https://aws.amazon.com/blogs/database/get-started-with-amazon-elasticsearch-service-how-many-shards-do-i-need/
Number of Shards = Index Size / 30GB
3 Data Nodes
2 Index
3 Shards per index
1 Replica per Shard
0. Best practices of Elasticsearch: Amazon Elasticsearch Service: https://www.youtube.com/watch?v=WuonfW-zQJ8 1. Get started with Amazon Elasticsearch Service: T-shirt-size your domain: https://aws.amazon.com/blogs/database/get-started-with-amazon-elasticsearch-service-t-shirt-size-your-domain/ 3. Improve the Operational Efficiency of Amazon Elasticsearch Service Domains with Automated Alarms Using Amazon CloudWatch https://aws.amazon.com/blogs/big-data/improve-the-operational-efficiency-of-amazon-elasticsearch-service-domains-with-automated-alarms-using-amazon-cloudwatch/ 4. Viewing Amazon Elasticsearch Service Error Logs: https://aws.amazon.com/jp/blogs/big-data/viewing-amazon-elasticsearch-service-error-logs/ 5. Viewing Amazon Elasticsearch Service Slow Logs https://aws.amazon.com/blogs/database/viewing-amazon-elasticsearch-service-slow-logs/
