On 12/02/2015 09:00 AM, Wen Congyang wrote: > On 12/01/2015 06:40 PM, Dr. David Alan Gilbert wrote: >> * Wen Congyang (we...@cn.fujitsu.com) wrote: >>> 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/2015-11/msg04949.html >>> 2. http://lists.nongnu.org/archive/html/qemu-devel/2015-11/msg06043.html >>> >>> You can get the patch here: >>> https://github.com/coloft/qemu/tree/wency/block-replication-v12 >>> >>> You can get the patch with framework here: >>> https://github.com/coloft/qemu/tree/wency/colo_framework_v11.2 >> >> Neither of these links work for me, and I see that only messages 0..7 in the >> series hit the list. > > I forgot to push it to github... > And I also received the messages 0..7, and I don't know what's wrong...
The reason is that: git send-email has a bug: http://permalink.gmane.org/gmane.comp.version-control.git/274569 Thanks Wen Congyang > > I will push it to github, and resend them. > > Thanks > Wen Congyang > >> >> Dave >> >>> >>> TODO: >>> 1. Continuous block replication. It will be started after basic functions >>> are accepted. >>> >>> Changs Log: >>> 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 (10): >>> 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 >>> 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 | 145 ++++++++++++ >>> block/Makefile.objs | 3 +- >>> block/backup.c | 14 ++ >>> block/quorum.c | 78 +++++++ >>> block/replication.c | 549 >>> +++++++++++++++++++++++++++++++++++++++++++++ >>> blockjob.c | 11 + >>> docs/block-replication.txt | 227 +++++++++++++++++++ >>> include/block/block.h | 9 + >>> include/block/block_int.h | 15 ++ >>> include/block/blockjob.h | 12 + >>> qapi/block-core.json | 34 ++- >>> 11 files changed, 1093 insertions(+), 4 deletions(-) >>> create mode 100644 block/replication.c >>> create mode 100644 docs/block-replication.txt >>> >>> -- >>> 2.5.0 >>> >>> >>> >> -- >> Dr. David Alan Gilbert / dgilb...@redhat.com / Manchester, UK >> >> >> . >> > > > > > . >
