Servers Hang at 100% CPU On Migration

oVirt Node - 3.5 - 0.999.201504280931.el7.centos When migrating servers using an iSCSI storage domain, about 75% of the time they will become unresponsive and stuck at 100% CPU after migration. This does not happen with direct LUNs, however. What causes this? How do I stop it from happening? Thanks -- This email was Virus checked by UTM 9. For issues please contact the Windows Systems Admin.

I forgot to mention that the vm have to be forcefully restarted when this happens. On 08/19/2015 02:15 PM, Chris Jones - BookIt.com Systems Administrator wrote:
oVirt Node - 3.5 - 0.999.201504280931.el7.centos
When migrating servers using an iSCSI storage domain, about 75% of the time they will become unresponsive and stuck at 100% CPU after migration. This does not happen with direct LUNs, however.
What causes this? How do I stop it from happening?
Thanks
-- This email was Virus checked by UTM 9. For issues please contact the Windows Systems Admin.

We had this exact issue on that same build. Upgrading to oVirt Node - 3.5 - 0.999.201507082312.el7.centos made the issue disappear for us. It was one of the 3.5.3 builds. Hope this helps. -Patrick
On Aug 19, 2015, at 1:15 PM, Chris Jones - BookIt.com Systems Administrator <chris.jones@bookit.com> wrote:
oVirt Node - 3.5 - 0.999.201504280931.el7.centos
When migrating servers using an iSCSI storage domain, about 75% of the time they will become unresponsive and stuck at 100% CPU after migration. This does not happen with direct LUNs, however.
What causes this? How do I stop it from happening?
Thanks
-- This email was Virus checked by UTM 9. For issues please contact the Windows Systems Admin. _______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users

I'll give that a try. Thanks. On 08/23/2015 10:04 PM, Patrick Russell wrote:
We had this exact issue on that same build. Upgrading to oVirt Node - 3.5 - 0.999.201507082312.el7.centos made the issue disappear for us. It was one of the 3.5.3 builds.
Hope this helps.
-Patrick
On Aug 19, 2015, at 1:15 PM, Chris Jones - BookIt.com Systems Administrator <chris.jones@bookit.com> wrote:
oVirt Node - 3.5 - 0.999.201504280931.el7.centos
When migrating servers using an iSCSI storage domain, about 75% of the time they will become unresponsive and stuck at 100% CPU after migration. This does not happen with direct LUNs, however.
What causes this? How do I stop it from happening?
Thanks
-- This email was Virus checked by UTM 9. For issues please contact the Windows Systems Admin. _______________________________________________ Users mailing list Users@ovirt.org http://lists.ovirt.org/mailman/listinfo/users
participants (3)
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Chris Jones - BookIt.com Systems Administrator
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Patrick Russell
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Николаев Алексей