Elasticsearch architecture diagram, technical illustration, simple lines, bright colors, 3D visualization, nodes connected by lines, master node, data node, client node, cluster, indexing, querying, shards, replicas, RESTful API, JSON data format, Linux system, Docker container, Kubernetes deployment, cloud infrastructure, AWS or Azure or Google Cloud, high availability, load balancing, security encryption, real-time data processing, big data analytics, monitoring dashboard, Kibana integration.