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I keep getting the below error in sitecore CD servers every 5 seconds time.Is there any way to stop this error from happening.We dont use core DB for any security membership or for any login ourposes.But still we are getting this error very often.

ERROR Application error.
Exception: System.InvalidOperationException
Message: Could not find configuration node: databases/database[@id='core']
Source: Sitecore.Kernel
at Sitecore.Configuration.DefaultFactory.GetConfigNode(String xpath, Boolean assert)
at Sitecore.Configuration.DefaultFactory.CreateObject(String configPath, String[] parameters, Boolean assert)
at Sitecore.Configuration.DefaultFactory.GetDatabase(String name, Boolean assert)
at Sitecore.Configuration.DefaultFactory.GetDatabase(String name)
at Sitecore.Sites.SiteContext.get_Database()
at Sitecore.Pipelines.HttpRequest.DeviceResolver.Process(HttpRequestArgs args)
at (Object , Object )
at Sitecore.Pipelines.CorePipeline.Run(PipelineArgs args)
at Sitecore.Pipelines.DefaultCorePipelineManager.Run(String pipelineName, PipelineArgs args, String pipelineDomain, Boolean failIfNotExists)
at Sitecore.Pipelines.DefaultCorePipelineManager.Run(String pipelineName, PipelineArgs args, String pipelineDomain)
at Sitecore.Web.RequestEventsHandler.OnPostAuthenticateRequest(HttpContextBase context)
at Sitecore.Nexus.Web.HttpModule.​‏‭‬‌‪‫‭‏‭‫​‍​‮‬‭‪‏‍​‏‫‎‮​‫‮(Object , EventArgs )
at System.Web.HttpApplication.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStepImpl(IExecutionStep step)
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
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  • This issue is related to some config issue, do you have core DB reference in connectionstring.config?
    – Gaurav Agarwal
    Commented Oct 19, 2020 at 10:31
  • Hi Surya Thank you so much for your answer,Is there a way to find that specific function or code, I have tried but I couldnt able to locate it.
    – Harish
    Commented Oct 19, 2020 at 13:35
  • Hi Yes, we have core DB reference in connectionstring config file.
    – Jay
    Commented Oct 19, 2020 at 13:40
  • Did you try this - sitecore.stackexchange.com/questions/18217/…
    – Gaurav Agarwal
    Commented Oct 19, 2020 at 13:42
  • Gaurav , No i didn't try that , because the reason for hesitation since its not recommended by sitecore. So we dont want want to take that risk. So if we can able to locate particular code where we call core DB as reference, then it will be useful for us.
    – Jay
    Commented Oct 19, 2020 at 13:46

1 Answer 1

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2

The issue is that your content delivery server is trying to access core database and core database is not enabled on CD servers.

To fix this, you need to either find specific config/code/task which is calling "core" database and handle it accordingly or you should enable core database on content delivery by applying this patch . By the way enabeling core database on CD servers are not recommended.

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  • 1
    Surya Thank you so much for your answer, Is there a way to find that specific function or code, I have tried but I couldn't able to locate it.
    – Jay
    Commented Oct 19, 2020 at 13:51
  • @Jay Search for "Core" in your entire solution and also in showconfig.aspx. You might find code/custom config referring to core db.
    – Surya Narayan
    Commented Oct 20, 2020 at 14:19
  • 1
    Side note: this also applies to the master database.
    – Marcel Gruber
    Commented Feb 7 at 18:37

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