Hi @Roger Young What does status-nifi.bat report on the machine? Are there any Java processes that show up in your task manager? It's possible that if NiFi wasn't shutdown cleanly that it was unable to delete nifi.pid, nifi.status, and nifi.lock files and that the bootstrap logic is incorrectly assuming that means it is still running. If you determine that there is not a NiFi process running (task manager, status-nifi above) you could try moving those files out to another directory and then starting NiFi. ... View more

Hi @Ramesh Prasad The Hortonworks Data Flow page has a lot of good information on use cases and features. The Apache NiFi also has some good info on that front. Thanks, Bryan ... View more

No problem, one thing to know about the REST api is that the url paths are all prefixed with /nifi-api e.g. For localhost 8080 system diagnostics, you'd want to hit: http://localhost:8080/nifi-api/system-diagnostics ... View more

Hi @Christophe Le Rouzo The reporting tasks are set up during setup of NiFi and reside in the flow.xml.gz file. [1] Is there any chance that you manually replaced the flow.xml.gz on the nodes with a new one? In below link, please search for "flow.xml" for an explanation as well as a way to customize it during setup. [1] https://community.hortonworks.com/articles/57980/hdf-20-apache-nifi-integration-with-apache-ambarir.html Thanks, Bryan ... View more

Hi @Oliver Meyn I've never tried with HA proxy but I have configured Site To Site through a squid proxy with TLS. It didn't require much in the way of special configuration, here's what I had in my config file (this is for dev purposes, you would probably want to lock it down quite a bit). http_access allow all # Choose the port you want. Below we set it to default 3128. http_port 3128 You'll definitely want to use the HTTP site to site and configure your keystore and truststore for the client. Thanks, Bryan ... View more

Hey @Frank Maritato Unfortunately there is currently a bug preventing individual attribute names and values from being over 65535 bytes long when encoded as UTF-8. [1] There is currently a pull request under review to take care of the issue. Even when the issue is fixed though, it is generally not advisable to have a lot of data in the attributes because they are kept in-memory. Large values should usually be kept in the flowfile content if possible. Thanks, Bryan [1] NIFI-3389 ... View more

hey @spdvnz, any chance you could attach the whole stack trace? that is probably the class you're trying to initialize but it may have other dependencies ... View more