DBMS > OpenSearch

OpenSearch System Properties

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Our visitors often compare OpenSearch with Elasticsearch, Microsoft Azure AI Search and Amazon CloudSearch.

Editorial information provided by DB-Engines

Name

Description

A distributed, RESTful search and analytics engine forked from Elasticsearch and based on Apache Lucene

Primary database model

Search engine
Vector DBMS

Secondary database models

Vector DBMS

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

Score	16.90
Rank	#32	Overall
	#4	Search engines
	#2	Vector DBMS

Website

github.com/opensearch-project
opensearch.org

Technical documentation

opensearch.org/docs/latest

Developer

The OpenSearch Software Foundation

Initial release

2021

Current release

2.19, February 2025

License

Commercial or Open Source

Open Source

Apache Version 2.0

Cloud-based only

Only available as a cloud service

DBaaS offerings (sponsored links)

Database as a Service

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

Implementation language

Java

Server operating systems

All OS with a Java VM

Data scheme

schema-free

Flexible type definitions. Once a type is defined, it is persistent

Typing

predefined data types such as float or date

yes

Secondary indexes

yes

All search fields are automatically indexed

SQL

Support of SQL

SQL-like query language

APIs and other access methods

Java API
RESTful HTTP/JSON API

Supported programming languages

Go
Java
JavaScript (Node.js)
PHP
Python
Ruby

Elasticsearch client

Server-side scripts

Stored procedures

yes

Triggers

yes

by using the 'percolation' feature

Partitioning methods

Methods for storing different data on different nodes

Sharding

Replication methods

Methods for redundantly storing data on multiple nodes

yes

Consistency concepts

Methods to ensure consistency in a distributed system

Eventual Consistency

Synchronous doc based replication. Get by ID may show delays up to 1 sec. Configurable write consistency: one, quorum, all

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

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More resources

Recent citations in the news

Visualizing Amazon DynamoDB data with Amazon OpenSearch Service and Amazon Managed Grafana
30 May 2025, Amazon Web Services (AWS)

OpenSearch 3.0: Vector Search Gets the Open Source Performance Boost AI Applications Need
22 May 2025, Cloud Native Now

OpenSearch in 2025: Much more than an Elasticsearch fork
28 April 2025, InfoWorld

Can OpenSearch Shut Down Those Bad Vector Search Results?
30 May 2025, The New Stack

OpenSearch UI: Six months in review
23 May 2025, Amazon Web Services (AWS)

provided by Google News

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