I ram running Docker version 1.9.1-cs2, build 4ade326 on Ubuntu 15.04 x64 (DigitalOcean) via Tutum. The docker process itself is using a ton of swap memory (as verified via VmSwap in /proc/<docker PID>/status), slowly growing over about a day, until about 780 MB. The system has 1 GB of RAM and 2 GB of swap in total.
Can anyone please explain to me why docker is eating all this swap? It’s bringing my system to its knees.
For reference, you can see my ServerFault question on the matter.
$ docker info Containers: 12 Images: 207 Server Version: 1.9.1-cs2 Storage Driver: aufs Root Dir: /var/lib/docker/aufs Backing Filesystem: extfs Dirs: 231 Dirperm1 Supported: true Execution Driver: native-0.2 Logging Driver: json-file Kernel Version: 3.19.0-31-generic Operating System: Ubuntu 15.04 CPUs: 1 Total Memory: 993.1 MiB Name: staging.muzhack.com ID: YX6B:6FOP:VNZI:Y5EK:QKD7:CEKE:UAWE:CQW7:YVJ7:XHEH:KM36:WTL7