Elastic Search
- Use for 
SearchingandIndexing - Open source
 - Use to search any field or partially search
 - It's common to use 
Elastic Searchas a compliment of other databases - Used in big data application
 - Need to provision a cluster of instances
 - Built in integrations of
 - Amazon Kinesis Data Firehose
 - AWS IoT
 - Cloudwatch
 - Cloudwatch logs
 ELKstack stands for- Elastic Search
 - Logstash (Log Ingestion)
 - Kibana (Visualization)