How to Install OpenSearch on Hostinger VPS

OpenSearch is a community-driven, open-source search and analytics suite derived from Elasticsearch. It provides a distributed, RESTful search engine with advanced vector database capabilities for powering AI applications, RAG pipelines, and semantic search. OpenSearch offers k-NN (k-Nearest Neighbors) search for vector similarity, integrated with a full-text search engine, making it ideal for hybrid search in RAG systems. With built-in security, alerting, and machine learning plugins, it is a comprehensive solution for production AI workloads. The OpenSearch project includes OpenSearch Dashboards for visualization and management, and supports SQL, PPL, and Dashboards query languages. With over 13k stars, it is trusted by enterprises worldwide for log analytics, application search, and AI-powered vector search.