[VDSM] All tests using directio fail on CI

[Barak Korren]

The CI setup did not change recently.

All standard-CI jobs run inside mock (chroot) which is stored on top
of a regular FS, so they should not be affected by the slave OS at all
as far as FS settings go.

But perhaps some slave-OS/mock-OS combination is acting strangely, so
could you be more specific and point to particular job runs that fail?

On 28 September 2016 at 22:00, Nir Soffer <nsoffer at redhat.com> wrote:
> Hi all,
>
> It seems that the CI setup has changed, and /var/tmp is using now tempfs.
>
> This is not compatible with vdsm tests, assuming that /var/tmp is a real file
> system. This is the reason we do not use /tmp.
>
> We have lot of storage tests using directio, and directio cannot work on
> tempfs.
>
> Please check the slaves and make sure /var/tmp is using file system supporting
> directio.
>
> See example failure bellow.
>
> Nir
>
> ----
>
> 12:33:20 ======================================================================
> 12:33:20 ERROR: test_create_fail_creating_lease
> (storage_volume_artifacts_test.BlockVolumeArtifactsTests)
> 12:33:20 ----------------------------------------------------------------------
> 12:33:20 Traceback (most recent call last):
> 12:33:20   File
> "/home/jenkins/workspace/vdsm_master_check-patch-el7-x86_64/vdsm/tests/storage_volume_artifacts_test.py",
> line 485, in test_create_fail_creating_lease
> 12:33:20     *BASE_PARAMS[sc.RAW_FORMAT])
> 12:33:20   File "/usr/lib64/python2.7/unittest/case.py", line 513, in
> assertRaises
> 12:33:20     callableObj(*args, **kwargs)
> 12:33:20   File
> "/home/jenkins/workspace/vdsm_master_check-patch-el7-x86_64/vdsm/vdsm/storage/sdm/volume_artifacts.py",
> line 391, in create
> 12:33:20     desc, parent)
> 12:33:20   File
> "/home/jenkins/workspace/vdsm_master_check-patch-el7-x86_64/vdsm/vdsm/storage/sdm/volume_artifacts.py",
> line 482, in _create_metadata
> 12:33:20     sc.LEGAL_VOL)
> 12:33:20   File
> "/home/jenkins/workspace/vdsm_master_check-patch-el7-x86_64/vdsm/vdsm/storage/volume.py",
> line 427, in newMetadata
> 12:33:20     cls.createMetadata(metaId, meta.legacy_info())
> 12:33:20   File
> "/home/jenkins/workspace/vdsm_master_check-patch-el7-x86_64/vdsm/vdsm/storage/volume.py",
> line 420, in createMetadata
> 12:33:20     cls._putMetadata(metaId, meta)
> 12:33:20   File
> "/home/jenkins/workspace/vdsm_master_check-patch-el7-x86_64/vdsm/vdsm/storage/blockVolume.py",
> line 242, in _putMetadata
> 12:33:20     f.write(data)
> 12:33:20   File
> "/home/jenkins/workspace/vdsm_master_check-patch-el7-x86_64/vdsm/lib/vdsm/storage/directio.py",
> line 161, in write
> 12:33:20     raise OSError(err, msg)
> 12:33:20 OSError: [Errno 22] Invalid argument
> 12:33:20 -------------------- >> begin captured logging << --------------------
> 12:33:20 2016-09-28 05:32:03,254 DEBUG   [storage.PersistentDict]
> (MainThread) Created a persistent dict with VGTagMetadataRW backend
> 12:33:20 2016-09-28 05:32:03,255 DEBUG   [storage.PersistentDict]
> (MainThread) read lines (VGTagMetadataRW)=[]
> 12:33:20 2016-09-28 05:32:03,255 DEBUG   [storage.PersistentDict]
> (MainThread) Empty metadata
> 12:33:20 2016-09-28 05:32:03,255 DEBUG   [storage.PersistentDict]
> (MainThread) Starting transaction
> 12:33:20 2016-09-28 05:32:03,256 DEBUG   [storage.PersistentDict]
> (MainThread) Flushing changes
> 12:33:20 2016-09-28 05:32:03,256 DEBUG   [storage.PersistentDict]
> (MainThread) about to write lines (VGTagMetadataRW)=['CLASS=Data',
> 'POOL_UUID=52fe3782-ed7a-4d84-be3d-236faebdca2d',
> 'SDUUID=c088020e-91b2-45e6-85fd-eea3fce58764', 'VERSION=3',
> '_SHA_CKSUM=3f26f105271d3f7af6ea7458fb179418e7f9c139']
> 12:33:20 2016-09-28 05:32:03,257 DEBUG
> [storage.Metadata.VGTagMetadataRW] (MainThread) Updating metadata
> adding=MDT_POOL_UUID=52fe3782-ed7a-4d84-be3d-236faebdca2d,
> MDT__SHA_CKSUM=3f26f105271d3f7af6ea7458fb179418e7f9c139,
> MDT_SDUUID=c088020e-91b2-45e6-85fd-eea3fce58764, MDT_CLASS=Data,
> MDT_VERSION=3 removing=
> 12:33:20 2016-09-28 05:32:03,257 DEBUG   [storage.PersistentDict]
> (MainThread) Finished transaction
> 12:33:20 2016-09-28 05:32:03,261 INFO
> [storage.BlockVolumeArtifacts] (MainThread) Create placeholder
> /var/tmp/tmp3UKYqC/52fe3782-ed7a-4d84-be3d-236faebdca2d/c088020e-91b2-45e6-85fd-eea3fce58764/images/a1e3aa74-2304-4e0c-b8e8-f5b86f8d3ac7
> for image's volumes
> 12:33:20 2016-09-28 05:32:03,264 WARNING
> [storage.StorageDomainManifest] (MainThread) Could not find mapping
> for lv c088020e-91b2-45e6-85fd-eea3fce58764/3267d54d-c0fa-4fe1-b82b-b88dd5f90de3
> 12:33:20 2016-09-28 05:32:03,264 DEBUG
> [storage.StorageDomainManifest] (MainThread) Found freeSlot 4 in VG
> c088020e-91b2-45e6-85fd-eea3fce58764
> 12:33:20 --------------------- >> end captured logging << ---------------------
> 1
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-- 
Barak Korren
bkorren at redhat.com
RHEV-CI Team