The third brick should be the arbiter. Not sure if it should be marked as arbiter in volume info. Try to put data on it. Brick 3 should be empty and get only metadata. Regards André Am 23.03.2016 um 14:33 schrieb Ralf Simon: > Hello, > > I've installed .... > > # yum info glusterfs-server > Loaded plugins: fastestmirror > Loading mirror speeds from cached hostfile > Installed Packages > Name : glusterfs-server > Arch : x86_64 > Version : 3.7.6 > Release : 1.el7 > Size : 4.3 M > Repo : installed > From repo : latest > Summary : Clustered file-system server > URL : http://www.gluster.org/docs/index.php/GlusterFS > License : GPLv2 or LGPLv3+ > Description : GlusterFS is a distributed file-system capable of scaling > to several > : petabytes. It aggregates various storage bricks over > Infiniband RDMA > : or TCP/IP interconnect into one large parallel network file > : system. GlusterFS is one of the most sophisticated file > systems in > : terms of features and extensibility. It borrows a > powerful concept > : called Translators from GNU Hurd kernel. Much of the code > in GlusterFS > : is in user space and easily manageable. > : > : This package provides the glusterfs server daemon. > > I wanted to build a ... > > # gluster volume create gv0 replica 3 arbiter 1 d90029:/data/brick0 > d90031:/data/brick0 d90034:/data/brick0 > volume create: gv0: success: please start the volume to access data > > ... but I got a ... > > # gluster volume info > > Volume Name: gv0 > Type: Replicate > Volume ID: 329325fc-ceed-4dee-926f-038f44281678 > Status: Created > Number of Bricks: *1 x 3 = 3* > Transport-type: tcp > Bricks: > Brick1: d90029:/data/brick0 > Brick2: d90031:/data/brick0 > Brick3: d90034:/data/brick0 > Options Reconfigured: > performance.readdir-ahead: on > > ... without the requested arbiter ! > > The same situation with 6 bricks ... > > # gluster volume create gv0 replica 3 arbiter 1 d90029:/data/brick0 > d90031:/data/brick0 d90034:/data/brick0 d90029:/data/brick1 > d90031:/data/brick1 d90034:/data/brick1 > volume create: gv0: success: please start the volume to access data > [root@d90029 ~]# gluster vol info > > Volume Name: gv0 > Type: Distributed-Replicate > Volume ID: 2b8dbcc0-c4bb-41e3-a870-e164d8d10c49 > Status: Created > Number of Bricks: *2 x 3 = 6* > Transport-type: tcp > Bricks: > Brick1: d90029:/data/brick0 > Brick2: d90031:/data/brick0 > Brick3: d90034:/data/brick0 > Brick4: d90029:/data/brick1 > Brick5: d90031:/data/brick1 > Brick6: d90034:/data/brick1 > Options Reconfigured: > performance.readdir-ahead: on > > > In contrast the documentation tells .... > > > *Arbiter configuration* > > The arbiter configuration a.k.a. the arbiter volume is the perfect sweet > spot between a 2-way replica and 3-way replica to avoid files getting > into split-brain, */without the 3x storage space/* as mentioned earlier. > The syntax for creating the volume is: > > *gluster volume create replica 3 arbiter 1 host1:brick1 host2:brick2 > host3:brick3* > > For example: > > *gluster volume create testvol replica 3 arbiter 1 > 127.0.0.2:/bricks/brick{1..6} force* > > volume create: testvol: success: please start the volume to access data > > *gluster volume info* > > Volume Name: testvol > Type: Distributed-Replicate > Volume ID: ae6c4162-38c2-4368-ae5d-6bad141a4119 > Status: Created > Number of Bricks: *2 x (2 + 1) = 6* > Transport-type: tcp > Bricks: > Brick1: 127.0.0.2:/bricks/brick1 > Brick2: 127.0.0.2:/bricks/brick2 > Brick3: 127.0.0.2:/bricks/brick3 *(arbiter)* > Brick4: 127.0.0.2:/bricks/brick4 > Brick5: 127.0.0.2:/bricks/brick5 > Brick6: 127.0.0.2:/bricks/brick6 *(arbiter)* > Options Reconfigured : transport.address-family: inet > performance.readdir-ahead: on ` > > > > What's going wrong ? Can anybody help ? > > Kind Regards > Ralf Simon > > > > > > _______________________________________________ > Gluster-users mailing list > Gluster-users@xxxxxxxxxxx > http://www.gluster.org/mailman/listinfo/gluster-users > -- Mit freundlichen Grüßen André Bauer MAGIX Software GmbH André Bauer Administrator August-Bebel-Straße 48 01219 Dresden GERMANY tel.: 0351 41884875 e-mail: abauer@xxxxxxxxx abauer@xxxxxxxxx <mailto:Email> www.magix.com <http://www.magix.com/> Geschäftsführer | Managing Directors: Dr. Arnd Schröder, Klaus Schmidt Amtsgericht | Commercial Register: Berlin Charlottenburg, HRB 127205 Find us on: <http://www.facebook.com/MAGIX> <http://www.twitter.com/magix_de> <http://www.youtube.com/wwwmagixcom> <http://www.magixmagazin.de> ---------------------------------------------------------------------- The information in this email is intended only for the addressee named above. Access to this email by anyone else is unauthorized. If you are not the intended recipient of this message any disclosure, copying, distribution or any action taken in reliance on it is prohibited and may be unlawful. MAGIX does not warrant that any attachments are free from viruses or other defects and accepts no liability for any losses resulting from infected email transmissions. Please note that any views expressed in this email may be those of the originator and do not necessarily represent the agenda of the company. ---------------------------------------------------------------------- _______________________________________________ Gluster-users mailing list Gluster-users@xxxxxxxxxxx http://www.gluster.org/mailman/listinfo/gluster-users
