์๋ ํ์ธ์,
์ปจํ ์ด๋์ ์๋ ํฌํธ์ ์ง์ ๋๋ ๋งคํ๋ ํฌํธ์ ์ฐ๊ฒฐํ ์ ์์ต๋๋ค.
์ ๋ณด
Docker version 1.5.0, build a8a31ef
Debian 7 backported kernel 3.16.0-0.bpo.4-amd64 #1 SMP Debian 3.16.7-ckt9-3~deb8u1~bpo70+1 (2015-04-27) x86_64 GNU/Linux
Containers: 14
Images: 29
Storage Driver: aufs
Root Dir: /var/lib/docker/aufs
Backing Filesystem: extfs
Dirs: 57
Execution Driver: native-0.2
Kernel Version: 3.16.0-0.bpo.4-amd64
Operating System: Debian GNU/Linux 7 (wheezy)
CPUs: 4
Total Memory: 7.815 GiB
Name: xxxxx
ID: PRMV:P7KM:5U6J:PYGZ:I3LQ:QWSB:ANFJ:VA23:URM4:JQOG:7TLM:4PTI
WARNING: No memory limit support
WARNING: No swap limit support
์ด๊ฒ์ ์ฐ๋ฆฌ์ ์ถ๊ฐ ์ค์ ์ ๋๋ค:
docker0 Link encap:Ethernet HWaddr 56:84:7a:fe:97:99
inet addr:172.17.42.1 Bcast:0.0.0.0 Mask:255.255.0.0
inet6 addr: fe80::5484:7aff:fefe:9799/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:26765 errors:0 dropped:0 overruns:0 frame:0
TX packets:30835 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:2173785 (2.0 MiB) TX bytes:63950837 (60.9 MiB)
vethc356415 Link encap:Ethernet HWaddr 9e:e7:da:08:87:c6
inet6 addr: fe80::9ce7:daff:fe08:87c6/64 Scope:Link
UP BROADCAST RUNNING MTU:1500 Metric:1
RX packets:200 errors:0 dropped:0 overruns:0 frame:0
TX packets:147 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:0
RX bytes:12828 (12.5 KiB) TX bytes:9398 (9.1 KiB)
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 xxxxxxxxxxxx 0.0.0.0 UG 0 0 0 eth0
xxxxxxxxxx 0.0.0.0 255.255.255.240 U 0 0 0 eth0
172.17.0.0 0.0.0.0 255.255.0.0 U 0 0 0 docker0
iptables -nL DOCKER
Chain DOCKER (1 references)
target prot opt source destination
ACCEPT tcp -- 0.0.0.0/0 172.17.0.20 tcp dpt:22
ACCEPT tcp -- 0.0.0.0/0 172.17.0.20 tcp dpt:80
์ธํฐํ์ด์ค๊ฐ vethc356415์ธ ์คํ ์ค์ธ ์ปจํ ์ด๋๋ Discourse ์ปจํ ์ด๋์ ๋๋ค. ํธ์คํธ ๋ฐ ๋คํธ์ํฌ ์ค์ ์ ๋ค์๊ณผ ๊ฐ์ต๋๋ค.
"HostConfig": {
"Binds": [
"/var/discourse/shared/standalone:/shared",
"/var/discourse/shared/standalone/log/var-log:/var/log"
],
"CapAdd": null,
"CapDrop": null,
"ContainerIDFile": "",
"Devices": [],
"Dns": null,
"DnsSearch": null,
"ExtraHosts": null,
"IpcMode": "",
"Links": null,
"LxcConf": [],
"NetworkMode": "bridge",
"PidMode": "",
"PortBindings": {
"22/tcp": [
{
"HostIp": "",
"HostPort": "2222"
}
],
"80/tcp": [
{
"HostIp": "",
"HostPort": "10001"
}
]
},
"Privileged": false,
"PublishAllPorts": false,
"ReadonlyRootfs": false,
"RestartPolicy": {
"MaximumRetryCount": 0,
"Name": "always"
},
"SecurityOpt": null,
"VolumesFrom": null
},
"NetworkSettings": {
"Bridge": "docker0",
"Gateway": "172.17.42.1",
"GlobalIPv6Address": "",
"GlobalIPv6PrefixLen": 0,
"IPAddress": "172.17.0.20",
"IPPrefixLen": 16,
"IPv6Gateway": "",
"LinkLocalIPv6Address": "fe80::42:acff:fe11:14",
"LinkLocalIPv6PrefixLen": 64,
"MacAddress": "02:42:ac:11:00:14",
"PortMapping": null,
"Ports": {
"22/tcp": [
{
"HostIp": "0.0.0.0",
"HostPort": "2222"
}
],
"80/tcp": [
{
"HostIp": "0.0.0.0",
"HostPort": "10001"
}
]
}
},
์ปจํ ์ด๋ ๋ด๋ถ์์ ์น์ฌ์ดํธ๋ฅผ pingํ ์ ์์ต๋๋ค.
ping google.com
PING google.com (62.168.125.50) 56(84) bytes of data.
