Upgrade Ambari Server

Follow the below steps to upgrade the Ambari version.

Stop Infra-solr Service

Stop the Infra-solr Service from Ambari-UI.

Stop Ambari Server and Agents

Stop Ambari Server

Take the backup of ambari-server configs.

/etc/ambari-server/conf/

Bash
    
 
ambari-server stop
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Stop Agents

Stop Ambari-agent on every cluster node.

Bash
    
 
ambari-agent stop
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Back up Ambari Database

Take the ambari-server backend database backup from the server host.

DB Backup Commands

Bash
    
 
mkdir /tmp/ambari-server_db_bckpmysqldump --databases ambari > /tmp/ambari-server_db_bckp/ambari_mysql_bckp.sql
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The upgraded version Ambari-2.7.8.2-3 supports only Python 3.11. Ensure that Python 3.11 is installed and configured on all the cluster nodes before proceeding with the upgrade.

Add Ambari Repo on Cluster Nodes

Back up the Old Ambari Repository

Run the following command:

Bash
    
 
mv /etc/yum.repos.d/ambari.repo /tmp/
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Retrieve the latest Ambari repository details from Accessing Acceldata Repositories and add it to all cluster nodes.

List the existing Ambari packages

On RHEL:

Bash
    
 
rpm -qa | grep ambari
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On Ubuntu:

Bash
    
 
apt list ambari-*
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Example Output (if the current Ambari version is 3.0.0.0-1):

Bash
    
 
ambari-infra-solr-3.0.0.0-1.noarchambari-agent-3.0.0.0-1.x86_64ambari-server-3.0.0.0-1.x86_64ambari-infra-solr-client-3.0.0.0-1.noarch
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Remove existing Ambari rpm’s

From the Ambari Server node, remove the installed packages before upgrading:

On RHEL:

Bash
    
 
yum remove ambari-server
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On Ubuntu:

Bash
    
 
apt remove ambari-server
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Note

Adjust the package names based on the installed versions on each node.
You can verify the installed packages before removing them using:

On RHEL:

Bash
    
 
rpm -qa | grep ambari
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On Ubuntu:

Bash
    
 
apt list ambari-*
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Make sure the Amabri packages are not installed.

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-commonadd-apt-repository ppa:deadsnakes/ppaapt updateapt-get install python3.11 curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py/usr/bin/python3.11 get-pip.pypip3.11 install distro lxml rpm
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For RHEL 8:

Bash
    
 
yum install python3.11 python3.11-pip pip3.11 install distro lxml rpm
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Install the latest Ambari-server only on ambari-server node.

Server Node

On RHEL:

Bash
    
 
yum clean allyum install ambari-server -y
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On Ubuntu:

Bash
    
 
apt cleanapt updateapt install ambari-server -y
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Set up Java 17

Make sure to install and update the default Java version as 17 on all the cluster nodes.

For RHEL:

Bash
    
 
yum install java-17-openjdk.x86_64yum install java-17-openjdk-devel.x86_64
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For Ubuntu:

Bash
    
 
apt-get install openjdk-17-jdk openjdk-17-jdk-headless
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Ensure not to remove the jdk8 packages at this state.

Bash
    
​x
 
update-alternatives --config java​There are 2 choices for the alternative java (providing /usr/bin/java).​  Selection    Path                                            Priority   Status------------------------------------------------------------* 0            /usr/lib/jvm/java-17-openjdk-amd64/bin/java      1111      auto mode  1            /usr/lib/jvm/java-11-openjdk-amd64/bin/java      1111      manual mode  2            /usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java   1081      manual mode​Press <enter> to keep the current choice[*], or type selection number: 1
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Set up Python 3.11

Bash
    
 
yum install python3.11
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Make sure to install and update the default Python version as 3.11 on all the cluster nodes.

Bash
    
 
update-alternatives --config python​There are 4 programs which provide 'python'.  Selection    Command-----------------------------------------------*  1           /usr/libexec/no-python   2           /usr/bin/python3   3           /usr/bin/python2 + 4           /usr/bin/python3.11Enter to keep the current selection[+], or type selection number: 4
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Update JSVC

Make sure to Instal the latest version of the bigtop-jsvc-1.2.4 on all the cluster nodes.

For RHEL:

Bash
    
 
yum install bigtop-jsvc* -y
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For Ubuntu:

Bash
    
 
apt install bigtop-jsvc
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Restore Config Files

Restore the ambari.properties and password.dat files, which are backed up at this step: Configuration Backup on this page.

Restore the ambari.properties file

Bash
    
 
cp /etc/ambari-server/conf_bkp/ambari.properties /etc/ambari-server/conf/
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Please override the file by prompting 'y'.

