OpenStack - High ovs-vswitchd CPU usage when VRRP over VXLAN tunnel causing qrouter fail-over
Issue
- High CPU utilization by
ksoftirqd/N
in nodes runningl3_agent
that hosts the qrouter - Run out of unique tuple
src_address:src_port
used for the SNAT. - OpenvSwitch revalidator threads failing and qrouter involuntary failover
Environment
- Red Hat OpemStack Platform (RHOSP) 13
- Red Hat Enterprise Linux 7
- kernel <3.10.0-971
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