Website is working fine after IIS 10 is restarted why?

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1.00/5 (2 votes)

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I have deployed my MVC application in IIS.

Suddenly my application is not working.

It is serving login page after clicking the button it is showing the error.

I have checked connection string and sql server all are correct.

Then i restarted the IIS then application working fine. Why?

What I have tried:

Set "Rapid-Fail Protection" -> "Enabled" to False.

Posted 24-Oct-18 2:32am

Bhushan@88

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Andy Lanng 24-Oct-18 8:34am

No idea. Why not show us the error?

Bhushan@88 25-Oct-18 11:08am

after waiting long time below error get displayed.

"Timeout expired. The timeout period elapsed prior to obtaining a connection from the pool. This may have occurred because all pooled connections were in use and max pool size was reached. "

Andy Lanng 25-Oct-18 12:20pm

sounds like a connectivity issue. I'm guessing the sql server is on a different machine? if it happens again, try pinging the sql server from the iis server

Richard Deeming 25-Oct-18 13:17pm

Sounds like you're opening lots of database connections, and not closing them properly.

Create the connections when you need them, and wrap them in using blocks:

using (SqlConnection connection = new SqlConnection("..."))
{
    ... Code to use the connection here ...
}

MadMyche 24-Oct-18 10:06am

System and IIS logs would be helpful to you in figuring out why this is happening.

ZurdoDev 24-Oct-18 10:24am

How would we know what you did wrong? Don't ignore the error, fix the error.

Bhushan@88 25-Oct-18 11:07am

Timeout expired. The timeout period elapsed prior to obtaining a connection from the pool. This may have occurred because all pooled connections were in use and max pool size was reached.

ZurdoDev 25-Oct-18 11:24am

So, you have a sql issue. Google the error and fix it.

Nathan Minier 24-Oct-18 15:03pm

Try just recycling the AppPool, which will re-initialize the application.

If it works after an AppPool refresh, you have a state value that is messing up your application (look for static values/classes). If not, most likely something is misconfigured in IIS.

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