[Gluster-users] [Gluster-devel] Glusterfs 3.7.11 with LibGFApi in Qemu on Ubuntu Xenial does not work

André Bauer abauer at magix.net
Sat Nov 26 10:52:59 UTC 2016


Just upgraded our Storage nodes to GlusterFS 3.8.6.
Same problem on Xenial KVM Clients.



Am 23.08.2016 um 06:51 schrieb Poornima Gurusiddaiah:
> Hi,
> 
> Because of the bugs:
> https://bugzilla.redhat.com/show_bug.cgi?id=1350880
> https://bugzilla.redhat.com/show_bug.cgi?id=1352482
> 
> 3.7.11 is not a good version to be on for Qemu use case, please update
> to 3.7.13, which has fix for both the bugs.
> 
> W.R.T your original permission denied issue, please check the firewall
> settings, and also check if its not selinux issue.
> 
> Regards,
> Poornima
> ------------------------------------------------------------------------
> 
>     *From: *"Stephen Howell" <stephen at allthatwemight.be>
>     *To: *gluster-devel at gluster.org
>     *Sent: *Saturday, August 20, 2016 7:54:48 AM
>     *Subject: *[Gluster-devel] Glusterfs 3.7.11 with LibGFApi in Qemu on
>     Ubuntu Xenial does not work
> 
>     I would like to follow up on a previous thread. I have here 3
>     machines running Ubuntu. All were running 14.04 LTS and of these two
>     have been upgraded to 16.04. They all run QEMU with a shared
>     GlusterFS mount for storing VM images. Libgfapi was configured and
>     running on all hosts with 14.04 but has stopped recently with 16.04.
> 
>     I can see exactly the same problems as mentioned here on the 16.04
>     machines, with these packages:
> 
>     ii  glusterfs-client                            
>     3.7.14-ubuntu1~xenial1                                 amd64      
>      clustered file-system (client package)
>     ii  glusterfs-common                            
>     3.7.14-ubuntu1~xenial1                                 amd64      
>      GlusterFS common libraries and translator modules
>     ii  glusterfs-server                            
>     3.7.14-ubuntu1~xenial1                                 amd64      
>      clustered file-system (server package)
>     ii  qemu-block-extra:amd64                      
>     1:2.5+dfsg-5ubuntu10.2glusterfs3.7.14xenial1           amd64      
>      extra block backend modules for qemu-system and qemu-utils
>     ii  qemu-kvm                                    
>     1:2.5+dfsg-5ubuntu10.2glusterfs3.7.14xenial1           amd64      
>      QEMU Full virtualization
>     ii  qemu-system-common                          
>     1:2.5+dfsg-5ubuntu10.2glusterfs3.7.14xenial1           amd64      
>      QEMU full system emulation binaries (common files)
>     ii  qemu-system-x86                            
>      1:2.5+dfsg-5ubuntu10.2glusterfs3.7.14xenial1           amd64      
>      QEMU full system emulation binaries (x86)
>     ii  qemu-utils                                  
>     1:2.5+dfsg-5ubuntu10.2glusterfs3.7.14xenial1           amd64      
>      QEMU utilities
> 
>     Packages on the 14.04 instance:
> 
>     ii  glusterfs-client                       3.7.13-ubuntu1~trusty1  
>                         amd64        clustered file-system (client package)
>     ii  glusterfs-common                       3.7.13-ubuntu1~trusty1  
>                         amd64        GlusterFS common libraries and
>     translator modules
>     ii  glusterfs-server                       3.7.13-ubuntu1~trusty1  
>                         amd64        clustered file-system (server package)
>     ii  qemu-common                          
>      2.0.0+dfsg-2ubuntu1.24glusterfs3.7.12trusty1 all          dummy
>     transitional package from qemu-common to qemu-keymaps
>     ii  qemu-keymaps                          
>     2.0.0+dfsg-2ubuntu1.24glusterfs3.7.12trusty1 all          QEMU
>     keyboard maps
>     ii  qemu-kvm                              
>     2.0.0+dfsg-2ubuntu1.24glusterfs3.7.12trusty1 amd64        QEMU Full
>     virtualization
>     ii  qemu-system-common                    
>     2.0.0+dfsg-2ubuntu1.24glusterfs3.7.12trusty1 amd64        QEMU full
>     system emulation binaries (common files)
>     ii  qemu-system-x86                      
>      2.0.0+dfsg-2ubuntu1.24glusterfs3.7.12trusty1 amd64        QEMU full
>     system emulation binaries (x86)
>     ii  qemu-utils                            
>     2.0.0+dfsg-2ubuntu1.24glusterfs3.7.12trusty1 amd64        QEMU utilities
> 
> 
>     As you can see I am using Andre (monotek)'s packages to employ the
>     Gluster protocol in QEMU under Ubuntu (not compiled by default). The
>     versions of Gluster are similar and have indeed been identical in my
>     prior testing. The relevant volume options were set, apparmour rules
>     were added and the setup worked without issue serving block devices
>     over libgfapi for 10+ VMs. However on upgrading to 16.04 there are
>     issues relating to QEMU being unable to access the Gluster volume
>     file when starting a VM. I can use qemu-img to create a blank file
>     using the Gluster profocol but I cannot then start a VM using that
>     file. 
> 
>     Error message:
> 
>      [MSGID: 104007] [glfs-mgmt.c:637:glfs_mgmt_getspec_cbk]
>     0-glfs-mgmt: failed to fetch volume file (key:VM) [Invalid argument]
>     [2016-08-20 11:28:02.985483] E [MSGID: 104024]
>     [glfs-mgmt.c:738:mgmt_rpc_notify] 0-glfs-mgmt: failed to connect
>     with remote-host: 127.0.0.1 (Permission denied) [Permission denied]
>     2016-08-20T11:28:03.979968Z qemu-system-x86_64: -drive
>     file=gluster://127.0.0.1/VM/vm1.qcow2,format=qcow2,if=none,id=drive-virtio-disk0,cache=none
>     <http://127.0.0.1/VM/vm1.qcow2,format=qcow2,if=none,id=drive-virtio-disk0,cache=none>:
>     Gluster connection failed for server=127.0.0.1 port=0 volume=VM
>     image=vm1.qcow2 transport=tcp: Permission denied
> 
>     Any assistance on changes to permissions or apparmour in 16.04 would
>     be greatly appreciated.
> 
>     thanks
>     Stephen
> 
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> 
> 
> 
> 
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