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| <h2 class="tagline"><em>Performance</em> is key. <em>Consistency</em> is a must.</h2> |
| <p class="description">Providing low latency, high concurrency data management solutions since 2002.<br/> |
| <br/>Build high-speed, data-intensive applications that elastically meet performance requirements at any scale.<br/> |
| Take advantage of Apache Geode's unique technology that blends advanced techniques for data replication, partitioning and distributed processing. |
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| <br/><br/> |
| Apache Geode provides a database-like consistency model, reliable transaction processing and a shared-nothing architecture to maintain very low latency performance with high concurrency processing.<br/> |
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| <h3>Replication and Partitioning</h3> |
| <p>Data can easily be partitioned (sharded) or replicated between nodes allowing performance to scale as needed. Durability is ensured through redundant in-memory copies and disk-based persistence.</p> |
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| <h3>Persistence</h3> |
| <p>Super fast write-ahead-logging (WAL) persistence with a shared-nothing architecture that is optimized for fast parallel recovery of nodes or an entire cluster.</p> |
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| <h3>Performance</h3> |
| <p>Linear-scaling low latency for transactions, reads, writes and query processing of indexed or unindexed data.</p> |
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| <h3>In-Memory Storage</h3> |
| <p>Blazing fast in-memory storage optimized for large heaps, with the option of using off-heap storage, compression and features such as disk-overflow, eviction and expiration of data.</p> |
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| <h3>Functions</h3> |
| <p>Distributed location-aware user functions can be deployed and executed by the same nodes storing relevant sharded data for fast parallel processing. Failed operations can be retried on replicant nodes.</p> |
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| <h3>Transactions</h3> |
| <p>ACID distributed transactions support efficient and safe coordinated operations on colocated data. Transactions can be initiated or suspended by either a client or a server.</p> |
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| <h3>OQL and Indexes</h3> |
| <p>Object Query Language allows distributed query execution on hot and cold data, with SQL-like capabilities, including joins.<br/> |
| Multiple kinds of indexes can be defined and consistently maintained across the cluster.</p> |
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| <h3>Events</h3> |
| <p>Clients can be notified about server-side data events, and servers can react synchronously or asynchronously with guaranteed delivery of ordered events.</p> |
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| <h3>Clustering</h3> |
| <p>Highly scalable, robust advanced clustering technology with failure detection, dynamic scaling, and network-partition detection algorithms.</p> |
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| <h3>Multi-Cluster</h3> |
| <p>Geode clusters can be replicated over WAN in various topologies: active-active, active-passive, ring, hub-spoke, star, etc.</p> |
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| <h3>Continuous Query</h3> |
| <p>Clients can stay up to date by registering OQL queries with the Geode servers, making event-driven applications possible.</p> |
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| <h3>Clients</h3> |
| <p>Clients are available for Java, C++, and C# .NET Framework. A REST API is available for all other languages.</p> |
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| <h3>Adapters</h3> |
| <p>Geode can be used as a drop-in replacement for memcached, allowing use of Geode's server-side features like multi-cluster replication.</p> |
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| And much more... Interested? You can check our <a href="https://cwiki.apache.org/confluence/display/GEODE/Index#Index-Geodein5minutesGeodein5minutes" target="_blank" class="btn btn-inverse btn-lg">Geode in 5 minutes tutorial</a> <span class="avoidwrap">, ask a question on the <a href="/community/" class="btn btn-inverse btn-lg">Mailing lists</a> or <a href="http://stackoverflow.com/search?q=Apache%20Geode" class="btn btn-inverse btn-lg">StackOverflow</a></span> |
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| <h2>About the Project</h2> |
| <p>Apache Geode is a data management platform that provides real-time, consistent access to data-intensive applications throughout widely distributed cloud architectures.</p> |
| |
| <p>Geode pools memory, CPU, network resources, and optionally local disk across multiple processes |
| to manage application objects and behavior. It uses dynamic replication and data partitioning |
| techniques to implement high availability, improved performance, scalability, and fault |
| tolerance. In addition to being a distributed data container, Apache Geode is an in-memory data |
| management system that provides reliable asynchronous event notifications and guaranteed message |
| delivery.</p> |
| |
| <p>Apache Geode is a mature, robust technology originally developed by GemStone Systems. |
| Commercially available as GemFire™, it was first deployed in the financial sector as the transactional, low-latency data engine used |
| in Wall Street trading platforms. |
| Today Apache Geode technology is used by hundreds of enterprise customers for high-scale business applications that must meet low latency and 24x7 availability requirements.</p> |
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