Storm High Availability and Failover - Real-time Analytics with Storm and Cassandra - page 113

Quiz time
Q.1 State whether the following sentences are true or false:
1. AMQP is a STOMP protocol.
2. RabbitMQ is not fail-safe.
3. An AMQP client is required to publish to RabbitMQ.
4. A mirrored queue can recover from the failure of nodes in a cluster.
Q.2 Fill in the blanks:
1. _______________ is the exchange where messages are delivered based on the
routing key.
2. _______________ is the exchange where messages are broadcasted.
3. The ___________ is an implementation of the Storm spout on the AMQP con-
sumer protocol.
Q.3 Execute the WordCount topology on a three node Storm cluster (one nimbus and two
supervisor nodes) clubbed with a two node RabbitMQ cluster:
• Try out various failure scenarios mentioned in the Building high availability of
components section
• Induce an artificial delay in message processing to calibrate the guaranteed pro-
cessing of the Storm topology