DWH ETL fails with : Failed running inventory job

Applies to

• Oncommand Insight (OCI)
• OnCommand Insight Datawarehouse (DWH)

Issue

DWH ETL connector fails.

Job Name : Inventory: connector '%ServerName%'.

Message :  
com.netapp.sanscreen.dwh.applications.inventory.InventoryException: Failed running inventory job
    at com.netapp.sanscreen.dwh.inventory.InventoryRunnerBean.run(InventoryRunnerBean.java:149)
    at com.netapp.sanscreen.dwh.inventory.InventoryRunnerBean.run(InventoryRunnerBean.java:71)
    at sun.reflect.GeneratedMethodAccessor968.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)
    at org.jboss.as.ee.component.ManagedReferenceMethodInterceptor.processInvocation(ManagedReferenceMethodInterceptor.java