����������� �������� ����������� �������� Retail spark search adds MR flink Sigma Fuxi Kubernetes YARN Node ���������� �� ��������� ������� ��� ����������� Co-located�40% Seperated �10% 30% ������ Kubernetes Focus on long running service. Driving current state towards desired state with control loops YARN Focus on scheduling jobs ���������� ���� Kubernetes Container centric – bottom up. Container is is the primitive. Other primitives such as replicaset, deployment are built around containers. YARN Application centric: top down. Scheduling sequence: Queue -> user -> application -> container request

park l The goal is to bring native support for Spark to use Kubernetes as a cluster manager like YARN, or Mesos. l Spark 2.3 added native support for Kubernetes. l Spark 2.4 added support for client

包管理库以及跨本地开发环境进行发布与包管理的工具。对于有一些限制的 npm link 指令来说，Yalc 是一个更可靠的替代品。在使用多个包的时候 Yalc 特别好用，尤其是当有些包使用 yarn，而有些包使用 npm 的时候。它同样能帮助在发布包到远端之前进行本地的测试。根据我们的经验，Yalc 在配置多个包和加速前端以及其他 JavaScript 应用开发的工作流方面非常有价值。