Maor Lipchuk has posted comments on this change.

Change subject: upgrade: Support upgrade to v4 from v3
......................................................................


Patch Set 1:

(4 comments)

https://gerrit.ovirt.org/#/c/63547/1/vdsm/storage/imageRepository/formatConverter.py
File vdsm/storage/imageRepository/formatConverter.py:

Line 343:     log.debug("Switching the cluster lock for domain %s", 
domain.sdUUID)
Line 344:     domain._clusterLock = newClusterLock
Line 345: 
Line 346: def v4DomainConverter(repoPath, hostId, domain, isMsd):
Line 347:     log = logging.getLogger('Storage.v4DomainConverter')
> +1
Fixed
Line 348:     targetVersion = 4
Line 349: 
Line 350:     if domain.getStorageType() in sd.BLOCK_DOMAIN_TYPES:
Line 351:         log.debug("Trying to upgrade domain %s to tag based metadata "


PS1, Line 348: targetVersion = 4
> Umm, you don't seem to actually do anything with it. I assume you're missin
I was thinking to reuse __convertDomainMetadataToTags instead, though I will 
try the cleaner way as suggested


PS1, Line 350:     if domain.getStorageType() in sd.BLOCK_DOMAIN_TYPES:
             :         log.debug("Trying to upgrade domain %s to tag based 
metadata "
             :                   "version %s", domain.sdUUID, targetVersion)
             : 
             :         __convertDomainMetadataToTags(domain, targetVersion)
> V3 is already based on tags, and we don't support direct upgrade from [0, 2
see my comment above


Line 354:         __convertDomainMetadataToTags(domain, targetVersion)
Line 355: 
Line 356:     else:
Line 357:         log.debug("Skipping the upgrade to tag based metadata version 
%s "
Line 358:                   "for the domain %s", targetVersion, domain.sdUUID)
> Please use the happy path idiom:
Thinking about this again, Is there any reason to filter block and file SDs 
regarding upgrade to V4.
I will remove it for now, please let me know if there was something I've been 
missing.
Line 359: 
Line 360: 
Line 361: _IMAGE_REPOSITORY_CONVERSION_TABLE = {
Line 362:     ('0', '2'): v2DomainConverter,


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Gerrit-MessageType: comment
Gerrit-Change-Id: I8a66346b91e49480d391116ba8ee8b8294f53ec4
Gerrit-PatchSet: 1
Gerrit-Project: vdsm
Gerrit-Branch: master
Gerrit-Owner: Maor Lipchuk <mlipc...@redhat.com>
Gerrit-Reviewer: Adam Litke <ali...@redhat.com>
Gerrit-Reviewer: Allon Mureinik <amure...@redhat.com>
Gerrit-Reviewer: Jenkins CI
Gerrit-Reviewer: Maor Lipchuk <mlipc...@redhat.com>
Gerrit-Reviewer: Nir Soffer <nsof...@redhat.com>
Gerrit-Reviewer: gerrit-hooks <automat...@ovirt.org>
Gerrit-HasComments: Yes
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