Bug 998280
| Summary: | During commit a snapshot get error - live merge completed for an unexpected path | ||||||
|---|---|---|---|---|---|---|---|
| Product: | Red Hat Enterprise Virtualization Manager | Reporter: | vvyazmin <vvyazmin> | ||||
| Component: | vdsm | Assignee: | Federico Simoncelli <fsimonce> | ||||
| Status: | CLOSED DUPLICATE | QA Contact: | vvyazmin <vvyazmin> | ||||
| Severity: | low | Docs Contact: | |||||
| Priority: | unspecified | ||||||
| Version: | 3.3.0 | CC: | abaron, bazulay, fsimonce, hateya, iheim, lpeer, yeylon | ||||
| Target Milestone: | --- | Keywords: | Triaged | ||||
| Target Release: | 3.3.0 | ||||||
| Hardware: | x86_64 | ||||||
| OS: | Linux | ||||||
| Whiteboard: | storage | ||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2013-09-02 20:54:47 UTC | Type: | Bug | ||||
| Regression: | --- | Mount Type: | --- | ||||
| Documentation: | --- | CRM: | |||||
| Verified Versions: | Category: | --- | |||||
| oVirt Team: | Storage | RHEL 7.3 requirements from Atomic Host: | |||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||
| Embargoed: | |||||||
| Attachments: |
|
||||||
(In reply to vvyazmin from comment #0) > Steps to Reproduce: > Create VM with one or more disk > Create a snapshot > Preview a snapshot > Commit the snapshot > Successfully finish task The steps are incomplete, the issue is related to a live storage migration command issued at: 2013-08-14 17:01:57,633 INFO [org.ovirt.engine.core.bll.lsm.LiveMigrateVmDisksCommand] (pool-5-thread-43) [6ab44879] Running command: LiveMigrateVmDisksCommand Task handler: LiveSnapshotTaskHandler internal: false. Entities affected : ID: fb5f8061-5b3c-4263-963d-2e5ea8f3ff57 Type: Disk, ID: f29f1f15-944f-4f49-a59d-41e41ff57e8a Type: Storage The "Live merge completed for an unexpected path" error is a text-only issue triggered by the fact that libvirt uses the same event for the disk replica and live merge. (In reply to Federico Simoncelli from comment #1) > (In reply to vvyazmin from comment #0) > > Steps to Reproduce: > > Create VM with one or more disk > > Create a snapshot > > Preview a snapshot > > Commit the snapshot > > Successfully finish task > > The steps are incomplete, the issue is related to a live storage migration > command issued at: > > 2013-08-14 17:01:57,633 INFO > [org.ovirt.engine.core.bll.lsm.LiveMigrateVmDisksCommand] (pool-5-thread-43) > [6ab44879] Running command: LiveMigrateVmDisksCommand Task handler: > LiveSnapshotTaskHandler internal: false. Entities affected : ID: > fb5f8061-5b3c-4263-963d-2e5ea8f3ff57 Type: Disk, ID: > f29f1f15-944f-4f49-a59d-41e41ff57e8a Type: Storage > > The "Live merge completed for an unexpected path" error is a text-only issue > triggered by the fact that libvirt uses the same event for the disk replica > and live merge. So is this a libvirt bug? Is there anything that failed? (In reply to Ayal Baron from comment #2) > (In reply to Federico Simoncelli from comment #1) > > (In reply to vvyazmin from comment #0) > > > Steps to Reproduce: > > > Create VM with one or more disk > > > Create a snapshot > > > Preview a snapshot > > > Commit the snapshot > > > Successfully finish task > > > > The steps are incomplete, the issue is related to a live storage migration > > command issued at: > > > > 2013-08-14 17:01:57,633 INFO > > [org.ovirt.engine.core.bll.lsm.LiveMigrateVmDisksCommand] (pool-5-thread-43) > > [6ab44879] Running command: LiveMigrateVmDisksCommand Task handler: > > LiveSnapshotTaskHandler internal: false. Entities affected : ID: > > fb5f8061-5b3c-4263-963d-2e5ea8f3ff57 Type: Disk, ID: > > f29f1f15-944f-4f49-a59d-41e41ff57e8a Type: Storage > > > > The "Live merge completed for an unexpected path" error is a text-only issue > > triggered by the fact that libvirt uses the same event for the disk replica > > and live merge. > > So is this a libvirt bug? > Is there anything that failed? Nothing failed and what happened is by design as far as I understand: libvirt fires an event at the end of a blockjob. Live storage migration has been implemented on top of blockjob and therefore we now need to add some logic to understand what the event is referring to. Fede, isn't this a dup of bug 878975 ? If so, please close. (In reply to Ayal Baron from comment #4) > Fede, isn't this a dup of bug 878975 ? > If so, please close. Ah yes it is. I had the feeling there was one already but I couldn't find it. *** This bug has been marked as a duplicate of bug 878975 *** |
Created attachment 787848 [details] ## Logs rhevm, vdsm, libvirt, thread dump, superVdsm Description of problem: During commit a snapshot get error - live merge completed for an unexpected path Version-Release number of selected component (if applicable): RHEVM 3.3 - IS10 environment: RHEVM: rhevm-3.3.0-0.15.master.el6ev.noarch PythonSDK: rhevm-sdk-python-3.3.0.10-1.el6ev.noarch VDSM: vdsm-4.12.0-61.git8178ec2.el6ev.x86_64 LIBVIRT: libvirt-0.10.2-18.el6_4.9.x86_64 QEMU & KVM: qemu-kvm-rhev-0.12.1.2-2.355.el6_4.5.x86_64 SANLOCK: sanlock-2.8-1.el6.x86_64 How reproducible: 100% Steps to Reproduce: Create VM with one or more disk Create a snapshot Preview a snapshot Commit the snapshot Successfully finish task Actual results: Get an error: Live merge completed for an unexpected path Expected results: No error should be found Impact on user: none Workaround: not relevant Additional info: /var/log/ovirt-engine/engine.log /var/log/vdsm/vdsm.log libvirtEventLoop::ERROR::2013-08-18 20:05:35,855::vm::3784::vm.Vm::(_onBlockJobEvent) vmId=`3ed567d0-9028-4b14-aec2-0c9d8b52aa7e`::Live merge completed for an unexpected path: / rhev/data-center/1e157529-0537-4696-8a6d-9b4be4680e44/561ce535-9830-49a3-975b-ac5fa2915cce/images/fd32317c-2c3f-4dfe-bf77-23bb2c1b878f/5c1fe0d2-44de-486d-9f40-885ef618f33f