Github user alopresto commented on the issue:
https://github.com/apache/nifi/pull/2288
I built this and set up a local instance doing S2S without having to
populate the `nifi.web.http.host` value. I got a weird error message briefly
but I had put the wrong remote port in to the RPG configuration. With the
correct values, everything worked normally.
Error message for posterity/future recall:
`2017-11-27 19:01:38,897 ERROR [Site-to-Site Worker Thread-11]
o.a.nifi.remote.SocketRemoteSiteListener Unable to communicate with remote
instance null due to org.apache.nifi.remote.exception.HandshakeException:
Handshake with nifi://localhost:56899 failed because the Magic Header was not
present; closing connection`
Ran `contrib-check` and all tests pass. +1, merging.
---
