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OpenSearch

5 production projects and 0 rule sets built with OpenSearch.

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Production projects

Team Collaboration Suite Classic Mattermost A single Go binary keeps the API, scheduler, and websocket hub in one deployable process backed by a required PostgreSQL database, while optional Redis, Elasticsearch, and OpenSearch clients let larger deployments add caching and full-text search without changing the core architecture.
Open-Source Payments Orchestration Classic Hyperswitch Hyperswitch runs a panic-averse Rust router on Actix Web with Redis absorbing hot writes and a drainer persisting them to PostgreSQL, while a routing DSL that also compiles to WebAssembly keeps processor selection consistent between server and browser.
LLM Knowledge Base & RAG Platform Classic WeKnora Retrieval, agents and the API sit in one Go service, and parsing is delegated to a Python gRPC service. Storage backends are pluggable, so the same codebase runs as a lite SQLite binary or a full Kubernetes deployment on existing Postgres, Elasticsearch or vector databases.
Developer Data Platform Classic Crowd.dev Decomposing ingestion, enrichment, and merging into many independent Temporal-orchestrated worker services under services/apps lets crowd.dev scale each pipeline stage separately, while shared @crowd/* libraries keep database, queue, search, and cache access consistent across all of them.
Customer Support Suite Hybrid Chatwoot Keeping the Vue dashboard inside the Rails asset pipeline via vite_rails and running realtime updates over Action Cable lets Chatwoot ship one deployable Rails app instead of coordinating a separate frontend and websocket service, while Sidekiq and OpenSearch handle background work and search.

Often used with OpenSearch

Questions about OpenSearch

How many production projects use OpenSearch?

5 verified production projects in the STACK IT FAST directory use OpenSearch, each with a full architecture breakdown.

What is OpenSearch most often used with?

Across projects in the directory, OpenSearch is most commonly paired with PostgreSQL, Redis, Docker.