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Screenshot of OpenSearch website

// screenshot of opensearch.org ↗

AI / LLM · PRO TIER

OpenSearchpro

OpenSearch is the community-driven fork of Elasticsearch, maintained by AWS after Elastic relicensed under SSPL. Distributed search and analytics, Apache 2.0 licensed, with built-in security, alerting, anomaly detection, observability. Drop-in compatible with the Elasticsearch ecosystem (Logstash, Beats, Kibana → OpenSearch Dashboards).

🤖 AI / LLM Min 2048 MB RAM Port 9200 (https) Tier pro
// What it is

A closer look.

OpenSearch is the community-driven fork of Elasticsearch, maintained by AWS after Elastic relicensed under SSPL. Distributed search and analytics, Apache 2.0 licensed, with built-in security, alerting, anomaly detection, observability. Drop-in compatible with the Elasticsearch ecosystem (Logstash, Beats, Kibana → OpenSearch Dashboards).

It's the answer for teams that want the Elastic Stack without Elastic's license terms or commercial pressure.

// Use cases

What it's for.

Concrete scenarios where teams pick OpenSearch over the SaaS alternative.

Log aggregation

centralized logging from microservices

Application search

full-text search at scale across millions of documents

Security analytics (SIEM)

log analysis for security events

Metrics analytics

time-series data + dashboards

Vector search

k-NN search for AI applications (added in 2.x)

// Who it's for

Built for these teams.

If your team profile matches one of these, OpenSearch is a strong fit out of the box.

Profile A

Platform engineering teams

running log aggregation at scale (TB+/day)

Profile B

SRE teams

unifying metrics, logs, traces in one analytics layer

Profile C

Security teams

building SIEM workflows on OSS infrastructure

Profile D

Search teams

needing distributed full-text + faceted search beyond Meilisearch's scope

Profile E

Compliance-bound orgs

rejecting SSPL-licensed Elasticsearch for legal reasons

// Differentiators

Why teams pick OpenSearch.

When evaluating self-hosted options for this category, here are the dimensions on which OpenSearch consistently lands above the alternatives.

  • Apache 2.0 — no SSPL ambiguity, true open source
  • AWS-backed — sustained commercial development + AWS Managed Service compatibility
  • Drop-in Elasticsearch replacement — same APIs, similar dashboards (Kibana fork)
  • Built-in security — RBAC, TLS, audit logging without paid X-Pack equivalent
  • k-NN plugin — vector search for AI use cases
  • Anomaly detection — ML-powered alerting included
// Integrations

Connects to.

The stack you'll plug OpenSearch into — services, protocols, and adjacent apps in the BluixApps catalog.

Log shippers
Logstash, Beats, Fluent Bit, Fluentd, Vector
Dashboards
OpenSearch Dashboards (Kibana fork) included
Client SDKs
Python, JS, Java, Go, .NET, Ruby
Alert channels
Slack, email, PagerDuty via Alerting plugin
SQL endpoint
query OpenSearch with SQL via plugin
Vector search
k-NN plugin for embedding similarity
Trace ingestion
Jaeger-compatible trace storage
// Adoption & deployment

Notable users & community

  • 10k+ GitHub stars on opensearch-project/OpenSearch
  • Backed by AWS with multi-year roadmap commitment
  • Used at scale by AWS customers + enterprises migrating off Elastic
  • Active community across AWS, Capital One, SAP, Hyland
  • Featured in observability + SIEM architecture guides

What we ship

  • Docker compose: OpenSearch single-node + OpenSearch Dashboards
  • Pinned opensearchproject/opensearch:2.18.0 (release-tagged)
  • HTTPS via Let's Encrypt; admin user with random password
  • Persistent volume at /usr/share/opensearch/data for indices
  • Security plugin enabled by default (TLS + RBAC)
  • Snapshot repository configured for daily backup
  • Backup hook captures snapshot exports
// Tips & operations

Run it properly.

Operational guidance from running this in production — what to do before you scale, what to lock down, what surprises people.

// PERFORMANCE
Heap sizing matters
set JVM heap to 50% of container RAM; over-allocation degrades GC
// SECURITY
Shard sizing
aim for 10-50 GB per shard; smaller = overhead, larger = recovery pain
// OPERATIONS
Index lifecycle policies
ILM for time-series data; without it, indices grow unbounded
// RELIABILITY
Snapshot to S3
built-in snapshot repository; cron + S3 = cheap off-site backup
// DEPLOYMENT
Disable wildcard delete in production
accidental DELETE _all = data loss
// SCALING
Resource limits
OpenSearch needs vm.max_map_count >= 262144 on host
2048
// min ram (MB)
10
// min disk (GB)
9200
// access port
https
// protocol
pro
// bluixapps tier
9200:9200 · opensearchproject/opensearch:2
// docker image

Project resources

Official siteopensearch.org ↗
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