I recently started using 8.5.3 version of Elasticsearch.I have some indices that were created in two earlier versions i.e. 7.17.0 and 6.2.3
Now when i while starting Elasticsearch for the version 8.5.3 i am getting the following error-
[2023-06-29T02:29:56,936][ERROR][o.e.b.Elasticsearch ] [DESKTOP-PFQE75S] fatal exception while booting Elasticsearchjava.lang.IllegalStateException: cannot upgrade node because incompatible indices created with version [6.2.3] exist, while the minimum compatible index version is [7.0.0]. Upgrade your older indices by reindexing them in version [7.17.0] first. at email@example.com/org.elasticsearch.env.NodeEnvironment.checkForIndexCompatibility(NodeEnvironment.java:529) at firstname.lastname@example.org/org.elasticsearch.env.NodeEnvironment.upgradeLegacyNodeFolders(NodeEnvironment.java:408) at email@example.com/org.elasticsearch.env.NodeEnvironment.<init>(NodeEnvironment.java:301) at firstname.lastname@example.org/org.elasticsearch.node.Node.<init>(Node.java:474) at email@example.com/org.elasticsearch.node.Node.<init>(Node.java:318)
Can anyone please help me to resolve this?
Can we temporarily bypass this particular check?
If not what do i need to do?Do i need to reindex these 6.x version indices?If yes can you please share some relevant link mentioning steps for the same?