Red Hat Bugzilla – Bug 1009086
[vdsm] small raw volume sizes (<~1M) are rounded to 0m in createVolume (lvcreate error)
Last modified: 2016-02-10 15:55:18 EST
Created attachment 798879 [details] logs Description of problem: vdsm is failing to create a volume from glance. vdsm is trying to perform lvcreate operation with a different lv size than specified in createVolume. Although size=1042453 is passed, the lvcreate command is issued with 0m. Version-Release number of selected component (if applicable): is14 vdsm-4.12.0-105.git0da1561.el6ev.x86_64 rhevm-3.3.0-0.21.master.el6ev.noarch How reproducible: unknown Steps to Reproduce: 1. add glance (with images) as an external provider to RHEV 2. import an image to RHEV Actual results: vdsm is trying to perform lvcreate with a different volume size: createVolume: Thread-3820::INFO::2013-09-17 16:54:59,896::logUtils::44::dispatcher::(wrapper) Run and protect: createVolume(sdUUID='10c139cc-a8c5-49ad-a353-b5c42589c90b', spUUID='5849b030-626e-47cb-ad90-3ce782d831b3', imgUUID='d541e10e-142e-48ab-9e9a-d24c49d9c035', size='1042453', volFormat=5, preallocate=1, diskType=2, volUUID='740fde4b-f8ed-439f-920d-57f942cbffff', desc='', srcImgUUID='00000000-0000-0000-0000-000000000000', srcVolUUID='00000000-0000-0000-0000-000000000000') lvcreate: 8a203438-35b8-4457-9adc-3e9d445758dc::DEBUG::2013-09-17 16:55:00,920::lvm::314::Storage.Misc.excCmd::(cmd) '/usr/bin/sudo -n /sbin/lvm lvcreate --config " devices { preferred_names = [\\"^/dev/mapper/\\"] ignore_suspended_devices=1 write_cache_state=0 disable_after_error_count=3 filter = [ \'a|/dev/mapper/3514f0c54d5c00002|/dev/mapper/3514f0c54d5c00003|/dev/mapper/3514f0c54d5c00004|/dev/mapper/3514f0c54d5c00005|/dev/mapper/3514f0c54d5c00006|/dev/mapper/3514f0c54d5c00007|/dev/mapper/3514f0c54d5c00008|/dev/mapper/3514f0c54d5c00009|/dev/mapper/3514f0c54d5c0000a|/dev/mapper/3514f0c54d5c0000b|/dev/mapper/3514f0c54d5c0000c|/dev/mapper/3514f0c54d5c0000d|/dev/mapper/3514f0c54d5c0000e|/dev/mapper/3514f0c54d5c0000f|/dev/mapper/3514f0c54d5c00597|/dev/mapper/3514f0c54d5c00989|\', \'r|.*|\' ] } global { locking_type=1 prioritise_write_locks=1 wait_for_locks=1 } backup { retain_min = 50 retain_days = 0 } " --autobackup n --contiguous n --size 0m --addtag OVIRT_VOL_INITIALIZING --name 740fde4b-f8ed-439f-920d-57f942cbffff 10c139cc-a8c5-49ad-a353-b5c42589c90b' (cwd None) failure: 8a203438-35b8-4457-9adc-3e9d445758dc::DEBUG::2013-09-17 16:55:01,125::lvm::314::Storage.Misc.excCmd::(cmd) FAILED: <err> = ' Unable to create new logical volume with no extents\n'; <rc> = 5 8a203438-35b8-4457-9adc-3e9d445758dc::ERROR::2013-09-17 16:55:01,131::volume::508::Storage.Volume::(create) Unexpected error Traceback (most recent call last): File "/usr/share/vdsm/storage/volume.py", line 473, in create srcVolUUID, imgPath, volPath) File "/usr/share/vdsm/storage/blockVolume.py", line 178, in _create initialTag=TAG_VOL_UNINIT) File "/usr/share/vdsm/storage/lvm.py", line 1026, in createLV raise se.CannotCreateLogicalVolume(vgName, lvName) CannotCreateLogicalVolume: Cannot create Logical Volume: ('10c139cc-a8c5-49ad-a353-b5c42589c90b', '740fde4b-f8ed-439f-920d-57f942cbffff') Additional info:logs
