[Bug]: Backup-BcContainerDatabases fails with BC29 multitenancy containers

[mjegob]

BCContainerhelper version

6.1.16-preview2667550

Describe the issue

When running Backup-BcContainerDatabases on a container with BC29 (multitenant) it fails with:
The tenant 'tenant' is not mounted or does not exist.

Containers with <BC29 it works fine

Command or script used to produce the issue

Create a BC container with version 29
Run following command

$containerName = 'NameOfYourContainer'
Backup-BcContainerDatabases -containerName $containerName -bakFolder "C:\ProgramData\BcContainerHelper\Extensions\$($containerName)\my\"

Full output of the command or script

PS C:\Users\xyz> Backup-BcContainerDatabases -containerName $containerName -bakFolder C:\ProgramData\BcContainerHelper\Extensions\BC\my\
BcContainerHelper version 6.1.16-preview2667550
BC.HelperFunctions emits usage statistics telemetry to Microsoft
Running on Windows, PowerShell 5.1.26100.33158
Backing up CRONUS to C:\ProgramData\BcContainerHelper\Extensions\BC\my\app.bak
Backing up default to C:\ProgramData\BcContainerHelper\Extensions\BC\my\default.bak
The tenant 'tenant' is not mounted or does not exist.

Container Free Physical Memory: 19.0Gb
Disk C: Free 120Gb from 127Gb

Services in container BC:
- MicrosoftDynamicsNavServer$BC is Running
- MSSQL$SQLEXPRESS is Running

Backup-BcContainerDatabases Telemetry Correlation Id: 7bb02865-42a2-433a-a128-9935d372e93d
The tenant 'tenant' is not mounted or does not exist.
At C:\Program
Files\WindowsPowerShell\Modules\BcContainerHelper\6.1.16\ContainerHandling\Invoke-ScriptInNavContainer.ps1:314 char:25
+                         throw $errorMessage
+                         ~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : OperationStopped: (The tenant 'ten...does not exist.:String) [], RuntimeException
    + FullyQualifiedErrorId : The tenant 'tenant' is not mounted or does not exist.

Additional information

I already investigated into that and figured out it seems to be a problem with how Invoke-ScriptInBcContainer is called in Backup-BcContainerDatabases
It gets invoked with -useSession:$false

The error The tenant 'tenant' is not mounted or does not exist. comes from this line. It seems like the -ErrorAction SilentlyContinue is getting ignored.

I modified the function locally setting -ErrorAction to Ignore but it didnt work.
Then i tried -useSession:$true and it worked.

PS C:\Users\xyz> .\Test.ps1
Backing up CRONUS to C:\ProgramData\BcContainerHelper\Extensions\BC\my\app.bak
Backing up default to C:\ProgramData\BcContainerHelper\Extensions\BC\my\default.bak
Backing up tenant to C:\ProgramData\BcContainerHelper\Extensions\BC\my\tenant.bak

Does this happen every time?

Yes

Did this used to work?

No
Internal work item: AB#648571

[mjegob]

Alexander Holstrup (@aholstrup1) Hi, do you have any chance to look into this? 😊
Right now it's breaking our pipelines

Thanks in advance!