Forgive me if I am wrong, but AFAIK, arbiter is for a two-node configuration, isn't it? --- Gilberto Nunes Ferreira (47) 99676-7530 - Whatsapp / Telegram Em ter., 8 de fev. de 2022 ?s 07:17, Karthik Subrahmanya < ksubrahm at redhat.com> escreveu:> Hi Andre, > > Striped volumes are deprecated long back, see [1] & [2]. Seems like you > are using a very old version. May I know which version of gluster you are > running and the gluster volume info please? > Release schedule and the maintained branches can be found at [3]. > > > [1] https://docs.gluster.org/en/latest/release-notes/6.0/ > [2] > https://lists.gluster.org/pipermail/gluster-users/2018-July/034400.html > [3] https://www.gluster.org/release-schedule/ > > Regards, > Karthik > > On Mon, Feb 7, 2022 at 9:43 PM Andre Probst <andrefprobst at gmail.com> > wrote: > >> I have a striped and replicated volume with 4 nodes. How do I add an >> arbiter to this volume? >> >> >> -- >> Andr? Probst >> Consultor de Tecnologia >> 43 99617 8765 >> ________ >> >> >> >> Community Meeting Calendar: >> >> Schedule - >> Every 2nd and 4th Tuesday at 14:30 IST / 09:00 UTC >> Bridge: https://meet.google.com/cpu-eiue-hvk >> Gluster-users mailing list >> Gluster-users at gluster.org >> https://lists.gluster.org/mailman/listinfo/gluster-users >> > ________ > > > > Community Meeting Calendar: > > Schedule - > Every 2nd and 4th Tuesday at 14:30 IST / 09:00 UTC > Bridge: https://meet.google.com/cpu-eiue-hvk > Gluster-users mailing list > Gluster-users at gluster.org > https://lists.gluster.org/mailman/listinfo/gluster-users >-------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.gluster.org/pipermail/gluster-users/attachments/20220208/559f3378/attachment.html>
IIUC it always requires 3 servers. Lightweight arbiter is just to avoid split brain (a client needs to reach two servers out of three to be able to write data). "Full" arbiter is a third replica of metadata while there are only two copies of the data. Il 08/02/2022 11:58, Gilberto Ferreira ha scritto:> Forgive me if I am wrong, but AFAIK, arbiter is for a two-node > configuration, isn't it? > --- > Gilberto Nunes Ferreira > (47) 99676-7530 - Whatsapp / Telegram > > > > > > > Em ter., 8 de fev. de 2022 ?s 07:17, Karthik Subrahmanya > <ksubrahm at redhat.com <mailto:ksubrahm at redhat.com>> escreveu: > > Hi Andre, > > Striped volumes are deprecated long back, see [1] & [2]. Seems like > you are using a very old version. May I know which version of > gluster you are running and the gluster volume info please? > Release schedule and the maintained branches can be found at [3]. > > > [1] https://docs.gluster.org/en/latest/release-notes/6.0/ > <https://docs.gluster.org/en/latest/release-notes/6.0/> > [2] > https://lists.gluster.org/pipermail/gluster-users/2018-July/034400.html > <https://lists.gluster.org/pipermail/gluster-users/2018-July/034400.html> > [3] https://www.gluster.org/release-schedule/ > <https://www.gluster.org/release-schedule/> > > Regards, > Karthik > > On Mon, Feb 7, 2022 at 9:43 PM Andre Probst <andrefprobst at gmail.com > <mailto:andrefprobst at gmail.com>> wrote: > > I have a striped and replicated volume with 4 nodes. How do I > add an arbiter to this volume? > > > -- > Andr? Probst > Consultor de Tecnologia > 43 99617 8765 > ________ > > > > Community Meeting Calendar: > > Schedule - > Every 2nd and 4th Tuesday at 14:30 IST / 09:00 UTC > Bridge: https://meet.google.com/cpu-eiue-hvk > <https://meet.google.com/cpu-eiue-hvk> > Gluster-users mailing list > Gluster-users