# AOSSEC02-BP03 Monitor real-time events in your OpenSearch Service domains
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 Track real-time events in your OpenSearch Service domains using Amazon EventBridge, enabling automated actions and notifications to improve visibility and response times. 

 **Level of risk exposed if this best practice is not established:** Medium 

 **Desired outcome:** Real-time events in OpenSearch Service domains are tracked and monitored according to your requirements. Automated actions and notifications are configured for relevant events if required. 

 **Benefits of establishing this best practice:** 
+  **Enhanced monitoring:** You can use Amazon EventBridge to monitor real-time events in OpenSearch Service domains to receive notifications about specific events that affect your domains, improving overall visibility and awareness. 
+  **Automated actions:** By creating rules to determine which events are relevant and defining automated actions to take when a rule initiates, organizations can streamline responses to domain-related events and reduce the risk of manual errors or delays. 

## Implementation guidance
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 Amazon OpenSearch Service integrates with Amazon EventBridge, which provides notifications about specific events that affect your domains in near real-time. This integration also provides a transition from Amazon CloudWatch Events. 

 With this setup, you can create simple rules to determine which events are relevant to you and define automated actions to take when a rule occurs. Amazon EventBridge can notify you of various events related to your OpenSearch Service domain, such as software updates, Auto-Tune activities, cluster health changes, VPC endpoint modifications, node retirements, and domain errors. 

 To create a Lambda function that listens to these events, see [Tutorial: Listening for Amazon OpenSearch Service EventBridge events](https://docs.aws.amazon.com/opensearch-service/latest/developerguide/listening-events.html) and [Tutorial: Sending Amazon SNS alerts for available software updates](https://docs.aws.amazon.com/opensearch-service/latest/developerguide/sns-events.html). 

## Resources
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+  [Monitoring OpenSearch Service events with Amazon EventBridge](https://docs.aws.amazon.com/opensearch-service/latest/developerguide/monitoring-events.html)