CoreOS in and of itself does not try to compete directly with Mesos. Fleet vs Mesos is a much better comparison. The biggest difference there is that Mesos is battle proven at scale (100K+ node deployments running in PROD for 1+ yrs). Fleet is not proven at scale.
HTH, JJ. > On Jan 18, 2015, at 11:15 AM, scott@heroku <sc...@heroku.com> wrote: > > Afaik mesos is much more flexible than fleet, which is the scheduling system > on Coreos > > If you can successfully schedule your workloads with fleet you don't need > mesos. If not mesos can do more than fleet. > > > > Sent from my iPhone > >> On Jan 18, 2015, at 10:29 AM, Victor L <vlyamt...@gmail.com> wrote: >> >> Hope this helps some >> It doesn't as it doesn't even try to answer my question. Let me re- phrase >> it: what does mesos on the coreos cluster do that coreos itself doesn't do >> already? >> >>> On Sun, Jan 18, 2015 at 10:00 AM, Jason Giedymin <jason.giedy...@gmail.com> >>> wrote: >>> The value of coreos that immediately comes to mind since I do much work >>> with these tools: >>> >>> - the small foot print, it is a minimal os, meant to run containers. So it >>> throws everything not needed for that out. >>> - containers are the launch vehicle, thus deps are in container land. I >>> can run and test containers with ease, not having to worry about multiple >>> OSes. >>> - with etcd and fleet, coordinating the launch and modification of both >>> machines and cluster make it a breeze. Allowing you to do dynamic mesos >>> scaling up or down. I add nodes at will, across multiple cloud platforms, >>> ready to launch multitude of containers or just mesos. >>> - security. There is a defined write strategy. You cannot write willy >>> nilly to any location. >>> - all the above further allow auto OS updates, which is supported today on >>> all platforms that deploy coreos. This means more frequent updates since >>> the os is minimal, which should increase the security effectiveness when >>> compared to big box superstore OSes like Redhat or Ubuntu. Some platforms >>> charge quite a bit for managed updates of this frequency and level of >>> testing. >>> >>> Coreos allows me to keep apps in a configured container that I trust, >>> tested, and works time and time again. >>> >>> I see coreos as a compliment. >>> >>> As a fyi I'm available for questions, debugging, and client work in this >>> area. >>> >>> Hope this helps some, from real world usage. >>> >>> Sent from my iPad >>> >>> > On Jan 18, 2015, at 9:16 AM, Victor L <vlyamt...@gmail.com> wrote: >>> > >>> > I am confused: what's the value of mesos on the top of coreos cluster? >>> > Mesos provides distributed resource management, fault tolerance, etc., >>> > but doesn't coreos provides the same things already? >>> > Thanks >>
