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HomeHomeUsing DNN Platf...Using DNN Platf...Administration ...Administration ...SQL Server 2005 ProblemSQL Server 2005 Problem
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6/17/2007 7:36 AM
 
Sebastian Leupold


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

there might be various reasons for a CPU of 100 percent - you need to analyse, which application causes the high CPU usage, e.g. using process explorer from microsoft. Next you ca try to narrow down teh issue in this application, e.g. the SQL script that causes the load, if SQL server is affected.

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Sebastian Leupold

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6/18/2007 10:01 AM
 
Mitchel Sellers


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Joined: 1/24/2007
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Another item to check is to see when and how often the "Search Scheduler" task is running that is one that can take a large amount of CPU time on larger sites.

-Mitchel Sellers
Microsoft MVP, ASPInsider, DNN MVP
CEO/Director of Development - IowaComputerGurus Inc.
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6/18/2007 1:41 PM
 
Jeff Cochran


Joined: 6/3/2005
Posts: 2799

Also, is this SQL Server 2005 or SQL Server 2005 Express?  Express has a few limitations that may be causing some of this.  Like the buffer pool limts.

Jeff
 
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6/18/2007 1:53 PM
 
David O'Leary


www.efficionconsulting.com
Joined: 7/6/2003
Posts: 335

Seems I need to be more clear...

My problem was fixed, temporarily at least, by clearing the ScheduleHistory table. The GetSchedule StoredProcedure as it is written in 4.3.7 combined with thousands of records in the ScheduleHistory table was the problem.

I'm hopeful that the problem will not reoccur as hopefully the scheduled PurgeScheduleHistory event will be run on a regular basis as it was originally setup. As long as this is functioning the way it was written, this problem shouldn't occur for most people. But if something occurs on a particular site that keeps PurgeScheduleHistory from getting scheduled, the site will continually degrade.

The GetSchedule SP was re-written for 4.4.0. Hopefully that solves this problem for all newer installations though apparently, further improvements can be made for the SP as was proposed in the first ticket I referenced.

David O'Leary
Efficion Consulting
 
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HomeHomeUsing DNN Platf...Using DNN Platf...Administration ...Administration ...SQL Server 2005 ProblemSQL Server 2005 Problem


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