InfoQ Homepage Terracotta Content on InfoQ
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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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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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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.
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Clustering Lucene with TerraCotta
Engineers at TerraCotta have detailed a new way to cluster Lucene, the popular text search library from Apache. Their method involves implementing the Lucene RAMDirectory interface and using TerraCotta DSO to share the RAMDirectory across JVMs.
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Terracotta Releases Clustering for Spring
Terracotta, Inc. recently released their new Terracotta for Spring product which provides high-availability and high performance clustering to applications written using the Spring framework. Terracotta for Spring integrates at the configuration file level reducing the need for developers to make changes to their code to enable clustering support.
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Terracotta releases free 4 node Tomcat Session Clustering
JVM clustering vendor Terracotta has released for free use their Terracotta Sessions for Tomcat. The product is based on their distributed shared objects (DSO) product which uses a hub and spoke architecture and can synchronize changes across nodes at the field level (instead of serialization). The license allows projects with up to 4 nodes in their cluster to use it for free.