From time to time, I like to visit NoSQL conferences and talk to people from the community to see how they solve their problems. I guess I find it more neutral to do this sometimes, as opposed to speaking to our customers, as they might be biasedJ. In any case, [...]
Moving away from Mainframe to Commodity - How? Mainframe (Z/OS) based systems running COBOL programs are legacy systems in many organizations. These are planned to be replaced with low cost commodity servers running Java or .Net based systems, saving the cost of the expensive mainframe MIPS and COBOL-based development. Using [...]
When running system in production, the last thing you want to do is to shutdown the system. This could happen when: - You need to replace one of the machines running the system. - You need to upgrade one of the machines running the system. - You need to increase [...]
I recently read a book called: "Physics of the Impossible" by the theoretical physicist Michio Kaku. Dr. Kaku lists "Possible Impossibilities" and classifies these into different categories where all these "impossibilities" may happen in the near/distant future. When talking about "zero latency", I consider this something we can achieve today. The [...]
In my previous post Concurrency 101 I touched on some of the key terms that often comes up when dealing with multi-core concurrency. In this post I'll cover the difference between multi-core concurrency that is often referred to as Scale-Up...
Usually you index and execute queries using primitive fields (long, float, string, etc). The fields may be within the root level of the space object, or embedded within nested objects within the space object. You may construct a query using a template object or SQL to specify the criteria you [...]
Even though 7.0.1 is considered a minor version, when it comes to XAP.NET, it offers very powerful set of new features which improve the initial user experience, better monitoring capabilities and most importantly, exposing remote services over the grid. I feel very confident by saying that 7.0.1 XAP.NET offers a [...]
The Master-Worker Pattern (sometimes called Master-Slave pattern) is used for parallel processing. It follows a simple approach that allows applications to perform simultaneous processing across multiple machines or processes via a Master and multiple Workers. In GigaSpaces XAP, you can implement the Master-Worker pattern using several methods: - Task Executors [...]
Eric Lai published a provoking article on Computerworld magazine titled “No to SQL? Anti-database movement gains steam” where he pointed to many references in which different Internet-based companies chose an alternative approach to the traditional SQL database. The write-up was...
7.0 XAP.NET GA will provide a new powerful capability, known as space tasks. A space task is a custom user code representing a logical task that is executed at the space behind the proxy and returns its result to the invoker. The task also receives an embedded proxy to the [...]
Ultra-Scalable and Blazing-Fast: The Sun Fire x4450-Intel 7460-GigaSpaces XAP Platform – 1.8 million operations/sec!
Introduction Over the past several years highly concurrent applications have faced some serious challenges when trying to scale on multi core machines. GigaSpaces scale-out-application server aims to solve this problem by freeing the user from dealing with the need to handle concurrency while building his distributed application. For the last [...]
I’ve been reading this nice post from Daniel Gradecak's blogs. He is asking interesting questions about how architects building their systems and how JavaSpaces and SBA are used when designing distributed systems. See my comment as a feedback to his questions. Thank you Daniel for this post! Shay
GigaSpaces XAP.NET 6.6.2 comes with out of the box event listener container abstraction that decouples the business logic implementation from the underlying data grid implementation. This allows simpler and faster processing unit implementation, without having to implement the event triggering logic by your self. For those of you who are [...]
XAP.NET 6.6 has been recently released, I’m very happy to introduce this new and very cool version. It’s the first time that XAP.NET is a completely stand alone version. The .msi installation provides a fluent self explanatory installation experience. Once installation is completed you get a fully configured ready to [...]
A common issue I’m facing recently is how to integrate existing tier-based applications with GigaSpaces persistency service, AKA persistency as a service (Paas) or mirror . The motivation is often a result of the acknowledgment that a standard tier based application fails to scale when facing the database throughput limitation. [...]