w3wp.exe process spikes occasionally

[trozzi]

Hello,

The w3wp.exe process spikes CPU occassionally.

What are the Able maintenance tasks that fire and under what conditions?

Could they be the reason this process spikes CPU processor time?

Thanks
Thomas

[mazhar]

Are you using McAfee VirusScan?

[mazhar]

Check the following blog post.
http://dotnetfreak.co.uk/blog/archive/2 ... prise.aspx

[trozzi]

It is running Symantec.

Are there any Able Cleanup process thta run from time to time?

Thanks

[mazhar]

Yes Able do have a maintenance routine.

[trozzi]

Can share with me what triggers it, and generally what it does?

Thanks
Thomas

[mazhar]

Maintenance Trigger
Application triggers the maintenance routine after a specified interval of time. You can view this interval in App_Data/ablecommerce.config file as name maintenanceInterval="360" where 360 means 360 minutes.

Operations
Maintenance routine performs many operations regarding to clean the db by removing anonymous records and ensuring the application integrity. For example the maintenance performs the following jobs

1- Maintain Users
2- Maintain Anonymous Checkouts
3- Clear Account Data
4- Maintain Page View Log
5- Maintain Email Subscriptions
6- Expire Subscriptions
7- Update Exchange Rates
8- Maintain Catalog
9- Maintain Audit Log

[trozzi]

Does the process start automatically on a timer or does a page hit trigger the cleanup?

Thanks
Thomas

[mazhar]

For each request its checked that weather maintenance is required on not. If at some request the mentioned amount of time is passed then the maintenance routine will be executed.