DBMS > KairosDB vs. OpenTSDB vs. ToroDB

System Properties Comparison KairosDB vs. OpenTSDB vs. ToroDB

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Editorial information provided by DB-Engines
Name	KairosDB  Xexclude from comparison	OpenTSDB  Xexclude from comparison	ToroDB  Xexclude from comparison
Description	Distributed Time Series DBMS based on Cassandra or H2	Scalable Time Series DBMS based on HBase	A MongoDB-compatible JSON document store, built on top of PostgreSQL
Primary database model	Time Series DBMS	Time Series DBMS	Document store
DB-Engines Ranking measures the popularity of database management systems Trend Chart	Score 0.65 Rank #214   Overall #15   Time Series DBMS	Score 1.86 Rank #129   Overall #8   Time Series DBMS	Score 0.03 Rank #340   Overall #45   Document stores
Website	github.com/­kairosdb/­kairosdb	opentsdb.net	www.torodb.com
Technical documentation	kairosdb.github.io	opentsdb.net/­docs/­build/­html/­index.html	www.torodb.com/­stampede/­docs
Developer		currently maintained by Yahoo and other contributors	8Kdata
Initial release	2013	2011	2016
Current release	1.2.2, November 2018
License Commercial or Open Source	Open Source Apache 2.0	Open Source LGPL	Open Source AGPL-V3
Cloud-based only Only available as a cloud service	no	no	no
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Implementation language	Java	Java	Java
Server operating systems	Linux OS X Windows	Linux Windows	All OS with a Java 7 VM
Data scheme	schema-free	schema-free	schema-free
Typing predefined data types such as float or date	yes	numeric data for metrics, strings for tags	yes string, integer, double, boolean, date, object_id
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	no
SQL Support of SQL	no	no
APIs and other access methods	Graphite protocol HTTP REST Telnet API	HTTP API Telnet API
Supported programming languages	Java JavaScript Node.js PHP Python	Erlang Go Java Python R Ruby
Server-side scripts Stored procedures	no	no
Triggers	no	no	no
Partitioning methods Methods for storing different data on different nodes	Sharding based on Cassandra	Sharding based on HBase	Sharding
Replication methods Methods for redundantly storing data on multiple nodes	selectable replication factor based on Cassandra	selectable replication factor based on HBase	Source-replica replication
MapReduce Offers an API for user-defined Map/Reduce methods	no	no
Consistency concepts Methods to ensure consistency in a distributed system	Eventual Consistency based on Cassandra Immediate Consistency based on Cassandra	Immediate Consistency based on HBase	Eventual Consistency Immediate Consistency
Foreign keys Referential integrity	no	no	no
Transaction concepts Support to ensure data integrity after non-atomic manipulations of data	no	no	no
Concurrency Support for concurrent manipulation of data	yes	yes	yes
Durability Support for making data persistent	yes	yes	yes
In-memory capabilities Is there an option to define some or all structures to be held in-memory only.	no	no
User concepts Access control	simple password-based access control	no	Access rights for users and roles
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	KairosDB	OpenTSDB	ToroDB
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