Upgrade Ambari Agents

Before proceeding with the Ambari Agent Upgrade on all nodes where Ambari Agents are installed, ensure that you have stopped both the Ambari Server and Agents during the Ambari Server Upgrade. Prior to the upgrade, make sure to back up the file located at /etc/ambari-agent/conf/ambari-agent.ini.

1. Erase Ambari Agent: From the Ambari agents node, remove the installed packages before upgrading:

For RHEL:

yum remove ambari-agent -y

For Ubuntu:

apt remove ambari-agent -y

2. Update Repository Files: Update ambari.repo (RedHat) or ambari.list (Ubuntu). For repositories, refer Ambari Repositories.
3. Install Updated Agents:

For RHEL:

yum clean all

yum install ambari-agent -y

For Ubuntu:

apt clean

apt update

apt install ambari-agent -y

6. Restore Configuration Files: Backup /etc/ambari-agent/conf/ambari-agent.ini and restore /etc/ambari-agent/conf/ambari-agent.ini
7. Start Ambari Agents:

ambari-agent start