dependency relationships and join operations in Storm?

5 months ago

2 minutes

In Storm, handling dependencies and associated operations between different data streams can be achieved by defining Bolts. Bolts are the fundamental units for processing data in Storm, allowing for processing, transformation, and aggregation of data streams.

Initially, it is necessary to define two or more Spouts to generate different data streams. Subsequently, by defining Bolts to process these data streams, dependencies and associated operations between different data streams can be implemented within the Bolts.

Different data streams can be processed as needed within the execute method of the Bolt, and the streams can be merged, connected or manipulated when necessary. Multiple Bolts can also be defined to handle different data streams, and the dependencies between these Bolts can be specified by defining Grouping rules.

In general, handling dependencies and associated operations between different data streams in Storm can be achieved by defining appropriate Bolts, while also requiring a thoughtful design of the relationships and transfer methods between data streams.