Hello,
I’m having an issue getting NiFi to start correctly. Here’s my situation: I’m currently running v0.7.0. I have a production server and a test server, with identical configurations (OS, Java, Java security config, nifi versions, nifi configs, keystores/truststores, etc). When I run nifi via normal HTTP (e.g. no security) in both Prod/Test they both start & load the UI as expected. When I run nifi via HTTPs (e.g. security settings) the Test server starts and loads UI as expected. However, on the Prod system, I receive the following error and java does not bind to 8443: 2017-07-25 16:30:51,346 WARN [main] org.apache.nifi.web.server.JettyServer NiFi has started, but the UI is not available on any hosts. Please verify the host properties. I reviewed the source code and it looks like this error is logged when the “URLs” is empty. Here is what I *think* are the relevant properties from my nifi config, when trying to start up using TLS (running on both Prod & Test), again, Test starts fine, Prod throws the error above. # Enable TLS nifi.web.http.host= nifi.web.https.host=0.0.0.0 nifi.web.http.port= nifi.web.https.port=8443 nifi.security.keystore=<path_to_keystore> nifi.security.keystoreType=JKS nifi.security.keystorePasswd=<keystore_password> nifi.security.keyPasswd=<key_password> nifi.security.truststore=<path_to_trust_store> nifi.security.truststoreType=JKS nifi.security.truststorePasswd=<trust_store_password> nifi.security.needClientAuth=true Again, I’ve manually validated the correct paths, correct passwords to JKS files., etc. I’ve verified that there are no other processes binding to 8443 possibly blocking nifi from the port. I’ve tried changing the port number (e.g. to 8445), no effect I’ve turned off IPTables. Generally, I run nifi as a “nifi” user, however, I’ve also tried running it as root to see if that had an effect of allowing the UI on Prod to start…no impact. I’ve tried also starting up nifi with a blank/default flow file, no effect. Any thoughts/suggestions on what I can do next, short of uninstalling nifi and reinstalling? Thanks, Dan
