Openstack Agent involving openvswitch do not release memory

Solution Verified - Updated -

Issue

  • On a RHOSP controller node, the memory usage of several neutron agent keep increasing:
    • neutron-openvswitch-agent
    • neutron-dhcp-agent
    • neutron-lbaas-agent
  • The memory is not released until the agent is restarted.

Environment

  • Red Hat OpenStack Plateform 13 (RHOSP)
  • Red Hat OpenStack Plateform 14 (RHOSP)
  • Openvswitch 2.9.0-83 up until 2.9.0-96

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