Hi Bobby, thanks for replay. I do not want to ask user for a question about each tuple. I want to change some tresholds, trun on/off processing of some part of the topology. For example when debugging I want to compute much more numbers than during normal run. Next I can define some control spout/bolt which can send control tuples. Eg. in GUI I need to have a calendar in which I can set during which days/hours it shoul process specific tuples. This control bolt than can send control tuple to all bolts processing tuples. Is this architecture wrong? Can I solve it in different way?
Stepan 2017-12-06 15:58 GMT+01:00 Bobby Evans <[email protected]>: > Storm is not designed for this type of use case. Storm is set up for > distributed processing on multiple nodes. A GUI running inside a bolt is > not something we really ever thought about. If you need to interact with a > user typically you will have some external state store, like a SQL DB or > Zookeeper. The bolt and the GUI can interact with each other over that, > but it should not be blocking. Asking a user a question about each tuple > that needs to be processed is not going to really work in storm, not sure > if you are doing this or not. What I have seen work are people that want > to trigger things in their topology like fail out of coloA for storing > results for the next 5 hours. > > - Bobby > > > On Wed, Dec 6, 2017 at 6:31 AM Stepan Urban <[email protected]> > wrote: > >> Hello, >> is it possible to use java Swing or JavaFX GUI in bolt? I need user >> interaction with bolt. In local mode there is no problem but how to solve >> it eg. on a single computer in cluster mode? >> >> Thanks >> Stepan >> >
