RHBA-2015:0930 - Bug Fix Advisory

Topic

Updated OpenStack Telemetry packages that resolve various issues are now
available for Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno) for
RHEL 7.

Description

Red Hat Enterprise Linux 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 Telemetry service

OpenStack Telemetry (ceilometer) collects customer usage data for metering
purposes. Telemetry implements bus listener, push, and polling agents for
data collection. This data is stored in a database and presented via the
REST API. In addition, Telemetry's extensible design means it can be
optionally extended to gather customized data sets.

This update addresses the following issues:

• Capturing virtual machine memory usage is an useful metric to have in

Ceilometer. This update includes a new enhancement that implements memory
usage meter for virtual machines by inspecting libvirt 'virDomainMemoryStats'.
As a result, new usage metrics are captured by inspecting the relevant
libvirt APIs. (BZ#1200462)

• Previously, OpenStack Telemetry did not handle a specific exception

(AutoReconnect) when MongoDB ReplicaSet was used. As a result, reconnections
did not work properly.
With this update, built-in handling in the 'pymongo' client is used to deal
with AutoReconnect gracefully. As a result, connection retry is handled in
an acceptable fashion in both single and ReplicaSet installations. (BZ#1200473)

• In order to consume lifecycle events on network service resources such as

firewall, load balancer and VPN services, this update adds a new enhancement
for capturing network services lifecycle event notifications.
As a result, it includes new meters representing the support for consuming
{FW|LB|VPN}aaS lifecycle events from OpenStack Networking. (BZ#1200495)

• To capture rate based disk metrics, this update adds transformation rules

for pre-device disk meters in order to derive per-second rates.
As a result, new derived rate based disk metrics and samples are
generated. (BZ#120051)

• Previously, in some cases when using 'libvirt' driver, certain instances

did not support usage metrics due to lack of balloon driver. This led to an
unhandled exception that caused an Attribute error.
This update adds checks in memory pollster to check if the object in 'None'
and skip the pollster and log a message. As a result, unhandled exceptions
are handled appropriately and logged. (BZ#1213471)

Solution

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

Red Hat Enterprise Linux OpenStack Platform 6 runs on Red Hat Enterprise
Linux 7.1.

This update is available through 'yum update' on systems registered through
Red Hat Subscription Manager. For more information about Red Hat
Subscription Manager, see:
https://access.redhat.com/documentation/en-US/Red_Hat_Subscription_Management/1/html/RHSM/index.html

Red Hat Enterprise Linux OpenStack Platform 6 documentation is available
at:
https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux_OpenStack_Platform

The Red Hat Enterprise Linux OpenStack Platform 6 Release Notes (see the
References section) contain the following:

• Technology Previews, Recommended Practices, and Known Issues.
• The channels required for Red Hat Enterprise Linux OpenStack Platform 6,

including which channels need to be enabled and disabled.

Affected Products

• Red Hat OpenStack 6.0 x86_64

Fixes

• BZ - 1200462 - add memory stats meter to libvirt inspector
• BZ - 1200473 - MongoDB - Fix bug with reconnection to new master node
• BZ - 1200495 - Support for capturing network services notifications
• BZ - 1200511 - Add per device rate metrics for instances
• BZ - 1200515 - Add new notification types for volumes/snapshots
• BZ - 1200519 - Add alarm_name field to alarm notification
• BZ - 1210458 - Rebase openstack-ceilometer to 2014.2.3
• BZ - 1213471 - AttributeError may be raised if virt backend is libvirt in some case

CVEs

(none)

References

• https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux_OpenStack_Platform/6/html/Release_Notes/index.html