Came here to say something similar, except s/elastic search/solr/. I like redis, and use it for various things, but autocomplete is something I'd rather use a d

Came here to say something similar, except s/elastic search/solr/. I like redis, and use it for various things, but autocomplete is something I'd rather use a different tech to achieve. That all said, the comments above on redisearch and and lexicographic ranges are worth having a look at. If you already have redis in your stack and can't/don't want to add another tech and you don't need anything particularly advanced, that could be a better option than grabbing a lucene backed sledgehammer.