similar to: How to set up a 4 way gluster file system

Hi, With replica 2 volumes one can easily end up in split-brains if there are frequent disconnects and high IOs going on. If you use replica 3 or arbiter volumes, it will guard you by using the quorum mechanism giving you both consistency and availability. But in replica 2 volumes, quorum does not make sense since it needs both the nodes up to guarantee consistency, which costs availability. If

Hi, I have 4 nodes, so a quorum would be 3 of 4. The Q is I suppose why does the documentation give this command as an example without qualifying it? SO I am running the wrong command? I want a "raid10" On 27 April 2018 at 18:05, Karthik Subrahmanya <ksubrahm at redhat.com> wrote: > Hi, > > With replica 2 volumes one can easily end up in split-brains if there are

Hi, I am on centos 7.4 with gluster 4. I am trying to a distributed and replicated volume on the 4 nodes I am getting this un-expected qualification, [root at glustep1 brick1]# gluster volume create gv0 replica 2 glusterp1:/bricks/brick1/gv0 glusterp2:/bricks/brick1/gv0 glusterp3:/bricks/brick1/gv0 glusterp4:/bricks/brick1/gv0 8><---- Replica 2 volumes are prone to split-brain. Use

On Wed, Mar 28, 2018 at 02:57:55PM +1300, Thing wrote: > Hi, > > Thanks, yes, not very familiar with Centos and hence googling took a while > to find a 4.0 version at, > > https://wiki.centos.org/SpecialInterestGroup/Storage The announcement for Gluster 4.0 in CentOS should contain all the details that you need as well:

Hi, I seem to have a split brain issue, but I cannot figure out where this is and what it is, can someone help me pls, I cant find what to fix here. ========== root at salt-001:~# salt gluster* cmd.run 'df -h' glusterp2.graywitch.co.nz: Filesystem Size Used Avail Use% Mounted on /dev/mapper/centos-root

Whatever repair happened has now finished but I still have this, I cant find anything so far telling me how to fix it. Looking at http://staged-gluster-docs.readthedocs.io/en/release3.7.0beta1/Features/heal-info-and-split-brain-resolution/ I cant determine what file? dir gvo? is actually the issue. [root at glusterp1 gv0]# gluster volume heal gv0 info split-brain Brick

Hi, Which version of gluster you are using? You can find which file is that using the following command find <brickpath> -samefile <brickpath/.glusterfs/<first two bits of gfid>/<next 2 bits of gfid>/<full gfid> Please provide the getfatr output of the file which is in split brain. The steps to recover from split-brain can be found here,

[root at glusterp1 gv0]# !737 gluster v status Status of volume: gv0 Gluster process TCP Port RDMA Port Online Pid ------------------------------------------------------------------------------ Brick glusterp1:/bricks/brick1/gv0 49152 0 Y 5229 Brick glusterp2:/bricks/brick1/gv0 49152 0 Y 2054 Brick

How do I find what "eafb8799-4e7a-4264-9213-26997c5a4693" is? https://docs.gluster.org/en/v3/Troubleshooting/gfid-to-path/ On May 21, 2018 3:22:01 PM PDT, Thing <thing.thing at gmail.com> wrote: >Hi, > >I seem to have a split brain issue, but I cannot figure out where this >is >and what it is, can someone help me pls, I cant find what to fix here. >

[trying to read, I cant understand what is wrong? root at glusterp1 gv0]# gluster volume heal gv0 info Brick glusterp1:/bricks/brick1/gv0 <gfid:eafb8799-4e7a-4264-9213-26997c5a4693> - Is in split-brain Status: Connected Number of entries: 1 Brick glusterp2:/bricks/brick1/gv0 <gfid:eafb8799-4e7a-4264-9213-26997c5a4693> - Is in split-brain Status: Connected Number of entries: 1

I tried looking for a file of the same size and the gfid doesnt show up, 8><--- [root at glusterp2 fb]# pwd /bricks/brick1/gv0/.glusterfs/ea/fb [root at glusterp2 fb]# ls -al total 3130892 drwx------. 2 root root 64 May 22 13:01 . drwx------. 4 root root 24 May 8 14:27 .. -rw-------. 1 root root 3294887936 May 4 11:07 eafb8799-4e7a-4264-9213-26997c5a4693 -rw-r--r--. 1 root

