Public bug reported: In our environments on deployments at reasonable scale (100 networks with 4 subnets each) with 3 Controllers and abt 50 Computes we notice high latency on subnet deletion. But even in smaller deployments we are able to see issues using rally create_and_delete_subnets tests[1]. There is a correlation with increasing load and concurrency. These tests were run on the master branch with a devstack based single node deployment(VM). Our actual deployments are on high end physical servers (Bare Metal).
I suspect that issues are around here: https://github.com/openstack/neutron/blob/master/neutron/db/db_base_plugin_v2.py#L991 I am not sure if this is a known issue and folks already have some thoughts around this. [1] http://paste.openstack.org/show/749782/ ** Affects: neutron Importance: Undecided Status: New -- You received this bug notification because you are a member of Yahoo! Engineering Team, which is subscribed to neutron. https://bugs.launchpad.net/bugs/1826480 Title: High latency on delete_subnets with increasing load and concurrency Status in neutron: New Bug description: In our environments on deployments at reasonable scale (100 networks with 4 subnets each) with 3 Controllers and abt 50 Computes we notice high latency on subnet deletion. But even in smaller deployments we are able to see issues using rally create_and_delete_subnets tests[1]. There is a correlation with increasing load and concurrency. These tests were run on the master branch with a devstack based single node deployment(VM). Our actual deployments are on high end physical servers (Bare Metal). I suspect that issues are around here: https://github.com/openstack/neutron/blob/master/neutron/db/db_base_plugin_v2.py#L991 I am not sure if this is a known issue and folks already have some thoughts around this. [1] http://paste.openstack.org/show/749782/ To manage notifications about this bug go to: https://bugs.launchpad.net/neutron/+bug/1826480/+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
