DBMS > EJDB vs. OpenTSDB vs. Prometheus vs. Snowflake vs. TimescaleDB

System Properties Comparison EJDB vs. OpenTSDB vs. Prometheus vs. Snowflake vs. TimescaleDB

Editorial information provided by DB-Engines

Name

Description

Embeddable document-store database library with JSON representation of queries (in MongoDB style)

Scalable Time Series DBMS based on HBase

Open-source TimeSeries DBMS and monitoring system

Cloud-based data warehousing service for structured and semi-structured data

A time series DBMS optimized for fast ingest and complex queries, based on PostgreSQL

Primary database model

Secondary database models

Relational DBMS

DB-Engines Ranking measures the popularity of database management systems
Trend Chart

Score	0.18
Rank	#262	Overall
	#35	Document stores

Score	1.97
Rank	#112	Overall
	#6	Time Series DBMS

Score	4.08
Rank	#72	Overall
	#3	Time Series DBMS

Score	2.24
Rank	#107	Overall
	#52	Relational DBMS

Score	1.92
Rank	#114	Overall
	#7	Time Series DBMS

Website

Technical documentation

github.com/Softmotions/ejdb/blob/master/README.md

opentsdb.net/docs/build/html/index.html

prometheus.io/docs

docs.snowflake.net/manuals/index.html

docs.timescale.com

Developer

Softmotions

currently maintained by Yahoo and other contributors

Snowflake Computing Inc.

Timescale

Initial release

2012

2011

2015

2014

2017

License

Commercial or Open Source

Open Source info

GPLv2

Open Source info

LGPL

Open Source info

Apache 2.0

commercial

Open Source info

Apache 2.0

Cloud-based only info

Only available as a cloud service

yes

DBaaS offerings (sponsored links) info

Database as a Service

Providers of DBaaS offerings, please contact us to be listed.

Implementation language

Java

Server operating systems

server-less

Linux
Windows

hosted

Linux
OS X
Windows

Data scheme

schema-free

yes

support of semi-structured data formats (JSON, XML, Avro)

yes

Typing

predefined data types such as float or date

yes

string, integer, double, bool, date, object_id

numeric data for metrics, strings for tags

Numeric data only

yes

numerics, strings, booleans, arrays, JSON blobs, geospatial dimensions, currencies, binary data, other complex data types

XML support info

Some form of processing data in XML format, e.g. support for XML data structures, and/or support for XPath, XQuery or XSLT.

Import of XML data possible

yes

Secondary indexes

yes

SQL

Support of SQL

yes

full PostgreSQL SQL syntax

APIs and other access methods

in-process shared library

HTTP API
Telnet API

RESTful HTTP/JSON API

CLI Client
JDBC
ODBC

ADO.NET
JDBC
native C library
ODBC
streaming API for large objects

Supported programming languages

Actionscript
C
C#
C++
Go
Java
JavaScript (Node.js)
Lua
Objective-C
Pike
Python
Ruby

Erlang
Go
Java
Python
R
Ruby

.Net
C++
Go
Haskell
Java
JavaScript (Node.js)
Python
Ruby

JavaScript (Node.js)
Python

.Net
C
C++
Delphi
Java info

JDBC
JavaScript
Perl
PHP
Python
R
Ruby
Scheme
Tcl

Server-side scripts info

Stored procedures

user defined functions

user defined functions, PL/pgSQL, PL/Tcl, PL/Perl, PL/Python, PL/Java, PL/PHP, PL/R, PL/Ruby, PL/Scheme, PL/Unix shell

Triggers

similar concept for controling cloud resources

yes

Partitioning methods info

Methods for storing different data on different nodes

none

Sharding

based on HBase

Sharding

yes

yes, across time and space (hash partitioning) attributes

Replication methods info

Methods for redundantly storing data on multiple nodes

none

selectable replication factor info

based on HBase

yes

by Federation

yes

Master-slave replication with hot standby and reads on slaves info

MapReduce

Offers an API for user-defined Map/Reduce methods

Consistency concepts info

Methods to ensure consistency in a distributed system

Immediate Consistency info

based on HBase

none

Immediate Consistency

Foreign keys info

Referential integrity

typically not needed, however similar functionality with collection joins possible

yes

Transaction concepts info

Support to ensure data integrity after non-atomic manipulations of data

ACID

Concurrency info

Support for concurrent manipulation of data

yes

Read/Write Locking

yes

Durability info

Support for making data persistent

yes

In-memory capabilities info

Is there an option to define some or all structures to be held in-memory only.

User concepts info

Access control

Users with fine-grained authorization concept, user roles and pluggable authentication

fine grained access rights according to SQL-standard

More information provided by the system vendor

Specific characteristics

TimescaleDB is the first open-source time-series database that combines the reliability,...
» more

Competitive advantages

TimescaleDB is purpose-built to scale and handle time-series data workloads and is...
» more

Typical application scenarios

IoT, Industrial Machine, and Sensor Data Various industrial IoT use cases across...
» more

Key customers

Altair Engineering Inc., Bloomberg, Comcast, Cray, Cree, DNSFilter, Laika, LaunchDarkly,...
» more

Market metrics

1.8 million+ downloads, 7,500+ Github stars
» more

Licensing and pricing models

Apache 2 and Timescale License (TSL); Product matrix here ; information on pricing...
» more

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and for displaying vendor-provided information such as key customers, competitive advantages and market metrics.