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While deploying the CI/CD process with Sitecore 9 ARM Template, Maintenace.lock file came up when the Sitecore instance is started.

Talked to Microsoft Azure Dev Ops team and they pointed to us the following:

https://dev.sitecore.net/Downloads/Sitecore%20Commerce/90/Sitecore%20Experience%20Commerce%2090%20Initial%20Release/Release%20Notes

> Deploying to an Azure App Service may fail intermittently when deploying all of Sitecore XP, Sitecore XC, SXA, and SXA Storefront, and when "deployExmDds" is set to true. This occurs because the bootloader does not correctly remove the locks after has finished processing. Workaround: remove “App_Data\Maintenance_lock”. And if it exists, remove file "app_offline.htm". And, if file "default.htm" gets renamed to "default.htm.sitedown" then rename it back to "default.htm".

We are not really using E-Commerce and deployExmDds parameter is set to false in ARM template parameters.

Please let us know if you have come across a solution. Thanks.

Additional Notes:

When we have a look at the InstallJob.log under the D:\home\LogFiles the following were written:

1 2019-01-30 23:09:03,686 INFO Putting lock 1 2019-01-30 23:09:03,767 INFO Putting lock, done 1 2019-01-30 23:09:03,811 INFO Executing processor Sitecore.Cloud.Integration.Bootload.InstallJob.Processors.InstallAppOfflineProcessor 1 2019-01-30 23:42:23,281 INFO Putting lock 1 2019-01-30 23:42:23,359 INFO Putting lock, done 1 2019-01-30 23:42:23,390 INFO Executing processor Sitecore.Cloud.Integration.Bootload.InstallJob.Processors.InstallAppOfflineProcessor 1 2019-01-30 23:42:28,453 INFO Executing processor Sitecore.Cloud.Integration.Bootload.InstallJob.Processors.InstallAppOfflineProcessor, done 1 2019-01-30 23:42:28,505 INFO Executing processor Sitecore.Cloud.Integration.Bootload.InstallJob.Processors.PackageInstallProcessor 1 2019-01-30 23:42:28,562 INFO Installing package D:\home\site\wwwroot\App_Data\Transforms\WFFM.Cloud.Embed.CaptchaHandlers.sccpl 1 2019-01-30 23:42:28,896 INFO Installing package D:\home\site\wwwroot\App_Data\Transforms\WFFM.Cloud.Embed.CaptchaHandlers.sccpl, done 1 2019-01-30 23:42:28,922 INFO No packages to install, shutting down 1 2019-01-30 23:42:28,955 INFO Executing processor Sitecore.Cloud.Integration.Bootload.InstallJob.Processors.PackageInstallProcessor, done 1 2019-01-30 23:42:28,969 INFO Executing processor Sitecore.Cloud.Integration.Bootload.InstallJob.Processors.RemoveAppOfflineProcessor 1 2019-01-30 23:42:29,031 INFO Executing processor Sitecore.Cloud.Integration.Bootload.InstallJob.Processors.RemoveAppOfflineProcessor, done 1 2019-01-30 23:42:29,281 INFO Releasing lock 1 2019-01-30 23:42:29,312 INFO Releasing lock, done

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Yes, that's a Bootloader fails to install some module. Most likely it's a post step run failure. You can find installation logs in d:\home\LogFiles\InstallJob.log

Modules defined in azuredeploy.json, parameters\modules. After template run, transformations and post step info is stored under App_Data\Transforms.

You can delete Maintenance_lock, app_offline.htm- Sitecore will start and retry module installation.

| improve this answer | |
  • Thanks @michael We'll have a look at the InstallJob.log next time and let you know. – Min Thant Jan 15 '19 at 2:57
  • We had a look at the InstallJob.log. See above: I am not sure why sometimes it worked and sometimes it doesn't. – Min Thant Jan 30 '19 at 23:46

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