc.)

This update addresses the following issues:

  • Database precommit errors are sometimes inevitable due to the nature of concurrency. Precommit may issue database transactions depending on the mechanism driver, for example, certain operations on subnets and routers may interact with many other resources in a single database transaction (for example, IP allocation, ports). In addition, background operations for mechanism drivers (for example, background sync, monitoring resources periodically, among others) may touch those database tables with other requests. As a result of this behavior, transactions may sometimes fail during the precommit phase. With this update, the transaction will retry on failure, resulting in the mitigation of precommit issues. (BZ#1377518)

  • Prior to this update, the failure mode on OVS physical bridges was not set, defaulting to standalone. Consequently, when the ofctl_interface was set to native and the interface became unavailable (due to heavy load, OVS agent shutdown, network disruption), the flows on physical bridges may have been cleared, with the physical bridge traffic being disrupted. With this update, the OVS physical bridge fail mode is set to secure. As a result, flows are retained on physical bridges. (BZ#1372370)

Solution

Before applying this update, ensure all previously released errata relevant to your system have been applied.

Red Hat OpenStack Platform 8 runs on Red Hat Enterprise Linux 7.2.

The Red Hat OpenStack Platform 8 Release Notes contain the following:

  • An explanation of the way in which the provided components interact to form a working cloud computing environment.
  • Technology Previews, Recommended Practices, and Known Issues.
  • The channels required for Red Hat OpenStack Platform 8, including which channels need to be enabled and disabled.

The Release Notes are available at: This content is not included.https://access.redhat.com/documentation/en/red-hat-openstack-platform/version-8/release-notes/

This update is available through 'yum update' on systems registered through Red Hat Subscription Manager. For more information about Red Hat Subscription Manager, see:

This content is not included.https://access.redhat.com/documentation/en-US/Red_Hat_Subscription_Management/1/html/RHSM/index.html

Affected Products

ProductVersionArch
Red Hat OpenStack8x86_64

Updated Packages

  • openstack-neutron-7.1.1-7.el7ost.noarch.rpm
  • openstack-neutron-opencontrail-7.1.1-7.el7ost.noarch.rpm
  • python-networking-cisco-2.1.1-2.el7ost.src.rpm
  • openstack-neutron-rpc-server-7.1.1-7.el7ost.noarch.rpm
  • python-networking-cisco-2.1.1-2.el7ost.noarch.rpm
  • openstack-neutron-ofagent-7.1.1-7.el7ost.noarch.rpm
  • openstack-neutron-ovsvapp-7.1.1-7.el7ost.noarch.rpm
  • openstack-neutron-embrane-7.1.1-7.el7ost.noarch.rpm
  • openstack-neutron-metering-agent-7.1.1-7.el7ost.noarch.rpm
  • openstack-neutron-dev-server-7.1.1-7.el7ost.noarch.rpm
  • openstack-neutron-mellanox-7.1.1-7.el7ost.noarch.rpm
  • openstack-neutron-linuxbridge-7.1.1-7.el7ost.noarch.rpm
  • openstack-neutron-oneconvergence-nvsd-7.1.1-7.el7ost.noarch.rpm
  • openstack-neutron-sriov-nic-agent-7.1.1-7.el7ost.noarch.rpm
  • python-neutron-7.1.1-7.el7ost.noarch.rpm
  • openstack-neutron-brocade-7.1.1-7.el7ost.noarch.rpm
  • openstack-neutron-openvswitch-7.1.1-7.el7ost.noarch.rpm
  • openstack-neutron-common-7.1.1-7.el7ost.noarch.rpm
  • openstack-neutron-nuage-7.1.1-7.el7ost.noarch.rpm
  • python-neutron-tests-7.1.1-7.el7ost.noarch.rpm
  • openstack-neutron-bigswitch-7.1.1-7.el7ost.noarch.rpm
  • openstack-neutron-cisco-7.1.1-7.el7ost.noarch.rpm
  • openstack-neutron-ml2-7.1.1-7.el7ost.noarch.rpm
  • openstack-neutron-7.1.1-7.el7ost.src.rpm

Fixes

CVEs

(none)

References

(none)

Additional information