es-rest: Allow a comma-separated list of Elasticsearch URIs
Description
We should allow a comma-separated list of Elasticsearch URIs in the opennms-es-rest feature and our code should attempt connections in round-robin fashion to each URI to distribute load to multiple Elasticsearch endpoints.
We should allow a comma-separated list of Elasticsearch URIs in the opennms-es-rest feature and our code should attempt connections in round-robin fashion to each URI to distribute load to multiple Elasticsearch endpoints.