Install the Server on the new host.
Stop the Server so that you can copy the old database data to the new Server.
ambari-server stop
Restart the PostgreSQL instance.
service postgresql restart
Open the PostgreSQL interactive terminal.
su - postgres psql
Using the interactive terminal, drop the databases created by the fresh install.
drop database ambari; drop database ambarirca;
Check to make sure the databases have been dropped.
/list
The databases should not be listed.
Create new databases to hold the transferred data.
create database ambari; create database ambarirca;
Exit the interactive terminal.
^d
Copy the saved data from Back up Current Data to the new Server.
cd /tmp scp -i <ssh-key> root@
<original.Ambari.Server>/tmp/dbdumps/*.sql/tmp
Note compress/transfer/uncompress
as needed from source to destpsql -d ambari -f /tmp/ambari.sql psql -d ambarirca -f /tmp/ambarirca.sql
Start the new Server.
<exit to root>
ambari-server start
On each Agent host, start the Agent.
ambari-agent start
Open Ambari Web. Point your browser to:
<new.Ambari.Server>
:8080
Go to
Services > MapReduce
and use the Management Header to Stop and Start the MapReduce service.Start other services as necessary.
The new Server is ready to use.