Citrix MCS may take several hours to delete failed tasks
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Article ID: CTX583783
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Updated On:
Description
Citrix MCS may take several hours to delete failed VM creation tasks.
Environment
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Resolution
You can follow steps below to terminate the Unused Image Cleanup task.
There are two ways to do this, either of which has same effect.
Scenario 1:
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Execute get-provtask command to obtain TaskId of unused image cleanup task. (Remember the TaskId. This value is used for ScopeID).
Get-ProvTask -Type DisusedImageCleanUp
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Check tasks in the DesktopUpdateManagerSchema, Workflow table and change the value to IsComplete. Update DesktopUpdateManagerSchema.Workflow set is complete = 1 where ScopeID = 'TaskId get from step1'
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Execute following command to terminate the task.
Get-ProvTask | where {$_.Type -eq "DisusedImageCleanup" -and $_.Status -ne "Finished"} | Stop-ProvTask
Scenario 2:
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Execute "get-provtask" command to obtain TaskId of "DisusedImageCleanup" task. (Remember the TaskId. This value is used for InstanceKey)
Get-ProvTask -Type DisusedImageCleanUp
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Check task in the DesktopUpdateManagerSchema, Activity table and change the value to IsComplete. Update DesktopUpdateManagerSchema.Activity set is complete = 1 where InstanceKey = 'TaskId obtained from step 1'.
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Execute following command to terminate the task.
Get-ProvTask|where {$_.Type -eq "DisusedImageCleanup" -and $_.WorkflowStatus -eq "Terminated"}|Remove-ProvTask

Note: Please ensure that commands are tested before use.
Problem Cause
Stop-provtask queries the database according to the task ID parameter if the task is active, it will call MS API to terminate. This takes a long time.
This task can be changed to inactive to delete it.
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