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* [Qemu-devel] [PATCH v14 0/8] Block replication for continuous checkpoints
@ 2016-01-13  9:18 Changlong Xie
  2016-01-13  9:18 ` [Qemu-devel] [PATCH v14 1/8] unblock backup operations in backing file Changlong Xie
                   ` (9 more replies)
  0 siblings, 10 replies; 34+ messages in thread
From: Changlong Xie @ 2016-01-13  9:18 UTC (permalink / raw)
  To: qemu devel, Fam Zheng, Max Reitz, Paolo Bonzini, Kevin Wolf,
	Stefan Hajnoczi
  Cc: fnstml-hwcolo

Block replication is a very important feature which is used for
continuous checkpoints(for example: COLO).

You can get 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/2015-12/msg04570.html

You can get the patch here:
https://github.com/Pating/qemu/tree/changlox/block-replication-v14

You can get the patch with framework here:
https://github.com/Pating/qemu/tree/changlox/colo_framework_v13

TODO:
1. Continuous block replication. It will be started after basic functions
   are accepted.

Changs Log:
V14:
1. Implement auto complete active commit
2. Implement active commit block job for replication.c
3. Address the comments from Stefan, add replication-specific API and data
   structure, also remove old block layer APIs
V13:
1. Rebase to the newest codes
2. Remove redundant marcos and semicolon in replication.c 
3. Fix typos in block-replication.txt
V12:
1. Rebase to the newest codes
2. Use backing reference to replcace 'allow-write-backing-file'
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 (8):
  unblock backup operations in backing file
  Store parent BDS in BdrvChild
  Backup: clear all bitmap when doing block checkpoint
  Allow creating backup jobs when opening BDS
  docs: block replication's description
  auto complete active commit
  Implement new driver for block replication
  support replication driver in blockdev-add

 block.c                          |  19 ++
 block/Makefile.objs              |   3 +-
 block/backup.c                   |  14 +
 block/mirror.c                   |  13 +-
 block/replication-comm.c         |  66 +++++
 block/replication.c              | 590 +++++++++++++++++++++++++++++++++++++++
 blockdev.c                       |   2 +-
 blockjob.c                       |  11 +
 docs/block-replication.txt       | 229 +++++++++++++++
 include/block/block_int.h        |   4 +-
 include/block/blockjob.h         |  12 +
 include/block/replication-comm.h |  50 ++++
 qapi/block-core.json             |  33 ++-
 qemu-img.c                       |   2 +-
 14 files changed, 1038 insertions(+), 10 deletions(-)
 create mode 100644 block/replication-comm.c
 create mode 100644 block/replication.c
 create mode 100644 docs/block-replication.txt
 create mode 100644 include/block/replication-comm.h

-- 
1.9.3

^ permalink raw reply	[flat|nested] 34+ messages in thread

end of thread, other threads:[~2016-02-03 11:30 UTC | newest]

Thread overview: 34+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2016-01-13  9:18 [Qemu-devel] [PATCH v14 0/8] Block replication for continuous checkpoints Changlong Xie
2016-01-13  9:18 ` [Qemu-devel] [PATCH v14 1/8] unblock backup operations in backing file Changlong Xie
2016-01-13  9:18 ` [Qemu-devel] [PATCH v14 2/8] Store parent BDS in BdrvChild Changlong Xie
2016-01-13  9:18 ` [Qemu-devel] [PATCH v14 3/8] Backup: clear all bitmap when doing block checkpoint Changlong Xie
2016-01-27 16:05   ` Stefan Hajnoczi
2016-01-28  2:22     ` Changlong Xie
2016-01-13  9:18 ` [Qemu-devel] [PATCH v14 4/8] Allow creating backup jobs when opening BDS Changlong Xie
2016-01-27 14:04   ` Stefan Hajnoczi
2016-01-28  2:22     ` Changlong Xie
2016-01-13  9:18 ` [Qemu-devel] [PATCH v14 5/8] docs: block replication's description Changlong Xie
2016-02-02 15:20   ` Eric Blake
2016-02-03  3:18     ` Changlong Xie
2016-02-03  3:35       ` Eric Blake
2016-02-03  3:40         ` Wen Congyang
2016-01-13  9:18 ` [Qemu-devel] [PATCH v14 6/8] auto complete active commit Changlong Xie
2016-01-13  9:18 ` [Qemu-devel] [PATCH v14 7/8] Implement new driver for block replication Changlong Xie
2016-01-20  0:04   ` Eric Blake
2016-01-20  7:45     ` Changlong Xie
2016-01-27 14:46   ` Stefan Hajnoczi
2016-01-28  1:13     ` Wen Congyang
2016-01-28 15:15       ` Stefan Hajnoczi
2016-01-29  3:13         ` Changlong Xie
2016-01-29 15:46           ` Stefan Hajnoczi
2016-02-01  1:13             ` Wen Congyang
2016-02-02 14:34               ` Stefan Hajnoczi
2016-02-03  1:29                 ` Wen Congyang
2016-02-03  9:32                   ` Stefan Hajnoczi
2016-02-03  9:55                     ` Wen Congyang
2016-02-03 11:25                       ` Hailiang Zhang
2016-01-13  9:18 ` [Qemu-devel] [PATCH v14 8/8] support replication driver in blockdev-add Changlong Xie
2016-01-14  1:12 ` [Qemu-devel] [PATCH v14 0/8] Block replication for continuous checkpoints Changlong Xie
2016-01-19  1:27   ` Hailiang Zhang
2016-01-24 13:34 ` Wen Congyang
2016-01-26 16:04   ` Stefan Hajnoczi

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