What Kafka is used for

Kafka is needed for supLink mobile to receive real-time alarms.

Installing Kafka

1. Download Kafka installation package on https://wordpressfreezonex.oss-accelerate.aliyuncs.com/package/kafka_zk_install_alone.tar.
2. On a server that is on the same network segment as supOS platform, copy the package to /root directory and decompress it.

tar -xvf /root/kafka_zk_install_alone.tar

3. Grant permission to the installation script.

chmod +x /root/zkinstall_scripts/dispatcher.sh

4. Change the IP address to the host IP and then install Kafka.

bash /root/zkinstall_scripts/dispatcher.sh your_host_IP

5. Check whether the installation is done.

source /etc/profile
jps

6. Check the robustness of Kafka process.

kill kafka_pid

7. Run jps again after a minute, see if Kafka is restarted.

Starting supOS Service

1. Access supOS installation path bin directory.

cd supOS_installation_path/bin

2. Open and edit env.sh file.

vi env.sh

3. Change Kafka address.

KAFKA=external_kafka_address:9012

4. Save the file and update supOS.

sudo bash update-modules.sh

info

To restore supOS, access the env.sh file, change Kafka IP back and update supOS.

5. Access Kafka server to check whether Kafka service is started.

cd /usr/local/kafka_2.12-1.0.2/bin
./kafka-console-consumer.sh --bootstrap-server Kafka_IP_address:9012
--topic supngin.streammodel.command

Uninstalling Kafka

1. Uninstall Kafka.

bash /root/zkinstall_scripts/uninstall.sh

2. Clear all data of external Kafka.

rm -rf /dam/