Occasional "couldnt_resolve_host" error?

I'm running into this error quite a few times with my instance and I'm wondering why:

ETHON: performed EASY effective_url=https://.us-east-1.aws.found.io:/myindex/docs/_search?from=0&size=20 response_code=0 return_code=couldnt_resolve_host total_time=6.4e-05
ETHON: performed EASY effective_url=https://.us-east-1.aws.found.io:/myindex/docs/_search?from=0&size=20 response_code=0 return_code=couldnt_resolve_host total_time=4.9e-05

So it seems there was some sort of retry on the Rails gem's side, but it still couldn't resolve the host. This happened at approximately 2015-11-18 15:59:16 -0800

Does anyone know what's going on here and how I can protect against it? I'm using the rails gem and there doesn't seem to be a way to detect it until it actually executes the query. It's a gnarly error!

I should also mention that I am on ES 1.7.3