AutoSelect live migration fails with local storage

[Rubueno]

ISSUE TYPE

• Bug Report

COMPONENT NAME

UI, API

CLOUDSTACK VERSION

4.16.1

CONFIGURATION

N/A

OS / ENVIRONMENT

N/A

SUMMARY

When live migrating an instance and choosing "AutoSelect" it is not possible to live migrate an instance with local storage, while when selecting the destination host, it is possible to live migrate an instance with local storage.

STEPS TO REPRODUCE

- Spawn vm on local storage
- Live migrate instance in UI using "AutoSelect"
- Migration fails

CS calls migrateVirtualMachine instead of migrateVirtualMachineWithVolume

EXPECTED RESULTS

CloudStack to be smart enough to also live migrate instances with local storage when using "AutoSelect"
CS calls migrateVirtualMachineWithVolume instead of migrateVirtualMachine

ACTUAL RESULTS

• Error is returned:

Migration failed
Unsupported operation, VM uses Local storage, cannot migrate

[DaanHoogland]

@Rubueno what method are you using to migrate
Also, can you test with 4.17? I cannot migrate without choosing a target there.

[Rubueno]

@Rubueno what method are you using to migrate Also, can you test with 4.17? I cannot migrate without choosing a target there.

In this case I was using the UI to migrate. I cannot test with 4.17 yet due to internal release/update policies.

[shwstppr]

@Rubueno I don't think this is a bug but rather more of an enhancement. Currently, migrateVirtualMachineWithVolume doesn't support live VM migration without providing hostid. Therefore, to support this we need to,

• In the backend, refactor migrateVirtualMachineWithVolume API to support autoselect flag similar to migrateVirtualMachine
• In UI when Auto-assign is selected, it needs to list volumes to check if any of the volumes are on local storage and based on that call migrate API

[Rubueno]

I can agree marking this as an enhancement instead, although I would see it as a bug when the autoselect option is presented in the UI in cases when it is not supported.