How to scale 10M+ Search Request with ElasticPress

NefisYemekTarifleri.com (Shortly we call as NYT. (not meaning NYTimes for us 🙂 ) is largest recipe site of TURKEY. We have more than 180k recipes that reaching millions of users. We switched our search infrastructure to Elasticsearch at the end of 2015. (I wrote about it.) Our cluster running smoothly for months.