Hello,
The old problem appears again because i am running 6 instances at same time.
TCP: out of memory -- consider tuning tcp_mem
Here is commands you mentioned .
root@squidbox:~# free -m
total used free shared buff/cache
available
Mem: 16037 13503 147 171 2386
1652
Swap: 8179 576 7603
root@squidbox:~# cat /proc/sys/net/ipv4/tcp_mem
381630 508844 763260
root@squidbox:~# top -n1 -b
top - 15:07:11 up 2 days, 10:04, 1 user, load average: 3.50, 3.24, 3.13
Tasks: 190 total, 2 running, 188 sleeping, 0 stopped, 0 zombie
%Cpu(s): 19.1 us, 6.2 sy, 0.5 ni, 67.5 id, 1.9 wa, 0.0 hi, 4.8 si, 0.0
st
KiB Mem : 16422248 total, 166088 free, 13829624 used, 2426536 buff/cache
KiB Swap: 8376316 total, 7786056 free, 590260 used. 1690840 avail Mem
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
1620 proxy 20 0 3977368 3.606g 4708 S 46.7 23.0 1272:29 squid
4451 root 20 0 632240 592500 584 S 26.7 3.6 404:11.34
ms-updates-fetc
2573 root 20 0 636068 594116 612 S 20.0 3.6 403:12.45
ms-updates-fetc
3661 root 20 0 646392 607532 500 S 20.0 3.7 427:31.70
ms-updates-fetc
4171 root 20 0 656876 619500 604 S 20.0 3.8 460:54.17
ms-updates-fetc
3934 root 20 0 642160 604896 492 S 13.3 3.7 411:05.97
ms-updates-fetc
4555 root 20 0 656732 619700 1548 R 13.3 3.8 478:16.31
ms-updates-fetc
14746 root 20 0 40552 3464 2892 R 6.7 0.0 0:00.01 top
1 root 20 0 185784 4972 3112 S 0.0 0.0 0:12.01 systemd
2 root 20 0 0 0 0 S 0.0 0.0 0:00.69 kthreadd
3 root 20 0 0 0 0 S 0.0 0.0 0:16.70
ksoftirqd/0
5 root 0 -20 0 0 0 S 0.0 0.0 0:00.00
kworker/0:0H
7 root 20 0 0 0 0 S 0.0 0.0 7:11.28
rcu_sched
8 root 20 0 0 0 0 S 0.0 0.0 0:00.00 rcu_bh
9 root rt 0 0 0 0 S 0.0 0.0 0:00.23
migration/0
10 root rt 0 0 0 0 S 0.0 0.0 0:00.54
watchdog/0
11 root rt 0 0 0 0 S 0.0 0.0 0:00.50
watchdog/1
12 root rt 0 0 0 0 S 0.0 0.0 0:00.22
migration/1
13 root 20 0 0 0 0 S 0.0 0.0 0:52.29
ksoftirqd/1
15 root 0 -20 0 0 0 S 0.0 0.0 0:00.00
kworker/1:0H
16 root rt 0 0 0 0 S 0.0 0.0 0:00.48
watchdog/2
17 root rt 0 0 0 0 S 0.0 0.0 0:00.40
migration/2
18 root 20 0 0 0 0 S 0.0 0.0 10:22.44
ksoftirqd/2
20 root 0 -20 0 0 0 S 0.0 0.0 0:00.00
kworker/2:0H
21 root rt 0 0 0 0 S 0.0 0.0 0:00.49
watchdog/3
22 root rt 0 0 0 0 S 0.0 0.0 0:00.24
migration/3
23 root 20 0 0 0 0 S 0.0 0.0 0:16.35
ksoftirqd/3
25 root 0 -20 0 0 0 S 0.0 0.0 0:00.00
kworker/3:0H
26 root 20 0 0 0 0 S 0.0 0.0 0:00.00
kdevtmpfs
27 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 netns
28 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 perf
29 root 20 0 0 0 0 S 0.0 0.0 0:00.13
khungtaskd
30 root 0 -20 0 0 0 S 0.0 0.0 0:00.00
writeback
31 root 25 5 0 0 0 S 0.0 0.0 0:00.00 ksmd
32 root 39 19 0 0 0 S 0.0 0.0 0:35.21
khugepaged
33 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 crypto
34 root 0 -20 0 0 0 S 0.0 0.0 0:00.00
kintegrityd
35 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 bioset
36 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 kblockd