Restore the password.dat file

Bash
    
 
cp /etc/ambari-server/conf_bkp/password.dat /etc/ambari-server/conf/
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Update the java.home and stack.java.home

In this case, set JAVA_HOME to /usr/lib/jvm/java-17-openjdk

File path - /etc/ambari-server/conf/ambari.properties | grep -i java.home

Bash
    
 
java.home=/usr/lib/jvm/java-17-openjdkstack.java.home=/usr/lib/jvm/java-17-openjdkambari.java.home=/usr/lib/jvm/java-17-openjdkmpacks-v2.staging.path=/var/lib/ambari-server/resources/mpacks-v2
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Ambari Server Schema Upgrade

Before upgrading, ensure a database backup has been taken (as mentioned in Step 6).

Run the Ambari Server upgrade command:

Bash
    
 
ambari-server upgrade -v
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If you encounter the following error:

Bash
    
 
python version after sym links /usr/bin/python3.11Using python  /usr/bin/python3.11Upgrading ambari-serverTraceback (most recent call last):  File "/usr/sbin/ambari-server.py", line 28, in <module>    from ambari_commons.exceptions import FatalException, NonFatalException  File "/usr/lib/ambari-server/lib/ambari_commons/__init__.py", line 21, in <module>    from ambari_commons.os_check import OSCheck, OSConst  File "/usr/lib/ambari-server/lib/ambari_commons/os_check.py", line 25, in <module>    import distroModuleNotFoundError: No module named 'distro'
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Set up the Distro Module

Install the required dependencies on the ambari-server and ambari-agent nodes.

On RHEL:

Bash
    
 
yum install python3.11-pip -y
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Bash
    
 
pip3.11 install distro lxml
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On Ubuntu:

Bash
    
 
apt-get updateapt-get install python3-pippip3 install distro
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Retry the Upgrade again

Bash
    
 
ambari-server upgrade -v
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Response when prompted:

Bash
    
 
Ambari Server configured for MySQL. Confirm you have made a backup of the Ambari Server database [y/n] (n)? y​Enter 'y' to confirm.
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After the successful completion, you must see the following message.

Bash
    
 
Ambari Server 'upgrade' completed successfully.
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Start Ambari-server

Bash
    
 
ambari-server start
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Once started, verify that the Ambari UI is accessible using the same URL as before.

Verify Ambari Version

Verify the upgraded Ambari version in admin->about on top right corner in Ambari UI.

The Ambari version is upgraded successfully.

Upgrade Known Issues

During the migration, the existing GROUPS table in the Ambari database might cause conflicts due to its name. As a result, the Ambari UI might fail to start and throw the following error when attempting to log in.

Bash
    
 
Internal Exception: java.sql.SQLSyntaxErrorException: Table 'ambari.groups_info' doesn't exist​Error Code: 1146Call: SELECT group_id, group_name, group_type, ldap_group, principal_id FROM groups_info WHERE (group_id = ?)  bind => [1 parameter bound]Query: ReadObjectQuery(name="group" referenceClass=GroupEntity )
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To resolve this issue, rename the GROUPS table to groups_info in the Ambari backend database.

For MySQL

Bash
    
 
mysql>  use ambari;
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Bash
    
 
mysql>  show tables lIKE 'groups';
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The response is as follows.

Bash
    
 
+---------------------------+| Tables_in_ambari (groups) |+---------------------------+| groups                    |+---------------------------+
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Verify the data.

Bash
    
 
mysql>  select * from `groups`;
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Rename the table groups to groups_info using the following command.

Bash
    
 
mysql>  RENAME TABLE `groups` TO groups_info;
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Verify the same data as it was in groups table earlier. It must have the same data as it was earlier in groups table.

Bash
    
 
mysql>  select * from groups_info;
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For Oracle

Log into the Oracle server hosting the Ambari database.
Verify the existing GROUPS table.

Bash
    
 
SELECT table_nameFROM user_tablesWHERE table_name LIKE '%GROUPS%';
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The response is as follows.

Bash
    
TABLE_NAME--------------------------------------------------------------------------------------------------------------------------------GROUPS
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Rename the table groups to groups_info using the following command.

Bash
    
 
SQL> RENAME GROUPS TO GROUPS_INFO ;
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The successful rename operation results the output as TABLE Renamed.

Verify the data once renaming is completed.

For Postgres

Log in to the Postgres server hosting the Ambari database.
Verify the existing GROUPS table.

Bash
    
 
ambari=> \dt+
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The response is as follows.

Bash
    
 
.. public | extensionlink                 | table | ambari | 0 bytes    | public | groups                  | table | ambari | 16 kB      | ..
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Rename the table groups to groups_info using the following command.

Bash
    
 
ambari=> ALTER TABLE groups RENAME TO groups_info;
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Last updated on Jan 13, 2026

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