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

[Igor Sukhih]

On 04/08/2016 10:49 AM, Cyrill Gorcunov wrote:
> 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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