Windchill Directory Server status is Unavailable in Server Status page in Windchill cluster environment

127.0.0.1 server_machine_name localhost Windchill_Cluster_Alias

ERROR [ajp-bio-8012-exec-2] wt.util.jmx.WDSJMXConnector cdtmadmin - Error connecting to JMX URL: service:jmx:rmi:///jndi/rmi://xxxxxxxxx.xxxxx.xxx.xx:1689/org.opends.server.protocols.jmx.client-unknown
ERROR [ajp-bio-8012-exec-2] wtcore.jsp.jmx.serverStatus cdtmadmin - Failed to retrieve results from WindchillDS
java.rmi.ConnectException: Connection refused to host: 127.0.0.1; nested exception is: 
java.net.ConnectException: Connection refused
at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:613)
at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:210)
at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:196)
at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:122)
at javax.management.remote.rmi.RMIServerImpl_Stub.newClient(RMIServerImpl_Stub.java:53)
at javax.management.remote.rmi.RMIConnector.getConnection(RMIConnector.java:2338)
at javax.management.remote.rmi.RMIConnector.connect(RMIConnector.java:288)
at javax.management.remote.JMXConnectorFactory.connect(JMXConnectorFactory.java:259)
at wt.util.jmx.WDSJMXConnector.getWDSJMXConnector(WDSJMXConnector.java:269)
at wt.util.jmx.WDSJMXConnector.getWDSJMXConnector(WDSJMXConnector.java:235)
at org.apache.jsp.wtcore.jsp.jmx.serverStatus_jsp._jspService(serverStatus_jsp.java:543)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:390)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at wt.httpgw.filter.WTContextBeanFilter.doWithWtContextBeanHandler(WTContextBeanFilter.java:98)
at wt.httpgw.filter.WTContextBeanFilter.doFilter(WTContextBeanFilter.java:58)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at wt.servlet.CompressionFilter.doFilter(CompressionFilter.java:248)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at wt.servlet.RequestInterrupter.doFilter(RequestInterrupter.java:327)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at wt.servlet.ServletRequestMonitor.doFilter(ServletRequestMonitor.java:1594)
at wt.servlet.ServletRequestMonitorFilter.doFilter(ServletRequestMonitorFilter.java:56)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:407)
at org.apache.coyote.ajp.AjpProcessor.process(AjpProcessor.java:200)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:310)
at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:897)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:919)
at java.lang.Thread.run(Thread.java:738)
at org.apache.tomcat.util.threads.TaskThread.run(TaskThread.java:77)
Caused by: java.net.ConnectException: Connection refused
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:381)
at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:243)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:230)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:377)
at java.net.Socket.connect(Socket.java:539)
at java.net.Socket.connect(Socket.java:488)
at java.net.Socket.<init>(Socket.java:385)
at java.net.Socket.<init>(Socket.java:199)
at sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(RMIDirectSocketFactory.java:34)
at sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(RMIMasterSocketFactory.java:140)
at wt.util.WrappedRMISocketFactory.createSocket(WrappedRMISocketFactory.java:160)
at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:607)
... 45 more