Opensearch Articles

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6/22/2026 • EN

How I destroyed production OpenSearch cluster

A developer recounts how a minor Terraform change accidentally deleted their production OpenSearch cluster, analyzing four key mistakes.

DevOps Infrastructure As Code Opensearch Production Incident Terraform

Jan Giacomelli

6/11/2023 • EN

Obsidian-Copilot: An Assistant for Writing & Reflecting

A technical overview of Obsidian-Copilot, a prototype AI assistant for drafting and reflecting within the Obsidian note-taking app using retrieval-augmented generation.

LLM Engineering obsidian Opensearch Retrieval Augmented Generation Semantic Search

Eugene Yan

4/26/2021 • EN

Multi-Tenant Elasticsearch

Explores multi-tenant Elasticsearch/OpenSearch isolation models, comparing one index per tenant vs. document-level security with performance tests.

aws Document Level Security Elasticsearch Multi Tenancy Opensearch

Brian Beach

Opensearch Articles

How I destroyed production OpenSearch cluster

Obsidian-Copilot: An Assistant for Writing & Reflecting

Multi-Tenant Elasticsearch

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