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We are deploying a Sitecore web application via CI/CD in Octopus to an Azure Staging slot.

The deployment randomly fails with the following error:

 New-AzureRMWebAppSlot : Cannot acquire exclusive lock to create, update or  
 At C:\Octopus\Work\20180727035133-565589-870\Script.ps1:5 char:1 
 + New-AzureRMWebAppSlot -Name TestCM -Slot Staging -ResourceGroupNam ... 
 + ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ 
 + CategoryInfo          : CloseError: (:) [New-AzureRmWebAppSlot], CloudException 
+ FullyQualifiedErrorId : Microsoft.Azure.Commands.WebApps.Cmdlets.DeploymentSlots.NewAzureWebAppSlotCmdlet 
The remote script failed with exit code 1 
The action Create and Deploy Staging Slot CM on the Octopus Server failed

The error does not always occur.

I followed microsoft's docs on checking for locks in Azure Portal and none are showing up.

How do I fix (or prevented) this issue ?

Improve this question
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  • Did you stop staging slot before deployment? We use VSTS to do this and never had such issues. We stop, deploy and start staging slot and swap.
    – Bartłomiej Mucha
    Jul 27, 2018 at 9:53
  • I forgot, after stopping slot we have "Wait" step set to 60 seconds. Sometimes slot is not fully stopped even the stop command returns.
    – Bartłomiej Mucha
    Jul 27, 2018 at 10:03
  • Someone else mentioned this to me and I confirmed that the staging slots was stopped before retrying (waited 5 minutes between attempts). The same issue persisted. I also tried stopping the main web app as well as all slots and still the same issue. The lock seems to be persisting in the background for a number of hours.
    – TomT
    Jul 29, 2018 at 10:16
  • 4
    I'm voting to close this question as off-topic because it is not a question about sitecore
    – Mark Gibbons
    Nov 7, 2018 at 10:26
  • Other Sitecore devs do seem to be hitting this issue. Other questions within the Azure tag along the same lines. e.g. sitecore.stackexchange.com/questions/7816/…
    – TomT
    Nov 7, 2018 at 22:32

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