InfoQ Homepage Clustering & Caching Content on InfoQ
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Presentation: Cluster your JVM to simplify application architecture
Open Terracotta is an open-source, highly scalable, JVM-level clustering solution. As well as being a drop-in replacement for Tomcat Clustering, it can transparently cluster POJOs and Spring beans. This presentation will be an in-depth case study of a small mobile application built using Terracotta clustering.
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Article: Using ETags to Reduce Bandwith & Workload with Spring & Hibernate
Gavin Terrill explores one of the lessor known facilities available to web developers, the humble "ETag Response Header", and how to integrate its use in a Spring and Hibernate based web app to improve application performance and scalability.
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Using memcached with ASP.NET
Instead of ASP.Net's built-in caching, some .NET developers are turning to memcached, is a distributed memory caching system originally by Danga Interactive for LiveJournal.
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A Real World Example of Using Terracotta: Clustering RIFE
Terracotta's Jonas Bonér recently detailed how he and Geert Bevin (who was recently hired by Terracotta) clustered the RIFE web application framework. The article provides valuable insight into RIFE's continuations implementation as well as some of the challenges in clustering a non-trivial application like RIFE.
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Terracotta improves failover support, adds clustering for 5 more frameworks
JVM heap-level clustering solution Terracotta released v2.3 yesterday, adding TCP/IP-based active/passive failover, cluster-membership events, and a new pre-configured module system for quick clustering Tomcat, Weblogic, Spring, Lucene, RIFE, Struts 1, Cglib, and iBatis. Jetty has been working on clustering Ajax cometd apps. RIFE's Geert Bevin is also now working for Terracotta.
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Wicket support on Terracotta nears completion
The Wicket and Terracotta teams have Wicket up and running on Open Terracotta. Support is still not complete, but most of the examples that ship with Wicket now run without any problems. As soon as they have all the kinks out, Terracotta will put the configuration into a Terracotta config module.
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Article: Web Apps with Spring Web Flow and Terracotta for Spring
In this article, Jonas Boner and Eugene Kuleshov give an overview of Spring Web Flow and Terracotta for Spring, and after that show you how you can use these technologies together to enter a new dimension in writing stateful, conversational, scalable and highly available web applications.
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MapReduce Gaining Traction: Tools Plugin Released for Eclipse and Amazon EC2 Support
IBM's Alphaworks website has released an Eclipse plugin to simplify the development of applications using Hadoop, the open source Java MapReduce framework. Work has also been done to easily allow Hadoop applications to run on Amazon's EC2 and S3 platforms for processing and storage.
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Gemstone, Tangosol Offering Native .NET Clients to Distributed Data Caches
Gemstone last month released its Gemfire distributed data cache offering with native C++ and .NET cache clients. Tangosol last week also released Coherence for .NET which provides a native C# client to access data in Coherences' data grid. Both companies have Java-based distributed cache solutions with .NET support, frequently used by projects with .NET client front-ends with Java backends.
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Article: Introduction to OpenTerracotta
OpenTerracotta is an open source enterprise-class JVM clustering solution that can take multi-threaded single-JVM apps and have them run across multiple JVMs with no code changes. Orion Letizi goes super-indepth on Terracotta and how it works, explaining how to do session replication, distributed caching, master/worker, and more.
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Using Terracotta for clustering or as a POJO-based Data Grid
Two recent articles discuss Terracotta DSO. The first is an overview piece that walks through using Terracotta in a simple example. The second is an article describing how to use Terracotta to build a POJO-based Data Grid.
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Presentation: Distributed Caching Essential Lessons
Cameron Purdy presents on improving performance and scalability of applications through the use of caching to reduce load on the database teir and & clustered caching to provide transparent fail-over by reliably sharing live data among clustered JVMs.
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GigaSpaces 5.2: Adds support for Spring, .NET, local-views
GigaSpaces this month released version 5.2 of their in-memory datagrid and space-based architecture suite, now bringing it's capabilities to the .NET world, as well as adding support for Spring, SQL-based continuous queries and local-views, and special support for "slow consumers". InfoQ spoke to GigaSpaces CTO Nati Shalom to find out more.
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Tangosol Coherence Data Grid Adds Enhanced Spring Support
Tangosol has announced Coherence Data Grid for Spring which simplifies integration between Spring and the Coherence Data Grid. Coherence Data Grid for Spring will feature a new type of Spring component, the Spring Data Grid Bean. Spring Beans may be automatically and transparently managed in highly available data grids built on top of Coherence.
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Terracotta open sources JVM clustering
Terracotta today open sourced their JVM clustering solution under MPL-based license. Terracotta turns single-node, multi-threaded apps into distributed multi-node apps with no code changes. Also open sourced are customizations for clustering Spring Application contexts and HTTPSessions. The VC-backed Terracotta is switching from a commercial license model to a service & support model.