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Re: [Qemu-devel] [PATCH] migration: add "return-path" capability
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From: |
Juan Quintela |
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Subject: |
Re: [Qemu-devel] [PATCH] migration: add "return-path" capability |
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Date: |
Wed, 28 Jun 2017 09:36:02 +0200 |
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User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/25.2 (gnu/linux) |
Peter Xu <address@hidden> wrote:
> When this capability is enabled, QEMU will use the return path even for
> precopy migration. This is helpful at least in one case when destination
> failed to load the image while source quited without confirmation. With
> return path, source will wait for the last response from destination,
> and if destination fails, it'll fail the migration on source, then the
> guest can be run again on the source (rather than assuming to be good,
> then the guest will be lost after source quits).
>
> It needs to be enabled explicitly on source, otherwise disabled.
>
> Signed-off-by: Peter Xu <address@hidden>
Reviewed-by: Juan Quintela <address@hidden>