Deleting portlets common across clusters
You can use the XMLAccess task to delete a portlet common across clusters. If the portlet was predeployed as a standard EAR, then each cluster must be first notified of the portlet removal before the EAR can be uninstalled. The administrator must use the XMLAccess application to import a <web-app> definition similar to the ones used in the previous two sections, except the action is to delete the definition instead of update it.
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Use XMLAccess to delete the portlet from the portal database; for example: <web-app action="delete" active="true" uid="com.ibm.wps.portlets.welcome" />
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Open the Deployment Manager WebSphere® Integrated Solutions Console.
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Click Applications > Application Types > WebSphere enterprise applications.
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Select the enterprise application definition.
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Click Uninstall.