37 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 ata_sff
38 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 md
39 root 0 -20 0 0 0 S 0.0 0.0 0:00.00
devfreq_wq
43 root 20 0 0 0 0 S 0.0 0.0 81:22.18 kswapd0
44 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 vmstat
45 root 20 0 0 0 0 S 0.0 0.0 0:00.17
fsnotify_mark
46 root 20 0 0 0 0 S 0.0 0.0 0:00.00
ecryptfs-kthrea
62 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 kthrotld
63 root 0 -20 0 0 0 S 0.0 0.0 0:00.00
acpi_thermal_pm
64 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 bioset
65 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 bioset
66 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 bioset
67 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 bioset
68 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 bioset
69 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 bioset
70 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 bioset
71 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 bioset
72 root 20 0 0 0 0 S 0.0 0.0 0:00.02
scsi_eh_0
73 root 0 -20 0 0 0 S 0.0 0.0 0:00.00
scsi_tmf_0
74 root 20 0 0 0 0 S 0.0 0.0 0:00.01
scsi_eh_1
75 root 0 -20 0 0 0 S 0.0 0.0 0:00.00
scsi_tmf_1
77 root 20 0 0 0 0 S 0.0 0.0 0:00.04
scsi_eh_2
78 root 0 -20 0 0 0 S 0.0 0.0 0:00.00
scsi_tmf_2
79 root 20 0 0 0 0 S 0.0 0.0 0:00.01
scsi_eh_3
80 root 0 -20 0 0 0 S 0.0 0.0 0:00.00
scsi_tmf_3
88 root 0 -20 0 0 0 S 0.0 0.0 0:00.00
ipv6_addrconf
102 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 deferwq
103 root 0 -20 0 0 0 S 0.0 0.0 0:00.00
charger_manager
108 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 bioset
110 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 bioset
111 root 0 -20 0 0 0 S 0.0 0.0 0:08.58
kworker/0:1H
112 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 bioset
113 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 bioset
115 root 0 -20 0 0 0 S 0.0 0.0 0:01.65
kworker/2:1H
116 root 0 -20 0 0 0 S 0.0 0.0 0:06.23
kworker/1:1H
117 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 bioset
163 root 20 0 0 0 0 S 0.0 0.0 0:00.00
scsi_eh_4
164 root 0 -20 0 0 0 S 0.0 0.0 0:00.00
scsi_tmf_4
170 root 0 -20 0 0 0 S 0.0 0.0 0:19.22
kworker/3:1H
171 root 0 -20 0 0 0 S 0.0 0.0 0:00.00
kpsmoused
237 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 ttm_swap
432 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 bioset
433 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 bioset
434 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 bioset
435 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 bioset
700 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 kdmflush
703 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 bioset
729 root 20 0 0 0 0 S 0.0 0.0 0:17.71
jbd2/dm-0-8
730 root 0 -20 0 0 0 S 0.0 0.0 0:00.00
ext4-rsv-conver
776 root 20 0 0 0 0 S 0.0 0.0 0:00.00 kauditd
779 root 20 0 43924 5732 3444 S 0.0 0.0 7:32.43
systemd-journal
800 root 20 0 102976 516 516 S 0.0 0.0 0:00.00 lvmetad
