docker network freezing randomly

Question

Às vezes, toda a rede do meu servidor dedicado está congelando (o ssh também não funciona). é repetido aleatoriamente.

SO: Ubuntu 14.04.3 LTS

Em contêineres do docker instalados no servidor, e vejo em dmesg logs :

[1568390.415464] IPv6: ADDRCONF(NETDEV_UP): veth70c3620: link is not ready
[1568390.415571] docker0: port 2(vethfd09262) entered forwarding state
[1568390.415575] docker0: port 2(vethfd09262) entered forwarding state
[1568390.415586] IPv6: ADDRCONF(NETDEV_CHANGE): veth70c3620: link becomes ready
[1568390.453889] eth0: renamed from veth70c3620
[1568405.455565] docker0: port 2(vethfd09262) entered forwarding state
[1568490.807194] aufs au_opts_verify:1612:docker[22618]: dirperm1 breaks the protection by the permission bits on the lower branch
[1568490.839695] aufs au_opts_verify:1612:docker[25041]: dirperm1 breaks the protection by the permission bits on the lower branch
[1568490.873185] aufs au_opts_verify:1612:docker[25041]: dirperm1 breaks the protection by the permission bits on the lower branch
[1568491.213577] aufs au_opts_verify:1612:docker[25041]: dirperm1 breaks the protection by the permission bits on the lower branch
[1568491.248730] aufs au_opts_verify:1612:docker[25041]: dirperm1 breaks the protection by the permission bits on the lower branch
[1568491.292433] aufs au_opts_verify:1612:docker[22618]: dirperm1 breaks the protection by the permission bits on the lower branch
[1568491.544051] aufs au_opts_verify:1612:docker[22618]: dirperm1 breaks the protection by the permission bits on the lower branch
[1568491.571716] aufs au_opts_verify:1612:docker[22618]: dirperm1 breaks the protection by the permission bits on the lower branch
[1568491.605760] aufs au_opts_verify:1612:docker[22618]: dirperm1 breaks the protection by the permission bits on the lower branch
[1568491.858186] aufs au_opts_verify:1612:docker[25041]: dirperm1 breaks the protection by the permission bits on the lower branch
[1568491.885767] aufs au_opts_verify:1612:docker[25041]: dirperm1 breaks the protection by the permission bits on the lower branch
[1568491.919876] aufs au_opts_verify:1612:docker[25041]: dirperm1 breaks the protection by the permission bits on the lower branch
[1568492.164684] aufs au_opts_verify:1612:docker[25041]: dirperm1 breaks the protection by the permission bits on the lower branch
[1568492.197225] aufs au_opts_verify:1612:docker[25041]: dirperm1 breaks the protection by the permission bits on the lower branch
[1568492.233425] aufs au_opts_verify:1612:docker[25041]: dirperm1 breaks the protection by the permission bits on the lower branch
[1568502.618191] veth70c3620: renamed from eth0
[1568502.653605] docker0: port 2(vethfd09262) entered disabled state
[1568502.681529] docker0: port 2(vethfd09262) entered disabled state
[1568502.682111] device vethfd09262 left promiscuous mode
[1568502.682113] docker0: port 2(vethfd09262) entered disabled state
[1568503.037301] aufs au_opts_verify:1612:docker[25411]: dirperm1 breaks the protection by the permission bits on the lower branch
[1568503.071988] aufs au_opts_verify:1612:docker[25370]: dirperm1 breaks the protection by the permission bits on the lower branch
[1568503.102768] aufs au_opts_verify:1612:docker[4932]: dirperm1 breaks the protection by the permission bits on the lower branch
[1568503.103562] device veth6cd39d2 entered promiscuous mode
[1568503.103649] IPv6: ADDRCONF(NETDEV_UP): vethffd65cb: link is not ready
[1568503.103702] docker0: port 2(veth6cd39d2) entered forwarding state
[1568503.103706] docker0: port 2(veth6cd39d2) entered forwarding state
[1568503.103719] IPv6: ADDRCONF(NETDEV_CHANGE): vethffd65cb: link becomes ready
[1568503.146365] eth0: renamed from vethffd65cb
[1568518.132006] docker0: port 2(veth6cd39d2) entered forwarding state

Informações do Docker:

Containers: 40
Images: 538
Storage Driver: aufs
 Root Dir: /var/lib/docker/aufs
 Backing Filesystem: extfs
 Dirs: 618
 Dirperm1 Supported: true
Execution Driver: native-0.2
Logging Driver: json-file
Kernel Version: 3.19.0-25-generic
Operating System: Ubuntu 14.04.3 LTS
CPUs: 8
Total Memory: 31.29 GiB
Name: crosspromo-inpgngno01.xxxxxxx
ID: EOO2:DMGR:POHZ:VLKM:6KKZ:DX6S:5XIN:X4DA:22HH:L62N:FCI5:O32P
WARNING: No swap limit support

uname -a

Linux crosspromo-inpgngno01.xxxxxxx 3.19.0-25-generic #26~14.04.1-Ubuntu SMP Fri Jul 24 21:16:20 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

Então: Problemas de janela de encaixe, ou talvez a interface de uplink esteja quebrada?

    

Answer 1

Você está executando um sistema que não é conhecido como o Docker. A julgar pelo erro, é simplesmente bater o sistema, repetidamente.

• O AUFS é instável e conhecido por causar panes no kernel.
• O Ubuntu 14 está executando um kernel antigo que não possui componentes críticos para conteinerização
• Versão antiga do Docker, montada com bugs.

Você pode começar atualizando para o Ubuntu 16.04 TLS (o mais recente de escrever isso). Boa sorte para o Docker funcionar, a configuração padrão normalmente não funciona.

Basicamente, o Docker está completamente quebrado e instável na maioria dos sistemas. Veja estes artigos para a versão longa e dramática.

• link
• link