Hazelcast
Hazelcast IMDG (In Memory Data Grid) is a Java-based NoSQL open-source distributed in-memory data store and computation platform. It spreads and replicates data across a cluster of machines, therefore ensuring high availability, fault-tolerance and painless horizontal scalability. Hazelcast provides APIs for many of the most commonly used programming languages, including Java, C++, Python, Go and others. It can also be deployed on several different cloud environments, thanks to its multiple discovery plugins. Hazelcast's most common use cases include database caching, in-memory data computing and in-memory messaging.
History
Hazelcast is both the name of the product and the company that created it. The start-up was founded in 2008 by Talip Ozturk and Fuad Malikov. The first open-source implementation of Hazelcast was released at the beginning of 2009. Several updated versions have been made public since then, the latest one dating from February 4, 2020.
Storage Architecture
Hazelcast is a fully in-memory distributed data store. Data is kept on the heap, in a serialized form (using the java.io.Serializable interface). Hazelcast was not initially build to persist. However, the current Entreprise version of the product implements the "Hot Restart Persistence" feature, which provides faster restarts by storing cluster member states on disk. Hazelcast also supports integration with new persistent memory technologies such as Intel Optane.
System Architecture
Hazelcast can be deployed on a single machine or a clusters, following a peer-to-peer model. There is no single point of failure. Every member of the cluster stores equal amount of data ( a partition) and performs equal amount of processing/computation. Partitions are also replicated across cluster members and follow a primary-copy model.
Derivative Systems
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Website
Source Code
https://github.com/hazelcast/hazelcast/
Tech Docs
Developer
Hazelcast
Country of Origin
Start Year
2008