Public bug reported:
We have 250 instances on a compute node and the resource tracker
periodic task is taking very long:
2018-06-17 10:30:56.194 1658 DEBUG oslo_concurrency.lockutils [req-
fb2573f9-3862-45db-b546-7a00fdd9a871 - - - - -] Lock "compute_resources"
released by "nova.compute.resource_tracker._update_available_resource"
:: held 10.666s inner /usr/lib/python2.7/dist-
packages/oslo_concurrency/lockutils.py:288
This is due to the deepcopy. This copies the structure N times per
iteration, once for each instance. This is very costly.
** Affects: nova
Importance: Undecided
Assignee: Gary Kotton (garyk)
Status: In Progress
--
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/1777422
Title:
Resource tracker periodic task taking a very long time
Status in OpenStack Compute (nova):
In Progress
Bug description:
We have 250 instances on a compute node and the resource tracker
periodic task is taking very long:
2018-06-17 10:30:56.194 1658 DEBUG oslo_concurrency.lockutils [req-
fb2573f9-3862-45db-b546-7a00fdd9a871 - - - - -] Lock
"compute_resources" released by
"nova.compute.resource_tracker._update_available_resource" :: held
10.666s inner /usr/lib/python2.7/dist-
packages/oslo_concurrency/lockutils.py:288
This is due to the deepcopy. This copies the structure N times per
iteration, once for each instance. This is very costly.
To manage notifications about this bug go to:
https://bugs.launchpad.net/nova/+bug/1777422/+subscriptions
--
Mailing list: https://launchpad.net/~yahoo-eng-team
Post to : yahoo-eng-team@lists.launchpad.net
Unsubscribe : https://launchpad.net/~yahoo-eng-team
More help : https://help.launchpad.net/ListHelp
