That would be pretty neat, in fact by modifying bin/flink-daemon.sh you'd end up having all managers listening for a remote debugger and it would be a problem if you want the JVM to suspend on start.
On Tue, May 17, 2016 at 2:22 PM, Greg Hogan <c...@greghogan.com> wrote: > I also just modify the startup scripts but would it be better to have > variants of env.java.opts specific to the JobManager, TaskManager, client, > etc.? > > On Tue, May 17, 2016 at 5:24 AM, Stephan Ewen <se...@apache.org> wrote: > > > Hey Stefano! > > > > I think that question is bound to come up again. I created a page in the > > Flink Wiki to document this. > > > > If you have a few moments, would be great if you could add your > description > > there: > > > > > https://cwiki.apache.org/confluence/display/FLINK/Remote+Debugging+of+Flink+Clusters > > (it is linked from the front page > > https://cwiki.apache.org/confluence/display/FLINK/Apache+Flink+Home ) > > > > Greetings, > > Stephan > > > > > > On Tue, May 17, 2016 at 4:26 AM, Vijay Srinivasaraghavan < > > vijikar...@yahoo.com.invalid> wrote: > > > > > Awesome, thanks Stefano!! > > > > > > On Monday, May 16, 2016 9:57 AM, Stefano Baghino < > > > stefano.bagh...@radicalbit.io> wrote: > > > > > > > > > I had to do it a couple of times. Wonderful experience to understand > the > > > inner workings of Flink and explore it while running. > > > I don't know if there's a preferred way to do this but this is how I > did > > > it: > > > > > > Edit the run configurations in IntelliJ, click the + icon in the upper > > left > > > corner, choose the "Remote" preset. > > > Under the "Settings" pane, fill in the remote host where you'll run > > Flink. > > > Copy the "Command line arguments for running remote JVM". > > > Go to the machine running Flink, choose the launch script you need to > > > "hijack" and append the copied arguments after the "java" command. Make > > > sure to set "suspend=y" if you want to make sure Flink doesn't start > > > without your debugger attached. > > > > > > Now simply run Flink with the script you tampered with and run the > > > debugger. Please note that if you set "suspend=y" Flink won't start > until > > > the debugger is attached to the process. Also beware that if the > machine > > > running Flink is far away from the remote debugger you may suffer from > > > increased latency when debugging. > > > > > > Hope I've been helpful, happy hacking. :) > > > > > > On Mon, May 16, 2016 at 6:43 PM, Vijay Srinivasaraghavan < > > > vijikar...@yahoo.com.invalid> wrote: > > > > > > > How do I attach remote debugger to running Flink cluster from > IntelliJ? > > > > Appreciate if anyone could share the steps? > > > > RegardsVijay > > > > > > > > > > > > > > > -- > > > BR, > > > Stefano Baghino > > > > > > Software Engineer @ Radicalbit > > > > > > > > > > > > > > > -- BR, Stefano Baghino Software Engineer @ Radicalbit
