Grid Control EMGC_ADMINSERVER Target Shown Down Even It Is Up (Doc ID 1315177.1)

Last updated on JUNE 01, 2016

Applies to:

Enterprise Manager Base Platform - Version 11.1.0.1 to 11.1.0.1 [Release 11.1]
Information in this document applies to any platform.
Checked for relevance on 16-Jul-2013

Symptoms

Grid Contol  11.1.0.1 EMGC_ADMINSERVER shown as down even it is up and running.

The following errors are found in emagent.trc :
----------------------------------------------------------
2011-04-18 12:59:28,917 [nmefmgr_getJNIFetchlet] WARN JMX.generic logp.251 - IOException: cannot communicate to Target with serviceURL=service:jmx:t3s://BETSV051.BUZZI.US:7101/jndi/weblogic.management.mbeanservers.runtime for metric weblogic_j2eeserver:app_overview:: Couldn't connect to any host Cause: javax.naming.NamingException: Couldn't connect to any host [Root exception is org.omg.CORBA.COMM_FAILURE: vmcid: SUN minor code: 203 completed: No]
2011-04-18 12:59:28,917 [nmefmgr_getJNIFetchlet] WARN emd.fetchlets getMetric.387 - oracle.sysman.emSDK.emd.fetchlet.FetchletException: oracle.sysman.emSDK.emd.fetchlet.FetchletException: java.io.IOException: Couldn't connect to any host
oracle.sysman.emSDK.emd.fetchlet.FetchletException: oracle.sysman.emSDK.emd.fetchlet.FetchletException: java.io.IOException: Couldn't connect to any host
at oracle.sysman.emd.fetchlets.JMX.JMXFetchletWrapperBase.getMetric(JMXFetchletWrapperBase.java:102)
at oracle.sysman.emd.fetchlets.FetchletWrapper.getMetric(FetchletWrapper.java:382)
2011-04-18 12:59:28,997 [nmefmgr_getJNIFetchlet] WARN emd.fetchlets getMetric.393 - oracle.sysman.emSDK.emd.fetchlet.FetchletException: java.io.IOException: Couldn't connect to any host
oracle.sysman.emSDK.emd.fetchlet.FetchletException: java.io.IOException: Couldn't connect to any host
at oracle.sysman.emd.fetchlets.JMX.generic.JMXFetchlet.getMetric(JMXFetchlet.java:201)
at sun.reflect.GeneratedMethodAccessor4.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at oracle.sysman.emd.fetchlets.JMX.JMXFetchletWrapperBase.getMetric(JMXFetchletWrapperBase.java:99)
at oracle.sysman.emd.fetchlets.FetchletWrapper.getMetric(FetchletWrapper.java:382)

Cause

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