64 bytes from 62.168.125.50: icmp_seq=1 ttl=59 time=0.486 ms
64 bytes from 62.168.125.50: icmp_seq=2 ttl=59 time=0.520 ms
๋ํ wget์ ์ฌ์ฉํ์ฌ Discourse์ ์ธ๋ฑ์ค ํ์ด์ง๋ฅผ ๊ฐ์ ธ์ฌ ์ ์์ต๋๋ค(์: ์ปจํ ์ด๋ ๋ด๋ถ์์ wget localhost ์ํ).
๋ฌธ์ ๋ ์ธ๋ถ(์: Docker ํธ์คํธ)์์ ์ปจํ ์ด๋์ ๋๋ฌํ๋ ค๊ณ ํ ๋์ ๋๋ค.
$ wget 172.17.0.20
๋๋
$ wget localhost:10001
์๋ํ์ง ์๊ณ ์ค๋จ๋ฉ๋๋ค. docker0 ์ธํฐํ์ด์ค์์ ํธ๋ํฝ ์ค๋ํ์ ์๋ํ์ ๋ TCP ์ฒดํฌ์ฌ ๋ฌธ์ ๊ฐ ์์์ ๋ฐ๊ฒฌํ์ต๋๋ค.
# tcpdump -i docker0 -vvv
tcpdump: listening on docker0, link-type EN10MB (Ethernet), capture size 65535 bytes
11:19:11.098052 IP (tos 0x0, ttl 64, id 30762, offset 0, flags [DF], proto TCP (6), length 60)
172.17.42.1.51633 > 172.17.0.20.http: Flags [S], cksum 0xcc74 (correct), seq 2431285397, win 29200, options [mss 1460,sackOK,TS val 3003252927 ecr 0,nop,wscale 7], length 0
11:19:11.098127 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto TCP (6), length 60)
172.17.0.20.http > 172.17.42.1.51633: Flags [S.], cksum 0x8266 (incorrect -> 0x26fb), seq 449304527, ack 2431285398, win 28960, options [mss 1460,sackOK,TS val 3003252927 ecr 3003252927,nop,wscale 7], length 0
11:19:12.095536 IP (tos 0x0, ttl 64, id 30763, offset 0, flags [DF], proto TCP (6), length 60)
172.17.42.1.51633 > 172.17.0.20.http: Flags [S], cksum 0xcb7a (correct), seq 2431285397, win 29200, options [mss 1460,sackOK,TS val 3003253177 ecr 0,nop,wscale 7], length 0
11:19:12.095613 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto TCP (6), length 60)
172.17.0.20.http > 172.17.42.1.51633: Flags [S.], cksum 0x8266 (incorrect -> 0x2601), seq 449304527, ack 2431285398, win 28960, options [mss 1460,sackOK,TS val 3003253177 ecr 3003252927,nop,wscale 7], length 0
11:19:13.303543 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto TCP (6), length 60)
172.17.0.20.http > 172.17.42.1.51633: Flags [S.], cksum 0x8266 (incorrect -> 0x24d3), seq 449304527, ack 2431285398, win 28960, options [mss 1460,sackOK,TS val 3003253479 ecr 3003252927,nop,wscale 7], length 0
11:19:14.099543 IP (tos 0x0, ttl 64, id 30764, offset 0, flags [DF], proto TCP (6), length 60)
172.17.42.1.51633 > 172.17.0.20.http: Flags [S], cksum 0xc985 (correct), seq 2431285397, win 29200, options [mss 1460,sackOK,TS val 3003253678 ecr 0,nop,wscale 7], length 0
11:19:14.099625 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto TCP (6), length 60)
172.17.0.20.http > 172.17.42.1.51633: Flags [S.], cksum 0x8266 (incorrect -> 0x240c), seq 449304527, ack 2431285398, win 28960, options [mss 1460,sackOK,TS val 3003253678 ecr 3003252927,nop,wscale 7], length 0
11:19:15.903555 IP (tos 0x0, ttl 64, id 0, offset 0, flags [DF], proto TCP (6), length 60)
172.17.0.20.http > 172.17.42.1.51607: Flags [S.], cksum 0x8266 (incorrect -> 0x0eeb), seq 1342518319, ack 2198677968, win 28960, options [mss 1460,sackOK,TS val 3003254129 ecr 3003244349,nop,wscale 7], length 0
๋์ปค ์ปจํ ์ด๋๊ฐ ์๋ชป๋ ์ฒดํฌ์ฌ(?)์ผ๋ก ์ธํด ์ญ์ ๋ ํจํท์ ๋ณด๋ด๋ ๊ฒ ๊ฐ์ต๋๋ค. ์ฐ๋ฆฌ๋ vethc356415์์ ๋ชจ๋ ์ข ๋ฅ์ ์คํ๋ก๋ฉ์ ๋นํ์ฑํํ๋ ค๊ณ ์๋ํ์ต๋๋ค.
ethtool -K vethc356415 gso off lro off tso off
ethtool --offload vethc356415 tx off rx off
๊ฒฐ๊ณผ๊ฐ ์์ต๋๋ค. ์ง๊ธ ์ฐ๋ฆฌ๋ ๊ฐํ ์์ต๋๋ค. ์ด๊ฒ์ ๋ฌธ์ ์ ๋๊น ์๋๋ฉด ๊ตฌ์ฑ ๋ฌธ์ ์ ๋๊น?
