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wt.util.WTRemoteException only in cluster environment when using windchill API

SOLVED

wt.util.WTRemoteException only in cluster environment when using windchill API

Hi,

I have written a utility class in windchill and trying to access the methods of that java class outside windchill application using the below code.

url=http://<xyz.com>/Windchill;

RemoteMethodServer remoteMethodServer = RemoteMethodServer.getInstance(url);

  remoteMethodServer.setUserName(properties.getProperty(urladdress+".username"));

  remoteMethodServer.setPassword(properties.getProperty(urladdress+".password"));

//accessing the method of a utility class which is in windchill codebase directory

remoteMethodServer.invoke("getICNDetails","ext.abb.util.CNPendingTasks", null,argTypes,argValues);

I am getting the below exception only in clustered environment .

wt.util.WTRemoteException: Unable to invoke remote method; nested exception is:

        wt.util.WTRemoteException: Unable to locate method server; nested exception is:

        wt.util.WTRemoteException: Unable to locate method server; nested exception is:

        wt.util.WTRemoteException: Unable to get server; nested exception is:

        wt.util.WTRemoteException: Unable to locate server manager; nested exception is:

        java.rmi.ConnectException: Connection refused to host: <xyz.com>; nested exception is:

        java.net.ConnectException: Connection refused: connect

        at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:619)

        at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:216)

        at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:202)

        at sun.rmi.server.UnicastRef.newCall(UnicastRef.java:342)

        at sun.rmi.registry.RegistryImpl_Stub.lookup(Unknown Source)

        at wt.manager.RemoteServerManager.acquireServerManager(RemoteServerManager.java:590)

        at wt.manager.RemoteServerManager.getServerManager(RemoteServerManager.java:564)

        at wt.manager.RemoteServerManager.remoteInvoke(RemoteServerManager.java:500)

        at wt.manager.RemoteServerManager.getServer(RemoteServerManager.java:281)

        at wt.manager.RemoteServerManager.getServer(RemoteServerManager.java:265)

        at wt.method.RemoteMethodServer.getMethodServer(RemoteMethodServer.java:1022)

        at wt.method.RemoteMethodServer.invoke(RemoteMethodServer.java:620)

        at ext.abb.dashboard.WindchillStatus.callRMI(WindchillStatus.java:135)

        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

        at java.lang.reflect.Method.invoke(Method.java:483)

        at org.apache.el.parser.AstValue.invoke(AstValue.java:245)

        at org.apache.el.MethodExpressionImpl.invoke(MethodExpressionImpl.java:267)

        at com.sun.faces.facelets.el.TagMethodExpression.invoke(TagMethodExpression.java:105)

        at javax.faces.component.MethodBindingMethodExpressionAdapter.invoke(MethodBindingMethodExpressionAdapter.java:87)

        at com.sun.faces.application.ActionListenerImpl.processAction(ActionListenerImpl.java:102)

        at javax.faces.component.UICommand.broadcast(UICommand.java:315)

        at javax.faces.component.UIViewRoot.broadcastEvents(UIViewRoot.java:790)


Please do help me to fix my issue.


Regards,

Archana

1 ACCEPTED SOLUTION

Accepted Solutions

Re: wt.util.WTRemoteException only in cluster environment when using windchill API

Try creating a local hostfile mapping in the webapplication server directing the windchill URL to one of the slave nodes.

Thank you

Binesh Kumar

Barry Wehmiller

7 REPLIES 7

Re: wt.util.WTRemoteException only in cluster environment when using windchill API

Hi Archana,

Could you let us know the Windchill version. Are you running this code from master server with only BGMS configured?

Regards,

Bhushan

Re: wt.util.WTRemoteException only in cluster environment when using windchill API

Absolutely right, make sure you are running from a foreground node and also ensure that you have a cluster URL mapped to local IP in the hostfile so that the request won't get directed to loadbalancer.

Thank you

Binesh Kumar

Barry Wehmiller

Re: wt.util.WTRemoteException only in cluster environment when using windchill API

Hi Bhushan,

Thanks for ur reply .

I am running this java class from another web application which is not in any node of the cluster.It is entirely out side of this cluster environment.

We are using Windchill 10 M030 version.

Regards,

Archana

Re: wt.util.WTRemoteException only in cluster environment when using windchill API

Try creating a local hostfile mapping in the webapplication server directing the windchill URL to one of the slave nodes.

Thank you

Binesh Kumar

Barry Wehmiller

Re: wt.util.WTRemoteException only in cluster environment when using windchill API

Hi Binesh,

Thanks for ur reply.

The above is working fine

Can u please let me know why cant I use the load balancer IP address(Mapping) itself as any request to load balancer redirects to any of the slave nodes.

Regards,

Archana

Highlighted

Re: wt.util.WTRemoteException only in cluster environment when using windchill API

It looks like the load balancer is not forwarding the RMI requests to slave hosts. You can either have load balancer redirect requests hitting on those ports. You can also try whether RMI tunneling  over http is an option.

Thank you

Binesh Kumar

Barry Wehmiller

Re: wt.util.WTRemoteException only in cluster environment when using windchill API

Thank u Binesh Kumar for ur information. 

Regards,

Archana