Public bug reported:
Hi everyone,
I'm working on upgrading OpenStack from Liberty to Mitaka. I've upgraded my
controller to mitaka. Mitaka controller will manage liberty computes and mitaka
computes. After that I do live migration VMs from liberty compute to mitaka
compute. when live migrate between two computes different version, I recognized
downtime was too high (30 ICMP packets loss with 200ms interval) than two
computes same version (5 ICMP packets loss with 200ms interval), summary:
live-migration between liberty-liberty computes: 5 ICMP packets loss with 200ms
interval
live-migration between liberty-mitaka computes: 30 ICMP packets loss with 200ms
interval
I don't know why it happened
My ENV:
1 controller mitaka
2 compute liberty
1 compute mitaka
OVS ML2 plugin with DVR
Ceph Backend Storage
Thanks
** Affects: nova
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1782119
Title:
Downtime of volume backed live migration between two compute nodes
(different version: liberty-mitaka) is too high
Status in OpenStack Compute (nova):
New
Bug description:
Hi everyone,
I'm working on upgrading OpenStack from Liberty to Mitaka. I've upgraded my
controller to mitaka. Mitaka controller will manage liberty computes and mitaka
computes. After that I do live migration VMs from liberty compute to mitaka
compute. when live migrate between two computes different version, I recognized
downtime was too high (30 ICMP packets loss with 200ms interval) than two
computes same version (5 ICMP packets loss with 200ms interval), summary:
live-migration between liberty-liberty computes: 5 ICMP packets loss with
200ms interval
live-migration between liberty-mitaka computes: 30 ICMP packets loss with
200ms interval
I don't know why it happened
My ENV:
1 controller mitaka
2 compute liberty
1 compute mitaka
OVS ML2 plugin with DVR
Ceph Backend Storage
Thanks
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