After reading some Elasticsearch index tuning guides like How to Maximize Elasticsearch Index Performance and elastic's Tune for indexing speed I wanted to take a look at updating the refresh_interval.
We are using AWS Elasticsearch domains (elasticsearch version 6.2). There's no mention of refresh_interval on Cloudformation's doc site AWS::Elasticsearch::Domain
So I wanted to see what the default setting was for AWS Elasticsearch. Using the _settings API doesn't show the refresh_interval.
And specifying the refresh_interval doesn't show anything either.
Only returns an empty object.
How can I find the current refresh_interval for AWS Elasticsearch?