docker0桥状态在启用/禁用之间切换，会导致什么原因？

Question

我有一些CoreOS裸金属实例，它们在docker0桥设备上显示了不寻常的行为。

在发生这种情况的一个例子中，我正在运行couchbase服务器，它导致了一些与再平衡有关的问题。当我将couchbase移动到一个没有发生这种情况的节点时，这个问题就消失了。

是什么引起的？是什么决定了桥接设备的状态？

硬件是一样的。除了IP地址之外，配置是相同的。

请参见以下输出：

[   11.219278] igb 0000:02:00.1 eno2: renamed from eth1
[   11.233382] igb 0000:02:00.0 eno1: renamed from eth0
[   11.254416] EXT4-fs (sda6): mounted filesystem with ordered data mode. Opts: commit=600
[   11.458737] IPv6: ADDRCONF(NETDEV_UP): ib0: link is not ready
[   11.579397] IPv6: ADDRCONF(NETDEV_UP): eno2: link is not ready
[   11.698029] IPv6: ADDRCONF(NETDEV_UP): eno1: link is not ready
[   12.010779] bridge: automatic filtering via arp/ip/ip6tables has been deprecated. Update your scripts to load br_netfilter if you need this.
[   12.024156] IPv6: ADDRCONF(NETDEV_UP): docker0: link is not ready
[   12.036945] ip_tables: (C) 2000-2006 Netfilter Core Team
[   12.051018] nf_conntrack version 0.5.0 (16384 buckets, 65536 max)
[   14.650802] igb 0000:02:00.0 eno1: igb: eno1 NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX
[   14.660237] IPv6: ADDRCONF(NETDEV_CHANGE): eno1: link becomes ready
[   14.742461] IPv6: ADDRCONF(NETDEV_CHANGE): ib0: link becomes ready
[   45.805457] random: nonblocking pool is initialized
[  111.008838] IPv6: ADDRCONF(NETDEV_UP): vetha6b1e7a: link is not ready
[  111.015941] IPv6: ADDRCONF(NETDEV_CHANGE): vetha6b1e7a: link becomes ready
[  111.023065] device veth7ef24ab entered promiscuous mode
[  111.043171] eth0: renamed from vetha6b1e7a
[  112.009927] docker0: port 1(veth7ef24ab) entered forwarding state
[  112.016158] docker0: port 1(veth7ef24ab) entered forwarding state
[  112.022483] IPv6: ADDRCONF(NETDEV_CHANGE): docker0: link becomes ready
[  112.099447] docker0: port 1(veth7ef24ab) entered disabled state
[  112.107076] device veth7ef24ab left promiscuous mode
[  112.112173] docker0: port 1(veth7ef24ab) entered disabled state
[  122.461130] device vethf877e85 entered promiscuous mode
[  122.466924] IPv6: ADDRCONF(NETDEV_UP): vethf877e85: link is not ready
[  122.473684] IPv6: ADDRCONF(NETDEV_CHANGE): vethf877e85: link becomes ready
[  122.480738] docker0: port 1(vethf877e85) entered forwarding state
[  122.486970] docker0: port 1(vethf877e85) entered forwarding state
[  122.506427] eth0: renamed from vethf26c9f2
[  122.632319] docker0: port 1(vethf877e85) entered disabled state
[  122.639992] device vethf877e85 left promiscuous mode
[  122.645123] docker0: port 1(vethf877e85) entered disabled state
[  132.921279] device vethb82e1be entered promiscuous mode
[  132.927131] IPv6: ADDRCONF(NETDEV_UP): vethb82e1be: link is not ready
[  132.933864] IPv6: ADDRCONF(NETDEV_CHANGE): vethb82e1be: link becomes ready
[  132.940925] docker0: port 1(vethb82e1be) entered forwarding state
[  132.947184] docker0: port 1(vethb82e1be) entered forwarding state
[  132.964347] eth0: renamed from veth6449c8e
[  133.013215] docker0: port 1(vethb82e1be) entered disabled state
[  133.021003] device vethb82e1be left promiscuous mode
[  133.026104] docker0: port 1(vethb82e1be) entered disabled state
[  143.403885] device vethddb7ee6 entered promiscuous mode
[  143.409539] IPv6: ADDRCONF(NETDEV_UP): vethdd4d268: link is not ready
[  143.416339] IPv6: ADDRCONF(NETDEV_CHANGE): vethdd4d268: link becomes ready
[  143.433351] eth0: renamed from vethdd4d268
[  144.404045] docker0: port 1(vethddb7ee6) entered forwarding state
[  144.410292] docker0: port 1(vethddb7ee6) entered forwarding state
[  144.480602] docker0: port 1(vethddb7ee6) entered disabled state
[  144.488347] device vethddb7ee6 left promiscuous mode
[  144.493480] docker0: port 1(vethddb7ee6) entered disabled state
[  154.925053] IPv6: ADDRCONF(NETDEV_UP): vethadcefb2: link is not ready
[  154.931794] device veth6087f8b entered promiscuous mode
[  154.937610] IPv6: ADDRCONF(NETDEV_CHANGE): vethadcefb2: link becomes ready
[  154.956632] eth0: renamed from vethadcefb2
[  155.924469] docker0: port 1(veth6087f8b) entered forwarding state
[  155.930718] docker0: port 1(veth6087f8b) entered forwarding state
[  156.007957] docker0: port 1(veth6087f8b) entered disabled state
[  156.015658] device veth6087f8b left promiscuous mode
[  156.020781] docker0: port 1(veth6087f8b) entered disabled state
[  166.387105] IPv6: ADDRCONF(NETDEV_UP): veth407dccf: link is not ready
[  166.394294] IPv6: ADDRCONF(NETDEV_CHANGE): veth407dccf: link becomes ready
[  166.401417] device veth8f92cbb entered promiscuous mode
[  166.420099] eth0: renamed from veth407dccf
[  167.386861] docker0: port 1(veth8f92cbb) entered forwarding state
[  167.393107] docker0: port 1(veth8f92cbb) entered forwarding state
[  167.476477] docker0: port 1(veth8f92cbb) entered disabled state
[  167.484157] device veth8f92cbb left promiscuous mode

Answer 1

这是码头桥的常见行为。每当容器上升或下降时，桥状态都会发生变化。

它会影响couchbase吗？