[infinispan-dev] Video for DevNation talk on auto-scaling Infinispan with Kubernetes

[Sebastian Laskawiec]

That's a good idea, but let me first figure out how to do it properly (and
make sure it works as I expect)...

On Wed, Aug 3, 2016 at 11:16 AM, Galder Zamarreño <galder at redhat.com> wrote:

> Hey Sebastian,
>
> Yeah, as Ray rightly says in the video, his approach is based on old
> Kubernetes versions, and so the current status might be different.
>
> What about you write up a blog with a link to the video and you explain
> the best practices or more recent approaches that we're using these days? A
> comparison might be handy for our users to better understand the concepts.
>
> WDYT?
>
> Cheers,
> --
> Galder Zamarreño
> Infinispan, Red Hat
>
> > On 3 Aug 2016, at 11:08, Sebastian Laskawiec <slaskawi at redhat.com>
> wrote:
> >
> > Thanks Galder for this finding!
> >
> > Just a small comment on things which are not obvious - Ray created his
> own custom autoscaler implementation. Both OpenShift and Kubernetes have
> support for so called Custom Metrics [1][2] which you can use for
> autoscaling.
> >
> > However, trying to scale based on the memory consumption is a tricky
> business [3][4]. I've been talking with Andrew about this and he says that
> settings `-Xms` to some low value and `-Xmx` reasonably high might do the
> trick. When you add a node to the cluster (assuming only DIST caches) the
> total amount of used memory in the Pods will (possibly) drop after some
> time. This however might not work for CMS GC.
> >
> > Anyway - those are the things which are on my plate for this and next
> week. Once I have some results I would be glad to share them with you.
> >
> > And as always - any help with this would be highly appreciated.
> >
> > Thanks
> > Sebastian
> >
> > [1]
> https://github.com/kubernetes/kubernetes/blob/master/docs/proposals/custom-metrics.md
> > [2] https://github.com/openshift/origin-metrics
> > [3]
> https://developerblog.redhat.com/2014/07/15/dude-wheres-my-paas-memory-tuning-javas-footprint-in-openshift-part-1/
> > [4]
> https://developerblog.redhat.com/2014/07/22/dude-wheres-my-paas-memory-tuning-javas-footprint-in-openshift-part-2/
> >
> >
> > On Wed, Aug 3, 2016 at 9:49 AM, Galder Zamarreño <galder at redhat.com>
> wrote:
> > Hi all,
> >
> > More amazing videos coming out of DevNation 2016, this time with the
> amazing Ray Tsang showing how to auto-scale Infinispan with Kubernetes:
> > http://developers.redhat.com/video/youtube/E4ACZ6_WDyo/
> >
> > Enjoy!
> > --
> > Galder Zamarreño
> > Infinispan, Red Hat
> >
> >
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