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  • Malith Jayawardana 6 posts 88 karma points
    Nov 15, 2016 @ 10:44
    Malith Jayawardana
    0

    Cannot index queue items, the index is currently locked - V7.5.4

    Hi guys,

    We have an Umbraco installation that is used to host multiple domains.

    Setup is as follows:

    V7.5.4 (Nuget installed), Windows Server 2012 R2 Standard, Database: MSSQL Server 2014

    I've noticed that we get quite a few of the following errors:

    Provider=InternalIndexer, NodeId=-1
    System.Exception: Cannot index queue items, the index is currently locked,, IndexSet: InternalIndexSet
    

    We have experienced this in the past but it wasn't a regular occurrence. What used to be one or two errors a week has now become 20-30 a day and is something we need to resolve.

    Prior to the above mentioned error appearing in the logs the following also seems to be there:

    An unhandled exception occurred
    System.TimeoutException: Failed to enter the lock within timeout.
       at Umbraco.Core.MainDom.Acquire()
       at Umbraco.Core.ApplicationContext.Init()
       at Umbraco.Core.CoreBootManager.CreateApplicationContext(DatabaseContext dbContext, ServiceContext serviceContext)
       at Umbraco.Core.CoreBootManager.Initialize()
       at Umbraco.Web.WebBootManager.Initialize()
       at Umbraco.Core.UmbracoApplicationBase.StartApplication(Object sender, EventArgs e)
    

    I found that there has been a similar issue in a previous version.

    We were having a different issue with chronic application shutdowns in a previous version, so we tried uninstalling a hotfix as suggested in U4-6338 because we had run out of ideas. When that didn't fix the problem we installed it back, and currently Windows is patched.

    Just to confirm the hotfixes,

    KB3000850 (Removed from server at one point but was reinstalled)

    KB3052480 (Was always installed on the server)

    Has anyone experienced similar issues in V7.5.4? If so, do you have any advise on how to resolve the issue? Any help is appreciated.

  • Damiaan 442 posts 1301 karma points MVP 6x c-trib
    Nov 15, 2016 @ 13:06
    Damiaan
    0

    Have you looked at the MS hotfix ? Is your windows patched? Just to be sure it's not related to the U4-6669

  • Malith Jayawardana 6 posts 88 karma points
    Nov 16, 2016 @ 10:25
    Malith Jayawardana
    0

    Yes, Windows is patched.

    I can confirm that the following hotfixes are installed,

    KB3000850

    KB3052480

  • nickornotto 397 posts 900 karma points
    Nov 02, 2018 @ 08:14
    nickornotto
    0

    Have you resolved it?

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