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Apache CouchDB

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Claimed by Apache Software Foundation Analyzed about 1 month ago

CouchDb is a distributed document database system with bi-directional replication. It makes it simple to build collaborative applications that can be replicated offline by users, with full interactivity (query, add, update, delete), and later "synced up" with everyone else's changes when back online.

124K lines of code

63 current contributors

9 months since last commit

119 users on Open Hub

Activity Not Available
4.75676
   
0 Reviews
I Use This
Mostly written in Erlang
Licenses: apache_2
Tags database distributed document_management erlang javascript jquery json map mapreduce nosql reduce replication 3 more...

Morphia

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  Analyzed about 4 hours ago

Type-safe Java mapping framework for MongoDB

61.7K lines of code

4 current contributors

20 days since last commit

77 users on Open Hub

High Activity
4.6
   
0 Reviews
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Mostly written in Java
Licenses: apache_2
Tags database datastore framework java javascript mapper mongodb nosql objectify odm orm persistence 1 more...

Cassandra

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Claimed by Apache Software Foundation Analyzed 1 day ago

Cassandra is a highly scalable, eventually consistent, distributed, structured key-value store. Cassandra brings together the distributed systems technologies from Dynamo and the data model from Google's BigTable. Like Dynamo, Cassandra is eventually consistent. Like BigTable, Cassandra provides a ... [More] ColumnFamily-based data model richer than typical key/value systems. Cassandra was open sourced by Facebook in 2008, where it was designed by one of the authors of Amazon's Dynamo. In a lot of ways you can think of Cassandra as Dynamo 2.0. Cassandra is in production use at Facebook but is still under heavy development. [Less]

816K lines of code

0 current contributors

4 days since last commit

53 users on Open Hub

High Activity
4.0
   
0 Reviews
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Mostly written in Java
Licenses: apache_2
Tags bigtable columnfamily database distributed dynamo java non-relational nosql replication scalability web

Apache Jackrabbit Oak

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Claimed by Apache Software Foundation Analyzed 6 months ago

Jackrabbit Oak is an effort to implement a scalable and performant hierarchical content repository for use as the foundation of modern world-class web sites and other demanding content applications. The Oak effort is a part of the Apache Jackrabbit project. Jackrabbit is a project of the Apache Software Foundation.

1.33M lines of code

0 current contributors

6 months since last commit

39 users on Open Hub

Activity Not Available
5.0
 
0 Reviews
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Mostly written in Java
Licenses: apache_2
Tags asf content java jcr nosql

EclipseLink

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Claimed by Eclipse Foundation No analysis available

The Eclipse Persistence Services Project (EclipseLink) project's goal is to provide an extensible framework that will enable Java developers to interact with relational databases, XML, and Enterprise Information Systems (EIS) in an efficient and productive manor. EclipseLink will focus on ... [More] supporting leading persistence standards including the Java Persistence API (JPA), Java API for XML Binding (JAXB), Java Connector Architecture (JCA), and Service Data Objects (SDO). [Less]

0 lines of code

2 current contributors

0 since last commit

32 users on Open Hub

Activity Not Available
4.33333
   
0 Reviews
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Mostly written in language not available
Licenses: edl-v10, eclipse
Tags caching database dynamic_content eclipse eclipselink glassfish history java jaxb jpa mongodb multitenancy 14 more...

OrientDB

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  Analyzed 8 months ago

OrientDB is a deeply scalable Document-Graph DBMS with the flexibility of the Document databases and the power to manage links of the Graph databases. It can work in schema-less mode, schema-full or a mix of both. Supports advanced features such as ACID Transactions, Fast Indexes, Native and SQL ... [More] queries. It imports and exports documents in JSON. Graphs of hundreads of linked documents can be retrieved all in memory in few milliseconds without executing costly JOIN such as the Relational DBMSs do. OrientDB uses a new indexing algorithm called MVRB-Tree, derived from the Red-Black Tree and from the B+Tree with benefits of both: fast insertion and ultra fast lookup. [Less]

792K lines of code

0 current contributors

8 months since last commit

23 users on Open Hub

Activity Not Available
5.0
 
0 Reviews
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Mostly written in Java
Licenses: apache_2
Tags database dbms distributed embedded fast graph graphdb graphtheory java lightweight nosql sql

Apache Kafka

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Claimed by Apache Software Foundation Analyzed about 7 hours ago

A high-throughput, distributed, publish-subscribe messaging system.

