I also notice a very high CPU load in the hosts after running /etc/rc.local:
top - 11:00:15 up 6 min, 1 user, load average: 9.88, 4.09, 1.62 Tasks: 369 total, 9 running, 354 sleeping, 0 stopped, 6 zombie %Cpu(s): 0.1 us, 5.7 sy, 0.0 ni, 94.2 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st KiB Mem : 13188960+total, 13057571+free, 746472 used, 567416 buff/cache KiB Swap: 0 total, 0 free, 0 used. 13023952+avail Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND 884 root 20 0 52032 21652 17148 R 100.0 0.0 2:06.06 systemd-journal 2235 root 20 0 0 0 0 S 25.9 0.0 0:29.72 kworker/1:2 270 root 20 0 0 0 0 S 24.3 0.0 0:28.07 kworker/17:1 272 root 20 0 0 0 0 R 23.9 0.0 0:27.08 kworker/4:1 273 root 20 0 0 0 0 S 23.9 0.0 0:28.75 kworker/5:1 267 root 20 0 0 0 0 S 23.3 0.0 0:27.92 kworker/3:1 45 root 20 0 0 0 0 S 22.9 0.0 0:27.52 kworker/7:0 235 root 20 0 0 0 0 S 22.3 0.0 0:25.20 kworker/0:2 266 root 20 0 0 0 0 S 22.3 0.0 0:26.04 kworker/2:1 274 root 20 0 0 0 0 S 22.3 0.0 0:26.84 kworker/21:1 260 root 20 0 0 0 0 S 21.6 0.0 0:26.14 kworker/6:1 276 root 20 0 0 0 0 S 21.3 0.0 0:23.96 kworker/20:1 314 root 20 0 0 0 0 S 21.3 0.0 0:25.15 kworker/19:1 316 root 20 0 0 0 0 S 20.6 0.0 0:24.92 kworker/23:1 315 root 20 0 0 0 0 S 19.9 0.0 0:22.49 kworker/16:1 275 root 20 0 0 0 0 S 19.6 0.0 0:22.25 kworker/18:1 326 root 20 0 0 0 0 S 19.3 0.0 0:22.42 kworker/22:1 233 root 20 0 0 0 0 S 16.9 0.0 0:17.46 kworker/12:1 183 root 20 0 0 0 0 S 14.6 0.0 0:16.10 kworker/13:1 1499 root 20 0 0 0 0 S 14.3 0.0 0:16.48 kworker/14:2 208 root 20 0 0 0 0 S 14.0 0.0 0:16.64 kworker/11:1 271 root 20 0 0 0 0 S 14.0 0.0 0:16.30 kworker/15:1 320 root 20 0 0 0 0 S 13.6 0.0 0:14.60 kworker/28:1 269 root 20 0 0 0 0 S 13.3 0.0 0:15.68 kworker/10:1 268 root 20 0 0 0 0 S 12.3 0.0 0:14.36 kworker/9:1 280 root 20 0 0 0 0 S 11.0 0.0 0:13.05 kworker/25:1 281 root 20 0 0 0 0 S 11.0 0.0 0:12.36 kworker/31:1 184 root 20 0 0 0 0 S 10.3 0.0 0:30.89 kworker/29:1 278 root 20 0 0 0 0 S 10.3 0.0 0:12.57 kworker/30:1 279 root 20 0 0 0 0 S 9.3 0.0 0:12.26 kworker/27:1 277 root 20 0 0 0 0 S 8.0 0.0 0:09.98 kworker/26:1 282 root 20 0 0 0 0 S 7.6 0.0 0:09.02 kworker/24:1 8 root 20 0 0 0 0 S 1.3 0.0 0:01.80 rcu_sched ....
I also notice a very high CPU load in the hosts after running /etc/rc.local:
top - 11:00:15 up 6 min, 1 user, load average: 9.88, 4.09, 1.62
Tasks: 369 total, 9 running, 354 sleeping, 0 stopped, 6 zombie
%Cpu(s): 0.1 us, 5.7 sy, 0.0 ni, 94.2 id, 0.0 wa, 0.0 hi, 0.0 si, 0.0 st
KiB Mem : 13188960+total, 13057571+free, 746472 used, 567416 buff/cache
KiB Swap: 0 total, 0 free, 0 used. 13023952+avail Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
884 root 20 0 52032 21652 17148 R 100.0 0.0 2:06.06 systemd-journal
2235 root 20 0 0 0 0 S 25.9 0.0 0:29.72 kworker/1:2
270 root 20 0 0 0 0 S 24.3 0.0 0:28.07 kworker/17:1
272 root 20 0 0 0 0 R 23.9 0.0 0:27.08 kworker/4:1
273 root 20 0 0 0 0 S 23.9 0.0 0:28.75 kworker/5:1
267 root 20 0 0 0 0 S 23.3 0.0 0:27.92 kworker/3:1
45 root 20 0 0 0 0 S 22.9 0.0 0:27.52 kworker/7:0
235 root 20 0 0 0 0 S 22.3 0.0 0:25.20 kworker/0:2
266 root 20 0 0 0 0 S 22.3 0.0 0:26.04 kworker/2:1
274 root 20 0 0 0 0 S 22.3 0.0 0:26.84 kworker/21:1
260 root 20 0 0 0 0 S 21.6 0.0 0:26.14 kworker/6:1
276 root 20 0 0 0 0 S 21.3 0.0 0:23.96 kworker/20:1
314 root 20 0 0 0 0 S 21.3 0.0 0:25.15 kworker/19:1
316 root 20 0 0 0 0 S 20.6 0.0 0:24.92 kworker/23:1
315 root 20 0 0 0 0 S 19.9 0.0 0:22.49 kworker/16:1
275 root 20 0 0 0 0 S 19.6 0.0 0:22.25 kworker/18:1
326 root 20 0 0 0 0 S 19.3 0.0 0:22.42 kworker/22:1
233 root 20 0 0 0 0 S 16.9 0.0 0:17.46 kworker/12:1
183 root 20 0 0 0 0 S 14.6 0.0 0:16.10 kworker/13:1
1499 root 20 0 0 0 0 S 14.3 0.0 0:16.48 kworker/14:2
208 root 20 0 0 0 0 S 14.0 0.0 0:16.64 kworker/11:1
271 root 20 0 0 0 0 S 14.0 0.0 0:16.30 kworker/15:1
320 root 20 0 0 0 0 S 13.6 0.0 0:14.60 kworker/28:1
269 root 20 0 0 0 0 S 13.3 0.0 0:15.68 kworker/10:1
268 root 20 0 0 0 0 S 12.3 0.0 0:14.36 kworker/9:1
280 root 20 0 0 0 0 S 11.0 0.0 0:13.05 kworker/25:1
281 root 20 0 0 0 0 S 11.0 0.0 0:12.36 kworker/31:1
184 root 20 0 0 0 0 S 10.3 0.0 0:30.89 kworker/29:1
278 root 20 0 0 0 0 S 10.3 0.0 0:12.57 kworker/30:1
279 root 20 0 0 0 0 S 9.3 0.0 0:12.26 kworker/27:1
277 root 20 0 0 0 0 S 8.0 0.0 0:09.98 kworker/26:1
282 root 20 0 0 0 0 S 7.6 0.0 0:09.02 kworker/24:1
8 root 20 0 0 0 0 S 1.3 0.0 0:01.80 rcu_sched
....