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Created attachment 877133[details]
libvirtd.log
Description of problem:
libvirt can not do vol-download for gluster pool volume
Version-Release number of selected component (if applicable):
libvirt-1.1.1-28.el7.x86_64
qemu-kvm-rhev-1.5.3-55.el7.x86_64
How reproducible:
100%
Steps to Reproduce:
1. Create gluster volume
# gluster volume create gluster-vol1 xx.xx.xx.xx:/br1 force
volume create: gluster-vol1: success: please start the volume to access data
# gluster volume start gluster-vol1
volume start: gluster-vol1: success
# qemu-img create gluster://xx.xx.xx.xx/gluster-vol1/rh.img 1G
Formatting 'gluster://xx.xx.xx.xx/gluster-vol1/rh.img', fmt=raw size=1073741824
2. Create pool
# virsh pool-create /tmp/pool.xml
Pool gluster-pool created from /tmp/pool.xml
# virsh vol-list gluster-pool
Name Path
-----------------------------------------
rh.img gluster://xx.xx.xx.xx/gluster-vol1/rh.img
3. do vol-download
# virsh vol-download rh.img /tmp/tt.
tt.img tt.xml
[root@4-196 virt-test]# virsh vol-download rh.img /tmp/tt.download --pool gluster-pool
error: cannot download from volume rh.img
error: Unable to open stream for 'gluster://xx.xx.xx.xx/gluster-vol1/rh.img': No such file or directory
Actual results:
Fail to download
Expected results:
Succeed to download
Additional info:
The error message is wrong, we don't support the operation on gluster volumes.
I've fixed the error reporting with:
commit 589c2ad93fa0eab8a093037ee95391619f700eb0
Author: Peter Krempa <pkrempa>
Date: Mon Jul 7 16:50:11 2014 +0200
storage: Split out volume upload/download as separate backend function
For non-local storage drivers we can't expect to use the FDStream
backend for up/downloading volumes. Split the code into a separate
backend function so that we can add protocol specific code later.
v1.2.6-120-g589c2ad
And cloned this bug as https://bugzilla.redhat.com/show_bug.cgi?id=1118756 that tracks the feature request to add volume download/upload on gluster.
Verify this bug with the following package version:
libvirt-1.2.8-11.el7.x86_64
qemu-img-rhev-2.1.2-17.el7.x86_64
kernel-3.10.0-219.el7.x86_64
Steps:
1. prepare one gluster pool, there are some volumes in the pool
# virsh pool-list
Name State Autostart
-------------------------------------------
default active yes
gluster-pool active no
# virsh vol-list gluster-pool
Name Path
------------------------------------------------------------------------------
test.qcow2 gluster://#glusterServerIP#/gluster-vol1/test.qcow2
test.raw gluster://#glusterServerIP#/gluster-vol1/test.raw
2. download one volume to local will fail with the correct error message.
# virsh vol-download test.qcow2 /tmp/test.download --pool gluster-pool
error: cannot download from volume test.qcow2
error: this function is not supported by the connection driver: storage pool doesn't support volume download
Change the bug status to verify.
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://rhn.redhat.com/errata/RHSA-2015-0323.html
Created attachment 877133 [details] libvirtd.log Description of problem: libvirt can not do vol-download for gluster pool volume Version-Release number of selected component (if applicable): libvirt-1.1.1-28.el7.x86_64 qemu-kvm-rhev-1.5.3-55.el7.x86_64 How reproducible: 100% Steps to Reproduce: 1. Create gluster volume # gluster volume create gluster-vol1 xx.xx.xx.xx:/br1 force volume create: gluster-vol1: success: please start the volume to access data # gluster volume start gluster-vol1 volume start: gluster-vol1: success # qemu-img create gluster://xx.xx.xx.xx/gluster-vol1/rh.img 1G Formatting 'gluster://xx.xx.xx.xx/gluster-vol1/rh.img', fmt=raw size=1073741824 2. Create pool # virsh pool-create /tmp/pool.xml Pool gluster-pool created from /tmp/pool.xml # virsh vol-list gluster-pool Name Path ----------------------------------------- rh.img gluster://xx.xx.xx.xx/gluster-vol1/rh.img 3. do vol-download # virsh vol-download rh.img /tmp/tt. tt.img tt.xml [root@4-196 virt-test]# virsh vol-download rh.img /tmp/tt.download --pool gluster-pool error: cannot download from volume rh.img error: Unable to open stream for 'gluster://xx.xx.xx.xx/gluster-vol1/rh.img': No such file or directory Actual results: Fail to download Expected results: Succeed to download Additional info: