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Showing posts from February, 2021

Elasticsearch Error: Format version is not supported

When I downgraded Elasticsearch 7.10 to 7.6, I was not able to restart the elasticsearch service and was facing these errors: and  “Format version is not supported” After diagnosing the issue and going through a number of web URLs, I come to know that the following line in the elasticsearch.yml file will fix my issue. cluster.initial_master_nodes: ["x.x.x.x"] OR  cluster.initial_master_nodes:  master - node - a     I hope it will help someone and save their time too. Thanks!!! Enjoy Programming!! :)