Symptom
vEdge1000 just upgraded to 20.6.5 is reporting high CPU utilization up to 100% every 30 minutes.
Feb 9 16:04:07 vEdge SYSMGR[669]: %Viptela-USPIA-P-SDW002-SYSMGR-2-CRIT-200069: System cpu usage is above 90% (critically high)
Feb 9 16:04:08 vEdge SYSMGR: USER PID %CPU %MEM VSZ RSS TTY STAT START TIME COMMAND
Feb 9 16:04:08 vEdge SYSMGR: root 22045 30.0 0.1 8476 4168 ? Rs 16:04 0:00 [vconfd_netconf_]
Feb 9 16:04:08vEdge SYSMGR: root 22049 29.0 0.1 8476 4092 ? Rs 16:04 0:00 [vconfd_netconf_]
Feb 9 16:04:08 vEdge SYSMGR: root 21996 10.7 0.1 8476 4160 ? Ss 16:04 0:00 [vconfd_netconf_]
Feb 9 16:04:08 vEdge SYSMGR: root 21997 10.7 0.1 8476 4300 ? Ss 16:04 0:00 [vconfd_netconf_]
Feb 9 16:04:08 vEdge SYSMGR: root 21986 8.2 0.2 9692 7080 ? Ss 16:04 0:00 sshd: vmanage-admin [priv]
Feb 9 16:04:08 vEdge SYSMGR: root 21987 8.2 0.2 9692 7084 ? Ss 16:04 0:00 sshd: vmanage-admin [priv]
Feb 9 16:04:08 vEdge root 21951 4.7 0.2 9692 7116 ? Ss 16:04 0:00 sshd: vmanage-admin [priv]
Feb 9 16:04:08 vEdge[669]: vconfd_send_snmp_v3_msg[215]: n_target_names(0) <= 0, nothing to send
Feb 9 16:04:08 vEdge SYSMGR[669]: %Viptela-vEdge-sysmgrd-6-INFO-1400002: Notification: cpu-usage severity-level:critical host-name:"vEdge" system-ip:1.1.1.39 warning:"System cpu usage is above 90% (critically high)" cpu-user-percentage:"10.95" cpu-system-percentage:"88.56" cpu-idle-percentage:"0.50"
Conditions
Router has DPI enabled, but so far, it hasn't been determined this a trigger condition.
Due to the periodicity, it seems to be a pre schedule task coming from vManage since two mainly processes have been detected spiking the CPU:
+sshd
+vconfd
In some occasions FTMd also have seen as spiker.
Workaround
None at the moment.
Further Problem Description
/var/log/messages, /var/log/vsyslog and /var/log/vsyslog can provide more information on the list of processes requesting CPU cycles as well as the average CPU utilization in 1min,5min sampling.
