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From: | jz4 |
Subject: | Re: [Qemu-devel] [PATCH 0/3 v5] Live migration without shared storage |
Date: | Tue, 16 Mar 2010 14:57:54 -0500 |
User-agent: | Internet Messaging Program (IMP) H3 (4.2-RC3) |
[Qemu-devel] [PATCH 0/3 v5] Live migration without shared storageI tested the live migration without shared storage for the patch of the block migration. It succeeds for several times but sometimes it fails. I used the qemu-kvm-0.12.3 and the kvm 2.6.33 module on the ubuntu latest version.
In the failure case, i can see the shell on the destination site showed the correct content for the migrated VM, but it just hanged there without any response to the mouse and the keyboard. I can see it prints "migration completes" twice. Is it a bug or did I do anything wrong?
Another question is about the command line for the destination site. For memory migration, i will start the vm based on the shared image. For block migration, there is no shared image. What i did is creating an empty image with the same format (e.g. raw or qcow2) as the source migrated VM. Is it correct or it doesn't matter which format it is in the destination site?
For the memory migration, it emphasizes that the path for the VM should be the same as the source path. But for the block migration, i change the destination path to a different one and it also works. Does that mean path is not important now?
The command line must be "migrate -d -b ..". If it is "-b -d", the qemu-monitor doesn't understand. Does that intend to be designed like this or will it be modified in the future?
Thanks! -Jie
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