Failed to connect to backend system

[Former Member]

Hi,

I have installed EP 6.0 SR1 (on NetWeawer04) and in another server Visual Composer 6.0 sp3.

I configured 2 R3-System connection (in SSO and We also try to use a system configured whit User-Mapping).

When I browse Visual Composer I see all systems configured in Portal but when I try to search component I get the message:

"Failed to connect to backend system. Check your system definition and user privileges."

I find other messages in this forum and I check all suggestion.

System Configuration, Message mapping, permission, ecc... ecc...

I installed also portal add-on for Visual Composer.

All are checked, and the problem is still here.

Here the error in defaultTrace.trc:

#1.5#000C6E7C0B15004B00000001000009200003F25B62264563#1110899232733#com.sap.portal.portal#sap.com/irj#com.sap.portal.portal#mmanera#457####e8f5bce0956311d9baef000c6e7c0b15#SAPEngine_Application_Thread[impl:3]_18##0#0#Warning#1#/System/Server#Java###[PortalNode.fireEventOnNode.toEventListener] event=onNodeReadyEvent, target=GUIMachinePortalConnector.Dispatcher, operation failed

[EXCEPTION]

#1#java.lang.NullPointerException

at java.util.Hashtable.put(Hashtable.java:393)

at com.sapportals.portal.prt.pom.AbstractNode.putValue(AbstractNode.java:625)

at com.sap.guimachine.portalconnector.dispatcher.Dispatcher.doOnNodeReady(Dispatcher.java:262)

at com.sapportals.portal.prt.component.AbstractPortalComponent.handleEvent(AbstractPortalComponent.java:388)

at com.sapportals.portal.prt.pom.ComponentNode.handleEvent(ComponentNode.java:252)

at com.sapportals.portal.prt.pom.PortalNode.fireEventOnNode(PortalNode.java:369)

at com.sapportals.portal.prt.pom.AbstractNode.addChildNode(AbstractNode.java:340)

at com.sapportals.portal.prt.core.PortalRequestManager.runRequestCycle(PortalRequestManager.java:642)

at com.sapportals.portal.prt.connection.ServletConnection.handleRequest(ServletConnection.java:232)

at com.sapportals.portal.prt.dispatcher.Dispatcher$doService.run(Dispatcher.java:522)

at java.security.AccessController.doPrivileged(Native Method)

at com.sapportals.portal.prt.dispatcher.Dispatcher.service(Dispatcher.java:405)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)

at com.sap.engine.services.servlets_jsp.server.servlet.InvokerServlet.service(InvokerServlet.java:153)

at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)

at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.runServlet(HttpHandlerImpl.java:385)

at com.sap.engine.services.servlets_jsp.server.HttpHandlerImpl.handleRequest(HttpHandlerImpl.java:263)

at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:340)

at com.sap.engine.services.httpserver.server.RequestAnalizer.startServlet(RequestAnalizer.java:318)

at com.sap.engine.services.httpserver.server.RequestAnalizer.invokeWebContainer(RequestAnalizer.java:821)

at com.sap.engine.services.httpserver.server.RequestAnalizer.handle(RequestAnalizer.java:239)

at com.sap.engine.services.httpserver.server.Client.handle(Client.java:92)

at com.sap.engine.services.httpserver.server.Processor.request(Processor.java:147)

at com.sap.engine.core.service630.context.cluster.session.ApplicationSessionMessageListener.process(ApplicationSessionMessageListener.java:37)

at com.sap.engine.core.cluster.impl6.session.UnorderedChannel$MessageRunner.run(UnorderedChannel.java:71)

at com.sap.engine.core.thread.impl3.ActionObject.run(ActionObject.java:37)

at java.security.AccessController.doPrivileged(Native Method)

at com.sap.engine.core.thread.impl3.SingleThread.execute(SingleThread.java:94)

at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:162)

#1.5#000C6E7C0B15004B00000004000009200003F25B6226BB9F#1110899232764#com.sap.portal.connectors.R3#sap.com/irj#com.sap.portal.connectors.R3#mmanera#457####e8f5bce0956311d9baef000c6e7c0b15#SAPEngine_Application_Thread[impl:3]_18##0#0#Error#1#/System/Server#Plain###(R3/BW) Failed to get connection. Please contact your admin. #

#1.5#000C6E7C0B15004B00000006000009200003F25B6226BD42#1110899232764#System.err#sap.com/irj#System.err#mmanera#457####e8f5bce0956311d9baef000c6e7c0b15#SAPEngine_Application_Thread[impl:3]_18##0#0#Error##Plain###com.sap.guimachine.portalconnector.commandhandler.CommandException: Failed to connect to backend system. Check your system definition and user privileges.#

#1.5#000C6E7C0B15004B00000007000009200003F25B6226C13B#1110899232764#System.err#sap.com/irj#System.err#mmanera#457####e8f5bce0956311d9baef000c6e7c0b15#SAPEngine_Application_Thread[impl:3]_18##0#0#Error##Plain### at com.sap.portal.guimachine.htmlbkit.utils.CommandHandlerService.doDiscovery(CommandHandlerService.java:47)#

........

...

..

Thanks.

Alessandro

[Former Member]

I forget...

I have this problem with SAP R3 4.7 and not with 4.6