Nileh Jain has a guide for us:
Elasticsearch and OpenSearch are powerful tools for handling search and analytics workloads, offering scalability, real-time capabilities, and a rich ecosystem of plugins and integrations. Elasticsearch is widely used for full-text search, log monitoring, and data visualization across industries due to its mature ecosystem. OpenSearch, a community-driven fork of Elasticsearch, provides a fully open-source alternative with many of the same capabilities, making it an excellent choice for organizations prioritizing open-source principles and cost efficiency.
Migration to OpenSearch should be considered if you are using Elasticsearch versions up to 7.10 and want to avoid licensing restrictions introduced with Elasticsearch’s SSPL license. It is also ideal for those seeking continued access to an open-source ecosystem while maintaining compatibility with existing Elasticsearch APIs and tools. Organizations with a focus on community-driven innovation, transparent governance, or cost control will find OpenSearch a compelling option.
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