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  • Rik Helsen 670 posts 873 karma points
    May 18, 2016 @ 08:33
    Rik Helsen
    0

    Application restarts very frequently

    We have an old Umbraco website and i need to troubleshoot why the Umbraco core seems to be restarting every x minutes. Does anyone have some recommendations on finding the cause of this ?

    This is what it looks like in the Umbracolog table: enter image description here

    The Umbraco is version umbraco v 4.7.2 (Assembly version: 1.0.4794.25044) running UCommerce

    issue typically occures during hours when there is a higher load than usual on the website.

    i'd like to get to the bottom of this but find that i have very little information to work with...

    All suggestions/tips welcome! Thanks Rik

    Windows Eventlog

  • Manish 373 posts 932 karma points
    May 18, 2016 @ 08:50
    Manish
    0

    Rik

    IIS is probably configured to shutdown the application pool after N minutes of inactivity. Can you check this

    Manish

  • Rik Helsen 670 posts 873 karma points
    May 18, 2016 @ 08:56
    Rik Helsen
    0

    The issue usually occurs when there is a very high (real user) load... so it sounds a bit unlogical?

    Anyway it was set to 20 minutes of inactivity, this definatly didn't happen at the time when i check in Google Analytics

    thanks for the input!

  • Dennis Adolfi 1082 posts 6447 karma points MVP 5x c-trib
    May 18, 2016 @ 09:00
    Dennis Adolfi
    0

    Hi Rik.

    Are your server running Windows Server 2012 R2? It could be related to an issue with KB3052480.

    Check your logfiles and see if you find this line repeately:

    ---- INFO Umbraco.Core.UmbracoApplicationBase - [Thread 52] Application shutdown. Reason: ConfigurationChange
    

    In that case it could be releated to this issue: http://issues.umbraco.org/issue/U4-6338

    If this is your issue there is a hotfix for this: https://support.microsoft.com/en-us/kb/3052480

  • Rik Helsen 670 posts 873 karma points
    May 18, 2016 @ 09:02
    Rik Helsen
    0

    I just checked, we are on "Windows server 2012 Standard"

    enter image description here

  • Dennis Adolfi 1082 posts 6447 karma points MVP 5x c-trib
    May 18, 2016 @ 09:03
    Dennis Adolfi
    0

    Can you check if you have KB3052480 installed?

  • Manish 373 posts 932 karma points
    May 18, 2016 @ 09:00
  • Rik Helsen 670 posts 873 karma points
    May 18, 2016 @ 09:06
    Rik Helsen
    1

    interesting indeed, could be a match except for the windows server version... we're still on standard and the microsoft path is for 2012R2

    maybe i should consider updating the server and installing the patch :)

  • Dennis Adolfi 1082 posts 6447 karma points MVP 5x c-trib
    May 18, 2016 @ 09:07
    Dennis Adolfi
    1

    That might be a good idea.

    I saw in this thread: http://issues.umbraco.org/issue/U4-6338 that someone wrote:

    I just wanted to mention that I was experiencing this same problem (or an unmistakably similar problem) on a Windows Server 2012 R2 machine with Umbraco 7.2.8 despite not having KB3000850 or KB3007507. However, the hotfix still fixed the issue.

    So maybe this will help you.

    Did you check the logfiles?

  • Rik Helsen 670 posts 873 karma points
    May 18, 2016 @ 09:14
    Rik Helsen
    1

    I believe 4.x doesn't have logfile but only the logtable in the database? do correct me if i'm wrong!

  • Dennis Adolfi 1082 posts 6447 karma points MVP 5x c-trib
    May 18, 2016 @ 09:16
    Dennis Adolfi
    0

    Oh sorry, Umbraco 4 is prior my time. :)

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