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Re: [Qemu-discuss] filename in json is unsupport for rbd in qemu-img?

From: Han Han
Subject: Re: [Qemu-discuss] filename in json is unsupport for rbd in qemu-img?
Date: Thu, 18 May 2017 10:24:14 +0800

Thanks for your reply.  I just want to try if JSON filename works in
latest qemu. :)

On Wed, May 17, 2017 at 9:00 PM, Max Reitz <address@hidden> wrote:
> On 2017-05-17 05:21, Han Han wrote:
>> Hello, I am using qemu-2.9 and try this command:
>> # qemu-img info
>> 'json:{"file.driver":"rbd","file.filename":"rbd:rbd/rbd.img:mon_host=XXXX"}'
>> qemu-img: Could not open
>> 'json:{"file.driver":"rbd","file.filename":"rbd:rbd/rbd.img:mon_host=XXXX"}':
>> Parameters 'pool' and 'image' are required
>> Refer to https://bugzilla.redhat.com/show_bug.cgi?id=1371758#c5, it
>> works in qemu-2.8. So I want make sure if this json format is disabled
>> in qemu-2.9.
> Yes, it is. See here how the options work now:
> http://git.qemu.org/?p=qemu.git;a=blob;f=qapi/block-core.json;h=6b974b952fff1b4fd3d65d9a4d13b60de28e2c83;hb=HEAD#l2625
> As of 2.9, the blockdev-add QMP command is considered stable. Therefore,
> this new RBD interface is stable, too.
> But I'm not sure why you would use a JSON filename there anyway. Why not
> just use
> $ qemu-img info rbd:rbd/rbd.img:mon_host=XXXX
> ?
> Max

Han Han
Associate Quality Engineer

Email: address@hidden
Phone: +861065339333

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