806 root 20 0 45616 2432 2000 S 0.0 0.0 0:12.24
systemd-udevd
983 root 0 -20 0 0 0 S 0.0 0.0 0:00.00
kvm-irqfd-clean
1003 root 0 -20 0 0 0 S 0.0 0.0 0:00.00
reiserfs/sdd1
1004 root 0 -20 0 0 0 S 0.0 0.0 0:00.00
reiserfs/sdc1
1005 root 0 -20 0 0 0 S 0.0 0.0 0:00.00
reiserfs/sdf1
1012 root 0 -20 0 0 0 S 0.0 0.0 0:00.00
reiserfs/sdg1
1016 root 0 -20 0 0 0 S 0.0 0.0 0:00.00
reiserfs/sdi1
1022 root 0 -20 0 0 0 S 0.0 0.0 0:00.00
reiserfs/sdh1
1024 root 20 0 0 0 0 S 0.0 0.0 0:10.50
jbd2/sde1-8
1025 root 0 -20 0 0 0 S 0.0 0.0 0:00.00
ext4-rsv-conver
1032 root 0 -20 0 0 0 S 0.0 0.0 0:00.00
reiserfs/sdb1
1039 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 kdmflush
1040 root 0 -20 0 0 0 S 0.0 0.0 0:00.00 bioset
1048 root 0 -20 0 0 0 S 0.0 0.0 0:00.00
ext4-rsv-conver
1138 systemd+ 20 0 100324 1592 1548 S 0.0 0.0 0:00.20
systemd-timesyn
1253 root 20 0 28644 2328 2128 S 0.0 0.0 0:02.90
systemd-logind
1255 syslog 20 0 256396 2276 1148 S 0.0 0.0 2:15.29 rsyslogd
1263 root 20 0 4400 1012 1012 S 0.0 0.0 0:00.00 acpid
1267 root 20 0 27324 948 620 S 0.0 0.0 0:00.88 smartd
1271 message+ 20 0 43028 1228 892 S 0.0 0.0 0:10.03
dbus-daemon
1320 root 20 0 274588 592 168 S 0.0 0.0 1:05.66
accounts-daemon
1329 root 20 0 27736 1764 1656 S 0.0 0.0 0:04.45 cron
1334 whoopsie 20 0 345040 972 432 S 0.0 0.0 0:00.09 whoopsie
1338 root 20 0 29888 212 212 S 0.0 0.0 0:00.00
cgmanager
1350 daemon 20 0 26052 1112 1084 S 0.0 0.0 0:00.00 atd
1352 root 20 0 472528 47288 3292 S 0.0 0.3 42:29.62
ms-updates-logg
1473 root 20 0 19480 1548 1440 S 0.0 0.0 0:06.55
irqbalance
1478 proxy 20 0 7464 284 0 S 0.0 0.0 0:00.25 polipo
1488 root 20 0 18852 0 0 S 0.0 0.0 0:00.00 daemon
1489 root 20 0 4508 1576 1484 S 0.0 0.0 0:00.27
megaraidsas-sta
1492 root 20 0 18852 0 0 S 0.0 0.0 0:00.00 daemon
1493 root 20 0 4508 1576 1496 S 0.0 0.0 0:00.23
megaclisas-stat
1544 dnsmasq 20 0 51596 1544 1432 S 0.0 0.0 0:32.33 dnsmasq
1618 root 20 0 129492 112 112 S 0.0 0.0 0:00.00 squid
1624 root 20 0 277096 1036 732 S 0.0 0.0 0:00.02 polkitd
1781 proxy 20 0 30224 36 36 S 0.0 0.0 1:29.41
log_file_daemon
1932 vnstat 20 0 7536 1860 1788 S 0.0 0.0 0:06.87 vnstatd
1935 root 20 0 65528 1680 1568 S 0.0 0.0 0:00.57 sshd
1995 debian-+ 20 0 97576 40352 4080 S 0.0 0.2 3:08.26 tor
2008 root 20 0 14660 1036 1036 S 0.0 0.0 0:00.00 agetty
2025 snmp 20 0 58552 5260 2724 S 0.0 0.0 2:23.73 snmpd
2060 root 20 0 441600 11468 3444 S 0.0 0.1 3:00.98
fail2ban-server
2065 root 20 0 92552 4496 2564 S 0.0 0.0 0:04.84
miniserv.pl
2555 root 20 0 67456 1516 1476 S 0.0 0.0 0:00.00 cron
2556 root 20 0 4508 348 348 S 0.0 0.0 0:00.00 sh
2562 root 20 0 11236 1348 1348 S 0.0 0.0 0:00.00 bash
2577 snmp 20 0 18804 2972 2508 S 0.0 0.0 0:11.78 perl
3635 root 20 0 67456 1528 1488 S 0.0 0.0 0:00.00 cron
3638 root 20 0 4508 376 376 S 0.0 0.0 0:00.00 sh
3641 root 20 0 11236 1380 1380 S 0.0 0.0 0:00.00 bash
3916 root 20 0 67456 1528 1488 S 0.0 0.0 0:00.00 cron
