Upgrade the Ambari Database Schema
Upgrade Ambari Server database schema. On the host running Ambari Server:
ambari-server upgrade
Start the Ambari Server. On the host running Ambari Server:
ambari-server start
Start all Ambari Agents. On each host in your cluster running an Ambari Agent:
ambari-agent start
Open Ambari Web.
Point your browser to
http://<your.ambari.server>:8080where <your.ambari.server> is the name of your ambari server host. For example, c6401.ambari.apache.org.
![[Important]](../common/images/admon/important.png)
Important Refresh your browser so that it loads the new version of the Ambari Web code. If you have problems, clear your browser cache manually, then restart Ambari Server.

