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HomeHomeUsing DNN Platf...Using DNN Platf...Performance and...Performance and...Scheduler Exception on event viewerScheduler Exception on event viewer
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7/3/2014 2:54 AM
 

I checked the event log in my DNN website and I can see this exception error in every 30 seconds. This is upgraded to DNN 7.3.0 now. I checked the schedular too. But I could not find it.

 

7/2/2014 11:31:23 PM
Scheduler Exception 
 
 
AssemblyVersion 7.3.0 PortalID -1 PortalName UserID -1 UserName ActiveTabI 

AssemblyVersion:7.3.0

PortalID:-1

PortalName:

UserID:-1

UserName:

ActiveTabID:-1

ActiveTabName:

RawURL:

AbsoluteURL:

AbsoluteURLReferrer:

UserAgent:

DefaultDataProvider:DotNetNuke.Data.SqlDataProvider, DotNetNuke

ExceptionGUID:c41bca4c-633d-4428-8247-020880735db9

InnerException:Sequence contains more than one matching element

FileName:

FileLineNumber:0

FileColumnNumber:0

Method:System.Linq.Enumerable.Single

StackTrace:

Message:

System.InvalidOperationException: Sequence contains more than one matching element
   at System.Linq.Enumerable.Single[TSource](IEnumerable`1 source, Func`2 predicate)
   at DotNetNuke.Services.Scheduling.Scheduler.CoreScheduler.LoadQueueFromTimer()
   at DotNetNuke.Services.Scheduling.Scheduler.CoreScheduler.Start()

 

Source:

Server Name: allium

Why is this happening? Please can you advise?

 
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7/3/2014 3:33 AM
 
please check Admin > Event Viewer for details of this issue and post it here.
Most likely, there are duplicate entries in Schduler table in the database.

Cheers from Germany,
Sebastian Leupold (Microsoft MVP)

dnnWerk - The DotNetNuke Experts   German Spoken DotNetNuke User Group

Speed up your DNN Websites with TurboDNN
 
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7/3/2014 3:41 AM
 
Hello Sebastian,

I know you are the best person to answer to this question and give the solution. :-)
Thank you for taking my issue.

The fist message has the event log message what copied from the event viewer. Is there any other info you need from me Sebastian ?

Thank You!
 
New Post
7/3/2014 3:51 AM
 
These are the schedules under the host menu.
save image
 
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7/3/2014 4:29 AM
 
for some reasons, there must be two results from timer queue, although it just expects a single row. ATM I don't see an issue in your data, but I remember one issue with webservers table , please check, whether it contains 2 entries with same webserver name (delete the inactive or oder duplicates).

Cheers from Germany,
Sebastian Leupold (Microsoft MVP)

dnnWerk - The DotNetNuke Experts   German Spoken DotNetNuke User Group

Speed up your DNN Websites with TurboDNN
 
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