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We are planning to leverage OpenSearch for the XDR kind of project. We want to leverage most of the major features like Alerting, Detection, Machine Learning for Anomaly Detection, etc. So, I want to know that, are there any downsides of using OpenSearch instead of Elasticsearch for this particular use case.

I also didn’t find any proper comparison between Elasticsearch vs OpenSearch over the internet. So, can someone please provide the link or resource where I can have a detailed comparison?

user17133697
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OpenSearch is provided by AWS is it a kind of forked of ElasticSearch solution. Here you have the feature provided by OpenSearch. Your feature requests are present on this list.

To have more details and a nuanced point of view, you have to read this post provided by ElasticSearch.

And a paper that make a part of comparaison.

dadoonet
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YLR
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    it's not "kind of forked", it is a definitive fork. as such it's no longer Elasticsearch or Kibana :) – warkolm Oct 13 '21 at 01:26
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    I find it hard to believe that a post from elastic search themselves will provide the complete picture. They are incentivized to portray their own product as superior. – Empty Space Oct 18 '21 at 03:38