DBMS > Newts vs. OpenMLDB

System Properties Comparison Newts vs. OpenMLDB

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Editorial information provided by DB-Engines

Name

Description

Time Series DBMS based on Cassandra

An open-source machine learning database that provides a feature platform for training and inference

Primary database model

Time Series DBMS

Secondary database models

Relational DBMS

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

Score	0.02
Rank	#372	Overall
	#41	Time Series DBMS

Score	0.08
Rank	#347	Overall
	#33	Time Series DBMS

Website

opennms.github.io/newts

openmldb.ai

Technical documentation

github.com/OpenNMS/newts/wiki

openmldb.ai/docs/zh/main

Developer

OpenNMS Group

4 Paradigm Inc.

Initial release

2014

2020

Current release

2024-2 February 2024

License

Commercial or Open Source

Open Source

Apache 2.0

Open Source

Cloud-based only

Only available as a cloud service

DBaaS offerings (sponsored links)

Database as a Service

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Implementation language

Java

C++, Java, Scala

Server operating systems

Linux
OS X
Windows

Linux

Data scheme

schema-free

Fixed schema

Typing

predefined data types such as float or date

yes

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.

Secondary indexes

yes

SQL

Support of SQL

yes

APIs and other access methods

HTTP REST
Java API

JDBC
SQLAlchemy

Supported programming languages

Java

C++
Go
Java
Python
Scala

Server-side scripts

Stored procedures

Triggers

Partitioning methods

Methods for storing different data on different nodes

Sharding

based on Cassandra

horizontal partitioning

Replication methods

Methods for redundantly storing data on multiple nodes

selectable replication factor

based on Cassandra

Source-replica replication

MapReduce

Offers an API for user-defined Map/Reduce methods

Consistency concepts

Methods to ensure consistency in a distributed system

Eventual Consistency

based on Cassandra
Immediate Consistency

based on Cassandra

Immediate Consistency

Foreign keys

Referential integrity

Transaction concepts

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

Concurrency

Support for concurrent manipulation of data

yes

Durability

Support for making data persistent

yes

In-memory capabilities

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

yes

User concepts

Access control

fine grained access rights according to SQL-standard

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