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Message #60338
[Bug 1648206] Re: sriov agent report_state is slow
Added Ubuntu Cloud Archive to get this fix ported into the current
packages - 8.3.0-0ubuntu1.1 doesn't have this patch.
** Also affects: cloud-archive
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1648206
Title:
sriov agent report_state is slow
Status in Ubuntu Cloud Archive:
New
Status in neutron:
Fix Released
Bug description:
On a system with lots of VFs and PFs we get these logs:
WARNING oslo.service.loopingcall [-] Function 'neutron.plugins.ml2.drivers.mech_sriov.agent.sriov_nic_agent.SriovNicSwitchAgent._report_state' run outlasted interval by 29.67 sec
WARNING oslo.service.loopingcall [-] Function 'neutron.plugins.ml2.drivers.mech_sriov.agent.sriov_nic_agent.SriovNicSwitchAgent._report_state' run outlasted interval by 45.43 sec
WARNING oslo.service.loopingcall [-] Function 'neutron.plugins.ml2.drivers.mech_sriov.agent.sriov_nic_agent.SriovNicSwitchAgent._report_state' run outlasted interval by 47.64 sec
WARNING oslo.service.loopingcall [-] Function 'neutron.plugins.ml2.drivers.mech_sriov.agent.sriov_nic_agent.SriovNicSwitchAgent._report_state' run outlasted interval by 23.89 sec
WARNING oslo.service.loopingcall [-] Function 'neutron.plugins.ml2.drivers.mech_sriov.agent.sriov_nic_agent.SriovNicSwitchAgent._report_state' run outlasted interval by 30.20 sec
Depending on the agent_down_time configuration, this can cause the Neutron server to think the agent has died.
This appears to be caused by blocking on the eswitch manager every time to get a device count to include in the state report.
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References