Hi folks, afaik, the existing ElasticsearchIO doesn't support alias, all operations are based on index name at the moment.
While alias is a powerful feature to manage indices (at least from ES5, an alias could be associated with more than one alias), there are multiple use cases which might need alias, e.g logging management. I would love to hear opinion from the community on whether or not we should support alias in ElasticsearchIO, and blockers or suggestion on implementation. Thanks Jing
