I am trying to make an histogram with 3 sub-bucket but I get "Request to Elasticsearch failed:" with error :
"Trying to create too many buckets.
Must be less than or equal to:  but was . This limit can be set by changing the [search.max_buckets] cluster level setting."
I increased the search.max_buckets so I din't get the error, kibana stuck.
Are there other setting I have to configure more?
How can I calculate the buckets my search returns?