Best practices

This page was generated from content adapted from the AWS Developer Guide

Sizing domains

• Tip For a summary of the hardware resources that are allocated to each instance type, see Amazon OpenSearch Service pricing.

Dedicated master nodes

• Note If your cluster doesn't have the necessary quorum to elect a new master node, write and read requests to the cluster both fail. This behavior differs from the OpenSearch default.

Recommended CloudWatch alarms

• Note If you deploy the CloudFormation stack, the KMSKeyError and KMSKeyInaccessible alarms will exists in an Insufficient Data state because these metrics only appear if a domain encounters a problem with its encryption key.

• Note If you just want to view metrics, see Monitoring OpenSearch cluster metrics with Amazon CloudWatch.