My understanding, from dealing with replication, is RadosGW is copy-on-write. Overwriting an object is a delete and create, and the old data gets garbage collected later.
I'm guessing a bit, but that's what I believe from Greg's comment about RGW replication: http://permalink.gmane.org/gmane.comp.file-systems.ceph.user/7434 *Craig Lewis* Senior Systems Engineer Office +1.714.602.1309 Email cle...@centraldesktop.com <mailto:cle...@centraldesktop.com> *Central Desktop. Work together in ways you never thought possible.* Connect with us Website <http://www.centraldesktop.com/> | Twitter <http://www.twitter.com/centraldesktop> | Facebook <http://www.facebook.com/CentralDesktop> | LinkedIn <http://www.linkedin.com/groups?gid=147417> | Blog <http://cdblog.centraldesktop.com/> On 3/19/14 03:58 , ljm李嘉敏 wrote: > > You are right, but I still don’t know why the objects in .rgw.buckets > are not overrided. > > If the object name is produced through ino and ono, why the same > file(bigger than 4M) have different result? > > Thanks & Regards > > Li JiaMin > > *发件人:*ceph-users-boun...@lists.ceph.com > [mailto:ceph-users-boun...@lists.ceph.com] *代表 *Craig Lewis > *发 送时间:*2014年3月19日9:00 > *收件人:*ceph-users@lists.ceph.com > *主题:*Re: [ceph-users] why objects are still in .rgw.buckets after > deleted > > I recall hearing that RGW GC waits 2 hours before garbage collecting > deleted chunks. > > Take a look at https://ceph.com/docs/master/radosgw/config-ref/, the > rgw gc * settings. rgw gc obj min wait is 2 hours. > > > > > *Craig Lewis* > Senior Systems Engineer > Office +1.714.602.1309 > Email cle...@centraldesktop.com <mailto:cle...@centraldesktop.com> > > *Central Desktop. Work together in ways you never thought possible.* > Connect with us Website <http://www.centraldesktop.com/> | Twitter > <http://www.twitter.com/centraldesktop> | Facebook > <http://www.facebook.com/CentralDesktop> | LinkedIn > <http://www.linkedin.com/groups?gid=147417> | Blog > <http://cdblog.centraldesktop.com/> > > On 3/16/14 23:20 , ljm李嘉敏wrote: > > Hi all, > > I have a question about the pool .rgw.buckets, when I upload a > file(has been stripped because it is bigger than 4M) through swift > API, it is stored in .rgw.buckets, > > if I upload it again, why the objects in .rgw.buckets are not > override? It is stored again and have different name. and when I > delete the file, all of the objects in .rgw.buckets > > aren’t delete even though I execute radosgw-admin gc process. > > I also want to know something about the pool created for object > gateway, why are they created and which role they will play? If > anyone know about these, > > please give me a guide, thanks. > > Thanks & Regards > > Li JiaMin > > System Cloud Platform > > 3#4F108 > > > > > _______________________________________________ > > ceph-users mailing list > > ceph-users@lists.ceph.com <mailto:ceph-users@lists.ceph.com> > > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >
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