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Thomas Krafft

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Top Stories by Thomas Krafft

We are happy to announce that GridGain 4.2 is released! This release includes several new exciting feature as well as the host of performance optimizations that we’ve included. This release is 100% backward compatible with 4.x product line and we recommend anyone on 4.x version to update as soon as possible. Now – let’s talk about new features… Delayed Preloading In GridGain 4.2 we’ve introduced support for delayed preloading. Dmitriy Setrakyan wrote an excellent blog detailing this new functionality. Essentially, whenever a new node joins the grid or an existing node leaves the grid, cluster repartitioning happens. This basically means that, in case of new node, it has to take responsibility for some of the data cached on other nodes, and in case of node leaving the grid, other nodes have to take responsibility for the data cached on that node. Essentially this res... (more)

Micro Cloud in Your JVM with GridGain

One of the features in GridGain’s In-Memory Data Platform that often goes unspoken for is ability to launch multiple GridGain nodes in the single JVM. Now, as trivial as it sounds… can you start multiple JBoss or WebLogic or Infinisnap or Gigaspaces or Coherence or (gulp) Hadoop 100% independent runtimes in the single JVM? The answer is no. Even for a simple test run you’ll have to start multiple instances on your computer (or on multiple computers), and debug this via remotely connected debugger, different log windows, different configurations, etc. In one word – awkward… Not so... (more)

In-Memory Compute Grid… Explained.

Dmitriy Setrakyan provided an excellent explanation for In-Memory Data Grid (IMDG) in his blog http://gridgain.blogspot.com/2012/11/in-memory-data-grids-explained.html. I will try to provide a similar description for In-Memory Compute Grid (IMCG). PDF version of this article is available. IMCG – In-Memory Compute Grid One of the main ideas Dmitriy put forward is the importance of integration between in-memory storage (IMDG) and in-memory processing (IMCG) to be able to build truly scalable applications. Yet – the IMCG and its implementations are seen less frequently than IMDG ma... (more)

Insert Coins and Press Start

I’m at that critical point in the lifecycle of my consumer mobile and web software projects and ideas: I need to build something in order to get funding, but I need funding in order to build something. Ugh. I’ve gotten as far as I can in my own projects without developers or investors. This is a common problem, particularly for founders who aren’t able to write their own code, so I don’t feel too depressed right now. My ideas are solid. And I have 15+ years of experience in and around this space – enough to know the pitfalls and issues to avoid, and which questions to ask myself... (more)

Micro Cloud in Your JVM: Code Example

Few days ago I blogged about how GridGain easily supports starting many GridGain nodes in the single JVM – which is a huge productivity boost during the development. I’ve got a lot of requests to show the code – so here it is (next page). This is an example that we are shipping with upcoming 4.3 release (entire source code): import org.gridgain.grid.*; import org.gridgain.grid.spi.discovery.tcp.*; import org.gridgain.grid.spi.discovery.tcp.ipfinder.*; import org.gridgain.grid.spi.discovery.tcp.ipfinder.vm.*; import org.gridgain.grid.typedef.*; import javax.swing.*; import java... (more)