I am trying to create a Elasticsearch date histogram aggregation using monthly intervals. For some reason, the month of November ends up getting two buckets - one for the start and end of month. The following is a screenshot from the Kibana Data Table visualization:
This is essentially doubling the metric values for the month of November which is bad news for reporting. I couldn't find anything in the docs relating to this issue... Any ideas as to why the aggregation is including two buckets for the month of November?