RDO Blog roundup, week of August 3rd

Here’s what RDO enthusiasts have been writing about over the past week.

If you’re writing about RDO, or about OpenStack on CentOS, Fedora or RHEL, and you’re not on my list, please let me know!

A Cinder Road to Active/Active HA, by Gorka Eguileor

We all want to see OpenStack’s Block Storage Service operating in High Availability with Active/Active node configurations, and we are all keen to contribute to make it happen, but what does it take to get there?

… read more at http://tm3.org/1i

From 0 to OpenStack with devtest: the process in details, by Yanis Guenane

Devtest is the upstream way to deploy Openstack with TripleO. In simple words it takes you from a fresh bare metal server to an overcloud (understand OpenStack cloud) up and running with a single script.

… read more at http://tm3.org/1j

How VMs access metadata via qrouter-namespace in Openstack Kilo, by Boris Derzhavets

It is actually an update for Neutron on Kilo of original blog entry http://techbackground.blogspot.ie/2013/06/metadata-via-quantum-router.html considering Quantum implementation on Grizzly.

… read more at http://tm3.org/1k

CPU Pinning and NUMA Topology on RDO Kilo on Fedora Server 22, by Boris Derzhavets

Posting bellow follows up http://redhatstackblog.redhat.com/2015/05/05/cpu-pinning-and-numa-topology-awareness-in-openstack-compute/ on RDO Kilo installed on Fedora 22 . See detailed instructions for installation here http://lxer.com/module/newswire/view/216855/index.html

… read more at http://tm3.org/1l

OpenStack CPU topology for High Throughput Computing, by Tim Bell

We are starting to look at the latest features of OpenStack Juno and Kilo as part of the CERN OpenStack cloud to optimise a number of different compute intensive applications.

We’ll break down the tips and techniques into a series of small blogs. A corresponding set of changes to the upstream documentation will also be made to ensure the options are documented fully.

… read more at http://tm3.org/1m

CPU Pinning and NUMA Topology on RDO Kilo && Hypervisor Upgrade up to qemu-kvm-ev-2.1.2-23.el7.1 on CentOS 7.1 by Boris Derzhavets

Posting bellow follows up http://redhatstackblog.redhat.com/2015/05/05/cpu-pinning-and-numa-topology-awareness-in-openstack-compute/ on RDO Kilo upgraded via qemu-kvm-ev-2.1.2-23.el7.1 on CentOS 7.1

… read more at http://tm3.org/1n

8CPU Model Selection for High Throughput Computing by Tim Bell

As part of the work to tune the configuration of the CERN cloud, we have been exploring various options for tuning compute intensive workloads.

One option in the Nova configuration allows the model of CPU visible in the guest to be configured between different alternatives.

… read more at http://tm3.org/1o

8EPT and KSM for High Throughput Computing, by Tim Bell

As part of the analysis of CERN’s compute intensive workload in a virtualised infrastructure, we have been examining various settings of KVM to tune the performance.

… read more at http://tm3.org/1p

Simpler Road to Cinder Active-Active by Gorka Eguileor

Last week I presented a possible solution to support Active-Active configurations in Cinder, and as much as it pains me to admit it, it was too complex, so this week I’ll present a simpler solution.

… read more at http://tm3.org/1q

NUMA and CPU Pinning in High Throughput Computing, by Tim Bell

CERN’s OpenStack cloud runs the Juno release on mainly CentOS 7 hypervisors. Along with previous tuning options described in this blog which can be used on Juno, a number of further improvements have been delivered in Kilo.

… read more at http://tm3.org/1r

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