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Linux Building a Virtual Cluster with Xen
Post date: September 28, 2006, 04:09 Category: Emulation Views: 3617 Comments: 0
Tutorial quote: It is a common practice to have development and test servers for each production server, so that you can experiment with changes without the fear of breaking anything important, but this is usually not feasible with clusters. So how do you try that new version of your favorite program before committing it to the production cluster? A cheap and convenient possibility is to build a virtual cluster.

Thanks to the Xen virtual machine monitor, you can create a number of virtual machines, all running simultaneously in your computer, install different operating systems in them, or just different configurations, and connect them via (virtual) network cards. Xen is a terrific tool for building virtual Beowulf clusters. It can prove useful when learning or teaching about clusters or for testing new features/software without the fear of causing major damage to an existing cluster.
Linux Building a Linux virtual server
Post date: June 9, 2005, 14:06 Category: Software Views: 1373 Comments: 0
Tutorial quote: With the explosive growth of the Internet, the workload on servers providing Web, email, and media services has increased greatly. More and more sites are being challenged to keep up with the growing demands and are employing several techniques to avoid overloading their servers. Building a scalable server on a cluster of computers is one of the solutions that is being effectively put to use. With such a cluster, the increasing requests can be easily managed by simply adding one or more new servers to the existing cluster as required. In this article we will look at setting up one such scalable, network load-balancing server cluster using a virtual server via the Linux Virtual Server Project.
Linux Building a Linux Cluster, Part 2
Post date: April 18, 2005, 03:04 Category: Network Views: 1260 Comments: 0
Tutorial quote: In this installment, we consider the what of cluster building: the hardware and software components that make up a Linux cluster, and some ways to think about integrating them into a solution for your environment.
Linux Building a Linux Cluster, Part 3: How To Get Started
Post date: April 25, 2005, 14:04 Category: Network Views: 1125 Comments: 0
Tutorial quote: In the previous two articles in this series, we examined some of the whys and whats of building Linux clusters. This article concludes our series by concentrating on the hows of cluster building. We've seen that a clustered approach to certain computing solutions can save lots of money in hardware and support costs. Now our job is to produce a method of building clusters that's repeatable and predictable—we don't want to give back our hard-won savings in project cost overruns.
Fedora+Core Building a Linux cluster on a budget
Post date: November 18, 2005, 19:11 Category: Network Views: 2107 Comments: 0
Tutorial quote: So you need a lot of computing power but don't want to spend tens of thousands of dollars on a commercial cluster? Or maybe you just have a lot of machines sitting idle that you would like to put to good use? You can build a powerful and scalable Linux cluster using only free software and off-the-shelf components. Here's how.
Debian Xen Cluster Management With Ganeti On Debian Etch
Post date: September 16, 2007, 21:09 Category: Miscellaneous Views: 1396 Comments: 0
Tutorial quote: Ganeti is a cluster virtualization management system based on Xen. In this tutorial I will explain how to create one virtual Xen machine (called an instance) on a cluster of two physical nodes, and how to manage and failover this instance between the two physical nodes.
Debian Xen Cluster Management With Ganeti On Debian Lenny
Post date: March 3, 2009, 12:03 Category: Installing Views: 1635 Comments: 0
Tutorial quote: Ganeti is a cluster virtualization management system based on Xen. In this tutorial I will explain how to create one virtual Xen machine (called an instance) on a cluster of two physical nodes, and how to manage and failover this instance between the two physical nodes.
Debian How To Set Up A Load-Balanced MySQL Cluster With MySQL 5.1
Post date: June 17, 2008, 09:06 Category: Installing Views: 1482 Comments: 0
Tutorial quote: This tutorial shows how to configure a MySQL 5.1 cluster with five nodes: 1 x management, 2 x storage nodes and 2 x balancer nodes. This cluster is load-balanced by an Ultra Monkey package which provides heartbeat (for checking if the other node is still alive) and ldirectord (to split up the requests to the nodes of the MySQL cluster).
Linux Gnu Queue: Linux Clustering Made Easy
Post date: December 22, 2005, 19:12 Category: System Views: 1310 Comments: 0
Tutorial quote: GNU Queue makes it easy to cluster Linux workstations. If you already know how to control jobs running on your local machine, you already know how to control remote jobs using GNU Queue. You don't even need special privileges to install and run GNU Queue on your cluster--anyone can do it. Once you've discovered how incredibly easy it is to cluster Linux environments with GNU Queue, you'll wonder why organizations continue to spend so much money on comparatively hard-to-cluster Windows NT environments.
Debian How To Set Up A Load-Balanced MySQL Cluster
Post date: March 31, 2006, 19:03 Category: Software Views: 1900 Comments: 0
Tutorial quote: This tutorial shows how to configure a MySQL 5 cluster with three nodes: two storage nodes and one management node. This cluster is load-balanced by a high-availability load balancer that in fact has two nodes that use the Ultra Monkey package which provides heartbeat (for checking if the other node is still alive) and ldirectord (to split up the requests to the nodes of the MySQL cluster).

In this document I use Debian Sarge for all nodes. Therefore the setup might differ a bit for other distributions. The MySQL version I use in this setup is 5.0.19. If you do not want to use MySQL 5, you can use MySQL 4.1 as well, although I haven't tested it.

This howto is meant as a practical guide; it does not cover the theoretical backgrounds. They are treated in a lot of other documents in the web.
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