![]() ![]() ![]() When you subscribe to a particular topic, you will receive only messages that were published to that particular topic. A Kafka topic is like a container for a group of related messages. Step 1 - Creating a Test Topic and Adding MessagesĪ Kafka message is the most basic unit of data storage in Kafka and is the entity that you will publish to and subscribe from Kafka. If you want to back up and import your Kafka data to a single server, you can skip this prerequisite. This prerequisite is required only if you are moving your Kafka data from one server to another. Kafka exporter install#Follow the article link in the previous prerequisite to install Kafka on the destination server. Optional for Step 7 - Another Ubuntu 18.04 server with Apache Kafka installed, to act as the destination of the backup. ![]() To install this version, follow these instructions on installing specific versions of OpenJDK. Kafka exporter how to#Follow the How To Install Apache Kafka on Ubuntu 18.04 guide to set up your Kafka installation, if Kafka isn’t already installed on the source server. PrerequisitesĪn Ubuntu 18.04 server with at least 4GB of RAM and a non-root sudo user set up by following the tutorial.Īn Ubuntu 18.04 server with Apache Kafka installed, to act as the source of the backup. As such, you will also back up ZooKeeper’s data in this tutorial. It stores information about cluster state such as consumer data, partition data, and the state of other brokers in the cluster. ZooKeeper is a critical component of Kafka’s operation. In this tutorial, you will back up, import, and migrate your Kafka data on a single Ubuntu 18.04 installation as well as on multiple Ubuntu 18.04 installations on separate servers. Importing and migrating backed up data is also useful when you are moving the Kafka instance to an upgraded or downgraded server due to a change in resource usage. Importing and migrating your backed up data to a separate server is helpful in situations where your Kafka instance becomes unusable due to server hardware or networking failures and you need to create a new Kafka instance with your old data. Data dumps of cluster and topic data are an efficient way to perform backups and restorations. Introductionīacking up your Apache Kafka data is an important practice that will help you recover from unintended data loss or bad data added to the cluster due to user error. The author selected Tech Education Fund to receive a donation as part of the Write for DOnations program. ![]()
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