I must be missing something on the surface, but now I'm confused.
My spout emits a message (with id), which is processed by a subclass
of BaseBasicBolt. That bolt, in turn, emits numerous tuples which I can see
in storm UI. However, the dashboard displays Emitted = 0 for the spout.
Any idea why spout's "Emitted" counter might not be updated?
ps. the next() method of the spout is non-blocking, with sleep delay 50ms