[CRIU] Docker checkpoint: real-world workloads

[Alice Frosi]

Docker version:

Client:
  Version:      17.10.0-dev
  API version:  1.32
  Go version:   go1.9
  Git commit:
  Built:        Thu Sep 21 10:13:54 2017
  OS/Arch:      linux/s390x

Server:
  Version:      17.06.0-dev
  API version:  1.32 (minimum version 1.12)
  Go version:   go1.8.3
  Git commit:   e9cb25e967
  Built:        Thu Sep 21 09:31:03 2017
  OS/Arch:      linux/s390x
  Experimental: true

Docker checkpoint commands:

docker checkpoint create CONTAINER_NAME checkpoint

docker start CONTAINER_NAME --checkpoint=checkpoint

Thanks for the help

Alice

> Could you share the version of Docker you were running, along with the 
> commands you used to invoke the checkpoint and restore?
>
> On Fri, Sep 22, 2017 at 8:05 AM Alice Frosi <alice at linux.vnet.ibm.com 
> <mailto:alice at linux.vnet.ibm.com>> wrote:
>
>     Hi,
>
>     We have started to test docker checkpoint with a real-world workloads.
>
>     Until now we tried with acmeair-nodejs [1] with the microservice
>     usecase.
>
>     This application creates 10 containers and they interact between
>     each other with volumes and network
>
>     connection. The checkpoint war not successful. Here, the error
>     message in restore:
>
>     (00.195135)      1: No iptables-9.img image
>
>     (00.195136)      1: Error (criu/include/image.h:144): BUG at
>     criu/include/image.h:144
>
>     (00.195171) Error (criu/cr-restore.c:1284): 15638 killed by signal
>     127: Unknown signal 127
>
>     (00.315156) Error (criu/mount.c:2980): mnt: Can't remove the
>     directory /tmp/.criu.mntns.C12otH: No such file or directory
>
>     (00.315160) Error (criu/cr-restore.c:2152): Restoring FAILED.
>
>     We tested with criu version:
>
>     Version: 3.4
>
>     GitID: v3.4-224-g3706af7b
>
>     1) Any ideas for what could have caused the error?
>
>     Additionally, we have two more general questions.
>
>     2) How should we perform checkpoint for applications with multiple
>     container interaction?
>
>     3) For which use cases have you already tried the C/R?
>
>     We saw this overview in your wiki [2], but it seems to be not
>     recently updated.
>
>     Regards
>
>     Alice Frosi
>
>     [1]
>     https://github.com/blueperf/acmeair-nodejs/blob/master/README_Docker.md
>     [2] https://criu.org/What_software_is_supported
>
>
>
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