I have fluent-bit sending logs to opensearch. I changed my regex pattern in fluent-bit, but it does not show my new fields in “Available fields” section in opensearch dashboard.
if you search via Dev Tools or Discover in OpenSearch Dashboards, do you see the Field?
Maybe it’s just a typo in your fluent-bit config.
My Second Idea would be that you have to reload your Index Pattern.
Here i have took a Screenshot from the OpenSearch Demo Page.