How do I resolve a HTTP 503 or HTTP 504 error in Amazon OpenSearch Service?

Last updated: 2021-07-23

I received an HTTP 503 or HTTP 504 error in Amazon OpenSearch Service (successor to Amazon Elasticsearch Service). How do I resolve these errors?

Resolution

HTTP 503: This error indicates that one or more cluster nodes don't have enough capacity to handle the request. For more information, see How can I prevent HTTP 503 Service Unavailable errors in Amazon OpenSearch Service?
HTTP 504: This error happens when a request fails to complete within the idle timeout period. For more information, see How can I prevent HTTP 504 gateway timeout errors in Amazon OpenSearch Service?

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