So you want a way to signal into a running topology to alter its behavior? This may be what you're looking for if so:
https://github.com/ptgoetz/storm-signals On Mon, Dec 11, 2017 at 5:38 PM, Stepan Urban <stepann.ur...@gmail.com> wrote: > 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 <bo...@apache.org>: > >> 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 <stepann.ur...@gmail.com> >> 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 >>> >> >
