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Bug 1394681 - RFE: qemu-kvm: support multiple volume hosts for gluster volumes
Summary: RFE: qemu-kvm: support multiple volume hosts for gluster volumes
Keywords:
Status: CLOSED WONTFIX
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: qemu-kvm
Version: 7.3
Hardware: x86_64
OS: Linux
unspecified
high
Target Milestone: rc
: ---
Assignee: Jeff Cody
QA Contact: Suqin Huang
URL:
Whiteboard:
Depends On: 1283895
Blocks:
TreeView+ depends on / blocked
 
Reported: 2016-11-14 08:48 UTC by SATHEESARAN
Modified: 2017-10-01 02:46 UTC (History)
11 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2017-10-01 02:46:58 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)

Description SATHEESARAN 2016-11-14 08:48:16 UTC 
Description of problem:
-----------------------
qemu provides native driver for glusterfs ( which uses libgfapi of glusterfs ), for the VMs to access their disk images.

If the host section contains more than one host, I am unable to start the VM

Version-Release number of selected component (if applicable):
-------------------------------------------------------------
RHEL 7.3
RHGS 3.2.0 ( interim build, not yet GA'ed )
qemu-img-1.5.3-126.el7.x86_64
ipxe-roms-qemu-20160127-5.git6366fa7a.el7.noarch
qemu-kvm-common-1.5.3-126.el7.x86_64
libvirt-daemon-driver-qemu-2.0.0-10.el7.x86_64
qemu-kvm-1.5.3-126.el7.x86_64
libvirt-daemon-config-network-2.0.0-10.el7.x86_64
libvirt-python-2.0.0-2.el7.x86_64
libvirt-daemon-driver-storage-2.0.0-10.el7.x86_64
libvirt-daemon-2.0.0-10.el7.x86_64
libvirt-daemon-driver-qemu-2.0.0-10.el7.x86_64
libvirt-daemon-driver-interface-2.0.0-10.el7.x86_64
libvirt-daemon-driver-network-2.0.0-10.el7.x86_64
libvirt-daemon-config-nwfilter-2.0.0-10.el7.x86_64
libvirt-daemon-driver-nodedev-2.0.0-10.el7.x86_64
libvirt-2.0.0-10.el7.x86_64
libvirt-daemon-driver-nwfilter-2.0.0-10.el7.x86_64
libvirt-daemon-driver-secret-2.0.0-10.el7.x86_64
libvirt-client-2.0.0-10.el7.x86_64
libvirt-daemon-driver-lxc-2.0.0-10.el7.x86_64

How reproducible:
-----------------
Always

Steps to Reproduce:
-------------------
1. Create a VM image on the replica 3 gluster volume ( there are 3 gluster servers )
2. Create a VM ( by editing the vm.xml to make following changes )
 <disk type='network' device='disk'>
      <driver name='qemu' type='raw'/>
      <source protocol='gluster' name='rep3vol/vm7.img'>
        <host name='dhcp37-54.lab.eng.blr.redhat.com' port='24007'/>
        <host name='dhcp37-138.lab.eng.blr.redhat.com' port='24007'/>
        <host name='dhcp37-50.lab.eng.blr.redhat.com' port='24007'/>
      </source>
      <target dev='vda' bus='virtio'/>
      <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
    </disk>
3. Start the VM

Actual results:
---------------
Unable to start the VM

Expected results:
-----------------
VM should get started

Additional info:
----------------
Errors as seen :
[root@rhs-client10 repvol]# virsh start vm7
error: Failed to start domain vm7
error: internal error: process exited while connecting to monitor: 2016-11-14T08:29:44.266843Z qemu-kvm: -drive file.driver=gluster,file.volume=rep3vol,file.path=/vm7.img,file.server.0.type=tcp,file.server.0.host=dhcp37-54.lab.eng.blr.redhat.com,file.server.0.port=24007,file.server.1.type=tcp,file.server.1.host=dhcp37-138.lab.eng.blr.redhat.com,file.server.1.port=24007,file.server.2.type=tcp,file.server.2.host=dhcp37-50.lab.eng.blr.redhat.com,file.server.2.port=24007,format=raw,if=none,id=drive-virtio-disk0,werror=stop,rerror=stop: could not open disk image drive-virtio-disk0: The 'gluster' block driver requires a file name
Comment 1 SATHEESARAN 2016-11-14 08:54:36 UTC 
The same issue was fixed with qemu-kvm-rhev (with this bug - https://bugzilla.redhat.com/show_bug.cgi?id=1247933

I suppose the same fix is required for qemu-kvm to support multiple gluster hosts
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