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EMC displays hang while loading

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TitleEMC displays hang while loading
Symptoms
EMC screens hang while displaying the loading icon
and error message in server.log
2017-07-21 07:37:43,299 ERROR [com.enterasys.fusion.mainApp.JBossMainApp] Error during initialization: java.lang.IllegalArgumentException: Root elements do not match.

loading hangs
Environment
  • EMC 8.0.2.42  
  • Extreme Management Center
Cause
This looks like a connect issue when starting up. + Fusion
which corrupted some .xml files in /usr/local/Extreme_Networks/NetSight/wildfly/standalone/configuration/connect

2017-07-21 07:37:43,299 ERROR [com.enterasys.fusion.mainApp.JBossMainApp] Error during initialization: java.lang.IllegalArgumentException: Root elements do not match.
at ch.elca.el4j.services.xmlmerge.merge.DefaultXmlMerge.doMerge(DefaultXmlMerge.java:208)
at ch.elca.el4j.services.xmlmerge.merge.DefaultXmlMerge.merge(DefaultXmlMerge.java:173)
at ch.elca.el4j.services.xmlmerge.config.ConfigurableXmlMerge.merge(ConfigurableXmlMerge.java:74)
at com.enterasys.fusion.common.ConfigurationService.initializeDefaultConfiguration(ConfigurationService.java:120)
at com.enterasys.fusion.mainApp.JBossMainApp.contextInitialized(JBossMainApp.java:96)
at io.undertow.servlet.core.ApplicationListeners.contextInitialized(ApplicationListeners.java:187)
at io.undertow.servlet.core.DeploymentManagerImpl$1.call(DeploymentManagerImpl.java:205)
at io.undertow.servlet.core.DeploymentManagerImpl$1.call(DeploymentManagerImpl.java:174)
Resolution
  • Delete all "small" .xml files less than 200b from the /usr/local/Extreme_Networks/NetSight/wildfly/standalone/configuration/connect directory

 
Additional notes
For an example, from the following :/usr/local/Extreme_Networks/NetSight/wildfly/standalone/configuration/connect directory remove all "small" files and the "0" sized backup:

-rw-r--r-- 1 root root 154 Jul 21 07:01 AffinityLinkHandler.xml
-rw-r--r-- 1 root root 11965 Jul 21 07:01 AirWatchHandler.xml
-rw-r--r-- 1 root root 157 Jul 21 07:01 AirWatchNotificationHandler.xml
-rw-r--r-- 1 root root 4449 Jul 21 07:01 AvayaHandler.xml
-rw-r--r-- 1 root root 21037 Jul 21 07:01 CasperHandler.xml
-rw-r--r-- 1 root root 3489 Jul 21 07:01 CheckPointHandler.xml
-rw-r--r-- 1 root root 163 Jul 21 07:01 DomainPortalHandler.xml
-rw-r--r-- 1 root root 156 Jul 21 07:01 FiberlinkMaaS360Handler.xml
-rw-r--r-- 1 root root 13808 Jul 21 07:01 FntCommandHandler.xml
-rw-r--r-- 1 root root 144 Jul 21 07:01 FortinetHandler.xml
-rw-r--r-- 1 root root 157 Jul 21 07:01 FortinetVlanSyncHandler.xml
-rw-r--r-- 1 root root 11079 Jul 21 07:01 fusion.xml
-rw-r--r-- 1 root root 159 Jul 21 07:01 GenericDistributedIpsHandler.xml
-rw-r--r-- 1 root root 143 Jul 21 07:01 GlueNetHandler.xml
-rw-r--r-- 1 root root 5532 Jul 21 07:01 HyperVHandler.xml
-rw-r--r-- 1 root root 4620 Jul 21 07:01 IBossHandler.xml
-rw-r--r-- 1 root root 3846 Jul 21 07:01 IfmapHirschClientHandler.xml
-rw-r--r-- 1 root root 3754 Jul 21 07:01 IfmapNotificationHandler.xml
-rw-r--r-- 1 root root 6680 Jul 21 07:01 ITSMHandler.xml
-rw-r--r-- 1 root root 3296 Jul 21 07:01 KerberosHandler.xml
-rw-r--r-- 1 root root 5307 Jul 21 07:01 LightSpeedHandler.xml
-rw-r--r-- 1 root root 167 Jul 21 07:01 LocationBasedServicesHandler.xml
-rw-r--r-- 1 root root 100 Jul 21 06:51 McAfeeEPOHandler.xml
-rw-r--r-- 1 root root 0 Jul 21 06:51 McAfeeEPOHandler.xml.backup
-rw-r--r-- 1 root root 3126 Jul 21 07:01 McAfeeMDMHandler.xml
-rw-r--r-- 1 root root 10158 Jul 21 07:01 MobileIronHandler.xml
-rw-r--r-- 1 root root 164 Jul 21 07:01 MSLyncSDNHandler.xml
-rw-r--r-- 1 root root 9037 Jul 21 07:01 NetSightHandler.xml
-rw-r--r-- 1 root root 147 Jul 21 07:01 NetworkOnDemandHandler.xml
-rw-r--r-- 1 root root 7275 Jul 21 07:01 OneViewStadiumReportHandler.xml
-rw-r--r-- 1 root root 4393 Jul 21 07:01 OpenStackHandler.xml
-rw-r--r-- 1 root root 13647 Jul 21 07:01 PaloAltoHandler.xml
-rw-r--r-- 1 root root 158 Jul 21 07:01 PurviewAssessmentHandler.xml
-rw-r--r-- 1 root root 2353 Jul 21 07:01 purviewMessages.xml
-rw-r--r-- 1 root root 5561 Jul 21 07:01 SCCMHandler.xml
-rw-r--r-- 1 root root 5553 Jul 21 07:01 SCVMMHandler.xml
-rw-r--r-- 1 root root 150 Jul 21 07:01 Sofia2Handler.xml
-rw-r--r-- 1 root root 142 Jul 21 07:01 SophosMdmHandler.xml
-rw-r--r-- 1 root root 3077 Jul 21 07:01 TaskSchedulerHandler.xml
-rw-r--r-- 1 root root 21961 Jul 21 07:01 VMWareHandler.xml
-rw-r--r-- 1 root root 4837 Jul 21 07:01 VWCleverRDCHandler.xml
-rw-r--r-- 1 root root 152 Jul 21 07:01 WirelessReportHandler.xml
-rw-r--r-- 1 root root 4197 Jul 21 07:01 XenDesktopHandler.xml
-rw---r-- 1 root root 6435 Jul 21 07:01 XenHandler.xml
-rw-r--r-- 1 root root 146 Jul 21 07:01 XenMobileHandler.xml

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