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  1. #1
    WHT-BR Top Member
    Data de Ingresso
    Dec 2010
    Posts
    14,990

    [EN] Docker Swarm vs Kubernetes: Evaluating Container Platforms at Scale

    This article addresses three questions about scaling Docker Swarm and Kubernetes. What is their performance at scale? Can they operate at scale? What does it take to support them at scale?

    https://medium.com/on-docker/evaluat...e-5e7b44d93f2c


    "This project brought a dark reality — that the cloud is not infinite — screaming to the forefront of my cluster placement decisions when I exhausted us-west-2a of all m3.medium capacity."

  2. #2
    WHT-BR Top Member
    Data de Ingresso
    Dec 2010
    Posts
    14,990

    Alta latência no Kubernete do Google é virtude

    Imprensa Alugada
    Mar 10, 2016

    Docker Swarm beats Kubernetes? Not so fast

    Does Docker's Swarm container orchestration system outperform Google's Kubernetes? A recent benchmark says so, but the bigger picture is more complex.

    ...

    Swarm outperformed Kubernetes in container startup time. Most of the Swarm-managed containers started in under a second, while Kubernetes took 2 to 3 seconds.

    ...

    Both services ran on a 1,000-node cluster running a maximum of 30,000 containers. On a cluster that was 90 to 99 percent full, Kubernetes startup time rose to 15 seconds, but Nickoloff discarded these results on the grounds that they were likely due to issues that are already being addressed.

    (Nota: o objetivo do estudo era Evaluating Container Platforms at Scale)
    ...

    With containers, says Docker, it's not enough to say a container has been scheduled to run, as Kubernetes does; it's important to know how long it actually took for the container to start.

    In a blog post, Docker states, "In a world where containers may only live for a few minutes, having a significant delay in gathering real-time insight into the state of the environment means you never really know what’s happening in your infrastructure at any particular moment in time."

    ...

    Not everyone saw Nickoloff's findings as a slam dunk. Kelsey Hightower, formerly of CoreOS (financiado pelo Google) and now with Google's Cloud Platform division (where Kubernetes originally took flight), tweeted, "Kubernetes and Docker Swarm focus on different things." Kubernetes is more of an all-in-one framework for distributed systems, and its complexity stems from offering "a unified set of APIs and strong guarantees about cluster state."

    "Does Docker Swarm win in a few isolated benchmarks?" tweeted Hightower. "Yep. Can you really compare the two projects? Right now the answer is no."

    http://www.infoworld.com/article/304...t-so-fast.html
    Última edição por 5ms; 10-03-2016 às 20:28.

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