When does the service's OnShutDown() gets called ?

[madankarmukta]

Hi ,

I want to commit the chages/ want to do some activity on service's OnShutuDown().B ut i found that It neven get's called ..when i shut down the system or when i power it off..in Both the cases call to OnShutDown not found.
I have my application running on Vista\Win server 2008 . CAn anybody tell me when does this OnShutDown() gets called.. ?

Thanks!

[balabaster]

I want to commit the chages/ want to do some activity on service's OnShutuDown().B ut i found that It neven get's called ..when i shut down the system or when i power it off..

On the contrary - OnShutDown() (when spelled correctly) gets called when the services is requested to stop. If it's not being called then something is stopping your service from closing down in a timely manner. I couldn't begin to hazard a guess at what that is without seeing any code.

The only thing I can think of is when you shut the system down it's slightly different than when you tell the service to stop in the services applet, in that if the service doesn't stop within the specified time frame - I think the default is 1 minute...unless you have Exchange Server installed and it is changed by default to 10 minutes (600000 milliseconds). Once this timeout occurs the service processes are terminated in an uncontrolled fashion, frequently their shutdown process isn't complete successfully, and in some cases the shutdown process isn't even started before the process is killed.

Sadly, I'm not sure if there's a way around this... maybe extend the timeout period to give your service more time to close. It requires a mod to the registry, so careful...

Here's the registry key:

HKEY_LOCAL_MACH INE\SYSTEM\Curr entControlSet\C ontrol\WaitToKi llServiceTimeou t

Just increase the value (remember, it's in milliseconds, so setting it to 60 thinking you're setting it to a minute won't help the situation). Of course, don't be shocked when it takes Windows longer to go down for a reboot.

[madankarmukta]

Thanks for the update ..

You mean to say for every service there is the timeperiod defind under WaitToKillServi ceTimeout value in the registry which stops the service after this much period of time .. Right ..?

Ohh.. Thanks..

But I am a bit crazy about .. As you guessed .. that there might be something which is resisting my service from stoping in timely manner..If this is the case , what if there is the service with WaitToKillServi ceTimeout as 600000 , after every 10 minutes the servic's OnStutdown() should get called..i.e. The Logs should get printed .. as i did in my test application ..If I have not mistaken you point..Please correct me if I am wrong.

If there is something which is stoping my service in the timely manner.. what could be it.. Can you please help me.. can you give me any suggestions ..

As per as the code is concern..
I created the simple windows service .. overrided OnStop(), OnShutDown(),On customeCommand( ) fun.. Rest are the common.. constructors.. etc.

Please let me know your feedback over this..

Again thank you..

[r035198x]

On the contrary - OnShutDown() (when spelled correctly) gets called when the services is requested to stop....

I may have misunderstood the response but OnshutDown gets executed when the operating system is shutdown rather than when the service is stopped.

[madankarmukta]

I may have misunderstood the response but OnshutDown gets executed when the operating system is shutdown rather than when the service is stopped.

Thanks for the Reply ..
But it doesn't get called when the systemt gets shut down..

Thanks!

[PRR]

OnShutDown() : get called when windows operating system is shutting down..
OnStop(): when the service is stopped either manually or otherwise...


To check for this try writing to a text file... onstart onstop n on shutdown...
Incase it doesnt seem to be working then there may be some error in the code ...
For best results use threads...

[madankarmukta]

Sory.. But it OnShutDown() never gets called when operating system get's shut down ..

Thanks!

[PRR]

Sory.. But it OnShutDown() never gets called when operating system get's shut down ..

Thanks!

Can u post some code ? wat have you written on ur onshutdown()? try this

[HTML]
public void OnShutDown()
{
Thread t2 = new Thread(new ThreadStart(thi s.Write));
t2.IsBackground = true;

t2.Start();
}

public void Write()
{
using (StreamWriter sw = File.CreateText (@"c:\DD" +".txt"))
{
sw.WriteLine("T his is my file.");

sw.Close();
}


}
[/HTML]

[madankarmukta]

Can u post some code ? wat have you written on ur onshutdown()?

Yes sure.. here is the OnshutDown which i overrriden..

protected override void OnShutdown()
{
//I am creating this file only for the windows version greater than 5.x
StreamWriter sw = File.CreateText (FILE_SHUTDOWN) ;
sw.WriteLine("S ystem Shutdown");
sw.Close();
}

The problem coming is FILE_SHUTDOWN is not gettong created .. which i am interested in

Thanks!

[madankarmukta]

Can u post some code ? wat have you written on ur onshutdown()? try this

[HTML]
public void OnShutDown()
{
Thread t2 = new Thread(new ThreadStart(thi s.Write));
t2.IsBackground = true;

t2.Start();
}

public void Write()
{
using (StreamWriter sw = File.CreateText (@"c:\DD" +".txt"))
{
sw.WriteLine("T his is my file.");

sw.Close();
}


}
[/HTML]

Hi,

I added your code into my service. Rebuild it.. Then I shut down the system..
Restart it.. But not found the fil;e DD.txt..Was I wrong anywhere while validating the workaround.

Thanks!