5. Graceful Shutdown of Services and EMR Cluster

Steps

A graceful shutdown can be performed in the following order:

1. Shutdown both Jupyter notebooks:

2. In the PuTTY Terminal, enter “Ctrl” and “C” keys together to terminate the consumer application. Then navigate to:

cd /usr/lib/kafka_2.11-0.10.2.1/bin

3. Execute the following commands in order, to shut down Apache Kafka server and Zookeeper server:

./kafka-server-stop.sh

./zookeeper-server-stop.sh

4. Close PuTTY Terminal and remember to terminate the AWS EMR Cluster (to avoid clocking unnecessary costs!)

This concludes the entire guide. Hope it has been helpful!