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Backport changes to 2.7 #1090

Merged
merged 6 commits into from
Oct 8, 2024
Merged

Backport changes to 2.7 #1090

merged 6 commits into from
Oct 8, 2024

Commits on Oct 8, 2024

  1. MTV-1543 | Fix warm migration scheduler 

    Issue:
When running the warm migration with VMs more than the MaxInFlight disks.
The VMs over this number won't start the migration till the cutover.
Once the cutover is started the VMs which were not started migrate same
as in the old migration. So there is larger downtime.

Fix:
Ignore the cost when in `CopyingPaused`, this allows the other
Migrations to start as the cost is reduced when the VM disk transfer is
finished.

Note:
This patch also improves the cold migration as it ignores the count when
creating the VM so the other VM migrations can get started.
And dramaticially improves the warm migration time as we are not waiting
for the guest conversion as we already have the disk so we start the
guest conversion and do not halt the scheduler.

Fixes: https://issues.redhat.com/browse/MTV-1543

Signed-off-by: Martin Necas <[email protected]>
    @mnecas
    mnecas committed Oct 8, 2024
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  2. MTV-1573 | Allow scheduler to migrate VMs with more disks (kubev2v#1087) 

    Issue:
When migrating the VM using the warm migration with more disks than the
MAX_VM_INFLIGHT the VM won't get scheduled and won't start the
migration.

Fix:
Once the scheduler is empty the controller will start the migration of
the large VMs.

Fixes: https://issues.redhat.com/browse/MTV-1573

Signed-off-by: Martin Necas <[email protected]>
    @mnecas
    mnecas committed Oct 8, 2024
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  3. MTV-1537 | Optimalise the plan scheduler (kubev2v#1088) 

    Issue: When we start the warm migration with VM which has a lot of disks
we wait for the whole VM to get migrated. We do not ignore the disks
that has been already migrated. This can cause that when we have 2 VMs
with 10 disks each and on each there is one larger disk the whole
scheduler will be halted untill they finish. So even if the left 9 disks
will be done no migration will be started.

Fix: Subtract the finished disks from the disk count.

Fixes: https://issues.redhat.com/browse/MTV-1537

Signed-off-by: Martin Necas <[email protected]>
    @mnecas
    mnecas committed Oct 8, 2024
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  4. MTV-1555 | Fix virt-v2v with new name 

    Issue:
The MTV specifies the `-on` argument in the wrong place
/usr/bin/virt-v2v [...] -- epassaroMigrate-2 -on epassaromigrate-2

Fix:
/usr/bin/virt-v2v [...] -on newname -- oldname

Signed-off-by: Martin Necas <[email protected]>
    @mnecas
    mnecas committed Oct 8, 2024
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  5. MTV-1569 | Fail plan when the conversion pod fails (kubev2v#1085) 

    Issue:
When the virt-v2v pod fails the plan does not fail.

Signed-off-by: Martin Necas <[email protected]>
    @mnecas
    mnecas committed Oct 8, 2024
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  6. MTV-1569 | Migration code cleanup (kubev2v#1089) 

    Related to: kubev2v#1085
Fixes: https://issues.redhat.com/browse/MTV-1569

Signed-off-by: Martin Necas <[email protected]>
    @mnecas
    mnecas committed Oct 8, 2024
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