3919 root 20 0 4508 244 244 S 0.0 0.0 0:00.00 sh
3922 root 20 0 11236 1312 1312 S 0.0 0.0 0:00.00 bash
4145 root 20 0 67456 1528 1488 S 0.0 0.0 0:00.00 cron
4154 root 20 0 4508 400 400 S 0.0 0.0 0:00.00 sh
4158 root 20 0 11236 1356 1356 S 0.0 0.0 0:00.00 bash
4433 root 20 0 67456 1528 1488 S 0.0 0.0 0:00.00 cron
4441 root 20 0 4508 332 332 S 0.0 0.0 0:00.00 sh
4445 root 20 0 11236 1372 1372 S 0.0 0.0 0:00.00 bash
4529 root 20 0 67456 1528 1488 S 0.0 0.0 0:00.00 cron
4533 root 20 0 4508 324 324 S 0.0 0.0 0:00.00 sh
4538 root 20 0 11236 1380 1380 S 0.0 0.0 0:00.00 bash
9791 root 20 0 2100128 3268 3084 S 0.0 0.0 0:00.08
console-kit-dae
12173 root 20 0 0 0 0 S 0.0 0.0 0:00.93
kworker/u32:0
12997 root 20 0 0 0 0 S 0.0 0.0 0:00.00
kworker/3:0
13232 root 20 0 0 0 0 S 0.0 0.0 0:01.73
kworker/2:0
13458 root 20 0 0 0 0 S 0.0 0.0 0:01.48
kworker/0:1
13475 root 20 0 0 0 0 S 0.0 0.0 0:01.45
kworker/3:1
13558 root 20 0 0 0 0 S 0.0 0.0 0:00.34
kworker/u32:1
13656 root 20 0 0 0 0 S 0.0 0.0 0:01.12
kworker/1:1
13658 root 20 0 0 0 0 S 0.0 0.0 0:00.40
kworker/2:2
13809 root 20 0 0 0 0 S 0.0 0.0 0:00.16
kworker/u32:3
13896 root 20 0 0 0 0 S 0.0 0.0 0:00.00
kworker/1:2
13898 root 20 0 0 0 0 S 0.0 0.0 0:00.00
kworker/0:0
14055 root 20 0 0 0 0 S 0.0 0.0 0:00.00
kworker/2:1
14103 root 20 0 0 0 0 S 0.0 0.0 0:00.26
kworker/u32:4
14411 root 20 0 105996 6804 5800 S 0.0 0.0 0:00.03 sshd
14413 root 20 0 0 0 0 S 0.0 0.0 0:00.00
kworker/3:2
14414 omid 20 0 45256 4452 3760 S 0.0 0.0 0:00.08 systemd
14417 omid 20 0 225564 2144 0 S 0.0 0.0 0:00.00 (sd-pam)
14521 omid 20 0 105996 3424 2424 S 0.0 0.0 0:00.00 sshd
14522 omid 20 0 21288 5116 3252 S 0.0 0.0 0:00.08 bash
14537 root 20 0 70080 4036 3344 S 0.0 0.0 0:00.01 sudo
14538 root 20 0 21476 5248 3192 S 0.0 0.0 0:00.05 bash
14554 root 20 0 0 0 0 S 0.0 0.0 0:00.00
kworker/2:3
14639 root 20 0 0 0 0 S 0.0 0.0 0:00.00
kworker/1:0
14647 root 20 0 0 0 0 S 0.0 0.0 0:00.00
kworker/0:2
14703 root 20 0 6012 660 588 S 0.0 0.0 0:00.00 sleep
14740 root 20 0 6012 764 692 S 0.0 0.0 0:00.00 sleep
14742 root 20 0 67456 3436 2944 S 0.0 0.0 0:00.00 cron
14743 root 20 0 4508 760 680 S 0.0 0.0 0:00.00 sh
14744 root 20 0 6036 672 600 S 0.0 0.0 0:00.00 iostat
14745 root 20 0 15032 1108 1000 S 0.0 0.0 0:00.00 sed
22792 proxy 20 0 26420 6352 1392 S 0.0 0.0 0:33.16
storeid_file_re
22793 proxy 20 0 26420 6360 1400 S 0.0 0.0 0:00.68
storeid_file_re
22794 proxy 20 0 26420 6372 1408 S 0.0 0.0 0:00.20
storeid_file_re
22795 proxy 20 0 26420 6420 1456 S 0.0 0.0 0:00.15
storeid_file_re
22796 proxy 20 0 26420 6236 1396 S 0.0 0.0 0:00.14
storeid_file_re
32745 root 0 -20 18228 5852 3548 S 0.0 0.0 0:02.26 atop
root@squidbox:~# cat /proc/net/sockstat
sockets: used 15109
TCP: inuse 2337 orphan 879 tw 2073 alloc 15789 mem 767999
UDP: inuse 5 mem 5
UDPLITE: inuse 0
RAW: inuse 0
FRAG: inuse 0 memory 0
root@squidbox:~# cat /proc/sys/net/ipv4/tcp_max_orphans
65536
--
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