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From "Simon Weller (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CLOUDSTACK-210) KVM Snapshot fails on RHEL 6.3 because of qemu-img help text differences
Date Fri, 05 Oct 2012 12:06:03 GMT

    [ https://issues.apache.org/jira/browse/CLOUDSTACK-210?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13470254#comment-13470254
] 

Simon Weller commented on CLOUDSTACK-210:
-----------------------------------------

My personal feeling is this should be fixed as it's currently in 3.x.  I think that at some
level (whether it's only CLVM snaps), this needs to be supported on 4.0 for KVM. It's going
to be hard to swallow for KVM users if there are zero options for snaps.
                
> KVM Snapshot fails on RHEL 6.3 because of qemu-img help text differences
> ------------------------------------------------------------------------
>
>                 Key: CLOUDSTACK-210
>                 URL: https://issues.apache.org/jira/browse/CLOUDSTACK-210
>             Project: CloudStack
>          Issue Type: Bug
>          Components: KVM
>    Affects Versions: pre-4.0.0
>            Reporter: Prasanna Santhanam
>            Assignee: edison su
>             Fix For: 4.1.0
>
>
> From: http://markmail.org/thread/fndid26baau3sxdl
> On Wed, Sep 26, 2012 at 08:23:31AM -0400, Sowmya Krishnan wrote:
> > Here's the output on Ubuntu:
> > qemu-img --help|grep convert |grep snapshot
> >   convert [-c] [-p] [-f fmt] [-t cache] [-O output_fmt] [-o options] [-s snapshot_name]
[-S sparse_size] filename [filename2 [...]] output_filename
> > 
> > which is similar to RHEL6.2:
> > qemu-img --help|grep convert |grep snapshot
> >   convert [-c] [-p] [-f fmt] [-t cache] [-O output_fmt] [-o options] [-s snapshot_name]
[-S sparse_size] filename [filename2 [...]] output_filename
> >
> > Returns null on RHEL6.3:
> > [root@rhel63 ~]# qemu-img --help|grep convert |grep snapshot
> > [root@rhel63 ~]#
> Thanks, Could you post a bug?
> The issue seems to be in
>  plugins/hypervisors/kvm/src/com/cloud/hypervisor/kvm/resource/LibvirtComputingResource.java
> 4289     private boolean isSnapshotSupported() {
> 4290         String result = executeBashScript("qemu-img --help|grep -E convert|snapshot");
> 4291         if (result != null) {
> 4292             return false;
> 4293         } else {
> 4294             return true;
> 4295         }
> 4296     }

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