[CRIU] [PATCH p.haul] p.haul: increase dump and predump timeouts for Virtuozzo containers

Cyrill Gorcunov gorcunov at gmail.com
Tue Jun 21 09:26:32 PDT 2016


On Tue, Jun 21, 2016 at 01:41:36PM +0400, Nikita Spiridonov wrote:
> On Mon, 2016-06-20 at 20:31 -0700, Andrew Vagin wrote:
> > On Wed, Jun 15, 2016 at 11:04:48AM +0400, Nikita Spiridonov wrote:
> > > By default timeout to freeze all processes in container is 10
> > > seconds. For containers with large number of processes freeze can
> > > take more time, so increase timeout up to 180 seconds.
> > 
> > Do we really want to migrate a container with so big downtime?
> > 
> 
> Yep as for me; at the present moment this fix needed for our internal
> stress tests (which fails due to freeze timeout). Pick 180 seconds on
> the advice of Cyrill.

What is interesting the timeout not always happening, once I hit
a problem where time on the node has jumped up and our 10 sec by
default timelimit expectedly overflowed interrupting checkpoint
procedure. So I think 180 sec is a good choise because otherwise
if freezing processes takes more than that we're definitely in
troubles.


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