Home Operation and Maintenance CentOS How to upgrade Zookeeper version on CentOS

How to upgrade Zookeeper version on CentOS

Apr 14, 2025 pm 06:39 PM
centos apache tool

ZooKeeper version upgrade guide under CentOS system

Be sure to be fully prepared before upgrading the ZooKeeper version. The following steps will guide you through the ZooKeeper version upgrade on CentOS:

  1. Backup an existing version: Before starting the upgrade, please back up the current ZooKeeper data directory and configuration files in case of accidents.

  2. Download the new version: Download the target version from the official Apache ZooKeeper website.

  3. Unzip the new version: Unzip the downloaded ZooKeeper compressed package to the directory of your choice.

  4. Configure the new version:

    • Copy the zoo_sample.cfg file and rename it to zoo.cfg .
    • Edit the zoo.cfg file and update the configuration according to the requirements of the new version, such as dataDir , clientPort , and server.X parameters.
    • For cluster environments, make sure that the myid file and configuration files for each node are updated correctly.
  5. Start the new version: Stop the old version of ZooKeeper service, and then start the new version of ZooKeeper service.

  6. Verify upgrade: Use the command line tool provided by ZooKeeper or the client to connect to a new instance to verify that the service and data are running normally.

Important tips:

Upgrade steps may vary depending on ZooKeeper version and specific requirements. If you upgrade to the major version, double check for compatibility issues. Before upgrading, it is highly recommended that you read the release notes and upgrade guides for the new version to ensure a smooth completion of the upgrade process.

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