Network Throughput Testing with iPerf

Hits: 154Use Iperf to check network speed between instances Virtual machines and raw metal servers. iPerf is a command-line tool used in diagnosing network speed issues by measuring the maximum network throughput a server can handle. It is particularly useful when experiencing network speed issues, as you can use iPerf to determine which server is unable …

OpenStack Gets Its Swagger Back

Hits: 128While the US and European markets for OpenStack continue to grow slowly and steadily, much faster growth is attributed to the Chinese market, which has both a massive infrastructure need, and a tendency to be wary of the leading Western vendors.     Source: OpenStack Gets Its Swagger Back

Battle of the Switches – Open Virtual Switch vs. Linux Bridge

Hits: 147Open Virtual Switch was initially conceived in a university environment, with a flow-based model providing the development primitive, and a central controller determining what those flows actually looked like. The use of OVS as a virtual switch in the IaaS market (and to be specific, in the OpenStack IaaS market) came about because the …

OVS-DPDK: Migrating to vhostuser socket mode in Red Hat OpenStack

Hits: 248The socket isn’t connected from  /var/log/libvirt/INSTANCE qemu-kvm: -chardev socket,id=charnet0,path=/var/lib/vhost_sockets/vhufa61fe7e-d0,server: info: QEMU waiting for connection on: disconnected:unix:/var/lib/vhost_sockets/vhufa61fe7e-d0,server   In order to understand the difference between the two modes and the advantage of moving to dpdkvhostuserclient mode, read the OvS documentation onvhostuser modes. In short, vhostuser allows Qemu to fetch/put network data to OvS-DPDK without overloading …

How to Simplify Container Image Management in Kubernetes with OpenShift Image Streams – Red Hat OpenShift Blog

Hits: 2478 Understanding and confuting Image Streams is central for getting Openshift to work as you need it to work, with images and code that you desire. Over the course of the past few weeks, I have been gathering feedback around Image Streams. This feature can cause a lot of misunderstanding and confusion, even for …

How to set a root password for your Openstack images

Hits: 290Login via console to your failed openstack deployment While installing Redhat Openstack on Baremetal with lots of complicated networking, you might need to access Linux via the console.  Redhat images do not come with a default username and password. So you need to configure the overcloud-full image to have a default password for root.​​​​​​​ $ …

6 Ways to Make Money With Advertising on Your Blog and the Websites To Help You

Hits: 193Is this  good way to monetize my Charming Blog There are times when Google Adsense becomes a less-than-ideal option for your blog. Here are some scenarios: Your Adsense account doesn’t get approved You’re not happy with what you’re making with Adsense and want to explore new ways Your account is disabled or banned for …

בלוגים – Test whether your Openshift is installed and working

Hits: 185Here are some common concepts  that need to be running on your systems, in order to be relavent: Openshift microservices docker kubernetes pods   Work with Docker as microservices saves compute recources, However, it requires re-thinking how development is done. Microservices also enable Continuous Integration of changes to large applications. Red Hat OpenShift is an …

Steve Bar Yakov Gindi Now Works for Octopus Computer Solutions

Hits: 196I started working at Octopus Computer Solutions Steve Bar Yakov Gindi has a new job. I am the Devops and Openstack/Openshift Expert. For a few months I have been working for Octopus Computer Solutions in Tel Aviv. I have been working with customers and in house with Open Source Red Hat Subscriptions software. I …