mlsorensen opened a new issue, #6739:
URL: https://github.com/apache/cloudstack/issues/6739
##### ISSUE TYPE
* Bug Report
##### COMPONENT NAME
~~~
API, Storage
~~~
##### CLOUDSTACK VERSION
~~~
main
~~~
##### CONFIGURATION
PowerFlex, Datera storage
##### OS / ENVIRONMENT
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Information about the environment if relevant, N/A otherwise
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##### SUMMARY
If a VM is stopped, then the last host it was running on is removed from
cloudstack, the VM can fail to delete. This is because deletion attempts to
revoke host access to the VM's volumes and various storage plugins will throw
errors if the provided host is null.
Looking through the storage plugin implementations, it looks like this would
affect Datera and PowerFlex storage types only.
Generally this seems to be due to passing a null host object to the storage
provider's revokeAccess() method. Looked into a holistic fix but there are
several places where revokeAccess() can be invoked or could be invoked in the
future. Additionally, a storage plugin could choose to handle a null host as a
"revoke all" command.
##### STEPS TO REPRODUCE
1. Create VM with root on Datera or PowerFlex storage
2. Start/stop the VM
3. remove the host the VM ran on from CloudStack
4. attempt to delete the VM
##### EXPECTED RESULTS
VM should be deleted
##### ACTUAL RESULTS
Error is thrown during deletion
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