AOSOPS03-BP01 Establish alarms for OpenSearch Service domain
Set up alerts to receive timely notifications about potential issues that may impact performance or availability.
Level of risk exposed if this best practice is not established: High
Desired outcome: Receive timely, relevant, and actionable alerts for rapid identification and mitigation of potential issues, especially when KPI outcomes are at risk.
Benefits of establishing this best practice:
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Prompt notification: Configure OpenSearch Service domains with recommended Amazon CloudWatch alarms to receive notifications when critical conditions occur, such as a cluster health status remaining in a critical state for more than one minute.
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Enable corrective action: By implementing automatic actions, such as sending email notifications, you can take corrective action to address issues before they impact your OpenSearch Service domain's performance or availability.
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Improve domain reliability: Regular monitoring and notification through CloudWatch alarms helps your OpenSearch Service domain to remain reliable, available, and performing optimally, meeting the requirements of your users and applications.
Implementation guidance
It's highly recommended to implement the Recommended Amazon CloudWatch alarms for your Amazon OpenSearch Service domains.
Use alarms to initiate automated actions when specific conditions are met, such as when a metric exceeds a predetermined threshold over a set duration. For example, if your cluster health status remains in a critical state (indicated by a red status) for more than one minute, you can configure your monitoring tool to send an email notification, which prepares you to take swift corrective action.
To set up essential Amazon CloudWatch alarms for your OpenSearch Service domain, follow a multi-step process that involves two key components:
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Understanding alarms: Familiarize yourself with the recommended alarms and their critical thresholds to stay aware of the most significant metrics to monitor. Recommended CloudWatch alarms for Amazon OpenSearch Service details the recommended alarms and their thresholds.
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Creating alarms: Follow the instructions in Amazon CloudWatch alarms and How do I use CloudWatch alarms to monitor my OpenSearch Service cluster
to create alarms that meet your specific needs.
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