15457914325
78%
master: 80%

Ran 05 Jun 2025 03:44AM UTC

Jobs 1

Files 33

Run time 1min

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Committed 05 Jun 2025 03:43AM UTC coverage: 77.719%. Remained the same

Build # 15457914325

Build Type

push

github

Committed by

web-flow

Commit Message

CA-411766: Detach VBDs right after VM Halted (#6501)

In XSI-1915, MCS shutdowned a VM and tried to destroy VBD right after
MCS received the event which came from power_state's change and failed.
The failure reason is below:
1. The update for VM's power_state and the update for VBDs is not a
transaction, so the client may receive the event from the update for
power_state and operate VBDs before the update for VBDs.
2. The VM's running on supporter. The DB operation needs to send RPC to
the coordinator. This needs time.
3. Between the update for VM's power_state and the update for VBD, xapi
also updates the field pending_guildencs which needs at least 8 DB
operation. This also delays the update for VBDs.

It's not straightforward to add transactions for these DB operations.
The workaround is to move the update for pending_guildencs to the end of
the DB operation of VBDs, VIFs, GPUs, etc. So that VBD will be updated
after the update for VM's power_state immediately.

Run Details

3359 of 4322 relevant lines covered (77.72%)

0.78 hits per line

Jobs

ID	Job ID	Ran	Files	Coverage
1	python3.11 - 15457914325.1	05 Jun 2025 03:44AM UTC	33	77.72	GitHub Action Run

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