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CouchDB
CouchDB

280
238
+ 1
136
Hazelcast
Hazelcast

121
94
+ 1
36
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CouchDB vs Hazelcast: What are the differences?

What is CouchDB? HTTP + JSON document database with Map Reduce views and peer-based replication. Apache CouchDB is a database that uses JSON for documents, JavaScript for MapReduce indexes, and regular HTTP for its API. CouchDB is a database that completely embraces the web. Store your data with JSON documents. Access your documents and query your indexes with your web browser, via HTTP. Index, combine, and transform your documents with JavaScript.

What is Hazelcast? Clustering and highly scalable data distribution platform for Java. With its various distributed data structures, distributed caching capabilities, elastic nature, memcache support, integration with Spring and Hibernate and more importantly with so many happy users, Hazelcast is feature-rich, enterprise-ready and developer-friendly in-memory data grid solution.

CouchDB belongs to "Databases" category of the tech stack, while Hazelcast can be primarily classified under "In-Memory Databases".

"JSON" is the primary reason why developers consider CouchDB over the competitors, whereas "High Availibility" was stated as the key factor in picking Hazelcast.

CouchDB and Hazelcast are both open source tools. It seems that CouchDB with 4.24K GitHub stars and 835 forks on GitHub has more adoption than Hazelcast with 3.18K GitHub stars and 1.16K GitHub forks.

BrightMachine, Bit Zesty, and Meltwater are some of the popular companies that use CouchDB, whereas Hazelcast is used by Yammer, Seat Pagine Gialle, and Para. CouchDB has a broader approval, being mentioned in 61 company stacks & 32 developers stacks; compared to Hazelcast, which is listed in 26 company stacks and 16 developer stacks.

What is CouchDB?

Apache CouchDB is a database that uses JSON for documents, JavaScript for MapReduce indexes, and regular HTTP for its API. CouchDB is a database that completely embraces the web. Store your data with JSON documents. Access your documents and query your indexes with your web browser, via HTTP. Index, combine, and transform your documents with JavaScript.

What is Hazelcast?

With its various distributed data structures, distributed caching capabilities, elastic nature, memcache support, integration with Spring and Hibernate and more importantly with so many happy users, Hazelcast is feature-rich, enterprise-ready and developer-friendly in-memory data grid solution.
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      What are some alternatives to CouchDB and Hazelcast?
      MongoDB
      MongoDB stores data in JSON-like documents that can vary in structure, offering a dynamic, flexible schema. MongoDB was also designed for high availability and scalability, with built-in replication and auto-sharding.
      Couchbase
      Developed as an alternative to traditionally inflexible SQL databases, the Couchbase NoSQL database is built on an open source foundation and architected to help developers solve real-world problems and meet high scalability demands.
      Cloudant
      Cloudant’s distributed database as a service (DBaaS) allows developers of fast-growing web and mobile apps to focus on building and improving their products, instead of worrying about scaling and managing databases on their own.
      MariaDB
      Started by core members of the original MySQL team, MariaDB actively works with outside developers to deliver the most featureful, stable, and sanely licensed open SQL server in the industry. MariaDB is designed as a drop-in replacement of MySQL(R) with more features, new storage engines, fewer bugs, and better performance.
      RethinkDB
      RethinkDB is built to store JSON documents, and scale to multiple machines with very little effort. It has a pleasant query language that supports really useful queries like table joins and group by, and is easy to setup and learn.
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      Decisions about CouchDB and Hazelcast
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      How developers use CouchDB and Hazelcast
      Avatar of King's Digital Lab
      King's Digital Lab uses CouchDBCouchDB

      Document (JSON) DB.

      • - queries must be pre-defined as views (not as flexible as query formulation on the fly)
      • - community and ecosystem not as large as mongodb
      • + PouchDB is an excellent JS library to interact with CouchDB or even work in offline-then-sync moce
      Avatar of Vital Labs, Inc.
      Vital Labs, Inc. uses HazelcastHazelcast

      HazelCast is the foundation for the distributed system that hosts our APIs and intelligent workflows. We wrap the core HazelCast functions in Clojure protocols to implement micro-services on top of a coherent, single-process instance per virtual node.

      Avatar of Smileupps
      Smileupps uses CouchDBCouchDB

      By being built on, of, in and around CouchDB, Smileupps offers to its customers secure and reliable CouchDB hosting and a CouchDB-based app store to build and sell serious business-enabled web applications

      Avatar of Giant Swarm
      Giant Swarm uses CouchDBCouchDB

      We use CouchDB in an internal analysis tool for usage data.

      Avatar of Mathias Vonende
      Mathias Vonende uses CouchDBCouchDB

      Storage for unstructured, linked and timeseries data.

      Avatar of Aaron Buchanan
      Aaron Buchanan uses CouchDBCouchDB

      json store + geo + _changes

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