A Blog of the ZHAW Zurich University of Applied Sciences
How does one remove a faulty/un/re-provisioned physical machine from the list of managed physical nodes in OpenStack nova? Recently we had to remove a compute node in our cluster for management reasons (read, it went dead on us). But nova perpetually maintains the host entry hoping at some point in time, it will come back […]
The famous Nagios open source monitoring system has become a de facto standard in recent years. Unlike commercial monitoring solutions Nagios does not come as a one-size-fits-all monitoring system with thousands of monitoring agents and monitoring functions. Nagios is rather a small, lightweight monitoring system reduced to the bare essential of monitoring: an event management […]
In Mobile Cloud Networking (MCN) we rely heavily on OpenStack, OpenShift and of course Automation. So that developers can get working fast with their own local infrastructure, we’ve spent time setting up an automated workflow, using Vagrant and puppet to setup both OpenStack and OpenShift. If you want to experiment with both OpenStack and OpenShift locally, simply clone this project…
Openstack is generally well suited for typical use cases and there is hardly reasons to tinker with advance options and features available. Normally you would plan your public IP addresses usage and management well in advance, but if you are an experimental lab like ours, many a times things are handled in an ad-hoc manner. […]
If you ever tried to implement High Availability in OpenStack by using Pacemaker, you might be disappointed by Pacemaker’s extremely slow recovery speed. Pacemaker recovers OpenStack at a very low pace – and even worse: it sometimes detects outages when they do not occur. As a result Pacemaker starts unnecessary computationally intensive recovery actions which […]
Ceilometer Introduction Ceilometer is a monitoring tool for OpenStack cloud environments. In the next OpenStack release called Havana it will take part as a core component. However, Ceilometer is also available for the OpenStack releases Folsom and Grizzly. Currently Ceilometer offers only data of the OpenStack core components and the virtual machines of the cloud. […]
The “Dependability Modeling Framework” (DMF) becomes famous: Konstantin Benz and Thomas M. Bohnert will present their newest paper about the Dependability Modeling Framework at the First International Workshop on “Cloud Technologies and Energy Efficiency in Mobile Communication Network” (CLEEN) which takes place from September 2-5 in Las Vegas. The ICCLab researchers will show a methodology on […]
Of all the IaaS software stack available, the one gaining rapidly in popularity is OpenStack. It has a huge community behind it and it enjoys support from several large IT vendors therefore ensuring a clear and long development and support roadmap ahead. Naturally it makes a logical deployment choice by numerous cloud vendors across the […]
In part 3 of our article series “Dependability Modeling on OpenStack” we have discussed that we should run Chaos Monkey tests on an OpenStack HA installation and then collect data about the impact of the attack. While we did say that we want to collect data about the implemented OpenStack HA architecture, we were not […]
As kindof advertisement for the new OpenStack Grizzly release we have created an automated single-node OpenStack Grizzly installation which uses Vagrant and Puppet. The automated installation can be downloaded from Github using the following URL: https://github.com/kobe6661/vagrant_grizzly_install.git Please feel free to install it on your machine and test the new release. Schlagwörter: Github, grizzly, installation, openstack, […]