Deploying and Managing Apama Applications > Using the Management and Monitoring Console > Concepts > Committed values and outstanding changes
Committed values and outstanding changes
EMM can configure and manipulate hosts and Apama components, and to do this it needs to maintain extensive configuration information.
Throughout EMM there are concepts of the current, committed configuration data and of outstanding changes, or working copy data.
On each Details Pane for a host or a specific component where you can supply configuration data, you will see two columns of values, as shown in the following illustration. The rightmost, grayed out values indicate the actual committed data – the values currently in use. The leftmost column is where you can provide the new values you would like to use. As long as they are just shown in the leftmost columns, these outstanding changes are just that – temporary working data. A component or host with unsaved changes will have a "*" suffix in its entry in the Navigation Pane. For changes to take effect you need to commit them, using the Commit Changes button (  ) on the Menubar, or the relevant menu items on the Group, Host and Component menus. Note that some component options cannot be changed once the component has started, and these will not take effect until the component is restarted, even after being committed.
The Commit Changes action scope varies according to what is selected when it is pressed:
*if a component is selected in the Navigation Pane, then all outstanding changes in that component, and only in that component, are committed (the Commit changes item on the Component menu is enabled in this case),
*if a host is selected in the Navigation Pane, then all outstanding changes in that host, and in all its components, are committed (the Commit changes item on the Host menu is enabled in this case),
*if Apama Managed Components is selected in the Navigation Pane, than all outstanding changes throughout all of EMM’s hosts and components are committed (the Commit changes item on the Group menu is enabled in this case).
Please refer to Managing hosts and Working with hosts for information on the Details Pane for hosts and for the specific components supported by the EMM console.
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