I haven't fully read this thread, but there is already a line in nifi's bootstrap.conf that you can uncomment:
# Enable Remote Debugging #java.arg.debug=-agentlib:jdwp=transport=dt_socket,server=y,suspend=n,address=8000 Change the port if desired, and then create a Remote Debug configuration in IntelliJ for that port. This will debug the main application, not bootstrap. On Tue, Oct 27, 2020 at 12:08 PM Darren Govoni <dar...@ontrenet.com> wrote: > > Hello, > So i was able to get intelliJ to debug nifi but only inside the bootstrap > process. It looks like nifi spawns a new process and that process does not > run the debug options. > > Is there a way to instruct nifi to enable debug port on its main process? > That will have the actual app code i need to trace. > > Thanks for any tips. Much appreciated! > Darren > > Sent from my Verizon, Samsung Galaxy smartphone > Get Outlook for Android > > ________________________________ > From: Mike Thomsen <mikerthom...@gmail.com> > Sent: Monday, October 26, 2020 10:15:33 PM > To: users@nifi.apache.org <users@nifi.apache.org> > Subject: Re: Run Nifi in IntelliJ to debug? > > Are you using a binary derived from the source code in your IDE? Like > a 1.12.1 binary and the source code from the release? > > On Mon, Oct 26, 2020 at 7:47 PM Russell Bateman <r...@windofkeltia.com> wrote: > > > > Hmmm... It's rare that I debug NiFi code. And it's also rare that I debug > > my own in that context since the NiFi test runner allows me to fend off > > most surprises via my JUnit tests. > > > > I think back in 2016, I was debugging a start-up problem involving NiFi > > start-up and incompatibility with the Java Flight Recorder. As I recall, I > > downloaded the relevant NiFi code sources matching the version of NiFi I > > was debugging remotely. I remember ultimately making a slight (and only > > temporary) change to NiFi start-up that fixed the problem. At that point I > > must have been building my own copy to have seen it fixed.. It had to do > > with the order in which NiFi was getting command-line arguments making it > > so the JFR wasn't running. I'd have to dig back to figure out what I was > > doing, but it's probably not too relevant to what you need to do. > > > > What do you need to see in this? > > > > Russ > > > > On 10/26/20 5:38 PM, Darren Govoni wrote: > > > > Correct. Primarily the nifi-web-api module and AccessResource class. For > > starters. > > > > Sent from my Verizon, Samsung Galaxy smartphone > > Get Outlook for Android > > > > ________________________________ > > From: Russell Bateman <r...@windofkeltia.com> > > Sent: Monday, October 26, 2020 7:37:13 PM > > To: Darren Govoni <dar...@ontrenet.com>; users@nifi.apache.org > > <users@nifi.apache.org> > > Subject: Re: Run Nifi in IntelliJ to debug? > > > > Darren, > > > > This is just Apache NiFi code out of NARs you want to step through or is it > > yours? You haven't stripped debug information or anything, right? > > > > Russ > > > > On 10/26/20 5:30 PM, Darren Govoni wrote: > > > > Kevin/Russel > > > > Thanks for the info. I did set things up this way. > > > > IntelliJ does connect to the nifi jvm and nifi runs and works but intellij > > isnt breaking on code it should. > > > > I did set the module where the code/classes are located (in the remote > > connection dialog) and i see the exception im tracking print on the console > > output but intellij never breaks. > > > > Is there an extra step needed? Generate sources? > > > > For future it would be nice if there was a maven goal for debug. > > > > Much appreciated! > > Darren > > > > Sent from my Verizon, Samsung Galaxy smartphone > > Get Outlook for Android > > ________________________________ > > From: Russell Bateman <r...@windofkeltia.com> > > Sent: Monday, October 26, 2020 4:09:50 PM > > To: users@nifi.apache.org <users@nifi.apache.org>; Darren Govoni > > <dar...@ontrenet.com> > > Subject: Re: Run Nifi in IntelliJ to debug? > > > > Darren, > > > > I was out this morning and didn't see your plea until I got in just now. > > Here's a step by step I wrote up for both IntelliJ IDEA and Eclipse (I'm > > more an IntelliJ guy). It also covers using an IP tunnel. > > > > https://www.javahotchocolate.com/notes/nifi.html#20160323 > > > > On 10/26/20 9:52 AM, Darren Govoni wrote: > > > > Hi > > Is it possible to run Nifi from inside IntelliJ with debugging such that > > I can hit the app from my browser and trigger breakpoints? > > > > If anyone has done this can you please share any info? > > > > Thanks in advance! > > Darren > > > > Sent from my Verizon, Samsung Galaxy smartphone > > Get Outlook for Android > > > > > > > >
