Github user nickwallen commented on the issue:
https://github.com/apache/metron/pull/834
And for the record @anandsubbu did implement this as "fail fast" in his
original PR. So I think he is all for this. I was the one who talked him out
of failing fast here. I was wary of introducing a hard dependency between
Indexing and ES and didn't think that the "Install Index Templates" step would
fail often enough for this to be a problem. ---
