Bug 1258659 - [RFE] provide better monitoring to allow to know to which disk the VM is writing to after failed live snapshot.
Summary: [RFE] provide better monitoring to allow to know to which disk the VM is writ...
Keywords:
Status: CLOSED WONTFIX
Alias: None
Product: ovirt-engine
Classification: oVirt
Component: RFEs
Version: ---
Hardware: All
OS: All
unspecified
high
Target Milestone: ---
: ---
Assignee: Daniel Erez
QA Contact: Avihai
URL:
Whiteboard:
Depends On:
Blocks: 1018867
TreeView+ depends on / blocked
 
Reported: 2015-08-31 23:57 UTC by Christopher Pereira
Modified: 2019-11-19 14:18 UTC (History)
6 users (show)

Fixed In Version:
Doc Type: Enhancement
Doc Text:
Clone Of:
Environment:
Last Closed: 2019-11-19 14:18:43 UTC
oVirt Team: Storage
Embargoed:
ylavi: ovirt-future?
ylavi: planning_ack?
ylavi: devel_ack?
ylavi: testing_ack?


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System ID Private Priority Status Summary Last Updated
Red Hat Bugzilla 1018867 0 high CLOSED [RFE] provide better monitoring to allow to know to which disk the VM is writing to after failed LSM. 2021-02-22 00:41:40 UTC

Internal Links: 1018867

Description Christopher Pereira 2015-08-31 23:57:11 UTC
== Description of problem ==

A failed snapshot creation or LSM (Live Storage Migration) requires the VM to be restarted.

The logs display:

"Failed to create live snapshot 'Auto-generated for Live Storage Migration' for VM 'test-vm'. VM restart is recommended."

It's nice to have this bug showing this hint, but restarting a VM because of a temporary network problem while doing a LSM is not affordable in production.

== How reproducible ==

Easy to reproduce.

== Steps to Reproduce ==

1. Configure host to fail during snapshot creation (we need to reproduce a "Failed to create live snapshot 'Auto-generated for Live Storage Migration' for VM 'XXXXXX'. VM restart is recommended." warning).
2. Create a snapshot (process must fail)
3. Check snapshots and compare with virsh output

== Actual results ==

Current snapshot displayed inside oVirt is wrong.
Check real active snapshot via virsh.
Workarround is to restart the VM.

== Expected results ==

oVirt must show correct results, without requiring a VM restart.

== Additional info ==

See: https://bugzilla.redhat.com/show_bug.cgi?id=1018867

Comment 1 Allon Mureinik 2015-09-01 12:59:37 UTC
When a live snapshost fails, we should query QEMU and adjust engine/vdsm's definition of the VM to match the "real" definition.

Comment 2 Tal Nisan 2019-11-19 14:18:43 UTC
This is an old RFE I don't think we will get to it since we haven't so far given capacity issues, if somehow it's really important for someone please reopen.


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