Attached VDSM logs are not containing the relevant error. This is completely unrelated to glance as it's the regular createVolume flow and in fact you can reproduce it using rest-api just trying to create a disk: # add disk --provisioned_size 1042453 --interface virtio --name DeleteMe1 --format raw --sparse false --storage_domains-storage_domain storage_domain.name=BlockDomain1 id : 2501552a-3185-42f8-8beb-d10289a950cf name : DeleteMe1 actual_size : 0 alias : DeleteMe1 bootable : False creation_status-state : pending format : raw image_id : b32204b7-8d1b-462f-9ff9-3843ae778826 interface : virtio propagate_errors : False provisioned_size : 1042453 quota-id : 00000000-0000-0000-0000-000000000000 shareable : False size : 1042453 sparse : False status-state : locked storage_domains-storage_domain-id: 6cb765e4-d5f1-460b-862b-d955bfda5129 wipe_after_delete : False 16ec03a6-cf4a-48a3-a2a0-a0c33e139da1::DEBUG::2013-09-19 04:28:38,615::lvm::314::Storage.Misc.excCmd::(cmd) '/usr/bin/sudo -n /sbin/lvm lvcreate --config " devices { preferred_names = [\\"^/dev/mapper/\\"] ignore_s uspended_devices=1 write_cache_state=0 disable_after_error_count=3 filter = [ \'a|/dev/mapper/1ATA_QEMU_HARDDISK_QM00007|/dev/mapper/1IET_00010001|/dev/mapper/1IET_00010002|/dev/mapper/1IET_00010003|/dev/mapper/1I ET_00010004|/dev/mapper/1IET_00010005|/dev/mapper/1IET_00010006|/dev/mapper/1IET_00010007|/dev/mapper/1IET_00010008|/dev/mapper/1IET_00020001|/dev/mapper/1IET_00020002|/dev/mapper/1IET_00020003|/dev/mapper/1IET_00 020004|/dev/mapper/1IET_00020005|/dev/mapper/1IET_00020006|/dev/mapper/1IET_00020007|\', \'r|.*|\' ] } global { locking_type=1 prioritise_write_locks=1 wait_for_locks=1 } backup { retain_min = 50 retain_day s = 0 } " --autobackup n --contiguous n --size 0m --addtag OVIRT_VOL_INITIALIZING --name b32204b7-8d1b-462f-9ff9-3843ae778826 6cb765e4-d5f1-460b-862b-d955bfda5129' (cwd None) 16ec03a6-cf4a-48a3-a2a0-a0c33e139da1::DEBUG::2013-09-19 04:28:38,757::lvm::314::Storage.Misc.excCmd::(cmd) FAILED: <err> = ' Unable to create new logical volume with no extents\n'; <rc> = 5 16ec03a6-cf4a-48a3-a2a0-a0c33e139da1::ERROR::2013-09-19 04:28:38,760::task::850::TaskManager.Task::(_setError) Task=`16ec03a6-cf4a-48a3-a2a0-a0c33e139da1`::Unexpected error Traceback (most recent call last): File "/usr/share/vdsm/storage/task.py", line 857, in _run return fn(*args, **kargs) File "/usr/share/vdsm/storage/task.py", line 318, in run return self.cmd(*self.argslist, **self.argsdict) File "/usr/share/vdsm/storage/securable.py", line 68, in wrapper return f(self, *args, **kwargs) File "/usr/share/vdsm/storage/sp.py", line 1994, in createVolume desc=desc, srcImgUUID=srcImgUUID, srcVolUUID=srcVolUUID) File "/usr/share/vdsm/storage/sd.py", line 411, in createVolume preallocate, diskType, volUUID, desc, srcImgUUID, srcVolUUID) File "/usr/share/vdsm/storage/volume.py", line 470, in create raise e CannotCreateLogicalVolume: Cannot create Logical Volume: ('6cb765e4-d5f1-460b-862b-d955bfda5129', 'b32204b7-8d1b-462f-9ff9-3843ae778826') This is not a test blocker, just use images larger than 1Mb.