Note_Tech

All technological notes.

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AWS - Amazon OpenSearch

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• AWS - Amazon OpenSearch
  • Amazon OpenSearch
    • OpenSearch patterns

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Amazon OpenSearch

• Amazon OpenSearch is successor to Amazon ElasticSearch

• In DynamoDB, queries only exist by primary key or indexes…

• Used for analytic search:

  • With OpenSearch, you can search any field, even partially matches
  • It’s common to use OpenSearch as a complement to another database

• Two modes:

  • managed cluster
  • serverless cluster

• Does not natively support SQL (can be enabled via a plugin)

• Ingestion from Kinesis Data Firehose, AWS IoT, and CloudWatch Logs

• Security through Cognito & IAM, KMS encryption, TLS

• Comes with OpenSearch Dashboards (visualization)

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OpenSearch patterns

• DynamoDB
  • In this pattern, app running on EC2 instance can perform different kinds of search using OpenSearch, instead of search based on item id.
  • Once the search is done, app retrieves items from DB.

• CloudWatch Logs

• Kinesis Data Streams & Kinesis Data Firehose

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