Symptom
It has been observed that the ISR1100-4G and 6G boxes shows 100% CPU.
Identified that snmp is configured and the major portion is taken by confd.
vedge# show system status | i CPU\ states | nomore
CPU states: 88.19% user, 11.81% system, 0.00% idle
vedge#
vedge:~$ top
top - 04:17:04 up 11 days, 6:00, 1 user, load average: 5.08, 4.47, 4.39
Tasks: 222 total, 4 running, 218 sleeping, 0 stopped, 0 zombie
%Cpu(s): 58.3 us, 41.7 sy, 0.0 ni, 0.0 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
MiB Mem : 3670.6 total, 1768.6 free, 976.4 used, 925.7 buff/cache
MiB Swap: 0.0 total, 0.0 free, 0.0 used. 2161.3 avail Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
5249 root 20 0 65.0g 277556 266772 R 288.2 7.4 48592:20 fp-um-1
5043 root 20 0 1910840 138416 7944 R 70.6 3.7 4255:14 confd <<<<<<<<<<<<
1046 root 20 0 36144 8400 6548 S 17.6 0.2 793:35.51 snmpd <<<<<<<<<<<<
11416 admin 20 0 13548 2360 1848 R 5.9 0.1 0:00.01 top
Conditions
SNMP needs to be configured on box and server polling the routers for specific OID present in Views.
After polling certain OIDs, the router CPU spikes and remains there until snmp process is restarted.
