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Re: [Qemu-devel] [patch 6/7] QEMU live block copy (update)
From: |
Marcelo Tosatti |
Subject: |
Re: [Qemu-devel] [patch 6/7] QEMU live block copy (update) |
Date: |
Wed, 15 Jun 2011 12:49:30 -0300 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Tue, Jun 07, 2011 at 12:15:55PM +0200, Jiri Denemark wrote:
> > + }
> > + },
>
> What about using the same form of progress reporting as used by query-migrate?
> That is, instead of
Done.
> One can trivially compute percentage from that but it's impossible to get this
> kind of data when only percentage is reported. And total can even change in
> time if needed (just like it changes during migration).
>
> > + {"device":"ide1-hd1",
> > + "status":"failed"
> > + }
>
> Is there any way we can get the exact error which made it fail, such as EPERM
> or ENOSPC?
The errors that can generate "failed" here are internal to QEMU, so i
don't think exporting them to management application makes sense. This
are errors such as EIO from file system.
Error processing should be done in the block_copy command, that is where
checks of the destination image are performed.
[Qemu-devel] [patch 5/7] Add vmstop code for live block copy, Marcelo Tosatti, 2011/06/06
[Qemu-devel] [patch 3/7] Add error messages for live block copy, Marcelo Tosatti, 2011/06/06
[Qemu-devel] [patch 4/7] Add blkdebug points for live block copy, Marcelo Tosatti, 2011/06/06
[Qemu-devel] [patch 2/7] Add blkmirror block driver, Marcelo Tosatti, 2011/06/06