Hello,
Thank you very much, the suggested change in vm.sh script did
the trick!
Best regards,
Daniel Zavodsky
-----Original Message-----
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTECTED] On Behalf Of Jan Mark Holzer
Sent: Thursday, December 06, 2007 12:23 PM
To: Red Hat Enterprise Linux 5 (Tikanga) discussion mailing-list
Subject: Re: [rhelv5-list] Live migration of Xen domains in a cluster
Hi,
you might be running into the case where the cluster script in
/usr/share/cluster/vm.sh
is not using the '-l' option for the "xm migrate" command .
If you edit the above script and change line 382 to add the '-l'
flag to
the "xm migrate" command it will then use live migration .
Remember to make the change on all nodes in your cluster :)
Hth,
- Jan
Zavodsky, Daniel (GE Money) wrote:
> Greetings,
> I am using RHEL 5 update 1 and I am having trouble getting "real"
> live migration to work in a cluster environment.
> When I do this on member2:
>
> # clusvcadm -M guest1 -m member1
>
> The guest1 is first suspended on member2, its memory copied over to
> member1 and then started on member1. With several gigabytes of RAM in
> the guest, this amounts to an outage of more than one minute (on
> gigabit ethernet), losing network connections etc..
>
>
> When I do this on member2:
>
> # xm migrate guest1 member1 -l
>
> The guest1 continues running while its memory is being copied over to
> member1, there is only a brief pause at the end of the copying
> process. It looks like as if clusvcadm did migration without the "-l"
> parameter...
>
> Is this behaviour configurable or is this not supported by clusvcadm
> in RHEL 5 update 1 yet? How do you solve this issue in your cluster?
> Thank you very much for any advice.
>
>
> Best regards,
> Daniel Zavodsky
> ----------------------------------------------------------------------
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