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. Before the upgrade, make sure to back up the file located at /etc/ambari-agent/conf/ambari-agent.ini.
- Erase Ambari Agent: From the Ambari agents node, remove the installed packages before upgrading.
For RHEL:
Bash
yum remove ambari-agent -y
For Ubuntu:
Bash
apt remove ambari-agent -y
- Update Repository Files: Update ambari.repo (RedHat) or ambari.list (Ubuntu). For repositories, refer Ambari Repositories.
- Install Updated Agents:
Info
If you are upgrading from any Python 2 based ODP version, make sure to perform the below additional steps to install Python 3.11 and its dependencies on all the hosts before proceeding with the next step.
For Ubuntu 20/22:
Bash
apt install software-properties-common
add-apt-repository ppa:deadsnakes/ppa
apt update
apt-get install python3.11
curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
/usr/bin/python3.11 get-pip.py
pip3.11 install distro lxml rpm
For RHEL 8/9:
Bash
yum install python3.11 python3.11-pip
pip3.11 install distro lxml rpm
Proceed with the Agent installation.
For RHEL:
Bash
yum clean all
yum install ambari-agent -y
For Ubuntu:
Bash
apt clean
apt update
apt install ambari-agent -y
- Restore Configuration Files: Backup /etc/ambari-agent/conf/ambari-agent.ini and restore /etc/ambari-agent/conf/ambari-agent.ini
- Start Ambari Agents:
Info
Before starting the Ambari server, make sure to set the Python and Python3 alternatives.
Bash
sudo update-alternatives --install /usr/bin/python3 python3 /usr/bin/python3.11 1
sudo update-alternatives --install /usr/bin/python python /usr/bin/python3.11 1
Bash
ambari-agent start
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