Issue while Sonar upgrade from 8.6-developer to 8.9.10-developer edition

[ganncamp (G Ann Campbell)]

Hi,

Welcome to the community!

This may help:

Error: [.... ElasticsearchUncaugh] cannot downgrade a node from version [7.17.1] to version [7.16.2]

Hello @ruchir_bharadwaj , Search nodes are Stateful Set, so the state of your previous installation will be reused for the new one. Have you tried to stop search nodes, dropping persistence volumes for those nodes, and start with the new version? I haven’t experienced that issue, but I think it could happen if you have upgraded Elasticsearch and you are trying to reuse the same data directory. What’s the strategy for your upgrade? Do you put down all the nodes and then start new one or are you…

Regarding your second problem, we try to keep it to one topic per thread. Otherwise it can get messy, fast. But this one’s easy. We no longer support Java 8. You’ll need to upgrade to Java 11 or 17 on your build agents.

 
HTH,
Ann