[Gluster-users] Gluster 3.4 QEMU and Permission Denied Errors

Samuli Heinonen samppah at neutraali.net
Tue Sep 17 07:05:19 UTC 2013

Hello Andrew,

How are you booting/managing VM's? Which user you use to launch them?

Have you enabled Gluster mounting from insecure ports? It needs two 
changes. You have to edit glusterd.vol (in /etc/glusterfs directory) and 
add line "option rpc-auth-allow-insecure on". Also you have to set 
volume option server.allow-insecure on (ie. gluster volume set volname 
server.allow-insecure on). Restart of glusterd and stop and start of the 
volume is required for these changes to take effect.

16.9.2013 21:38, Andrew Niemantsverdriet kirjoitti:
> Hey List,
> I'm trying to test out using Gluster 3.4 for virtual machine disks. My
> enviroment consists of two Fedora 19 hosts with gluster and qemu/kvm
> installed.
> I have a single volume on gluster called vmdata that contains my qcow2
> formated image created like this:
> qemu-img create -f qcow2 gluster://localhost/vmdata/test1.qcow 8G
> I'm able to boot my created virtual machine but in the logs I see this:
> [2013-09-16 15:16:04.471205] E [addr.c:152:gf_auth] 0-auth/addr:
> client is bound to port 46021 which is not privileged
> [2013-09-16 15:16:04.471277] I
> [server-handshake.c:567:server_setvolume] 0-vmdata-server: accepted
> client from gluster1.local-1061-2013/09/16-15:16:04:441166-vmdata-client-1-0
> (version: 3.4.0)[2013-09-16 15:16:04.488000] I
> [server-rpc-fops.c:1572:server_open_cbk] 0-vmdata-server: 18: OPEN
> /test1.qcow (6b63a78b-7d5c-4195-a172-5bb6ed1e7dac) ==> (Permission
> denied)
> I have turned off SELinux to be sure that isn't in the way. When I
> look at the permissions on the file using ls -l I see the file is set
> to 600, this doesn't seem right. I tried manually changing the
> permission to 755 as a test and as soon as the machine booted it was
> changed back to 600.
> Any hints as to what is going on and how to get the disk functioning?
> The machine will boot but as soon as anything is written to disk it
> will hang forever.
> Thanks,

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