DBMS > Blueflood vs. LokiJS vs. Riak KV

System Properties Comparison Blueflood vs. LokiJS vs. Riak KV

Please select another system to include it in the comparison.

Editorial information provided by DB-Engines
Name	Blueflood  Xexclude from comparison	LokiJS  Xexclude from comparison	Riak KV  Xexclude from comparison
Description	Scalable TimeSeries DBMS based on Cassandra	In-memory JavaScript DBMS	Distributed, fault tolerant key-value store
Primary database model	Time Series DBMS	Document store	Key-value store with links between data sets and object tags for the creation of secondary indexes
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 0.00 Rank #356   Overall #32   Time Series DBMS	Score 0.53 Rank #233   Overall #36   Document stores	Score 6.31 Rank #67   Overall #10   Key-value stores
Website	blueflood.io	github.com/­techfort/­LokiJS	riak.com/­products/­riak-kv
Technical documentation	github.com/­rackerlabs/­blueflood/­wiki	techfort.github.io/­LokiJS
Developer	Rackspace		Basho Technologies
Initial release	2013	2014	2009
Current release			2.1.0, April 2015
License Commercial or Open Source	Open Source Apache 2.0	Open Source	Open Source Apache version 2, commercial enterprise edition
Cloud-based only Only available as a cloud service	no	no	no
DBaaS offerings (sponsored links) Database as a Service Providers of DBaaS offerings, please contact us to be listed.
Implementation language	Java	JavaScript	Erlang
Server operating systems	Linux OS X	server-less, requires a JavaScript environment (browser, Node.js)	Linux OS X
Data scheme	predefined scheme	schema-free	schema-free
Typing predefined data types such as float or date	yes	no	no
XML support Some form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.	no	no	no
Secondary indexes	no	yes via views	restricted
SQL Support of SQL	no	no	no
APIs and other access methods	HTTP REST	JavaScript API	HTTP API Native Erlang Interface
Supported programming languages		JavaScript	C unofficial client library C# C++ unofficial client library Clojure unofficial client library Dart unofficial client library Erlang Go unofficial client library Groovy unofficial client library Haskell unofficial client library Java JavaScript unofficial client library Lisp unofficial client library Perl unofficial client library PHP Python Ruby Scala unofficial client library Smalltalk unofficial client library
Server-side scripts Stored procedures	no	View functions in JavaScript	JavaScript and Erlang
Triggers	no	yes	yes pre-commit hooks and post-commit hooks
Partitioning methods Methods for storing different data on different nodes	Sharding based on Cassandra	none	Sharding no "single point of failure"
Replication methods Methods for redundantly storing data on multiple nodes	selectable replication factor based on Cassandra	none	selectable replication factor
MapReduce Offers an API for user-defined Map/Reduce methods	no	yes	yes
Consistency concepts Methods to ensure consistency in a distributed system	Eventual Consistency based on Cassandra Immediate Consistency based on Cassandra	none	Eventual Consistency
Foreign keys Referential integrity	no	no	no links between data sets can be stored
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	no	no atomic operations within a single collection possible	no
Concurrency Support for concurrent manipulation of data	yes		yes
Durability Support for making data persistent	yes	yes Serialization of a DB in a Node.JS/Cordova/PhoneGap environment. Usage of the IndexedDB-API in a browser.	yes
In-memory capabilities Is there an option to define some or all structures to be held in-memory only.	no	yes
User concepts Access control	no	no	no
More information provided by the system vendor We invite representatives of system vendors to contact us for updating and extending the system information, and for displaying vendor-provided information such as key customers, competitive advantages and market metrics.
Related products and services We invite representatives of vendors of related products to contact us for presenting information about their offerings here.
More resources
	Blueflood	LokiJS	Riak KV
DB-Engines blog posts