On 07/09/2015 05:16 PM, Dr. David Alan Gilbert wrote: > * Wen Congyang (we...@cn.fujitsu.com) wrote: > >>>> I have sent the v8. But the usage is not changed. You can setup the >>>> environment according to the wiki. >>>> When we open nbd client, we need to connect to the nbd server. So I >>>> introduce a new command child_add to add NBD client >>>> as a quorum child when the nbd server is ready. >>>> >>>> The nbd server is ready after you run the following command: >>>> nbd_server_start 0:6262 # the secondary qemu will listen to host:port >>>> nbd_server_add -w mc1 # the NBD server will know this disk is used as >>>> NBD server. The export name is its id wc1. >>>> # -w means we allow to write to this disk. >>>> >>>> Then you can run the following command in the primary qemu: >>>> child_add disk1 >>>> child.driver=replication,child.mode=primary,child.file.host=127.0.0.1,child.file.port=6262,child.file.export=mc1,child.file.driver=nbd,child.ignore-errors=on >>>> >>>> After this monitor command, nbd client has connected to the nbd server. >>> >>> Ah! The 'child.file.export=mc1' wasn't there previously; I see Yang added >>> that to the wiki yesterday; >>> that probably explains the problem that we've been having. >> >> Sorry for this mistake. > > OK, so this is working for me (with the 7.2 world). What isn't working in > this setup is migrate -b, I get: > > (qemu) Receiving block device images > Error unknown block device disk1 > qemu-system-x86_64: error while loading state section id 1(block) > qemu-system-x86_64: load of migration failed: Invalid argument > > Can you explain the id=disk1 on the master side?
Can you give me the command line? I think the id in primary and secondary qemu is not same. Thanks Wen Congyang > > Dave > >> >> Thanks >> Wen Congyang >> >>> >>> Dave >>> >>>> >>>> Thanks >>>> Wen Congyang >>>> >>>>> >>>>> - Michael >>>>> >>>>> . >>>>> >>>> >>>> >>> -- >>> Dr. David Alan Gilbert / dgilb...@redhat.com / Manchester, UK >>> . >>> >> > -- > Dr. David Alan Gilbert / dgilb...@redhat.com / Manchester, UK > . >
