DACache folder has become corrupted, leading to an xml read failure. (4377091)

DACache folder has become corrupted, leading to an xml read failure.

After upgrading to AA version 8.7, the Active Administrator Foundation Service might start to fail, and the following error messages could be seen in the AFSService-CrashDmp.log file.

Begin Dump
AFSService Dump file - 9/13/2024 1:25:24 PM
Source:System.Xml
There is an unclosed literal string. Line 23, position 74.
   at System.Xml.XmlTextReaderImpl.Throw(Exception e)
   at System.Xml.XmlTextReaderImpl.ParseAttributeValueSlow(Int32 curPos, Char quoteChar, NodeData attr)
   at System.Xml.XmlTextReaderImpl.ParseAttributes()
   at System.Xml.XmlTextReaderImpl.ParseElement()
   at System.Xml.XmlTextReaderImpl.ParseElementContent()
   at System.Xml.Linq.XContainer.ReadContentFrom(XmlReader r)
   at System.Xml.Linq.XContainer.ReadContentFrom(XmlReader r, LoadOptions o)
   at System.Xml.Linq.XElement.ReadElementFrom(XmlReader r, LoadOptions o)
   at System.Xml.Linq.XElement.Load(XmlReader reader, LoadOptions options)
   at System.Xml.Linq.XElement.Load(TextReader textReader, LoadOptions options)
   at Quest.AA.AFS.ASM.ADHealth.Analyzer.DAConfigurationHelpers.ValidateConfigurationFile(Uri fileName, String validationElementName, Boolean lockFile)
   at Quest.AA.AFS.ASM.ADHealth.Analyzer.DAConfigurationHelpers.GetFileNames(DAActiveDirectoryObjectType objectType, Boolean lockFile)
   at Quest.AA.AFS.ASM.ADHealth.Analyzer.DAConfigurationHelpers.GetCustomAlerts(LoggedOnUserContext userContext, Boolean lockFile)
   at Quest.AA.AFS.ASM.ADHealth.Analyzer.DAConfigurationHelpers.GetAllAlerts(LoggedOnUserContext userContext, Boolean lockFile)
   at Quest.AA.AFS.ASM.ADHealth.Analyzer.DANotificationProvider.GetNotifications(Boolean lockFile)
   at Quest.AA.AFS.ASM.ADHealth.Analyzer.DANotificationProvider.AddSnmpNotification()
   at Quest.AA.AFS.Loader.<>c.<<CreateDefaultSnmpNotification>b__31_0>d.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   at System.Threading.QueueUserWorkItemCallback.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem()
   at System.Threading.ThreadPoolWorkQueue.Dispatch()
End Dump


--------------------------------------------------------------------------------------------------------------------------------------------------


Begin Dump
AFSService Dump file - 9/13/2024 11:38:27 AM
Source:System.Xml
Root element is missing.
   at System.Xml.XmlTextReaderImpl.Throw(Exception e)
   at System.Xml.XmlTextReaderImpl.ParseDocumentContent()
   at System.Xml.Linq.XDocument.Load(XmlReader reader, LoadOptions options)
   at System.Xml.Linq.XDocument.Load(TextReader textReader, LoadOptions options)
   at Quest.AA.AFS.ASM.ADHealth.Analyzer.DANotificationProvider.GetNotificationDocument()
   at Quest.AA.AFS.ASM.ADHealth.Analyzer.DANotificationProvider.GetNotifications(Boolean lockFile)
   at Quest.AA.AFS.ASM.ADHealth.Analyzer.DANotificationProvider.AddSnmpNotification()
   at Quest.AA.AFS.Loader.<>c.<<CreateDefaultSnmpNotification>b__31_0>d.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
   at System.Threading.ExecutionContext.RunInternal(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state, Boolean preserveSyncCtx)
   at System.Threading.QueueUserWorkItemCallback.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem()
   at System.Threading.ThreadPoolWorkQueue.Dispatch()
End Dump

 

The following steps should fix this behavior:

WARNING: Note that any applied templates will no longer be applied to the DC / Domains / Sites after completing the following steps. It is strongly recommended to access Active Administrator console and take screenshots of any applied delegation links from the Active Templates module before proceeding.

1. Stop all Active Administrator services.
2. Locate Active Administrator shared folder, take a backup of the DACache folder and moved it out the shared folder.
3. Start all Active Administrator services.