Dashboards return No Data Available after install of Dynatrace Oneagent product

Document ID : KB000097179
Last Modified Date : 18/05/2018
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Issue:
After recent changes to the environment including update of Linux patches and installation of the Dynatrace Oneagent all Dashboard View charts return No Data Available.
Environment:
All supported CA Performance Manager releases
Cause:
This key error observed in the PCService.log file is the clue to the cause:
INFO  | Model-Invoker-0          | 2018-05-18 10:51:58,576 | com.ca.im.portal.plugins.rib.models.RIBTableModel                
      | Model 2000029_2: viewTree.render
javax.xml.ws.soap.SOAPFaultException: Expected 1 request attribute, but found 2
    at org.apache.cxf.jaxws.JaxWsClientProxy.invoke(JaxWsClientProxy.java:156)
    <<<cut more 'at ...' java messages for brevity>>>
    at java.lang.Thread.run(Thread.java:745)
Caused by: org.apache.cxf.binding.soap.SoapFault: Expected 1 request attribute, but found 2
    at org.apache.cxf.binding.soap.interceptor.Soap11FaultInInterceptor.unmarshalFault(Soap11FaultInInterceptor.java:75)
    <<<cut more 'at ...' java messages for brevity>>>
    at org.apache.cxf.jaxws.JaxWsClientProxy.invoke(JaxWsClientProxy.java:134)
    ... 9 more

A third party tool from Vendor Dynatrace called Oneagent is breaking communication between the CA Performance Management caperfcenter_console service (runs the web UI) and the caperfcenter-devicemanager service (takes report queries and passed them to the Data Aggregator for a response, and back to the console service for rendering and display to the user).
Resolution:
CA does not support the running of 3rd party vendor tools on enterprise software installations of CA Performance Management.

Stop and disable the Dynatrace Oneagent.

Normally running "service oneagent stop" will resolve the problem.

No restart of CA Performance Management services is needed. Simply refresh the web browser tab after stopping the oneagent service.
Additional Information:
See here for more details on the faulty tool: ttps://www.dynatrace.com/platform/oneagent/