Enhancing OpenSearch Service Cluster Stability with Dedicated Cluster Manager Nodes

Thursday, Jul 3, 2025 12:22 pm ET1min read
AMZN--

Amazon OpenSearch Service is a managed service for securing, deploying, and operating OpenSearch clusters at scale in the AWS Cloud. Dedicated cluster manager nodes can enhance stability by separating management tasks from data nodes, reducing the impact of heavy traffic on performance and stability. The number of dedicated cluster manager nodes is calculated based on the total number of nodes, with a quorum set to half the nodes, rounded down to the nearest whole number, plus one. Using three dedicated cluster manager nodes ensures that there is always a backup in the event of a failure.

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