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Re: [Qemu-devel] [Qemu-block] [PATCH COLO-Block v6 07/16] Add new block
From: |
Wen Congyang |
Subject: |
Re: [Qemu-devel] [Qemu-block] [PATCH COLO-Block v6 07/16] Add new block driver interface to connect/disconnect the remote target |
Date: |
Wed, 1 Jul 2015 09:01:16 +0800 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.7.0 |
On 07/01/2015 03:01 AM, Dr. David Alan Gilbert wrote:
> * Wen Congyang (address@hidden) wrote:
>> On 06/27/2015 03:03 AM, Dr. David Alan Gilbert wrote:
>
> <snip>
>
>>> Ah, I hadn't realised you could do that; so do you just do:
>>>
>>> migrate_set_parameter colo on
>>> migrate -d -b tcp:otherhhost:port
>>>
>>> How does the secondary know to feed that data straight into the disk without
>>> recording all the old data into the hidden-disk ?
>>
>> hidden disk and active disk will be made empty when starting block
>> replication.
>
> Hmm, yes - I think I need to update to your current world; in the version
> from the end of May, I get a 'error while loading state for instance 0x0 of
> device 'block''
> if I try to use migrate -d -b
> (the bdrv_write fails)
Can you give me both primary and secondary qemu's command? I think the command
line is wrong,
and disk migration fails.
>
>>>> If the user uses mirror job, we don't cancel the mirror job now.
>>>
>>> It would be good to get it to work with mirror, that seems preferred these
>>> days to the old block migration.
>>
>> In normal migration, is mirror job created and cancelled by libvirt?
>
> Yes, I think so; you should be able to turn on full logging on libvirt and
> watch the qmp commands it sends.
Supporting mirror job in my TODO list now. But I think we should focus the
basci function now.
Thanks
Wen Congyang
>
> Dave
>
> --
> Dr. David Alan Gilbert / address@hidden / Manchester, UK
> .
>
- Re: [Qemu-devel] [Qemu-block] [PATCH COLO-Block v6 07/16] Add new block driver interface to connect/disconnect the remote target, (continued)
- Re: [Qemu-devel] [Qemu-block] [PATCH COLO-Block v6 07/16] Add new block driver interface to connect/disconnect the remote target, Wen Congyang, 2015/06/19
- Re: [Qemu-devel] [Qemu-block] [PATCH COLO-Block v6 07/16] Add new block driver interface to connect/disconnect the remote target, Stefan Hajnoczi, 2015/06/22
- Re: [Qemu-devel] [Qemu-block] [PATCH COLO-Block v6 07/16] Add new block driver interface to connect/disconnect the remote target, Wen Congyang, 2015/06/22
- Re: [Qemu-devel] [Qemu-block] [PATCH COLO-Block v6 07/16] Add new block driver interface to connect/disconnect the remote target, Stefan Hajnoczi, 2015/06/23
- Re: [Qemu-devel] [Qemu-block] [PATCH COLO-Block v6 07/16] Add new block driver interface to connect/disconnect the remote target, Wen Congyang, 2015/06/23
- Re: [Qemu-devel] [Qemu-block] [PATCH COLO-Block v6 07/16] Add new block driver interface to connect/disconnect the remote target, Dr. David Alan Gilbert, 2015/06/24
- Re: [Qemu-devel] [Qemu-block] [PATCH COLO-Block v6 07/16] Add new block driver interface to connect/disconnect the remote target, Wen Congyang, 2015/06/24
- Re: [Qemu-devel] [Qemu-block] [PATCH COLO-Block v6 07/16] Add new block driver interface to connect/disconnect the remote target, Dr. David Alan Gilbert, 2015/06/26
- Re: [Qemu-devel] [Qemu-block] [PATCH COLO-Block v6 07/16] Add new block driver interface to connect/disconnect the remote target, Wen Congyang, 2015/06/28
- Re: [Qemu-devel] [Qemu-block] [PATCH COLO-Block v6 07/16] Add new block driver interface to connect/disconnect the remote target, Dr. David Alan Gilbert, 2015/06/30
- Re: [Qemu-devel] [Qemu-block] [PATCH COLO-Block v6 07/16] Add new block driver interface to connect/disconnect the remote target,
Wen Congyang <=
- Re: [Qemu-devel] [Qemu-block] [PATCH COLO-Block v6 07/16] Add new block driver interface to connect/disconnect the remote target, Wen Congyang, 2015/06/23
- Re: [Qemu-devel] [Qemu-block] [PATCH COLO-Block v6 07/16] Add new block driver interface to connect/disconnect the remote target, Wen Congyang, 2015/06/23
[Qemu-devel] [PATCH COLO-Block v6 04/16] block: Parse "backing_reference" option to reference existing BDS, Wen Congyang, 2015/06/18
[Qemu-devel] [PATCH COLO-Block v6 09/16] Introduce a new -drive option to control whether to connect to remote target, Wen Congyang, 2015/06/18
[Qemu-devel] [PATCH COLO-Block v6 08/16] NBD client: implement block driver interfaces to connect/disconnect NBD server, Wen Congyang, 2015/06/18
[Qemu-devel] [PATCH COLO-Block v6 10/16] NBD client: connect to nbd server later, Wen Congyang, 2015/06/18
[Qemu-devel] [PATCH COLO-Block v6 12/16] skip nbd_target when starting block replication, Wen Congyang, 2015/06/18
[Qemu-devel] [PATCH COLO-Block v6 11/16] Add new block driver interfaces to control block replication, Wen Congyang, 2015/06/18