From: Paolo Bonzini <pbonzini@redhat.com>
To: quintela@redhat.com
Cc: stefanha@redhat.com, owasserm@redhat.com,
Jules Wang <junqing.wang@cs2c.com.cn>,
qemu-devel@nongnu.org
Subject: Re: [Qemu-devel] [PATCH RFC 2/4] Curling: cmdline interface
Date: Tue, 10 Sep 2013 16:38:21 +0200 [thread overview]
Message-ID: <522F2EDD.2070005@redhat.com> (raw)
In-Reply-To: <87mwnkd44e.fsf@elfo.elfo>
Il 10/09/2013 18:37, Juan Quintela ha scritto:
>> I think for the outgoing side it should just be "migrate -f tcp:foo:9999".
>>
>> On the incoming side, perhaps you could have a different ID instead of
>> QEMU_VM_FILE_MAGIC, that triggers fault-tolerance mode automatically?
>> Then again it would be simply "-incoming tcp:foo:9999".
>
> Then how can you distingish between faultolerance and simple migration?
> You need to diferentiate on both sides.
>
> - outgoing side: you need to continue running after sending the whole
> state
> - incoming side: after receivinga lot, you apply it, and have to wait
> for the next one.
>
> It is a different thing to do, we need to tell qemu somehow.
You look at the first 4 bytes in the stream and distinguish the two cases.
Paolo
next prev parent reply other threads:[~2013-09-10 14:38 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-09-10 3:43 [Qemu-devel] [PATCH RFC 0/4] Curling: KVM Fault Tolerance Jules Wang
2013-09-10 3:43 ` [Qemu-devel] [PATCH RFC 1/4] Curling: add doc Jules Wang
2013-09-10 3:43 ` [Qemu-devel] [PATCH RFC 2/4] Curling: cmdline interface Jules Wang
2013-09-10 13:57 ` Juan Quintela
2013-09-10 13:03 ` Paolo Bonzini
2013-09-10 16:37 ` Juan Quintela
2013-09-10 14:38 ` Paolo Bonzini [this message]
2013-09-10 15:21 ` Juan Quintela
2013-09-10 15:22 ` Juan Quintela
2013-09-11 2:51 ` junqing.wang
2013-09-10 3:43 ` [Qemu-devel] [PATCH RFC 3/4] Curling: the sender Jules Wang
2013-09-10 14:05 ` Juan Quintela
2013-09-11 7:31 ` junqing.wang
2013-09-10 3:43 ` [Qemu-devel] [PATCH RFC 4/4] Curling: the receiver Jules Wang
2013-09-10 14:19 ` Juan Quintela
2013-09-11 8:25 ` junqing.wang
2013-09-10 12:27 ` [Qemu-devel] [PATCH RFC 0/4] Curling: KVM Fault Tolerance Orit Wasserman
2013-09-11 1:54 ` junqing.wang
2013-09-12 7:37 ` Orit Wasserman
2013-09-12 8:17 ` junqing.wang
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