https://community.cloudera.com/t5/Support-Questions/Remote-Process-Group-error/m-p/203754#M165753 <A rel="user" href="https://community.cloudera.com/users/15398/taranapolekar.html" nodeid="15398">@TARANA POLEKAR</A><P>Correct, both instances of NiFi need to have the site-to-site properties configured.</P><P>Depending on your version of NiFi, the properties are:</P><P># Site to Site properties nifi.remote.input.host= nifi.remote.input.secure=false nifi.remote.input.socket.port= nifi.remote.input.http.enabled=true nifi.remote.input.http.transaction.ttl=30 sec</P> Mon, 24 Apr 2017 19:05:56 GMT Wynner 2017-04-24T19:05:56Z