From: Max Reitz <mreitz@redhat.com>
To: "Benoît Canet" <benoit.canet@irqsave.net>, qemu-devel@nongnu.org
Cc: kwolf@redhat.com, famz@redhat.com,
"Benoît Canet" <benoit@irqsave.net>,
stefanha@redhat.com
Subject: Re: [Qemu-devel] [PATCH V18 06/12] quorum: Add quorum mechanism.
Date: Tue, 18 Feb 2014 19:02:25 +0100 [thread overview]
Message-ID: <5303A031.1060302@redhat.com> (raw)
In-Reply-To: <1392725487-18330-7-git-send-email-benoit.canet@irqsave.net>
On 18.02.2014 13:11, Benoît Canet wrote:
> From: Benoît Canet <benoit@irqsave.net>
>
> This patchset enables the core of the quorum mechanism.
> The num_children reads are compared to get the majority version and if this
> version exists more than threshold times the guest won't see the error at all.
>
> If a block is corrupted or if an error occurs during an IO or if the quorum
> cannot be established QMP events are used to report to the management.
>
> Use gnutls's SHA-256 to compare versions.
>
> --enable-quorum must be used to enable the feature.
>
> Signed-off-by: Benoit Canet <benoit@irqsave.net>
> ---
> block/Makefile.objs | 2 +-
> block/quorum.c | 391 +++++++++++++++++++++++++++++++++++++++++++++-
> configure | 36 +++++
> docs/qmp/qmp-events.txt | 36 +++++
> include/monitor/monitor.h | 2 +
> monitor.c | 2 +
> 6 files changed, 467 insertions(+), 2 deletions(-)
Reviewed-by: Max Reitz <mreitz@redhat.com>
next prev parent reply other threads:[~2014-02-18 18:02 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-02-18 12:11 [Qemu-devel] [PATCH V18 00/12] Quorum block filter Benoît Canet
2014-02-18 12:11 ` [Qemu-devel] [PATCH V18 01/12] quorum: Create quorum.c, add QuorumChildRequest and QuorumAIOCB Benoît Canet
2014-02-18 12:11 ` [Qemu-devel] [PATCH V18 02/12] quorum: Create BDRVQuorumState and BlkDriver and do init Benoît Canet
2014-02-18 12:11 ` [Qemu-devel] [PATCH V18 03/12] quorum: Add quorum_aio_writev and its dependencies Benoît Canet
2014-02-18 17:55 ` Max Reitz
2014-02-18 12:11 ` [Qemu-devel] [PATCH V18 04/12] blkverify: Extract qemu_iovec_clone() and qemu_iovec_compare() from blkverify Benoît Canet
2014-02-18 12:11 ` [Qemu-devel] [PATCH V18 05/12] quorum: Add quorum_aio_readv Benoît Canet
2014-02-18 12:11 ` [Qemu-devel] [PATCH V18 06/12] quorum: Add quorum mechanism Benoît Canet
2014-02-18 18:02 ` Max Reitz [this message]
2014-02-18 12:11 ` [Qemu-devel] [PATCH V18 07/12] quorum: Add quorum_getlength() Benoît Canet
2014-02-18 12:11 ` [Qemu-devel] [PATCH V18 08/12] quorum: Add quorum_invalidate_cache() Benoît Canet
2014-02-18 12:11 ` [Qemu-devel] [PATCH V18 09/12] quorum: Add quorum_co_flush() Benoît Canet
2014-02-18 18:04 ` Max Reitz
2014-02-18 12:11 ` [Qemu-devel] [PATCH V18 10/12] quorum: Implement recursive .bdrv_recurse_is_first_non_filter in quorum Benoît Canet
2014-02-18 12:11 ` [Qemu-devel] [PATCH V18 11/12] quorum: Add quorum_open() and quorum_close() Benoît Canet
2014-02-18 17:37 ` Leandro Dorileo
2014-02-18 17:48 ` Benoît Canet
2014-02-18 19:39 ` Leandro Dorileo
2014-02-18 17:49 ` Max Reitz
2014-02-18 18:12 ` Max Reitz
2014-02-18 12:11 ` [Qemu-devel] [PATCH V18 12/12] quorum: Add unit test Benoît Canet
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