3 ms·

Thanks for the explanation. Sounds like Kubernetes should work just fine for small (<20 nodes) clusters, though. I'm still not quite understanding what utility

Thanks for the explanation. Sounds like Kubernetes should work just fine for small (<20 nodes) clusters, though. I'm still not quite understanding what utility Kubernetes brings to the table if you can also use it with Mesos. If you use Mesos, why involve Kubernetes at all, and not some Mesos-specific framework like Marathon or Aurora? Is Kubernetes simply a competitor to those frameworks? My concern about Mesos is mainly footprint and complexity. You need to run ZooKeeper, the master, the slaves, and then each framework. Only Mesos itself is written in C++, everything else is JVM, which is a pretty significant memory hog. By installing Mesos you just increased the complexity of the deployment/ops stack by a huge margin; you reap many benefits, of course, but Mesos is a lot more opaque and complex than a few daemons and some SSH-based scripts.

thockingoog 11y ago
Kubernetes supports 100 nodes with ease, and we expect to handle much more than that very quickly. We just had to pick some target to start with.
SEJeff 11y ago
Zookeeper is a hog, no one will disagree. But etcd is a very awesome yet very new technology. Even the protocol it implements (which is awesome), raft, is very new as a distributed consensus protocol. I'm not in any remote means throwing cold water on k8s, it is fantastic stuff. I only know that there are very very large production mesos clusters today, and the same can not be said (yet) for k8s. Read those two links I posted in the parent though if you have the time. It will make a ton more sense. That being said, you k8s is sexy stuff, it just ties you to docker, and I believe soon to be rocket. When I first started evaluating both (around docker 1.2.x), docker was not super viable and was pretty buggy. With 1.6.x and newer, most of my original concerns cease to matter. They are both excellent technologies, use whatever works for your environment.

thockingoog 11y ago

Kubernetes supports 100 nodes with ease, and we expect to handle much more than that very quickly. We just had to pick some target to start with.

SEJeff 11y ago

Zookeeper is a hog, no one will disagree. But etcd is a very awesome yet very new technology. Even the protocol it implements (which is awesome), raft, is very new as a distributed consensus protocol. I'm not in any remote means throwing cold water on k8s, it is fantastic stuff. I only know that there are very very large production mesos clusters today, and the same can not be said (yet) for k8s. Read those two links I posted in the parent though if you have the time. It will make a ton more sense. That being said, you k8s is sexy stuff, it just ties you to docker, and I believe soon to be rocket. When I first started evaluating both (around docker 1.2.x), docker was not super viable and was pretty buggy. With 1.6.x and newer, most of my original concerns cease to matter. They are both excellent technologies, use whatever works for your environment.