InfoQ Homepage DevOps Content on InfoQ
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Ehcache 2.2 Supports Terabyte Cache and LDAP Authentication
The latest version of open source caching framework Ehcache supports terabyte cache and JAAS authentication with LDAP integration. Terracotta announced last week the general availability of Ehcache 2.2 version as part of Terracotta 3.3 release. The new version also includes a management console that provides visibility and control of run-time caching environment, for developers and operators.
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LinkedIn's Data Infrastructure
Jay Kreps of LinkedIn presented some informative details of how they process data at the recent Hadoop Summit. Kreps described how LinkedIn crunches 120 billion relationships per day and blends large scale data computation with high volume, low latency site serving.
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Mono Compatibility Report for Microsoft Biology Foundation
Microsoft Biology Foundation describes itself as “a language-neutral bioinformatics toolkit built as an extension to the Microsoft .NET Framework, initially aimed at the area of Genomics research.” Currently it targets .NET 4.0, but support for other platforms is planned.
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Agile Project Leaders Network Reorganizes
The APLN is an organization that supports and helps to organize Agile user groups and an Agile-related conference called the Leadership Summit. The non-profit group has recently elected new board members, realigned its focus, and announced new initiatives and plans.
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Nokia Donates Mobile Runtime for Java Applications (JRT) to the Symbian Foundation Under EPL
Nokia has re-licensed its Mobile Runtime for Java Applications (JRT) under the Eclipse Public License (EPL). The Symbian Platform, still by far the largest smartphone OS, was itself released under EPL in February.
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WebSphere 7 Feature Pack Supports OSGi-based Application Deployment and SCA Integration
WebSphere Application Server V7 Feature Pack for OSGi Applications and Java Persistence API 2.0 offers a standards-based implementation of OSGi Blueprint Container specification and JPA 2.0. It also provides an optional feature to deploy and manage applications as versioned OSGi bundles. IBM recently announced the GA release of the feature pack which is based on Apache projects Aries and OpenJPA.
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Measuring and Comparing the Performance of 5 Cloud Platforms
Bitcurrent and Webmetrics have run a number of tests for a month on 5 different cloud platforms - Amazon, Google, Rackspace, Salesforce.com, and Terremark -, attempting to measure the performance of each platform. One of their conclusions is that each platform works better for different application types.
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Apache FOP 1.0 released
On Wednesday, the Apache Foundation announced the release of Apache FOP 1.0, a project that has been a decade in the making. Apache FOP, or Formatting Objects Processor, provides a means to turn XML documents into a variety of print-ready formats, such as PDF, PostScript, or even PNG
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Using the Cloud: Two Examples
Most of the discussion about cloud computing has focused on tools, providers, and security. While this focus is appropriate for an emerging technology, it becomes easier to recognize the value of cloud computing when you have actual application examples, or case studies. This month IBM announced two such applications: a development-and-test cloud, and an animation rendering cloud.
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Rearchitecting Applications for the Cloud
While there is an overall consensus on the business benefits of migrating to the cloud, the question on rearchitecting applications for the cloud is still heavily debated on the Internet.
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DataMapper Reaches 1.0 Milestone
DataMapper, an Object Relational Mapper (ORM) for Ruby, arrived at a milestone recently reaching 1.0 status. The release, announced during RailsConf 2010, and coinciding with Dirkjan Bussink's presentation at the conference on the subject.
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Does the Cloud Need Server Virtualization?
Simeon Simeonov wrote an essay on the latest strategy of VMWare in the wake of the SpringSource Acquisition 12 months ago. He contends that if Server Virtualization was a key enabler of Cloud Computing, it's days might be counted as VMware CTO Steve Herrod explains “We are committed to making Spring the best language for cloud applications, even if that cloud is not based on VMware vSphere.”
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Rackspace Has Open Sourced Its Cloud Platform
Rackspace has opened its cloud computing platform source code under Apache 2.0 license as part of OpenStack initiative. NASA is contributing with technology powering NASA Nebula Cloud Platform.
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EF Feature CTP 4 Brings Code First Updates and Productivity Improvements
Entity Framework Feature CTP 4 recently released updates the Code First programming model with new code conventions and data annotations, and adds two new types, DbContext and DbSet<TEntity>, providing easy entity model setup using Code First.
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Facebook on Hadoop, Hive, HBase, and A/B Testing
The Hadoop Summit of 2010 included presentations from a number of large scale users of Hadoop and related technologies. Notably, Facebook presented a keynote and details information about their use of Hive for analytics. Mike Schroepfer, Facebook's VP of Engineering delivered a keynote describing the scale of their data processing with Hadoop.