8:33 p.m.
On Wed, Apr 20, 2016 at 5:34 PM, Clint Boggio <clint(a)theboggios.com> wrote:
The "vdsm-tool dump-volume-chains" command on the iSCSI
storage domain
shows one disk in "ILLEGAL" state while the gui shows 8 disk images in
the same state.
Interesting - it would be useful to find the missing volume ids in
engine log and
understand wahy they are marked as illegal.
###########################################
# BEGIN COMMAND OUTPUT
###########################################
[root@KVM01 ~]# vdsm-tool dump-volume-chains 045c7fda-ab98-4905-876c-
00b5413a619f
Images volume chains (base volume first)
image: 477e73af-e7db-4914-81ed-89b3fbc876f7
- c8320522-f839-472e-9707-a75f6fbe5cb6
status: OK, voltype: LEAF, format: COW, legality: LEGAL,
type: SPARSE
image: 882c73fc-a833-4e2e-8e6a-f714d80c0f0d
- 689220c0-70f8-475f-98b2-6059e735cd1f
status: OK, voltype: LEAF, format: COW, legality: LEGAL,
type: SPARSE
image: 0ca8c49f-452e-4f61-a3fc-c4bf2711e200
- dac06a5c-c5a8-4f82-aa8d-5c7a382da0b3
status: OK, voltype: LEAF, format: RAW, legality: LEGAL,
type: PREALLOCATED
image: 0ca0b8f8-8802-46ae-a9f8-45d5647feeb7
- 51a6de7b-b505-4c46-ae2a-25fb9faad810
status: OK, voltype: LEAF, format: COW, legality: LEGAL,
type: SPARSE
image: ae6d2c62-cfbb-4765-930f-c0a0e3bc07d0
- b2d39c7d-5b9b-498d-a955-0e99c9bd5f3c
status: OK, voltype: INTERNAL, format: COW, legality:
LEGAL, type: SPARSE
- bf962809-3de7-4264-8c68-6ac12d65c151
status: ILLEGAL, voltype: LEAF, format: COW, legality:
ILLEGAL, type: SPARSE
Lets check vdsm and engine log, and find when and why this disk became
illegal.
If this was a result of a live merge that failed while finalizing the merge
on the engine side, we can safely delete the illegal volume.
If this is the case, we should find a live merge for volume
bf962809-3de7-4264-8c68-6ac12d65c151, and the live merge
should be successful on vdsm side. At this point, vdsm set the old
volume state to illegal. Engine should ask to delete this volume
later in this flow.
Adding Ala and Adam to look at this case.
image: ff8c64c4-d52b-4812-b541-7f291f98d961
- 85f77cd5-2f86-49a9-a411-8539114d3035
status: OK, voltype: LEAF, format: COW, legality: LEGAL,
type: SPARSE
image: 70fc19a2-75da-41bd-a1f6-eb857ed2f18f
- a8f27397-395f-4b62-93c4-52699f59ea4b
status: OK, voltype: LEAF, format: COW, legality: LEGAL,
type: SPARSE
image: 2b315278-65f5-45e8-a51e-02b9bc84dcee
- a6e2150b-57fa-46eb-b205-017fe01b0e4b
status: OK, voltype: INTERNAL, format: COW, legality:
LEGAL, type: SPARSE
- 2d8e5c14-c923-49ac-8660-8e57b801e329
status: OK, voltype: INTERNAL, format: COW, legality:
LEGAL, type: SPARSE
- 43100548-b849-4762-bfc5-18a0f281df2e
status: OK, voltype: LEAF, format: COW, legality: LEGAL,
type: SPARSE
image: bf4594b0-242e-4823-abfd-9398ce5e31b7
- 4608ce2e-f288-40da-b4e5-2a5e7f3bf837
status: OK, voltype: LEAF, format: COW, legality: LEGAL,
type: SPARSE
image: 00efca9d-932a-45b3-92c3-80065c1a40ce
- a0bb00bc-cefa-4031-9b59-3cddc3a53a0a
status: OK, voltype: LEAF, format: COW, legality: LEGAL,
type: SPARSE
image: 5ce704eb-3508-4c36-b0ce-444ebdd27e66
- e41f2c2d-0a79-49f1-8911-1535a82bd735
status: OK, voltype: LEAF, format: RAW, legality: LEGAL,
type: PREALLOCATED
image: 11288fa5-0019-4ac0-8a7d-1d455e5e1549
- 5df31efc-14dd-427c-b575-c0d81f47c6d8
status: OK, voltype: LEAF, format: COW, legality: LEGAL,
type: SPARSE
image: a091f7df-5c64-4b6b-a806-f4bf3aad53bc
- 38138111-2724-44a4-bde1-1fd9d60a1f63
status: OK, voltype: LEAF, format: COW, legality: LEGAL,
type: SPARSE
image: c0b302c4-4b9d-4759-bb80-de1e865ecd58
- d4db9ba7-1b39-4b48-b319-013ebc1d71ce
status: OK, voltype: LEAF, format: RAW, legality: LEGAL,
type: PREALLOCATED
image: 21123edb-f74f-440b-9c42-4c16ba06a2b7
- f3cc17aa-4336-4542-9ab0-9df27032be0b
status: OK, voltype: LEAF, format: COW, legality: LEGAL,
type: SPARSE
image: ad486d26-4594-4d16-a402-68b45d82078a
- e87e0c7c-4f6f-45e9-90ca-cf34617da3f6
status: OK, voltype: LEAF, format: COW, legality: LEGAL,
type: SPARSE
image: c30c7f11-7818-4592-97ca-9d5be46e2d8e
- cb53ad06-65e8-474d-94c3-9acf044d5a09
status: OK, voltype: LEAF, format: COW, legality: LEGAL,
type: SPARSE
image: 998ac54a-0d91-431f-8929-fe62f5d7290a
- d11aa0ee-d793-4830-9120-3b118ca44b6c
status: OK, voltype: LEAF, format: COW, legality: LEGAL,
type: SPARSE
image: a1e69838-0bdf-42f3-95a4-56e4084510a9
- f687c727-ec06-49f1-9762-b0195e0b549a
status: OK, voltype: LEAF, format: COW, legality: LEGAL,
type: SPARSE
image: a29598fe-f94e-4215-8508-19ac24b082c8
