1. Scheduler mode is set to "Timer Method".
2. Only the default jobs are enabled, “PurgeUsersOnline, PurgeSiteLog, PurgeScheduleHistory, PurgeLogBuffer, SearchEngineSchedulerm SynchronizeFileSystem and eventNotification”. PurgeCache, SendLogNotification, StartEmailQueuedTasks and CleanupEmailQueuedTasks are not enabled.
3. They are not deleted. From time to time a module, often the Text/HTML or the SuperSKa Picture gallery, disappears from a page or the content suddenly is changed back to an early version or completely disappears. They never reappear, its often new added modules to a page that shows this behaviour. The module and it contend might have been added month ago and never changed since.
4. Some one just brows the site at notice that some information are missing. There are no traces of any errors in the eventlog at all. There are no users with any editorial or admin rights that had accessed the portal in the timeframe where modules start to disappear.
5. Only type of errors i can find are:
General Exception
AssemblyVersion: -1
PortalID: -1
PortalName:
UserID: -1
UserName:
ActiveTabID: -1
ActiveTabName:
RawURL:
AbsoluteURL:
AbsoluteURLReferrer:
UserAgent:
DefaultDataProvider:
ExceptionGUID:
InnerException: Value cannot be null. Parameter name: type
FileName:
FileLineNumber: -1
FileColumnNumber: -1
Method:
StackTrace:
Message: System.ArgumentNullException: Value cannot be null. Parameter name: type at System.Activator.CreateInstance(Type type, Boolean nonPublic) at DotNetNuke.Framework.Reflection.CreateObject(String TypeName, String CacheKey) at DotNetNuke.Services.Search.ModuleIndexer.GetModuleList(Int32 PortalID)
Source:
AssemblyVersion: -1
PortalID: -1
PortalName:
UserID: -1
UserName:
ActiveTabID: -1
ActiveTabName:
RawURL:
AbsoluteURL:
AbsoluteURLReferrer:
UserAgent:
DefaultDataProvider:
ExceptionGUID:
InnerException: Could not load type ''.
FileName:
FileLineNumber: -1
FileColumnNumber: -1
Method:
StackTrace:
Message: System.Web.HttpException: Could not load type ''. ---> System.ArgumentException: String cannot have zero length. at System.Reflection.Assembly._GetType(String name, Boolean throwOnError, Boolean ignoreCase) at System.Web.Compilation.BuildManager.GetType(String typeName, Boolean throwOnError, Boolean ignoreCase) --- End of inner exception stack trace --- at System.Web.Compilation.BuildManager.GetType(String typeName, Boolean throwOnError, Boolean ignoreCase) at DotNetNuke.Framework.Reflection.CreateType(String TypeName, String CacheKey, Boolean UseCache, Boolean IgnoreErrors)
Scheduler Event Failure
AssemblyVersion: -1
PortalID: -1
PortalName:
UserID: -1
UserName:
ActiveTabID: -1
ActiveTabName:
RawURL:
AbsoluteURL:
AbsoluteURLReferrer:
UserAgent:
DefaultDataProvider:
ExceptionGUID:
InnerException: Could not load type ''.
FileName:
FileLineNumber: -1
FileColumnNumber: -1
Method:
StackTrace:
Message: System.Web.HttpException: Could not load type ''. ---> System.ArgumentException: String cannot have zero length. at System.Reflection.Assembly._GetType(String name, Boolean throwOnError, Boolean ignoreCase) at System.Web.Compilation.BuildManager.GetType(String typeName, Boolean throwOnError, Boolean ignoreCase) --- End of inner exception stack trace --- at System.Web.Compilation.BuildManager.GetType(String typeName, Boolean throwOnError, Boolean ignoreCase) at DotNetNuke.Framework.Reflection.CreateType(String TypeName, String CacheKey, Boolean UseCache, Boolean IgnoreErrors)
THREAD ID: 8
TYPE: DotNetNuke.Services.Search.SearchEngineScheduler
EXCEPTION: Thread was being aborted.
RESCHEDULED FOR: 01-01-0001 01:00:00
SOURCE: STARTED_FROM_TIMER
ACTIVE THREADS: -2
FREE THREADS: 3
READER TIMEOUTS: 0
WRITER TIMEOUTS: 0
IN PROGRESS: 0
IN QUEUE: 7
The portal contains the standard modules plus MediaAnt GuestBook pro, BulkReg, Page Protection, Some UserGroup modules from Smart-Thinker, and SuperSKa picture gallery.