at gluster.org <mailto:Gluster-users at gluster.org> > https://lists.gluster.org/mailman/listinfo/gluster-users > <https://lists.gluster.org/mailman/listinfo/gluster-users> > > ________ > > > > Community Meeting Calendar: > > Schedule - > Every 2nd and 4th Tuesday at 14:30 IST / 09:00 UTC > Bridge: https://meet.google.com/cpu-eiue-hvk > <https://meet.google.com/cpu-eiue-hvk> > Gluster-users mailing list > Gluster-users at gluster.org <mailto:Gluster-users at gluster.org> > https://lists.gluster.org/mailman/listinfo/gluster-users > <https://lists.gluster.org/mailman/listinfo/gluster-users> > > > ________ > > > > Community Meeting Calendar: > > Schedule - > Every 2nd and 4th Tuesday at 14:30 IST / 09:00 UTC > Bridge: https://meet.google.com/cpu-eiue-hvk > Gluster-users mailing list > Gluster-users at gluster.org > https://lists.gluster.org/mailman/listinfo/gluster-users-- Diego Zuccato DIFA - Dip. di Fisica e Astronomia Servizi Informatici Alma Mater Studiorum - Universit? di Bologna V.le Berti-Pichat 6/2 - 40127 Bologna - Italy tel.: +39 051 20 95786
On Tue, Feb 8, 2022 at 4:28 PM Gilberto Ferreira <gilberto.nunes32 at gmail.com> wrote:> Forgive me if I am wrong, but AFAIK, arbiter is for a two-node > configuration, isn't it? >Arbiter is to give the same consistency as replica-3 with 3 nodes, without the need to have a full sized 3rd brick [1]. It will store the files and their metadata but no data. This acts as a quorum brick to avoid split-brains. Since there are 4 nodes available here, and based on the configuration of the available volumes (requested volume info for the same) I was thinking whether the arbiter brick can be hosted on one of those nodes itself, or a new node is required. [1] https://docs.gluster.org/en/latest/Administrator-Guide/arbiter-volumes-and-quorum/ Regards, Karthik> --- > Gilberto Nunes Ferreira > (47) 99676-7530 - Whatsapp / Telegram > > > > > > > Em ter., 8 de fev. de 2022 ?s 07:17, Karthik Subrahmanya < > ksubrahm at redhat.com> escreveu: > >> Hi Andre, >> >> Striped volumes are deprecated long back, see [1] & [2]. Seems like you >> are using a very old version. May I know which version of gluster you are >> running and the gluster volume info please? >> Release schedule and the maintained branches can be found at [3]. >> >> >> [1] https://docs.gluster.org/en/latest/release-notes/6.0/ >> [2] >> https://lists.gluster.org/pipermail/gluster-users/2018-July/034400.html >> [3] https://www.gluster.org/release-schedule/ >> >> Regards, >> Karthik >> >> On Mon, Feb 7, 2022 at 9:43 PM Andre Probst <andrefprobst at gmail.com> >> wrote: >> >>> I have a striped and replicated volume with 4 nodes. How do I add an >>> arbiter to this volume? >>> >>> >>> -- >>> Andr? Probst >>> Consultor de Tecnologia >>> 43 99617 8765 >>> ________ >>> >>> >>> >>> Community Meeting Calendar: >>> >>> Schedule - >>> Every 2nd and 4th Tuesday at 14:30 IST / 09:00 UTC >>> Bridge: https://meet.google.com/cpu-eiue-hvk >>> Gluster-users mailing list >>> Gluster-users at gluster.org >>> https://lists.gluster.org/mailman/listinfo/gluster-users >>> >> ________ >> >> >> >> Community Meeting Calendar: >> >> Schedule - >> Every 2nd and 4th Tuesday at 14:30 IST / 09:00 UTC >> Bridge: https://meet.google.com/cpu-eiue-hvk >> Gluster-users mailing list >> Gluster-users at gluster.org >> https://lists.gluster.org/mailman/listinfo/gluster-users >> >-------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.gluster.org/pipermail/gluster-users/attachments/20220208/5a93cfb3/attachment.html>