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| <section class="blog__header post_page__header"> |
| <a href="/blog/">← Apache Ignite Blog</a> |
| <h1>Apache Ignite 2.0: Redesigned Off-heap Memory, DDL and Machine Learning</h1> |
| <p> |
| May 5, 2017 by <strong>Denis Magda: </strong><a href="http://www.facebook.com/sharer.php?u=https://ignite.apache.org/blog/undefined">Facebook</a><span>, </span |
| ><a href="http://twitter.com/home?status=Apache Ignite 2.0: Redesigned Off-heap Memory, DDL and Machine Learning%20https://ignite.apache.org/blog/undefined">Twitter</a> |
| </p> |
| </section> |
| <div class="blog__content"> |
| <main class="blog_main"> |
| <section class="blog__posts"> |
| <article class="post"> |
| <div> |
| <p> |
| We released the long-awaited Apache Ignite version 2.0 on May 5. The community spent almost a year incorporating tremendous changes to the legacy Apache Ignite 1.x architecture. And all of that effort paid off. Our |
| collective blood, sweat (and perhaps even a few tears) opened up new and exciting opportunities for the Apache Ignite project. |
| </p> |
| <p>Have I piqued your interest about this new release yet? Let's walk through some of the main new features that have appeared under the hood of Apache Ignite 2.0.</p> |
| <!-- end --> |
| <h3>Reengineered Off-Heap Memory Architecture.</h3> |
| <p> |
| The platform’s entire memory architecture was reengineered from scratch. In a nutshell, all of the data and indexes are now stored in a completely new manageable off-heap memory that has no issues with memory |
| fragmentation, accelerates SQL Grid significantly and helps your application easily tolerate Java GC pauses. |
| </p> |
| <p> |
| Take a peek at the illustration below and try to guess what’s changed. Afterward, please read <a href="https://apacheignite.readme.io/docs/page-memory" target="_blank">this documentation</a> to see if your |
| eye caught everything that’s new. |
| </p> |
| <p><img src="https://files.readme.io/0bf1bbf-Page-Memory-Diagram-v3.png" /></p> |
| <p>Here’s something extremely noteworthy: the architecture now integrates seamlessly with disk drives. Why do we care about this? Stay tuned!</p> |
| <p></p> |
| <h3>Data Definition Language.</h3> |
| <p></p> |
| <p> |
| This release introduces support for Data Definition Language (DDL) as a part of its SQL Grid functionality. Now you can define -- and, what’s more important, alter -- indexes in runtime without the need to restart |
| your cluster. Apache Ignite users have long awaited this feature! Even more exciting news: users can leverage this with standard SQL commands like CREATE or DROP index. This is only the beginning! Go to |
| <a href="https://apacheignite.readme.io/docs/distributed-ddl" target="_blank">this page</a> to learn more about current DDL support. |
| </p> |
| <p></p> |
| <h3>Machine Learning Grid Beta - Distributed Algebra.</h3> |
| <p></p> |
| <p> |
| Apache Ignite is about more than in-memory storage. And it’s not just one more product for distributed computations or real-time streaming. It's much, much more than that. It's a hot blend of |
| well-integrated distributed and highly concurrent modules that turned Apache Ignite into what is today: A robust data-fabric and framework with the goal of making your application thrive and outperform even the best of |
| expectations. |
| </p> |
| <p>But there was one thing missing until now. Drumroll, please: machine-learning support!</p> |
| <p> |
| With Apache Ignite 2.0 you can check project’s own <a href="https://apacheignite.readme.io/docs/machine-learning" target="_blank">distributed algebra implementation</a>. The distributed algebra is the foundation of |
| the entire component. And soon you can expect to get distributed versions of widely used regression algorithms, decision trees and more. |
| </p> |
| <p></p> |
| <h3>Spring Data Integration.</h3> |
| <p></p> |
| <p> |
| <a href="https://apacheignite-mix.readme.io/docs/spring-data" target="_blank">Spring Data integration</a> allows the interaction of an Apache Ignite cluster using the well-known and highly adopted Spring Data Framework. |
| You can connect to the cluster by means of Spring Data repositories and start executing distributed SQL queries as well as simple CRUD operations. |
| </p> |
| <p></p> |
| <h3>Rocket MQ</h3> |
| <p></p> |
| <p>Are you using Rocket MQ in your project and need to push data from the Rocket to Ignite? <a href="https://apacheignite-mix.readme.io/docs/rocketmq-streamer" target="_blank">Here is</a> an easy solution.</p> |
| <p></p> |
| <h3>Hibernate 5.</h3> |
| <p></p> |
| <p> |
| Hibernate L2 cache users have been anticipating support of Hibernate 5 on Apache Ignite for quite a long time. Apache Ignite 2.0 grants |
| <a href="https://apacheignite-mix.readme.io/docs/hibernate-l2-cache" target="_blank">this desire</a>. The integration now supports Hibernate 5 and contains a number of bug fixes and improvements. |
| </p> |
| <p></p> |
| <h3>Ignite.NET</h3> |
| <p></p> |
| <p> |
| Ignite.NET has been enhanced with an addition of a <a href="https://apacheignite-net.readme.io/docs/plugins" target="_blank">plugin system</a> that allows the writing and embedding 3rd party .NET components into |
| Ignite.NET. |
| </p> |
| <p></p> |
| <h3>Ignite.C++</h3> |
| <p></p> |
| <p>The Ignite.C++ part of the community finally came up with a way to execute arbitrary C++ code on remote cluster machines.</p> |
| <p> |
| This approach was initially tested for <a href="https://apacheignite-cpp.readme.io/docs/continuous-queries" target="_blank">continuous queries</a>. You can now register continuous queries' remote filters on any |
| cluster node you like. Going forward you can expect support for the Ignite.C++ compute grid and more. |
| </p> |
| <p> |
| Want to learn more? Please join me June 7 for a <a href="https://www.gridgain.com/resources/webinars/apacher-ignitetm-whats-new-version-20" target="_blank">webinar</a> titled, “Apache® Ignite™: What’s |
| New in Version 2.0.” I hope to see you there! |
| </p> |
| <p> |
| P.S. Just in case you can’t wait until June… <a href="https://ignite.apache.org/releases/2.0.0/release_notes.html" target="_blank">here's</a> a full list of the changes inside Apache Ignite 2.0. |
| </p> |
| </div> |
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