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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
 
Y Ma


Joined: 3/6/2009
Posts: 425

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
 
Sebastian Leupold


Sebastian Leupold's Avatar

Sebastian Leupold's Avatar

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Sebastian Leupold's Avatar

www.dnnwerk.de
Joined: 3/8/2004
Posts: 46212
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

dnnWerk - The DotNetNuke Experts   German Spoken DotNetNuke User Group

Speed up your DNN Websites with TurboDNN
 
New Post
7/3/2014 3:41 AM
 
Y Ma


Joined: 3/6/2009
Posts: 425
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
 
Y Ma


Joined: 3/6/2009
Posts: 425
These are the schedules under the host menu.
save image
 
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7/3/2014 4:29 AM
 
Sebastian Leupold


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Sebastian Leupold's Avatar

Sebastian Leupold's Avatar

www.dnnwerk.de
Joined: 3/8/2004
Posts: 46212
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

dnnWerk - The DotNetNuke Experts   German Spoken DotNetNuke User Group

Speed up your DNN Websites with TurboDNN
 
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