This Role is necessary to enable the Carbonio Active Replica functionality, which is the backbone of Carbonio’s High Availability. It is built on Apache Kafka and ZooKeeper, both of which must be installed on the same Node. It is strongly advised to install both services on a dedicated Node for optimal performance; otherwise, you may directly use a Kafka + ZooKeeper SaaS solution.
Multiple Event Streaming Roles can be installed in a Carbonio architecture; however, you must ensure that the ZooKeeper configuration is duplicated on each Event Streaming Node.
Apache ZooKeeper deployment
Instructions are now available for Ubuntu; installation for RHEL should be nearly same, but official instructions will be available soon.
Preliminary Tasks and Requirements
Because all installation processes are performed via CLI, you must be familiar with it.
We also assume you are using ZooKeeper version 3.8.3. Other 3.8.x versions are available; verify their availability on the Apache ZooKeeper official page, and remember to update the version in the instructions below.
- In addition, to get ZooKeeper up and running, you’ll need:
- A dedicated user, carbonio-queue, shared a ZooKeeper data directory with Kafka: /var/lib/queue/zookeeper/.
Configuration
Create a ZooKeeper ID.
- ZOOKEEPER_ID=2O to 10.0.10.12 node IP
- ZOOKEEPER_ID=3O to 10.0.10.13 node IP
Make a System Unit file.
Apache Kafka Installation Requirements and Preliminary Tasks
- In addition, to get ZooKeeper up and running, you’ll need:
- a dedicated user, carbonio-queue, which ZooKeeper also uses