[Gluster-devel] glusterfs file replication question
devzero at web.de
devzero at web.de
Sun Feb 17 21:23:14 UTC 2008
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 )
> -----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.
> 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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