Migration from Elastic Search 7.10 with xpack.security to Opensearch 2x

We have xpack.security setup on ElasticSearch and need to move to Opensearch

Is there any easy way to migrate with minimal downtime or would it be a case of disabling xpack.security, and doing a rolling cluster upgrade with Opensearch without security and then starting from scratch with security in Opensearch?

We are also thinking of reducing the number of nodes in Elasticsearch to allow a new cluster to be created and then importing the data into this

Hi @robertn !

One of the possible migration methods is the reindex API for your case.

Have you read the following topic?