Federico Feroldi’s blog | by Federico Feroldi
Aug
27
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The Grid Appliance is a self-configuring Virtual Machine appliance that is used to create ad-hoc pools of computer resources both within a local-area and across wide-area networks to execute high-throughput, long-running jobs.\n
(tags: virtualization software grid distributed cluster condor parallel mapreduce linux hadoop opensource p2p appliance)\n
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The purpose of this tutorial is to introduce you to the usage of the an extension of the Grid appliance which integrates the Hadoop file system and map/reduce framework for data-intensive parallel computing.\n
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Aug
26
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In this article, we shall see how easy it is to connect to a database (MySQL) using ActiveRecord and a JDBC driver using JRuby.\n
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Spock Proxy supports range-based horizontal paritioning of a large MySQL database. The proxy intercepts SQL queries from the client, sends queries to the correct databases based on how the database is partitioned, then aggregates the results from each database and returns them to the client as a regular MySQL result set.\n
(tags: sql sharding scalability rails proxy partitioning mysql grid performance scaling ruby rubyonrails activerecord)\n
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(tags: xp userstory userstories user-stories tips story scrum software projectmanagement project estimation lean best-practices)\n
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Cassandra is a distributed storage system for managing structured data that is designed to scale to a very large size across many commodity servers, with no single point of failure.\n
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Aug
25
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I found this solution on ubuntu forum. It is very easy to download the sources and compilate your own version althought I agree it would be more transparent if somebody just uppdate the sources on synaptic.\n\nBut the kernel is quite often updated so instead of waiting I prefer to use this method\n
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JPPF is an open source Grid Computing platform written in Java that makes it easy to run applications in parallel, and speed up their execution by orders of magnitude. Write once, deploy once, execute everywhere!\n
(tags: tools scalability programming processing performance parallel software framework java distributed)\n
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Scaling Out\n
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NeverBlock is a Ruby library that allows developers to write non-blocking, concurrent code in a transparent manner. Meaning that you will keep coding in your traditional ways while you get the benefit of non-blocking IO operations.\n
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There still seems to be confusion about the relative simplicity or difficulty of deploying a Rails app using JRuby.\n
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In this paper, we show how to leverage largely commodity Ethernet switches to support the full aggregate bandwidth of clusters consisting of tens of thousands of elements.\n
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Aug
24
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Hypertable is an open source project based on published best practices and our own experience in solving large-scale data-intensive tasks.\n
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A robust plug-in that brings Hadoop support to the Eclipse platform. Features include server configuration, support for launching MapReduce jobs and browsing the distributed file system. The following Plug-in and Eclipse links point to websites external to Google.\n
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[Apache-SVN] Index of /lucene/mahout/trunk/core/src/main/java/org/apache/mahout/cf/taste/recommender
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(tags: java hadoop mahout algorithm recommendation recommender recommendation-engine distributed source mapreduce thesis)\n
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Mahout's goal is to build scalable, Apache licensed machine learning libraries. Initially, we are interested in building out the ten machine learning libraries detailed in http://www.cs.stanford.edu/people/ang//papers/nips06-mapreducemulticore.pdf using Hadoop. While these algorithms are our initial focus, we welcome contributions of other machine learning approaches.\n
(tags: research search mapreduce machine learning ai hadoop algorithm algorithms apache recommendation)\n
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Since we know we’ll be doing more of this, we created our own Photoshop file that has a fairly comprehensive library of assets – all fully editable.\n
(tags: wireframe webdesign web ui tools toolkit templates template iphone apple mockup psd photoshop)\n
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