Application started after upgrade 3.5 to 3.6

I have set into general settings that page needs to contain www.

In URL there is www.site.domain.com

In host there is www.site.domain.com,site.domain.com

Is this correct?

I have also configured the ping service but each 20 minutes site continue to be restarted with application started into log.

IIS has a dedicated application pool with no timeout.

How can I do?

andreacaffy wrote:

If your site is a subdomain, like site.domain.com it DOES NOT include the www. prefix.

Store URL:  http://site.domain.com  (no www)
Host values:   site.domain.com

In General settings...does NOT require WWW

Automatically if i input site.domain.com is redirected to www.site.domain.com

I don't know why.

In addition site.domain.com has a dedicated dns panel with www A record.

I have also try to set auto ping service on your suggested site each 5 minutes: the result is that application Started now appears each 1 minute.

After delete auto ping at least each 5/6 minutes.

How can i understand the root cause?

andreacaffy wrote:

In Configuration >> Settings >> General and Miscellaneous Settings >> SEO >> change the WWW prefix requirement to: Pages should not have WWW prefix

Done, but i continue to have the same issue.

What do you suggest to do?

Honestly, I thought that would solve your problem.
If it were my site, I would try this (and hope):
Go to System >> Scheduled Tasks >> disable the Keep-alive task >> Save >> Restart Application >> go back and enable the Keep-alive scheduled task >> Save >> Restart Application.

Then watch your System log ..refresh it in 20 minutes and hope to not see "Application Started"...

If this doesn't work, then I would try disabling the Keep-alive task, and ONLY use the 3rd party monitoring service...
And at your 3rd party monitoring service, be certain that your URL for them to monitor is correct:
http://site.domain.com  (no WWW)

The nopCommerce application is designed to "stay awake" for 20 minutes whether you have visitors on the site or not...then it goes to sleep. You should never see 2 "Application Started" appear in system log within 20 minutes of each other..unless you manually click the link in upper right of admin to "Restart Application"

Also, since this problem only started after moving to a new server...

If you have access to IIS, go to the Application Pool for your nopCommerce site >> View Advanced Settings >>
Under Process Model section, make sure your Idle Time-out is set to 20 minutes, and that Ping Enabled is TRUE.

Also, in the Recycling section of Advanced Settings for your Application Pool, what value do you see for Regular Time Interval?

Unfortunately the first test failed.

Disable, Restart, Enable, Restart but same issue.
After 5 minutes Application Started.

Now i have tried to disable Keep Alive, Restart and Activate Monitor on "uptime robot".

The site is on a Plesk Panel. I have not access directly to IIS.

I will check with my provider.

Thanks

setting application pool recycling: 1740 minutes
idle timeout: 5 minutes

Ok, I'm sorry I could not solve your problem.

I asked about the Recycling/Regular Time Interval because your site acts like this value is set to 5 minutes, whereas, mine and most are set to 1740 minutes...so if no visitors access your site in a full day, the application pool will recycle itself once to free up memory allocation ..even if you have a keep-alive.

Good luck with your host.