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Extreme Management Center HTTP 503 Service Unavailable Due to Connect Module File Corruption

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TitleExtreme Management Center HTTP 503 Service Unavailable Due to Connect Module File Corruption
Symptoms
  • The Web GUI returns "503 - Service Unavailable".
  • The server.log contains the following reference to "Root elements do not match":
2017-07-21 07:37:43,299 ERROR [com.enterasys.fusion.mainApp.JBossMainApp] Error during initialization: java.lang.IllegalArgumentException: Root elements do not match.
Environment
  • Extreme Management Center (formerly NetSight)
  • All Software Releases
  • Connect (formerly Fusion)
Cause
One or more of the Connect XML configuration profiles have become null (0-bytes) or corrupt. Upon restart of Extreme Management Center server services will not start.
Resolution
  1. Delete all "small" .xml files less than 200b from the /usr/local/Extreme_Networks/NetSight/wildfly/standalone/configuration/connect or C:\Program Files\Extreme_Networks\NetSight\wildfly\standalone\configuration\connect subdirectory.
  2. Restart the Extreme Management Center service.
NOTE: Any XML modules that may have become corrupt which were previously configured will need to be reconfigured.
Additional notes
The server.log will report the following exception shortly after the system has been restarted:
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)

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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