After few hours, it’s impossibile to browse at config pages.
Every HTTP request remain on pending state for minutes (then it will be completed successfully) and the page is not loaded because it need many HTTP requests.
A machine reboot is required.
Below, the “top”:
top - 18:23:00 up 3 days, 4:02, 1 user, load average: 0.39, 0.18, 0.14
Tasks: 137 total, 1 running, 136 sleeping, 0 stopped, 0 zombie
%Cpu(s): 0.7 us, 0.3 sy, 0.0 ni, 98.7 id, 0.3 wa, 0.0 hi, 0.0 si, 0.0 st
KiB Mem : 2905000 total, 664368 free, 1188836 used, 1051796 buff/cache
KiB Swap: 4063228 total, 4063228 free, 0 used. 1348232 avail Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
891 root 20 0 322676 6384 4016 S 0.3 0.2 0:39.28 rsyslogd
892 redis 20 0 143056 5804 1464 S 0.3 0.2 3:10.31 redis-server
1203 mongodb 20 0 482972 58260 20636 S 0.3 2.0 8:21.20 mongod
10188 root 20 0 162136 2280 1520 R 0.3 0.1 0:00.02 top
46778 root 20 0 854088 14008 2384 S 0.3 0.5 1:44.17 fail2ban-server
1 root 20 0 43812 4044 2512 S 0.0 0.1 0:50.21 systemd
2 root 20 0 0 0 0 S 0.0 0.0 0:00.02 kthreadd
4 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 kworker/0:0H
6 root 20 0 0 0 0 S 0.0 0.0 0:11.72 ksoftirqd/0
7 root rt 0 0 0 0 S 0.0 0.0 0:00.00 migration/0