[AWS] 18-10. Databases in AWS : ElasticSearch

[ Databases in AWS : ElasticSearch ]

주로 다른 DB 를 보완하기위해 사용

필드 상관없이 조회 가능, 부분 매칭이어도 조회가 가능

- Example : In DynamoDB, you can only find by primary key or indexes

- With ElasticSearch, you can search any field, even partially matches

- It's common to use ElasticSearch as a complement to another database

- ElasticSearch also has some usage for Big Data applications

- You can provision a cluster of instances

- Built-in integrations : Amazon Kinesis Data Firehose, AWS IoT, and Amazon CloudWatch Logs for data ingestion

- Security through Cognito & IAM, KMS encryption, SSL & VPC

- Comes with Kibana (visualization) & Logstash (log ingestion) - ELK stack

 

[ ElasticSearch for Solutions Architect ]

Operations : similar to RDS

Security : Cognito, IAM, VPC, KMS, SSL

Reliability : Multi-AZ, clustering

Performance : based on ElasticSearch project(open source), petabyte scale

Cost : pay per node provisioned (similar to RDS)

Remember : ElasticSearch = Search/Indexing