On 07/17/2012 05:56 PM, Sam Su wrote:
> Hi,
>
> Just This always happens in Essex release. After I take a snapshot of my VM (
> I
> tried Ubuntu 12.04 or CentOS 5.8), VM can't ping its self floating IP; before
> I
> take a snapshot though, VM can ping its self floating IP.
>
> This looks closely related to https://bugs.launchpad.net/nova/+bug/933640, but
> still a little different. In 933640, it sounds like VM can't ping its self
> floating IP regardless whether we take a snapshot or not.
>
> Any suggestion to make an easy fix? And what is the root cause of the problem?
It might be because there's a missing _enable_hairpin() call in the reboot()
function. Try something like this...
nova/virt/libvirt/connection.py, _hard_reboot():
self._create_new_domain(xml)
+ self._enable_hairpin(instance)
self.firewall_driver.apply_instance_filter(instance, network_info)
At least that's what I remember doing myself recently when testing after a
reboot, don't know about snapshot.
Folsom has changed enough that something different would need to be done there.
-Brian
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