[DominoTree]

I've found OpenSearch to be a bit flaky but I haven't worked with it very seriously compared to ElasticSearch

(and before OpenSearch, the AWS-managed ElasticSearch absolutely hurt the ElasticSearch brand because of all of the issues Amazon created - it couldn't even rebalance shards, let alone add new nodes or switch to larger nodes without a blue-green deployment)

[everfrustrated]

This would be the same period when Elastic didn't even have a cloud offering....

[jillesvangurp]

Elastic bought found.no, which became Elastic Cloud in 2015. That was years before Amazon forked Opensearch. The AWS hosted Elasticsearch emerged around the same time.