Re: [libvirt] [RFC PATCH 0/4] LXC - Implement save/restore domain state
On Wed, 2018-04-11 at 12:34 +0100, Daniel P. Berrangé wrote:
On Wed, Apr 11, 2018 at 12:29:11PM +0100, Radostin Stoyanov wrote:
> This patch set contains rebased version of Katerina's work from GSoC 2016 [1].
> It allows integrates CRIU [2] with the libvirt-lxc to enable save/resore of
containers.
I vaguely recall that when Katerina first did that work, we hit some
limitations of CRIU at the time, that blocked us merging. Does anyone
recall what that was, and if & when it was addressed in CRIU ?
What was missing in CRIU was the possibility to write the data into a stream
rather than in files. From what I recall this work has been merged upstream
in the mean time.
--
Cedric
>
> [1] https://wiki.libvirt.org/page/Google_Summer_of_Code_2016/lxc_migration
> [2] https://criu.org
>
> Radostin Stoyanov (4):
> configure: Include support for CRIU
> lxc: Add save/restore helper functions
> lxc: Add restore mode for libvirt-lxc
> lxc: Add save/restore support
>
> configure.ac | 1 +
> m4/virt-criu.m4 | 27 +++++
> po/POTFILES.in | 1 +
> src/lxc/Makefile.inc.am | 4 +
> src/lxc/lxc_container.c | 162 ++++++++++++++++++++++++++++--
> src/lxc/lxc_container.h | 3 +-
> src/lxc/lxc_controller.c | 104 ++++++++++++++++++-
> src/lxc/lxc_criu.c | 253 +++++++++++++++++++++++++++++++++++++++++++++++
> src/lxc/lxc_criu.h | 36 +++++++
> src/lxc/lxc_driver.c | 238 +++++++++++++++++++++++++++++++++++++++++++-
> src/lxc/lxc_process.c | 23 ++++-
> src/lxc/lxc_process.h | 1 +
> 12 files changed, 836 insertions(+), 17 deletions(-)
> create mode 100644 m4/virt-criu.m4
> create mode 100644 src/lxc/lxc_criu.c
> create mode 100644 src/lxc/lxc_criu.h
>
> --
> 2.14.3
>
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Regards,
Daniel