** Changed in: nova
Status: Invalid => New
--
You received this bug notification because you are a member of Yahoo!
Engineering Team, which is subscribed to OpenStack Compute (nova).
https://bugs.launchpad.net/bugs/1583145
Title:
Live migration of large ephemeral disks result in progress_timeout
Status in OpenStack Compute (nova):
New
Bug description:
Live-migration monitoring is based on the memory migration only. Which
means that if a live-migration is taking a long time to migrate a
disk, only the live_migration_progress_timeout parameter will be taken
into account and will override the live_migration_completion_timeout
parameter. In other words, because live_migration_progress_timeout is
logically smaller than live_migration_completion_timeout, the later
will never be used except in a case where the disk migration is fast
and the memory migration is slow.
Steps to reproduce:
- live-migrate an instance with lots a data on its ephemeral disk
- observe that the live-migration is aborted because of
live_migration_progress_timeout only.
A bit of log with the original values (live_migration_progress_timeout
= 150 seconds and live_migration_completion_timeout = 800 seconds):
2016-05-25 08:59:30.344 3384 DEBUG nova.virt.libvirt.driver
[req-3b2aab7c-5f43-494a-b9d2-a02a35d22fa1 c3eeb0123cf644889e157543da99ae48
b2657f1b7b86474baccf55faac526e5a] [instance:
46495844-fd23-448b-9e61-c5ffdb636155] Migration running for 145 secs, memory
100% remaining; (bytes processed=0, remaining=0, total=0)
_live_migration_monitor
/opt/stack/venv/nova-20160511T210741Z/lib/python2.7/site-packages/nova/virt/libvirt/driver.py:6422
2016-05-25 08:59:30.845 3384 WARNING nova.virt.libvirt.driver
[req-3b2aab7c-5f43-494a-b9d2-a02a35d22fa1 c3eeb0123cf644889e157543da99ae48
b2657f1b7b86474baccf55faac526e5a] [instance:
46495844-fd23-448b-9e61-c5ffdb636155] Live migration stuck for 150 sec
2016-05-25 08:59:31.590 3384 DEBUG nova.virt.libvirt.driver
[req-3b2aab7c-5f43-494a-b9d2-a02a35d22fa1 c3eeb0123cf644889e157543da99ae48
b2657f1b7b86474baccf55faac526e5a] [instance:
46495844-fd23-448b-9e61-c5ffdb636155] Live migration monitoring is all done
_live_migration
/opt/stack/venv/nova-20160511T210741Z/lib/python2.7/site-packages/nova/virt/libvirt/driver.py:6526
2016-05-25 08:59:31.818 3384 ERROR nova.virt.libvirt.driver
[req-3b2aab7c-5f43-494a-b9d2-a02a35d22fa1 c3eeb0123cf644889e157543da99ae48
b2657f1b7b86474baccf55faac526e5a] [instance:
46495844-fd23-448b-9e61-c5ffdb636155] Live Migration failure: operation
aborted: migration out: canceled by client
To manage notifications about this bug go to:
https://bugs.launchpad.net/nova/+bug/1583145/+subscriptions
--
Mailing list: https://launchpad.net/~yahoo-eng-team
Post to : [email protected]
Unsubscribe : https://launchpad.net/~yahoo-eng-team
More help : https://help.launchpad.net/ListHelp
