While I agree with the sentiment, I think Shay (lead ES developer) has explicitly said that he does not consider ES to be a data store... yet. I think this is m

While I agree with the sentiment, I think Shay (lead ES developer) has explicitly said that he does not consider ES to be a data store... yet. I think this is mostly due to maturity. I help run a large ES cluster (with canonical data in MySQL), and I consider this cautious attitude by the ES developers to be a good thing.