[Devel] [PATCH libvzctl] scripts: vz_ -- Checkpoint and restore clock offsets

[Cyrill Gorcunov]

On Tue, Apr 05, 2016 at 12:05:17PM +0300, Cyrill Gorcunov wrote:
> To make transition of containers between nodes shoveless
> we provide offsets for monotonic clocks. The kernel
> use these values to zap the time difference between nodes
> when setups timers. So that we need to save these values
> somewhere in images and set them up back on restore procedure.
> 
> Ideally this should be implemened via CRIU directly with
> custom cgroups properties engine but until done we may
> carry the settings with libvzctl directly, just like
> we do for coredump patterns.
> 
> Thus -- checkpoint @ve.clock_bootbased and @ve.clock_monotonic
> properties into image and restore them back.
> 
> https://jira.sw.ru/browse/PSBM-41406
> https://jira.sw.ru/browse/PSBM-45631
> 
> Signed-off-by: Cyrill Gorcunov <gorcunov at openvz.org>

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