How to update a elasticsearch cluster to new version when some field is not stored

Elastic Stack Elasticsearch
1

As the document said： If you have indices created in 5.x or before, you must reindex or delete them before upgrading to 7.6.2.

I have indices when some field have excluded from "_source" because these field are just index for datas outside the es cluster。 When updating, is these any thing I can do to just updating these indices in place but not reading data from outside database and rebuilding these indices？

2

This topic was automatically closed 28 days after the last reply. New replies are no longer allowed.