- 29b9ff26-2386-4fb5-832e-b7129307ceb4
status: OK, voltype: LEAF, format: RAW, legality: LEGAL,
type: PREALLOCATED
image: b151d4d7-d7fc-43ff-8bb2-75cf947ed626
- 34676d55-695a-4d2a-a7fa-546971067829
status: OK, voltype: LEAF, format: COW, legality: LEGAL,
type: SPARSE
image: 352a3a9a-4e1a-41bf-af86-717e374a7562
- adcc7655-9586-48c1-90d2-1dc9a851bbe1
status: OK, voltype: LEAF, format: RAW, legality: LEGAL,
type: PREALLOCATED
###########################################
# END COMMAND OUTPUT
########
###################################
###########################################
# BEGIN LOG OUTPUT FROM ENGINE
###########################################
The below output is an excerpt from the engine.log while attemtping to start one of the
afflicted VM's. Following the storage chain out i have discovered that
"919d6991-43e4-4f26-868e-031a01011191" does not exist. This is likely due to a
failure of the backup python script that the client is using. I can provide that script if
you all would like.
How is this related to backup? did you restore the files using your
backup script? or maybe
the backup script deleted files by mistake?
2016-04-20 08:56:58,285 INFO
[org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector]
(org.ovirt.thread.pool-8-thread-8) [] Correlation ID: abd1342, Job ID:
1ad2ee48-2c2c-437e-997b-469e09498e41, Call Stack: null, Custom Event ID: -1, Message: VM
Bill-V was started by admin@internal (Host: KVM03).
2016-04-20 08:57:00,392 ERROR
[org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector]
(ForkJoinPool-1-worker-1) [] Correlation ID: null, Call Stack: null, Custom Event ID: -1,
Message: VM Bill-V is down with error. Exit message: Unable to get volume size for domain
045c7fda-ab98-4905-876c- 00b5413a619f volume 919d6991-43e4-4f26-868e-031a01011191.
2016-04-20 08:57:00,393 INFO [org.ovirt.engine.core.vdsbroker.VmAnalyzer]
(ForkJoinPool-1-worker-1) [] VM '6ef30172-b010-46fa-9482-accd30682232(Bill-V) is
running in db and not running in VDS 'KVM03'
2016-04-20 08:57:00,498 WARN
[org.ovirt.engine.core.dal.dbbroker.auditloghandling.AuditLogDirector]
(org.ovirt.thread.pool-8-thread-5) [] Correlation ID: abd1342, Job ID:
1ad2ee48-2c2c-437e-997b-469e09498e41, Call Stack: null, Custom Event ID: -1, Message:
Failed to run VM Bill-V on Host KVM03.
We need the entire engine to investigate.
###########################################
# END LOG OUTPUT FROM ENGINE
###########################################
I have followed the storage chain out to where the UUID'ed snapshots live, and
discovered that all of the "ILLEGAL" snapshots show to be broken symbolic
links.
Attached is a screenshot of the snapshots as they appear in the GUI. ALL of the
UUID's illustrated show as broken symbolic links in the storage domains.
Unless you think that the issue is your backup script deleting files,
I think the best way to proceeed would be to file a bug:
https://bugzilla.redhat.com/enter_bug.cgi?product=ovirt-engine
Use:
oVirt Team: storage
Severity: high
Please include the information in this mail, and complete vdsm
and engine logs.
Nir
On Tue, 2016-04-19 at 21:28 +0300, Nir Soffer wrote:
> On Mon, Apr 18, 2016 at 3:16 PM, Clint Boggio <clint(a)theboggios.com>
> wrote:
> >
> > OVirt 3.6, 4 node cluster with dedicated engine. Main storage
> > domain is iscsi, ISO and Export domains are NFS.
> >
> > Several of my VM snapshot disks show to be in an "illegal state".
> > The system will not allow me to manipulate the snapshots in any
> > way, nor clone the active system, or create a new snapshot.
> >
> > In the logs I see that the system complains about not being able to
> > "get volume size for xxx", and also that the system appears to
> > believe that the image is "locked" and is currently in the snapshot
> > process.
> >
> > Of the VM's with this status, one rebooted and was lost due to
> > "cannot get volume size for domain xxx".
> >
> Can you share the vdsm log showing these errors?
>
> Also it may helpful to get the output of this command:
>
> vdsm-tool dump-volume-chains SDUUID
>
> Nir
>
> >
> > I fear that in this current condition, should any of the other
> > machine reboot, they too will be lost.
> >
> > How can I troubleshoot this problem further, and hopefully
> > alleviate the condition ?
> >
> > Thank you for your help.
> >
> > Clint
> > _______________________________________________
> > Users mailing list
> > Users(a)ovirt.org
> > http://lists.ovirt.org/mailman/listinfo/users