How Do I Clear Expired Data to Release Storage Space?

Run the following command to delete a single index data record.
curl -XDELETE http://IP:9200/Index_name

IP: the IP address of any node in the cluster
Run the following command to delete all Logstash data of a day. For example, delete all data from June 19, 2017:
For a cluster in non-security mode: curl -XDELETE 'http://IP:9200/logstash-2017.06.19*'

For a cluster in security mode: curl -XDELETE -u username:password 'https://IP:9200/logstash-2017.06.19' -k
- username: username of the administrator. The default value is admin.
- password: the password set during cluster creation
- IP: the IP address of any node in the cluster