OpenSearch Invalid username or password. Please try again.

Question

Hello.
I created a master account on the Opensearch console.
After a few days, an error message says the Invalid username or password. Please try again.
It has occurred about three times now.
Also, when I create a new master account on the console, I don't see the old account.
How can we solve this problem?

Jeongho Kim · Accepted Answer

If your domain has a t2 or t3 type data node, that could cause the "Invalid username or password" error when the node is out of service.

Check out the related article.

[+] https://repost.aws/articles/ARVunUGO8oQ0mu7zNIAgqrGg/how-to-resolve-opensearch-cluster-performance-issues-with-t2-t3-burstable-instances

Kidd Ip · Answer

The error in Amazon OpenSearch Service usually relates to m@ster user authentication and domain access policies. When a new m@ster user is created, the previous account is automatically replaced, since OpenSearch does not support multiple m@ster accounts. Only the most recently set-up m@ster user is recognized by the service.

https://docs.aws.amazon.com/opensearch-service/latest/developerguide/handling-errors.html

https://docs.opensearch.org/latest/getting-started/communicate/

https://docs.aws.amazon.com/opensearch-service/latest/developerguide/handling-errors.html

https://docs.opensearch.org/latest/getting-started/communicate/

OpenSearch Invalid username or password. Please try again.

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