Hi Everyone, I have just started upgrading my cluster from 7.17.5 to 8.4. I completed the first node, but when I went to start the service, it complained that: [2022-10-31T17:08:08,683][ERROR][o.e.b.Elasticsearch ] [hostname] fatal exception while booting Elasticsearch java.lang.IllegalStateEx…

It looks like maybe the node metadata is out of date or something? elasticsearch/NodeEnvironment.java at 8.4 · elastic/elasticsearch · GitHub Is there a command to refresh that? Not having the easiest time sorting through where that metadata.oldestIndexVersion() gets set

Upgraded first node from 7.17.5 to 8.4. Won't start, claiming there is a 6.4.5 index, but I can't find it

Elastic Stack Elasticsearch

Brett_C November 1, 2022, 11:34pm 9

Thanks for the tip, Emily! I'll give that a try with this node as well and see how it goes.

100% agree that the Error message would be more useful if it listed the problematic indices.

Upgrade failed to 8.x

Topic		Replies	Views
Upgrade from 7.17.1 to 8.5.3 failed Elasticsearch	9	788	January 21, 2023
Cannot upgrade node because incompatible indices created with version [6.2.3] exist Elasticsearch	3	240	July 28, 2023
Upgrade failed to 8.x Elasticsearch	7	683	July 24, 2023
Elasticsearch won’t start after upgrade to 8.4.1 Elasticsearch	5	1062	October 15, 2022
Elasticsearch upgrade Elasticsearch	5	255	June 5, 2023

Upgraded first node from 7.17.5 to 8.4. Won't start, claiming there is a 6.4.5 index, but I can't find it

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