Hope you can help me here. I did an upgrade of ES a few months ago to ES7.x . I was creating a new index but wanted to maintain the old one.
The problem I have is that I cannot use the older index, not sure what went wrong but I can't access the info. So I want to run two separate instances of ES which is feasible.
The problem is that I don't know which version was installed before the upgrade. Can you tell me how to identify the previous node version?
The error I get when opening the old index with ES6.1 is:
[node_meta_data] unknown field [node_version], parser not found
Can anyone help me?
Thanks in advance