Amazon OpenSearch Service is a managed search and analytics service that makes it easy to deploy, operate, and scale a search solution for your website or application. It provides a powerful search engine that can handle large volumes of data and complex queries, making it an ideal choice for businesses of all sizes.
One of the key features of Amazon OpenSearch Service is Multi-AZ with Standby, which enhances the service’s availability to 99.99%. This means that your search solution will be highly available and resilient to failures, ensuring that your users can always access the information they need.
Multi-AZ with Standby is a feature that allows you to deploy your OpenSearch cluster across multiple Availability Zones (AZs) in a region. An Availability Zone is a distinct location within a region that is engineered to be isolated from failures in other Availability Zones. By deploying your OpenSearch cluster across multiple AZs, you can ensure that your search solution remains available even if one or more AZs experience an outage.
In addition to deploying your OpenSearch cluster across multiple AZs, Multi-AZ with Standby also includes a standby node that is automatically created in a separate AZ. This standby node is kept in sync with the primary node using asynchronous replication, so that if the primary node fails, the standby node can take over and become the new primary node.
This automatic failover process is transparent to your users, so they won’t experience any disruption in service if a failure occurs. The standby node also provides an additional layer of protection against data loss, as it can be used to recover data in the event of a primary node failure.
To enable Multi-AZ with Standby for your OpenSearch cluster, you simply need to select the option when creating your cluster. Amazon OpenSearch Service will then automatically deploy your cluster across multiple AZs and create a standby node for you.
In summary, Multi-AZ with Standby is a powerful feature that enhances the availability and resilience of Amazon OpenSearch Service. By deploying your cluster across multiple AZs and including a standby node, you can ensure that your search solution remains highly available and resilient to failures. This feature is easy to enable and provides a significant benefit to businesses of all sizes that rely on Amazon OpenSearch Service for their search and analytics needs.
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