Block-based storage domain tasks can fail on an SPM host that has vdsm-4.17.23-0.el7
Issue
-
There are problems with tasks handled on the SPM host with
vdsm-4.17.23-0.el7. -
vdsm-4.17.23-0.el7was included in RHEV-H (20160302.1.el7ev). It is also the version released with RHEV 3.6. -
Customers have reported problems with:
- virtual machines that belong to VM Pool cannot be started
- cannot increase the virtual disk size for a virtual machine
- snapshot deletion failures
- removing a disk fails
-
This only occurs on block-based storage domains.
-
Sample error message sequence reported in he vdsm logs on the SPM host;
5d2f8189-7cf2-4613-8a46-320363dc935f::ERROR::2016-03-14 19:29:07,439::blockVolume::459::Storage.Volume::(validateImagePath) Unexpected error
Traceback (most recent call last):
File "/usr/share/vdsm/storage/blockVolume.py", line 457, in validateImagePath
os.mkdir(imageDir, 0o755)
OSError: [Errno 17] File exists: '/rhev/data-center/598dd170-6339-45ff-82d0-c5e73e1feab5/42f91b62-71fc-4c97-8b0f-9929ce4b88c3/images/e4d3f7f0-8fa7-483a-93cc-07c774c28704'
5d2f8189-7cf2-4613-8a46-320363dc935f::WARNING::2016-03-14 19:29:07,439::resourceManager::594::Storage.ResourceManager::(registerResource) Resource factory failed to create resource '42f91b62-71fc-4c97-8b0f-9929ce4b88c3_imageNS.e4d3f7f0-8fa7-483a-93cc-07c774c28704'. Canceling request.
Traceback (most recent call last):
File "/usr/share/vdsm/storage/resourceManager.py", line 590, in registerResource
obj = namespaceObj.factory.createResource(name, lockType)
File "/usr/share/vdsm/storage/resourceFactories.py", line 193, in createResource
lockType)
File "/usr/share/vdsm/storage/resourceFactories.py", line 122, in __getResourceCandidatesList
imgUUID=resourceName)
File "/usr/share/vdsm/storage/image.py", line 189, in getChain
srcVol = volclass(self.repoPath, sdUUID, imgUUID, uuidlist[0])
File "/usr/share/vdsm/storage/blockVolume.py", line 80, in __init__
volume.Volume.__init__(self, repoPath, sdUUID, imgUUID, volUUID)
File "/usr/share/vdsm/storage/volume.py", line 181, in __init__
self.validate()
File "/usr/share/vdsm/storage/blockVolume.py", line 89, in validate
volume.Volume.validate(self)
File "/usr/share/vdsm/storage/volume.py", line 193, in validate
self.validateImagePath()
File "/usr/share/vdsm/storage/blockVolume.py", line 460, in validateImagePath
raise se.ImagePathError(imageDir)
ImagePathError: Image path does not exist or cannot be accessed/created: (u'/rhev/data-center/598dd170-6339-45ff-82d0-c5e73e1feab5/42f91b62-71fc-4c97-8b0f-9929ce4b88c3/images/e4d3f7f0-8fa7-483a-93cc-07c774c28704',)
- An
Image is not a legal chainerror may also be a symptom, e.g.
jsonrpc.Executor/1::ERROR::2016-03-22 00:41:22,099::blockVolume::459::Storage.Volume::(validateImagePath) Unexpected error
Traceback (most recent call last):
File "/usr/share/vdsm/storage/blockVolume.py", line 457, in validateImagePath
os.mkdir(imageDir, 0o755)
OSError: [Errno 17] File exists: '/rhev/data-center/00000001-0001-0001-0001-0000000003bd/d9b512c6-fe14-4b69-9757-ec707fdd1231/images/6a5efd25-ebb6-404d-bfc3-c02f1383ff4a'
jsonrpc.Executor/1::ERROR::2016-03-22 00:41:22,100::task::866::Storage.TaskManager.Task::(_setError) Task=`93d1adac-2970-4d50-9b1e-d4481cab9ae6`::Unexpected error
Traceback (most recent call last):
File "/usr/share/vdsm/storage/task.py", line 873, in _run
return fn(*args, **kargs)
File "/usr/share/vdsm/logUtils.py", line 49, in wrapper
res = f(*args, **kwargs)
File "/usr/share/vdsm/storage/hsm.py", line 1815, in copyImage
pool.validateVolumeChain(sdUUID, srcImgUUID)
File "/usr/share/vdsm/storage/securable.py", line 77, in wrapper
return method(self, *args, **kwargs)
File "/usr/share/vdsm/storage/sp.py", line 2016, in validateVolumeChain
image.Image(self.poolPath).validateVolumeChain(sdUUID, imgUUID)
File "/usr/share/vdsm/storage/image.py", line 734, in validateVolumeChain
raise se.ImageIsNotLegalChain(imgUUID)
ImageIsNotLegalChain: Image is not a legal chain: (u'6a5efd25-ebb6-404d-bfc3-c02f1383ff4a',)
Environment
- Red Hat Enterprise Virtualization (RHEV) 3.5 and 3.6
- with Storage Pool Manager (SPM) host;
- Red Hat Enterprise Linux (RHEL) 7.2 host containing
vdsm-4.17.23-0.el7 - RHEV-H 7.2 (20160302.1.el7ev)
- Red Hat Enterprise Linux (RHEL) 7.2 host containing
- with Storage Pool Manager (SPM) host;
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