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MySQL
Analyzed about 16 hours ago
MySQL, the most popular Open Source SQL database management system, is developed, distributed, and supported by Oracle Corporation.
Licenses:
gpl
PostgreSQL Database Server
Analyzed about 15 hours ago
PostgreSQL is a powerful, open source relational database system. It has more than 15 years of active development and a proven architecture that has earned it a strong reputation for reliability, data integrity, and correctness. It runs on all major operating systems, including Linux, UNIX (AIX
1.25M lines of code
27 current contributors
about 17 hours since last commit
2,109 users on Open Hub
Licenses:
postgresql
HyperSQL Database Engine
Analyzed 1 day ago
hsqldb is a relational database engine written in Java with a JDBC driver that supports a subset of ANSI SQL:1999. It offers a small, fast database engine. Embedded and server modes are available. It includes tools such as a minimal Web server, in-memory query and management tools (which can be run
Licenses:
BSD-3-Clause
MariaDB
Analyzed 15 days ago
MariaDB is one of the most popular database servers in the world. It’s made by the original developers of MySQL and guaranteed to stay open source.
Apache CouchDB
Claimed by Apache Software Foundation Analyzed 1 day 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.
Licenses:
apache_2
Cassandra
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
Licenses:
apache_2
Midgard
Analyzed about 23 hours ago
Midgard is an Open Source persistent storage framework. It provides an object-oriented and replicated environment for building data-intensive applications.
Midgard also ships with MidCOM content management system built on the Midgard framework. MidCOM's features include web-based authoring
Slony-I
S
Analyzed 7 months ago
Slony-I is a "master to multiple slaves" replication system supporting cascading and slave promotion. The big picture for the development of Slony-I is as a master-slave system that includes all features and capabilities needed to replicate large databases to a reasonably limited number of slave
Licenses:
BSD-3-Clause
JGroups
Analyzed about 19 hours ago
JGroups is a toolkit for reliable multicast communication. (Note that this doesn't necessarily mean IP Multicast, JGroups can also use transports such as TCP).
It can be used to create groups of processes whose members can send messages to each other. The main features include
* Group
Licenses:
apache_2
Pgpool
P
Analyzed 7 months ago
pgpool is a connection pool server for PostgreSQL. pgpool runs between PostgreSQL's clients(front ends) and servers(back ends). A PostgreSQL client can connect to pgpool as if it were a standard PostgreSQL server.
pgpool supports replication, failover, switchover, load balancing.
pgpool-II is
Licenses:
BSD-3-Clause