Before you post: Your responses to these questions will help the community help you. Please complete this template if you’re asking a support question. Don’t forget to select tags to help index your topic! 1. Describe your incident: I am trying to upgrade a graylog cluster from elasticsearch to…

ERROR: Unsupported Elasticsearch version: 2.0.0 when using opensearch 2.9

bjmgeek (Brian Minton) September 5, 2023, 7:19pm 3

I solved this. I upgraded some of the nodes in my cluster to 5.1 but some got missed, and were still on 4.2

1 Like

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