1.05M lines of code

203 current contributors

1 day since last commit

17 users on Open Hub

Very High Activity
5.0
 
0 Reviews
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Mostly written in Java
Licenses: apache_2
Tags messaging nosql pubsub queuing

hazelcast

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  Analyzed about 14 hours ago

Hazelcast is a clustering and highly scalable data distribution platform for Java. Features: Distributed implementations of java.util.{Queue, Set, List, Map} Distributed implementation of java.util.concurrency.locks.Lock Distributed implementation of java.util.concurrent.ExecutorService ... [More] Distributed MultiMap for one-to-many relationships Distributed Topic for publish/subscribe messaging Transaction support and J2EE container integration via JCA Socket level encryption support for secure clusters Synchronous (write-through) and asynchronous (write-behind) persistence Second level cache provider for Hibernate Monitoring and management of the cluster via JMX Dynamic HTTP session clustering Support for cluster info and membership events Dynamic discovery Dynamic scaling Dynamic partitioning with backups Dynamic fail-over Hazelcast is for you if you want to share data/state among many servers (e.g. web session sharing) cache your data (distributed cache) for better performance cluster your application provide secure communication among servers partition your in-memory data send/receive messages among applications distribute workload onto many servers take advantage of parallel processing provide fail-safe data management Hazelcast is pure Java. JVMs that are running Hazelcast will dynamically cluster. Although by default Hazelcast will use multicast for discovery, it can also be configured to only use TCP/IP for enviroments where multicast is not available or preferred. Communication among cluster members is always TCP/IP with Java NIO beauty. Default configuration comes with 1 backup so if one node fails, no data will be lost. It is as simple as using java.util.{Queue, Set, List, Map}. Just add the hazelcast.jar into your classpath and start coding. A test application comes with the Hazelcast distribution that simulates the queue, set, map and lock APIs. You may want to watch the following 12 minute screencast to quickly get started. [Less]

1.5M lines of code

66 current contributors

3 days since last commit

15 users on Open Hub

High Activity
5.0
 
0 Reviews
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Mostly written in Java
Licenses: apache_2
Tags cache cloud cluster datagrid dht distributed distributed_computing distributedsystems ehcache elastic grid gridcomputing 8 more...

Kazoo Platform

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  Analyzed 2 days ago

Kazoo is a scalable, distributed, cloud-based telephony platform that allows you to build powerful telephony applications with a rich set of APIs. Designed to handle anything from large carrier to small countries, the Whistle infrastructure can do it all. There are no lock-ins and the software is ... [More] open-source to give you complete freedom. Services include: - Complete redundancy and failover between data centers - Complete replication of all data - Use of Map/Reduce algorithms inside NoSQL databases - Multi-master replication and caching of registrations, active channels and call lookups - Load balancing built-in - Event driven messaging for managing and using calls - A complete REST interface for implementing call flow features [Less]

327K lines of code

43 current contributors

11 months since last commit

15 users on Open Hub

Very Low Activity
5.0
 
1 Review
I Use This
Mostly written in Erlang
Licenses: mozilla_p...
Tags 2600 2600hertz 2600hz bigcouch cloud cloudplatform cluster clustering comet communication conferencing couchdb 40 more...

Raven DB

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  Analyzed about 6 hours ago

Raven is an Open Source (with a commercial option) document database for the .NET/Windows platform. Raven offers a flexible data model design to fit the needs of real world systems. Raven stores schema-less JSON documents, allow you to define indexes using Linq queries and focus on low latency and high performance.

881K lines of code

39 current contributors

over 3 years since last commit

14 users on Open Hub

Inactive
5.0
 
0 Reviews
I Use This
Mostly written in C#
Licenses: No declared licenses
Tags acid c# csharp database db dbms document-oriented dotnet non-relational nosql transactions