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opensearch.md

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AWS OpenSearch (Formerly known as ElasticSearch)

  • Is a managed implementation of ElasticSearch, an open source search solution. It is part of the ELK stack (ElasticSearch, Logstash, Kibana)
  • OpenSearch is not serverless, it runs in a VPC using compute
  • OpenSearch is usually an alternative to other AWS services
  • Can be used for log analytics, monitoring, security analytics, full text search and indexing, click stream analytics

ELK Stack

  • ElasticSearch (or OpenSearch on AWS): provides search and indexing services
  • Kibana: visualization and dashboard tool
  • Logstash: similar to CloudWatch Logs, needs a Logstash agent installed on anything to ingest data