[Gluster-devel] glusterfs file replication question

[Krishna Srinivas]

Hi Roland,
The idea you want to use is correct, however afr does not handle
healing of holes
properly, we are working on it.
Regards
Krishna

On Feb 19, 2008 1:54 AM,  <devzero at web.de> wrote:
> what if i combine AFR with Stripe Translator ?
>
> can this eventually help here?
>
> if i stripe a large file into several smaller parts and then open/write to that large file - can i combine this with AFR and will all the parts of that file be re-transmitted ?
>
> regards
> roland
>
>
> > -----Ursprüngliche Nachricht-----
> > Von: <devzero at web.de>
> > Gesendet: 17.02.08 22:23:14
> > An: "Krishna Srinivas" <krishna at zresearch.com>
>
> > CC: gluster-devel at nongnu.org
> > Betreff: Re: [Gluster-devel] glusterfs file replication question
>
>
> >
> > oh, that`s a real bandwidth killer / i/o hog then :)
> > think of 500gig disk with lot`s of large files , connected with 100mbit network.
> > if many of the files are open at the time of a node going down, that will take hours then for resync.
> >
> > is it planned to adress this to be handled more fficiently? for example just like fr1 from enbd ? (http://www.it.uc3m.es/ptb/nbd/#Intelligent_mirroring )
> >
> > regards
> > roland
> >
> > > -----Ursprüngliche Nachricht-----
> > > Von: "Krishna Srinivas" <krishna at zresearch.com>
> > > Gesendet: 17.02.08 18:14:21
> > > An: devzero at web.de
> > > CC: gluster-devel at nongnu.org
> > > Betreff: Re: [Gluster-devel] glusterfs file replication question
> >
> >
> > >
> > > Hi Roland,
> > > You are right. The entire file is copied.
> > > Krishna
> > >
> > > On Feb 17, 2008 5:12 PM,  <devzero at web.de> wrote:
> > > > hello !
> > > >
> > > > first off, i think glusterfs is great. i have waited/searched very long for something like this!
> > > > thanks for making it !
> > > >
> > > > i`m new to glusterfs and have a question:
> > > >
> > > > if i use afr to have redundant copies of files to be stored on 2 or more nodes - when one node goes down and comes back online - what does  this mean regarding transferred amount of data for "resync" ?
> > > >
> > > > say i had 10 files open at the time of the crash of a node, and each of those files is sized 1gb - will the "resync" then transfer 10gb of data over the network, i.e. doing a complete copy from the working node to the previously failed one ?
> > > >
> > > > regards
> > > > roland
> > > > sysadmin
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> > > >
> > > >
> > > >
> > > > _______________________________________________
> > > > Gluster-devel mailing list
> > > > Gluster-devel at nongnu.org
> > > > http://lists.nongnu.org/mailman/listinfo/gluster-devel
> > > >
> > >
> >
> >
>
>
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