Linode running Docker keeps becoming unresponsive

Linode Staff

My Linode keeps becoming unresponsive. It runs Docker and I am seeing the following messages on my console log:

[   18.501513] EXT4-fs (dm-1): mounted filesystem with ordered data mode. Opts: (null)
[   18.512782] br-0ea93a274d5d: port 1(veth3efa949) entered blocking state
[   18.514123] br-0ea93a274d5d: port 1(veth3efa949) entered disabled state
[   18.516916] device veth3efa949 entered promiscuous mode
[   18.523052] br-0ea93a274d5d: port 1(veth3efa949) entered blocking state
[   18.524349] br-0ea93a274d5d: port 1(veth3efa949) entered forwarding state
[   18.528912] br-0ea93a274d5d: port 1(veth3efa949) entered disabled state
[   18.560360] EXT4-fs (dm-2): mounted filesystem with ordered data mode. Opts: (null)
[   18.568269] br-0ea93a274d5d: port 2(veth658cec9) entered blocking state
[   18.569687] br-0ea93a274d5d: port 2(veth658cec9) entered disabled state
[   18.573752] device veth658cec9 entered promiscuous mode
[   18.581739] br-0ea93a274d5d: port 2(veth658cec9) entered blocking state
[   18.583081] br-0ea93a274d5d: port 2(veth658cec9) entered forwarding state
[   18.588661] IPv6: ADDRCONF(NETDEV_CHANGE): br-0ea93a274d5d: link becomes ready
[   18.590564] br-0ea93a274d5d: port 2(veth658cec9) entered disabled state
[   18.650611] EXT4-fs (dm-3): mounted filesystem with ordered data mode. Opts: (null)
[   18.660205] br-0ea93a274d5d: port 3(vethd2fd2e2) entered blocking state
[   18.668203] br-0ea93a274d5d: port 3(vethd2fd2e2) entered disabled state
[   18.671454] device vethd2fd2e2 entered promiscuous mode
[   18.689021] br-0ea93a274d5d: port 3(vethd2fd2e2) entered blocking state
[   18.690346] br-0ea93a274d5d: port 3(vethd2fd2e2) entered forwarding state
[   18.724445] EXT4-fs (dm-4): mounted filesystem with ordered data mode. Opts: (null)
[   18.766747] EXT4-fs (dm-5): mounted filesystem with ordered data mode. Opts: (null)
[   18.797678] docker0: port 1(veth39a2f3d) entered blocking state
[   18.800512] docker0: port 1(veth39a2f3d) entered disabled state

I'm trying to back this Linode up with rsync, but it keeps freezing with without explaination.

1 Reply

It looks like your Linode may be having problems keeping a stable network connection due to the repeated disabling and enabling of interfaces. Based on your console log, the following Reddit post suggests that this may be due to a container that keeps stopping and starting:

You may want to investigate your Docker log files to see which container keeps starting and stopping. Here is an article that talks about reviewing your Docker logs:

According to this article (assuming that you are running Debian) you can check them with the following command:

tail -f -n 1000 /var/log/daemon.log | grep --color docker

Backing Up Your Disk

You will want to to boot your Linode into Rescue Mode and mount your filesystem to /media/sda.

You should then be able to use rsync to backup your files without interference from your interfaces going up and down.

Other backup methods are covered here:

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