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Bug 2057459 - [RHV][Warm] Migration fails during precopy/cutover while a snapshot operation is executed on the source VM
Summary: [RHV][Warm] Migration fails during precopy/cutover while a snapshot operation...
Keywords:
Status: CLOSED MIGRATED
Alias: None
Product: Migration Toolkit for Virtualization
Classification: Red Hat
Component: General
Version: 2.3.0
Hardware: Unspecified
OS: Unspecified
high
medium
Target Milestone: ---
: Future
Assignee: Arik
QA Contact: Maayan Hadasi
Richard Hoch
URL:
Whiteboard:
Depends On:
Blocks: 2062575
TreeView+ depends on / blocked
 
Reported: 2022-02-23 12:47 UTC by Maayan Hadasi
Modified: 2023-01-02 17:37 UTC (History)
4 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
: 2062575 (view as bug list)
Environment:
Last Closed: 2023-01-02 17:37:53 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)
plan.yaml (6.29 KB, text/plain)
2022-02-23 12:47 UTC, Maayan Hadasi 		no flags Details
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System ID Private Priority Status Summary Last Updated
Red Hat Issue Tracker   MTV-456 0 None None None 2023-01-02 17:37:52 UTC

Description Maayan Hadasi 2022-02-23 12:47:03 UTC 
Created attachment 1862946 [details]
plan.yaml

Description of problem:
Warm migration fails on the following error in the case that another snapshot operation (create/delete) is executed on the RHV source VM:

Fault reason is "Operation Failed". Fault detail is "[Cannot create Snapshot. The VM is performing an operation on a Snapshot. Please wait for the operation to finish, and try again.]". HTTP response code is "409". HTTP response message is "409 Conflict".


Version-Release number of selected component (if applicable):
MTV 2.3.0-32 / iib:178080
CNV 4.10.0-686 / iib:178572


How reproducible:
100%


Steps to Reproduce:
1. Start a warm migration plan using RHV VM
2. Create a snapshot on the source VM near the next precopy or the cutover time


Actual results:
Migration fails


Expected results:
MTV should wait for the snapshot operation to finish in order to run the next precopy/cutover


Attachments:
plan.yaml
Comment 2 Arik 2023-01-02 17:37:35 UTC 
This specific case, in which there is another create-snapshot operation going on, is not that likely/interesting but the migration really shouldn't fail when create-snapshot cannot be triggered (it can also happen, e.g., when the vm is migrated, possibly automatically by RHV)
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