Versus

Elasticsearch vs OpenSearch

https://elasticsearch-vs-opensearch.com

Chapter 1

Philosophy

Elasticsearch

Search. Observe. Protect.Accelerate results that matter, across any cloud.

Started as a recipe search engine by Shay Banon, evolved into Elasticsearch

ELK Stack formed: Elasticsearch, Logstash, Kibana, creating a powerful search platform

Search everything, anywhere: Enterprise Search, Observability, APM, Security and more

Acquired Endgame for endpoint security, launched Elastic SIEM for security information and events

Celebrated 10th anniversary with a growing global community and numerous industry recognitions

OpenSearch

Scalable, flexible, and extensible.Open-source licensed under Apache 2.0.

OpenSearch v1.0.0 and OpenSearch Dashboards, derived from Elasticsearch and Kibana 7.10.2 anounced in 2021

Enhancements and fixes, including span filtering in Trace Analytics, tenant support in Notebooks, and K-NN field level algorithm selection

Truly open source, level playing field, widespread use, community input.

Aims to ensure secure, high-quality, fully open-source search and analytics suite

Open to contributions, respectful and friendly atmosphere, and a place for innovation

Elasticsearch vs OpenSearch

Chapter 2

Github stats &

Stack overflow stats

Elasticsearch

Release dateFebruary 8, 2010

Last updateJanuary 30, 2025

Stars71442

Commits83207

Issues4791

OpenSearch

Release dateJanuary 29, 2021

Last updateJanuary 30, 2025

Stars10124

Commits59148

Issues2015

Tag#elasticsearch

Total Questions58740

Users

All timeLast month

Val13976

javanna4159

Andrei Stefan2651

imotov2361

Chapter 3

Last releases

Elasticsearch

Release dateJanuary 10th 2023

Version8.6.0

Release dateNovember 1st 2022

Version8.5.0

Release dateAugust 4th 2022

Version8.4.0

Release dateJune 28th 2022

Version8.3.0

Release dateMay 3rd 2022

Version8.2.0

;

OpenSearch

Release dateFebruary 28th 2023

Version2.6.0

Release dateJanuary 12th 2023

Version2.5.0

Release dateNovember 14th 2022

Version2.4.0

Release dateSeptember 8th 2022

Version2.3.0

Release dateAugust 8th 2022

Version2.2.0

Elasticsearch

Releases in last 12 months

OpenSearch

Sep

2.3

Nov

2.4

Jan

2.5

Feb

2.6

May

2.7

Jun

2.8

Jul

2.9

Sep

2.10

Oct

2.11

Chapter 4

Features and roadmap

Keyfeatures

Pilar ofobservability

Q1 2023Summary

Pros& Cons

Who isusing it?

Key features side by side

Elasticsearch

OpenSearch

Data retention

How long do you want to keep your data?

Index Lifecycle Management

You can create and apply Index lifecycle management (ILM) policies to automatically manage your indices according to your performance, resiliency, and retention requirements.

Index State Management

Index State Management (ISM) lets you automate these periodic, administrative operations by triggering them based on changes in the index age, index size, or number of documents.

Relevant Search

Which features are offered to improve or facilitate search relevance?

App Search

Application to build flexible yet robust search solutions with text search, sentiment analysis, vector search, and other machine learning capabilities

Compare Search Results

It lets you compare search results from two queries side by side to determine whether one query produces better results than the other.

Ingestion

Which tools are offered to ingest data?

Beats, Logstash, Elastic Agent

With Elastic Agent you can collect all forms of data from anywhere with a single unified agent per host. One thing to install, configure, and scale.

Data Prepper

Agents and ingestion tools that worked with ES OSS, such as Beats, Logstash, Fluentd, FluentBit, and OpenTelemetry will work as well.

Security

Endpoint security, threat detection, SIEM,

Elastic Security

Protect, investigate, and respond to complex threats by unifying the capabilities of SIEM, endpoint security, and cloud security.

Security Analytics

SIEM solution for OpenSearch, designed to investigate, detect, analyze, and respond to security threats.

Alerts

How do you want to manage your alerts?

Alerting

Define rules to detect complex conditions within different Kibana apps and trigger actions when those conditions are met.

Alerting

You can use the Alerting plugin in OpenSearch Dashboards to monitor your data and create alert notifications that trigger when conditions occur in one or more indexes.

Auth

How do you want to manage your users?

Single Sign On (SSO)

License required

Single Sign On (SSO)

Free feature

Searchable snapshots

Indices available for search without being stored on the node

Cold/Frozen tiers

https://www.elastic.co/guide/en/elasticsearch /reference/current/searchable-snapshots.html

UltraWarm Based

A searchable snapshot is an index where data is read from a snapshot repository on demand at search time rather than all index data being downloaded to cluster storage at restore time.

Orchestration

It is a long established fact that a reader will.

ECK

Built on the Kubernetes Operator pattern, Elastic Cloud on Kubernetes (ECK) extends the basic Kubernetes orchestration capabilities to support the setup and management of Elasticsearch, Kibana, APM Server, Enterprise Search, Beats, Elastic Agent, and Elastic Maps Server on Kubernetes.

OpenSearch k8s Operator

It is a long established fact that a reader will.

Chapter 5

Google Trends

Interest over time

Elasticsearch

OpenSearch

20222023

Elasticsearch Top Related Topics

OpenSearch Top Related Topics

Chapter 6

About Elasticsearch

& OpenSearch