Errors when starting application cluster after migrating

After you have migrated and you start the application cluster, you might have non-Business Automation Workflow applications that do not start and you might see errors in the log. This problem is caused when the proxy or HTTP server configurations that were present in your source environment need to be applied to your target environment.

The error messages are similar to the following message:

[12/17/14 17:59:49:094 CST] 000000ad CompositionUn E   WSVR0194E: Composition unit WebSphere:cuname=HTM_PredefinedTaskMsg_V8000_MyTopPS8011.AppTarget in BLA WebSphere:blaname=HTM_PredefinedTaskMsg_V8000_MyTopPS8011.AppTarget failed to start.

[12/17/14 17:59:58:282 CST] 000000ae CompositionUn E   WSVR0194E: Composition unit WebSphere:cuname=STPJM01-BBMA-PublishedAssertManagementApp in BLA WebSphere:blaname=STPJM01-BBMA failed to start.
[12/17/14 18:00:12:782 CST] 000000ad CompositionUn E   WSVR0194E: Composition unit WebSphere:cuname=STPJM01-BBMA-Media_Service_Toolkit_ImplementationApp in BLA WebSphere:blaname=STPJM01-BBMA failed to start.
[12/17/14 18:00:13:891 CST] 000000ad CompositionUn E   WSVR0194E: Composition unit WebSphere:cuname=HTM_PredefinedTasks_V8000_MyTopPS8011.AppTarget in BLA WebSphere:blaname=HTM_PredefinedTasks_V8000_MyTopPS8011.AppTarget failed to start.
[12/17/14 18:05:56:094 CST] 00000001 ContainerHelp E   WSVR0501E: Error creating component com.ibm.ws.runtime.component.CompositionUnitMgrImpl@27b43375
com.ibm.ws.exception.RuntimeWarning: com.ibm.ws.webcontainer.exception.WebAppNotLoadedException: Failed to load webapp: MyTopPS8011.Proxy_host
at com.ibm.ws.webcontainer.component.WebContainerImpl.install(WebContainerImpl.java:432)
...

To solve the problem, apply the same proxy or HTTP server configurations that were present in your source environment, and also update the virtual host configuration as needed. See the WebSphere® Application Server documentation for information about Setting up the proxy server and Configuring virtual hosts.

If you have any related customization in 100Custom.xml files, such as URL prefixes, they are automatically migrated to the IBM BPM virtual host during migration. See Security configuration properties for more information.