I tried this already. 8><--- [root at glusterp2 fb]# find /bricks/brick1/gv0 -samefile /bricks/brick1/gv0/.glusterfs/ea/fb/eafb8799-4e7a-4264-9213-26997c5a4693 /bricks/brick1/gv0/.glusterfs/ea/fb/eafb8799-4e7a-4264-9213-26997c5a4693 [root at glusterp2 fb]# 8><--- gluster 4 Centos 7.4 8><--- df -h [root at glusterp2 fb]# df -h Filesystem

also I have this "split brain"? [root at glusterp1 gv0]# gluster volume heal gv0 info Brick glusterp1:/bricks/brick1/gv0 <gfid:eafb8799-4e7a-4264-9213-26997c5a4693> - Is in split-brain Status: Connected Number of entries: 1 Brick glusterp2:/bricks/brick1/gv0 <gfid:eafb8799-4e7a-4264-9213-26997c5a4693> - Is in split-brain /glusterp1/images/centos-server-001.qcow2

Hi, I have 3 Centos7.4 machines setup as a 3 way raid 1. Due to an oopsie on my part for glusterp1 /bricks/brick1/gv0 didnt mount on boot and as a result its empty. Meanwhile I have data on glusterp2 /bricks/brick1/gv0 and glusterp3 /bricks/brick1/gv0 as expected. Is there a way to get glusterp1's gv0 to sync off the other 2? there must be but, I have looked at the gluster docs and I

Show us output from: gluster v status It should be easy to fix. Stop gluster daemon on that node, mount the brick, start gluster daemon again. Check: gluster v status Does it show the brick up? HTH, Diego On Wed, May 9, 2018, 20:01 Thing <thing.thing at gmail.com> wrote: > Hi, > > I have 3 Centos7.4 machines setup as a 3 way raid 1. > > Due to an oopsie on my part for

Hi, On a debian 9 client, ======== root at kvm01:/var/lib/libvirt# dpkg -l glusterfs-client 8><--- ii glusterfs-client 3.8.8-1 amd64 clustered file-system (client package) root at kvm01:/var/lib/libvirt# ======= I am trying to to do a mount to a Centos 7 gluster setup, ======= [root at glustep1 libvirt]# rpm -q glusterfs glusterfs-4.0.2-1.el7.x86_64

Hi Neil, docs mention two live nodes of replica 3 blaming each other and refusing to do IO. https://gluster.readthedocs.io/en/latest/Administrator%20Guide/Split%20brain%20and%20ways%20to%20deal%20with%20it/#1-replica-3-volume On Sep 7, 2017 17:52, "Alastair Neil" <ajneil.tech at gmail.com> wrote: > *shrug* I don't use arbiter for vm work loads just straight replica 3.

*shrug* I don't use arbiter for vm work loads just straight replica 3. There are some gotchas with using an arbiter for VM workloads. If quorum-type is auto and a brick that is not the arbiter drop out then if the up brick is dirty as far as the arbiter is concerned i.e. the only good copy is on the down brick you will get ENOTCONN and your VMs will halt on IO. On 6 September 2017 at 16:06,

I've configured 6 bricks as distributed-replicated with replica 2, expecting that all active bricks would be usable so long as a quorum of at least 4 live bricks is maintained. However, I have just found http://docs.gluster.org/en/latest/Administrator%20Guide/Split%20brain%20and%20ways%20to%20deal%20with%20it/ Which states that "In a replica 2 volume... If we set the client-quorum

Hello, i installed glusterfs 3.11.3 version 3 nodes ubuntu 16.04 machine. All machines have same /etc/hosts. node1 hostname pri.ostechnix.lan node2 hostname sec.ostechnix.lan node2 hostname third.ostechnix.lan 51.15.77.14 pri.ostechnix.lan pri 51.15.90.60 sec.ostechnix.lan sec 163.172.151.120 third.ostechnix.lan third volume create command is root at