What is Citus?
* Open-source PostgreSQL extension (not a fork)
* Scalable across multiple hosts through sharding and replication
* Distributed engine for query parallelization
* Highly available in the face of host failures
Citus horizontally scales PostgreSQL across commodity servers using
sharding and replication. Its query engine parallelizes incoming SQL
queries across these servers to enable real-time responses on large
datasets.
MonetDB is an open source column-oriented database management system
developed at the Centrum Wiskunde & Informatica (CWI) in the
Netherlands. It was designed to provide high performance on complex
queries against large databases, such as combining tables with hundreds
of columns and multi-million rows. MonetDB has been applied in
high-performance applications for data mining, online analytical
processing, geographic information systems, XML Query (XQuery), text
and multimedia retrieval.
Mongo (from "humongous") is a high-performance, open source,
schema-free, document-oriented database. A common name in the
"NOSQL" community.
It is pretty easy to gather status information from all sorts of things,
ranging from the temperature in your office to the number of octets which
have passed through the FDDI interface of your router. But it is not so
trivial to store this data in a efficient and systematic manner. This is
where RRDtool kicks in. It lets you log and analyze the data you gather from
all kinds of data-sources. The data analysis part of RRDtool is based
on the ability to quickly generate graphical representations of the data
values collected over a definable time period.
MySQL Connector ODBC is an ODBC driver for interfacing to MySQL databases.
Namazu is a full-text search system intended for easy use. Not only it works
as a CGI program for a small or medium scale Web search engine, but also works
as a personal use search system for your pile of emails.
(The Japanese word `Namazu' means `catfish' in English)
Firebird is a relational database offering many ANSI SQL-99 features
that runs on Linux, Windows, and a variety of Unix platforms. Firebird
offers excellent concurrency, high performance, and powerful language
support for stored procedures and triggers. It has been used in
production systems, under a variety of names since 1981.
Firebird is completely free of any registration, licensing or deployment
fees. It may be deployed freely for use with any third-party software,
whether commercial or not.
OpenTSDB is a distributed, scalable Time Series Database (TSDB) written
on top of HBase. OpenTSDB was written to address a common need: store,
index and serve metrics collected from computer systems (network gear,
operating systems, applications) at a large scale, and make this data
easily accessible and graphable.
DBD::SQLite
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SQLite is a small fast embedded SQL database engine.
DBD::SQLite embeds that database engine into a DBD driver, so if
you want a relational database for your project, but don't want
to install a large RDBMS system like MySQL or PostgreSQL, then
DBD::SQLite may be just what you need.
It supports quite a lot of features, such as transactions (atomic
commit and rollback), indexes, DBA-free operation, a large subset
of SQL92 supported, and more.