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Re: [Qemu-devel] [PATCH v11 00/12] Block replication for continuous chec
From: |
Wen Congyang |
Subject: |
Re: [Qemu-devel] [PATCH v11 00/12] Block replication for continuous checkpoints |
Date: |
Thu, 12 Nov 2015 17:03:19 +0800 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:38.0) Gecko/20100101 Thunderbird/38.3.0 |
ping...
On 11/03/2015 06:58 PM, Wen Congyang wrote:
> You can the detailed information about block replication from here:
> http://wiki.qemu.org/Features/BlockReplication
>
> Usage:
> Please refer to docs/block-replication.txt
>
> This patch series is based on the following patch series:
> 1. http://lists.nongnu.org/archive/html/qemu-devel/2015-10/msg03860.html
> 2. http://lists.nongnu.org/archive/html/qemu-devel/2015-10/msg06124.html
>
> You can get the patch here:
> https://github.com/coloft/qemu/tree/wency/block-replication-v11
>
> The newest framework will be sent later.
>
> TODO:
> 1. Continuous block replication. It will be started after basic functions
> are accepted.
>
> Changs Log:
> V11:
> 1. Reopen the backing file when starting blcok replication if it is not
> opened in R/W mode
> 2. Unblock BLOCK_OP_TYPE_BACKUP_SOURCE and BLOCK_OP_TYPE_BACKUP_TARGET
> when opening backing file
> 3. Block the top BDS so there is only one block job for the top BDS and
> its backing chain.
> V10:
> 1. Use blockdev-remove-medium and blockdev-insert-medium to replace backing
> reference.
> 2. Address the comments from Eric Blake
> V9:
> 1. Update the error messages
> 2. Rebase to the newest qemu
> 3. Split child add/delete support. These patches are sent in another patchset.
> V8:
> 1. Address Alberto Garcia's comments
> V7:
> 1. Implement adding/removing quorum child. Remove the option non-connect.
> 2. Simplify the backing refrence option according to Stefan Hajnoczi's
> suggestion
> V6:
> 1. Rebase to the newest qemu.
> V5:
> 1. Address the comments from Gong Lei
> 2. Speed the failover up. The secondary vm can take over very quickly even
> if there are too many I/O requests.
> V4:
> 1. Introduce a new driver replication to avoid touch nbd and qcow2.
> V3:
> 1: use error_setg() instead of error_set()
> 2. Add a new block job API
> 3. Active disk, hidden disk and nbd target uses the same AioContext
> 4. Add a testcase to test new hbitmap API
> V2:
> 1. Redesign the secondary qemu(use image-fleecing)
> 2. Use Error objects to return error message
> 3. Address the comments from Max Reitz and Eric Blake
>
> Wen Congyang (12):
> unblock backup operations in backing file
> Store parent BDS in BdrvChild
> allow writing to the backing file
> Backup: clear all bitmap when doing block checkpoint
> Allow creating backup jobs when opening BDS
> block: make bdrv_put_ref_bh_schedule() as a public API
> docs: block replication's description
> Add new block driver interfaces to control block replication
> quorum: implement block driver interfaces for block replication
> Implement new driver for block replication
> support replication driver in blockdev-add
> Add a new API to start/stop replication, do checkpoint to all BDSes
>
> block.c | 211 ++++++++++++++++-
> block/Makefile.objs | 3 +-
> block/backup.c | 14 ++
> block/quorum.c | 78 +++++++
> block/replication.c | 550
> +++++++++++++++++++++++++++++++++++++++++++++
> blockdev.c | 37 +--
> blockjob.c | 11 +
> docs/block-replication.txt | 251 +++++++++++++++++++++
> include/block/block.h | 10 +
> include/block/block_int.h | 15 ++
> include/block/blockjob.h | 12 +
> qapi/block-core.json | 34 ++-
> 12 files changed, 1190 insertions(+), 36 deletions(-)
> create mode 100644 block/replication.c
> create mode 100644 docs/block-replication.txt
>
- [Qemu-devel] [PATCH v11 02/12] Store parent BDS in BdrvChild, (continued)
- [Qemu-devel] [PATCH v11 02/12] Store parent BDS in BdrvChild, Wen Congyang, 2015/11/03
- [Qemu-devel] [PATCH v11 08/12] Add new block driver interfaces to control block replication, Wen Congyang, 2015/11/03
- [Qemu-devel] [PATCH v11 07/12] docs: block replication's description, Wen Congyang, 2015/11/03
- [Qemu-devel] [PATCH v11 06/12] block: make bdrv_put_ref_bh_schedule() as a public API, Wen Congyang, 2015/11/03
- [Qemu-devel] [PATCH v11 05/12] Allow creating backup jobs when opening BDS, Wen Congyang, 2015/11/03
- [Qemu-devel] [PATCH v11 12/12] Add a new API to start/stop replication, do checkpoint to all BDSes, Wen Congyang, 2015/11/03
- [Qemu-devel] [PATCH v11 10/12] Implement new driver for block replication, Wen Congyang, 2015/11/03
- [Qemu-devel] [PATCH v11 09/12] quorum: implement block driver interfaces for block replication, Wen Congyang, 2015/11/03
- [Qemu-devel] [PATCH v11 04/12] Backup: clear all bitmap when doing block checkpoint, Wen Congyang, 2015/11/03
- [Qemu-devel] [PATCH v11 11/12] support replication driver in blockdev-add, Wen Congyang, 2015/11/03
- Re: [Qemu-devel] [PATCH v11 00/12] Block replication for continuous checkpoints,
Wen Congyang <=