> Q1: Where's the metadata of an object ? It's stored in extended attributes on the filesystem itself. This is reason XFS (or other filesystem supporting extended attributes) is required.
> Could I find the value? Sure. You just need some way of a) identifying the object on disk and, b) a means of querying the extended metadata (using for example the python xattrs package). > Q2: What if a large object be interrupted during upload , will the manifest > objects be deleted? Large objects (i.e. those > 5Gb) must be split up client-side and the segments uploaded individually. When all the segments are uploaded the manifest must then be created by the client. What I'm trying to get at is that each segment and even the manifest are completely independent objects. A failure during the upload of any one segment has no impact on other segments or the manifest. Adrian On 16 June 2012 09:53, Kuo Hugo <[email protected]> wrote: > Hi folks , > > Q1: > Where's the metadata of an object ? > For example the "X-Object-Manifest". Does it store in inode ? > I did not see the matadata "X-Object=Manifest" in container's DB. > > Could I find the value? > > Q2: > What if a large object be interrupted during upload , will the manifest > objects be deleted? > For example , > OBJ1 :200MB > I execute $>swift upload con1 OBJ1 -S 1024000 > I do a force interrupt while send segment 10. > > I believe that OBJ1 won't live in con1 , what will happen to the rest > manifest objects? > > Those objects seems still live in con1_segments container. Is there any > mechanism to audit OBJ1 and delete those manifest objects ? > > > > -- > +Hugo Kuo+ > [email protected] > +886 935004793 > > > _______________________________________________ > Mailing list: https://launchpad.net/~openstack > Post to : [email protected] > Unsubscribe : https://launchpad.net/~openstack > More help : https://help.launchpad.net/ListHelp > _______________________________________________ Mailing list: https://launchpad.net/~openstack Post to : [email protected] Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp
