I am trying to copy the data from our old Elasticsearch 6.2.4 to the new elasticsearch 7.6.1
I tried the following methods.
Snapshot and restore
Re-index from a remote cluster.
Both methods seem working but I got Yellow color health status in the new server.
Also, what does yellow mean? and I got that status in old elastic server 6.2.4.
What happened in the Elasticsearch 7.6.1 once the data is moved from Elasticsearch 6.2.4
I see all the indices in the yellow color status.
In the new Elasticsearch authentication failed immediately. I attached the log in the bottom. When I searched about that solution are clean up the data and point to the new data directory in the elasticsearch.
Basically, How to change the Yellow color health status to Green?
If I do the mappings manually in the new server and moved the data is that enough to get Green status?
I am trying to figure this out If possible can someone help with this?