On 1 February 2017 at 19:30, Jesper Led Lauridsen TS Infra server <JLY@xxxxx> wrote:
Arbiter, isn't that only used where you want replica, but same storage space.
I would like a distributed volume where I can write, even if one of the bricks fail. No replication.
DHT does not currently allow that as that could lead to differnt files with duplicate names on different bricks.
Regards,
Nithya
Thanks
Jesper
> -----Oprindelig meddelelse-----
> Fra: Cedric Lemarchand [mailto:yipikai7@xxxxxxxxx]
> Sendt: 1. februar 2017 13:41
> Til: Jesper Led Lauridsen TS Infra server <JLY@xxxxx>
> Cc: gluster-users@xxxxxxxxxxx
> Emne: Re: Always writeable distributed volume
>
> Short answer : I think you need to add an arbiter node, this way the cluster
> keeps being writable when there is at least 2 nodes presents (eg 1 data node
> is down). This solve the split brain case where only 2 nodes are involved in
> the setup.
>
> Cheers
>
> --
> Cédric Lemarchand
>
> > Le 1 févr. 2017 à 13:18, Jesper Led Lauridsen TS Infra server <JLY@xxxxx> a
> écrit :
> >
> > Hi,
> >
> > I am wondering if it is possible to create an always writeable distributed
> volume.
> >
> > Reading the documentation I can figure out how. So is it possible?
> > If I understand the docs correctly. The DHT determines based on a hash of
> the filename, which brick to place the file. And if you have two bricks and
> loose one brick I can't create files DHT determines should be places on the
> failed brick.
> >
> > I have tried creating a distributed volume on two bricks/nodes. And as the
> feared I can't write files DHT determines should be placed on a failed node. I
> am well aware and can accept that I can't access or re-create files already
> created on the failed node. But I would like to write new files.
> >
> > Is there a setting/feature I can enable that allows me to create file on the
> available/online bricks even if DHT determines that the file should be placed
> on the unavailable/failed?
> >
> > My use case is: I want to use a Gluster volume for temporary storage that is
> always available, as in I can always mount and write to it . We have a lot of
> media file that is transcoded on user request and there need at temporary
> storage for this operation. All I need is a temporary, fast and always
> accessible storage with no data security/replica.
> >
> > Regards
> > Jesper
> >
> > _______________________________________________
> > Gluster-users mailing list
> > Gluster-users@xxxxxxxxxxx
> > http://lists.gluster.org/mailman/listinfo/gluster-users
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