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Scale Out with Hypertable | Linux Magazine
Introducing Hypertable, an open source, distributed database that’s modeled after Google’s Bigtable, but available for anyone to use. Scale databases to meet any need.
Munin - Trac
Munin the monitoring tool surveys all your computers and remembers what it saw. It presents all the information in graphs through a web interface. Its emphasis is on plug and play capabilities. After completing a installation a high number of monitoring plugins will be playing with no more effort.
Using Munin you can easily monitor the performance of your computers, networks, SANs, applications, weather measurements and whatever comes to mind. It makes it easy to determine "what's different today" when a performance problem crops up. It makes it easy to see how you're doing capacity-wise on any resources.
Munin uses the excellent RRDTool (written by Tobi Oetiker) and the framework is written in Perl, while plugins may be written in any language. Munin has a master/node architecture in which the master connects to all the nodes at regular intervals and asks them for data. It then stores the data in RRD files, and (if needed) updates the graphs. One of the main goals has been ease of creating new plugins (graphs).
Cacti: The Complete RRDTool-based Graphing Solution
Cacti is a complete network graphing solution designed to harness the power of RRDTool's data storage and graphing functionality. Cacti provides a fast poller, advanced graph templating, multiple data acquisition methods, and user management features out of the box. All of this is wrapped in an intuitive, easy to use interface that makes sense for LAN-sized installations up to complex networks with hundreds of devices.
Ganglia and Nagios, Part 2: Monitor enterprise clusters with Nagios
This is the second article in a two-part series that looks at a hands-on approach to monitoring a data center using the open source tools Ganglia and Nagios. In Part 2, learn how to install and configure Nagios, the popular open source computer system and network monitoring application software that watches hosts and services, alerting users when things go wrong. The article also shows you how to unite Nagios with Ganglia (from Part 1) and add two other features to Nagios for standard clusters, grids, and clouds to help with monitoring network switches and the resource manager.
Ganglia and Nagios, Part 1: Monitor enterprise clusters with Ganglia
This is the first article in a two-part series that looks at a hands-on approach to monitoring a data center using the open source tools Ganglia and Nagios. In Part 1, see how to install and configure Ganglia, the scalable, distributed monitoring system for high-performance clusters based on a hierarchical design. Also learn how to add more monitoring capability by writing Ganglia plug-ins and by enabling external-source spoofing.
Building Scalable Web Sites | O'Reilly Media
This comprehensive guide covers the design of software and hardware systems for web applications. Using scores of examples and leading-edge tips, it details proven methods for scaling web applications to millions of users. Topics include application architecture, development practices, technologies, Unicode, and general infrastructure work. Ideal for anyone ready to realize the cost and performance benefits available to web applications today.
The Art of Capacity Planning | O'Reilly Media
Web-based companies live or die by the ability to scale their infrastructure to accommodate increasing demand. This book is a hands-on and practical guide to planning for such growth, with many techniques and considerations to help you plan, deploy, and manage web application infrastructure. Written by the manager of data operations for the world-famous photo-sharing site Flickr.com, the author offers advice based on years of valuable experience.
pgpool-II Tutorial
Welcome to the Tutorial for pgpool-II. From here, you can learn how to install, setup, and run parallel queries or do replication using pgpool-II.
Clustering and Load Balancing in Tomcat 5, Part 2 - O'Reilly Media
This is the second part of a series on clustering and load balancing in Tomcat 5 server. In part 1, I provided an overview of large-scale J2EE system design as well as various factors to be considered when designing the system for scalability and high availability. I also discussed Tomcat's support for clustering, load-balancing, fault-tolerance, and session-replication capabilities. In this part, we'll cover the architecture of a proposed cluster setup and go over the installation and configuration details in deploying the cluster (by running multiple Tomcat server instances).
Session Replication in Tomcat 5 Clusters, Part 1 - O'Reilly Media
The Tomcat 5 server provides built-in support for clustering and session replication. This first article in this series will provide an overview of session persistence and the inner works of session replication in Tomcat clusters. I will discuss how the session replication process works in Tomcat 5 and the replication mechanisms available for session persistence across the cluster nodes. In part two, I will discuss the details of a sample Tomcat cluster setup with session replication enabled, and compare different replication scenarios.
Amazon Web Services (EC2 & S3) - The Future of Data Centre Computing? Part 2 at DeCare Systems Ireland Blog
Since my last blog entry on AWS, there has been a number of interesting developments. Firstly, I said before that there were no documented success stories on EC2; well now there are! This is a clear indication that the EC2 community is alive and kicking a
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