์๋ ํ์ธ์!
๋ฌธ์ ์์ฑ์ ๋ํ ์ด ์ค์ํ ์ ๋ณด๋ฅผ ์ฝ์ผ์ญ์์ค.
์๋ก์ด ๋ฌธ์ ๋ฅผ ๋ณด๊ณ ํ๋ ๊ฒฝ์ฐ ์ด๋ฏธ ์ด๋ ค ์๋ ์ค๋ณต ํญ๋ชฉ์ด ์๋์ง ํ์ธํ์ญ์์ค. ์ด ์ ์ฅ์์ ๋ฌธ์ ๋ชฉ๋ก์ ๊ฒ์ํ์ฌ ์ด๋ฅผ ํ์ธํ ์ ์์ต๋๋ค. ์ค๋ณต๋๋ ํญ๋ชฉ์ด ์์ผ๋ฉด ๋ฌธ์ ๋ฅผ ๋ซ๊ณ ๊ธฐ์กด ๋ฌธ์ ์ ๋๊ธ์ ๋์ ์ถ๊ฐํ์ธ์.
๋ฌธ์ ๊ฐ ๋ฒ๊ทธ๋ผ๊ณ ์์ฌ๋๋ ๊ฒฝ์ฐ ์๋์ ํ์๋ BUG REPORT INFORMATION์ ํฌํจํ๋๋ก ๋ฌธ์ ์ค๋ช ์ ์์ ํ์ญ์์ค. 7์ผ ์ด๋ด์ ์ด ์ ๋ณด๋ฅผ ์ ๊ณตํ์ง ์์ผ๋ฉด ๋ฌธ์ ๋ฅผ ๋๋ฒ๊น ํ ์ ์์ผ๋ฉฐ ์ข ๋ฃ๋ฉ๋๋ค. ๊ทธ๋ฌ๋ ๋์ค์ ์ ๋ณด๋ฅผ ์ ๊ณตํ๋ฉด ๋ค์ ์ด ๊ฒ์ ๋๋ค.
์ด๊ฒ์ ์๋ํ๋ ์ ๋ณด ์๋ต์ ๋๋ค.
๊ฐ์ฌํฉ๋๋ค.
๋ณด๊ณ ๋ฌธ์ ์ ๋ํ ์์ธํ ๋ด์ฉ์ https://github.com/docker/docker/blob/master/CONTRIBUTING.md#reporting -other-issues๋ฅผ ์ฐธ์กฐ
์๋ ๋ช ๋ น์ ์ฌ์ฉํ์ฌ ํ๊ฒฝ์ ์ฃผ์ ์ ๋ณด๋ฅผ ์ ๊ณตํ์ญ์์ค.
docker version
:
docker info
:
uname -a
:
์ถ๊ฐ ํ๊ฒฝ ์ธ๋ถ ์ ๋ณด ์ ๊ณต(AWS, VirtualBox, ๋ฌผ๋ฆฌ์ ๋ฑ):
๋ฌธ์ ๋ฅผ ์ฌํํ๋ ๋จ๊ณ๋ฅผ ๋์ดํฉ๋๋ค.
1.
2.
์ผ.
๋ฐ์ ๊ฒฐ๊ณผ๋ฅผ ์ค๋ช ํ์ญ์์ค.
์์ํ ๊ฒฐ๊ณผ๋ฅผ ์ค๋ช ํ์ธ์.
์ค์ํ๋ค๊ณ ์๊ฐํ๋ ์ถ๊ฐ ์ ๋ณด๋ฅผ ์ ๊ณตํ์ธ์.
----------๋ณด๊ณ ์ ์ข ๋ฃ ----------
docker 1.8.2๋ก ์ ๊ทธ๋ ์ด๋ํ ํ์๋ ๋ฌธ์ ๊ฐ ์ง์๋์์ต๋๋ค. ํธ์คํธ ๋ฐฉํ๋ฒฝ ์ค์ ์ ๋ณ๊ฒฝํ์ฌ ๋ฌธ์ ๊ฐ ํด๊ฒฐ๋์์ต๋๋ค.
์ด ๋ฌธ์ ๋ฅผ ํด๊ฒฐํ๊ธฐ ์ํด ๋ณ๊ฒฝํด์ผ ํ๋ ๋ฐฉํ๋ฒฝ ์ค์ ์ ๋ํ ์ ๋ณด๋ฅผ ์ ๊ณตํ ์ ์์ต๋๊น?
๊ฐ์ฅ ์ ์ฉํ ๋๊ธ
์ด ๋ฌธ์ ๋ฅผ ํด๊ฒฐํ๊ธฐ ์ํด ๋ณ๊ฒฝํด์ผ ํ๋ ๋ฐฉํ๋ฒฝ ์ค์ ์ ๋ํ ์ ๋ณด๋ฅผ ์ ๊ณตํ ์ ์์ต๋๊น?