Understanding Storm Internals by Examples - Real-time Analytics with Storm and Cassandra - page 67

Quiz time
Q.1 State whether the following statements are true or false:
1. All components of reliable topologies use anchoring.
2. In the event of a failure, all the tuples are played back again.
3. Shuffle grouping does load balancing.
4. Global grouping is like a broadcaster.
Q.2 Fill in the blanks:
1. _______________ is the method to tell the framework that the tuple has been suc-
cessfully processed.
2. The _______________ method specifies the name of the stream.
3. The ___________ method is used to push the tuple downstream in the DAG.
Make changes to WordCount topology of the Storm-starter project to create a custom
grouping so that all words starting from a particular letter always go to same instance of the
WordCount bolt.