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Re: [Qemu-devel] [PATCH V19 00/12] Quorum block filter
From: |
Eric Blake |
Subject: |
Re: [Qemu-devel] [PATCH V19 00/12] Quorum block filter |
Date: |
Fri, 21 Feb 2014 15:49:15 -0700 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.3.0 |
On 02/21/2014 02:21 PM, Benoît Canet wrote:
> Hi this is the latest version of the quorum block filter.
>
> This version fix the qmp events and a small rebase conflict.
>
> tested:
>
> tested that json qmp string are correct and parse well with python
>
> Ran qemu-iotest including 081 ok
>
> quorum command line ok
> quorum command line snapshot transaction ok
> quorum QMP by reference ok
> quorum QMP by reference and snapshot transaction ok
> quorum QMP at once ok
> quorum QMP at once and snapshot transaction ok
Generic question:
When the quorum detects mismatch but there was still a majority, is
there a way to request that the quorum correct the odd man out? That
is, if I have a 2/3 quorum, and files A and B read '1' while C reads
'2', can the mere act of reading that sector be used to write '1' into C?
Obviously, this should be an optional mode, not enabled by default; but
I could envision creating a self-healing redundant array via this method.
--
Eric Blake eblake redhat com +1-919-301-3266
Libvirt virtualization library http://libvirt.org
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- [Qemu-devel] [PATCH V19 06/12] quorum: Add quorum mechanism., (continued)
- [Qemu-devel] [PATCH V19 06/12] quorum: Add quorum mechanism., Benoît Canet, 2014/02/21
- Re: [Qemu-devel] [PATCH V19 06/12] quorum: Add quorum mechanism., Eric Blake, 2014/02/21
- Re: [Qemu-devel] [PATCH V19 06/12] quorum: Add quorum mechanism., Benoît Canet, 2014/02/21
- Re: [Qemu-devel] [PATCH V19 06/12] quorum: Add quorum mechanism., Kevin Wolf, 2014/02/21
- Re: [Qemu-devel] [PATCH V19 06/12] quorum: Add quorum mechanism., Eric Blake, 2014/02/21
- Re: [Qemu-devel] [PATCH V19 06/12] quorum: Add quorum mechanism., Benoît Canet, 2014/02/21
- Re: [Qemu-devel] [PATCH V19 06/12] quorum: Add quorum mechanism., Eric Blake, 2014/02/21
- Re: [Qemu-devel] [PATCH V19 06/12] quorum: Add quorum mechanism., Eric Blake, 2014/02/21
[Qemu-devel] [PATCH V19 05/12] quorum: Add quorum_aio_readv., Benoît Canet, 2014/02/21
Re: [Qemu-devel] [PATCH V19 00/12] Quorum block filter, Kevin Wolf, 2014/02/21
Re: [Qemu-devel] [PATCH V19 00/12] Quorum block filter,
Eric Blake <=