Database Reference
In-Depth Information
Streams
Stream can be defined as a sequence of tuples or events that are unbounded by nature.
These streams are generally created in a parallel and distributed manner across the topo-
logy. Streams can be called the wiring or information flow channels between the spout and
bolts. These are carriers of unprocessed, semiprocessed, and processed information to and
from various task-performing components such as bolts and spouts. Streams are configured
while encoding the topology using a schema that gives names to the fields in the stream's
tuple.
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