Deletes all Elasticsearch indexes and their contents. After calling this endpoint, it is necessary to schedule a new Elasticsearch indexing job to repopulate the indexes. Minimum server version: 4.1 ##### Permissions Must have manage_system permission.
Test the current Elasticsearch configuration to see if the Elasticsearch server can be contacted successfully. Optionally provide a configuration in the request body to test. If no valid configuration is present in the request body the current server configuration will be tested. Minimum server version: 4.1 ##### Permissions Must have manage_system permission.