Node Operator: Kubernetes Node Management Made Simple 陈俊(Joe), Ant Financial Agenda • Background and Motivation • Introduction of Operators • Node-Operator • Advanced Topic: Teardown Cluster fast and convenient • Add & delete Node at any time • Upgrade Master & Node Components reliably • Canary Rollout • Master & Node Component Versions Management Motivation: Work Order Order Deployment Worker Order • Upgrade Nodes Versions • Upgrade Node 10.10.10.1 • Upgrade docker • Upgrade kubelet • Upgrade Node 10.10.10.2 • Upgrade docker • Upgrade kubelet …. Motivation: Work Order

1 Table of Contents Preface The Node.js Handbook Conclusion 2 Preface The Node.js Handbook follows the 80/20 rule: learn in 20% of the time the 80% of a topic. In particular, the goal is to get get you up to speed quickly with Node.js. This book is written by Flavio. I publish programming tutorials on my blog flaviocopes.com and I organize a yearly bootcamp at bootcamp.dev. You can reach me The Node.js Handbook 1. Introduction to Node.js 1.1. Node.js has a vast number of libraries 1.2. An example Node.js application 1.3. Node.js frameworks and tools 2. A brief history of Node.js 2

Node.js - the core Mark Volkmann mark@ociweb.com Object Computing, Inc. April 21, 2012 Node.js Overview ... “Node's goal is to provide an easy way to build scalable network programs.” http://nodejs building “servers” “The official name of Node is "Node". The unofficial name is "Node.js" to disambiguate it from other nodes.” https://github.com/joyent/node/wiki/FAQ Runs on top of Chrome V8 (see next Joyent 2 passed control of the project to Isaac Schlueter on 1/30/12 a cartoon from substack Node.js ... Overview Event-based rather than thread-based; can use multiple processes Assumes most time

Red Hat build of Node.js 18 Release Notes for Node.js 18 For use with Node.js 18 LTS Last Updated: 2023-01-31 Red Hat build of Node.js 18 Release Notes for Node.js 18 For use with Node.js 18 LTS Legal the European Union and other countries. Node.js ® is an official trademark of Joyent. Red Hat is not formally related to or endorsed by the official Joyent Node.js open source or commercial project. The of their respective owners. Abstract This Release Note contains important information related to Node.js 18 LTS. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Node.js* Client & Web Bridge Ready for ROS* 2.0 Minggang Wang September 30 2018 Agenda ● Who We Are ● Why Use Node.js & Web in Robotics ● Thinking in “ROS 2.0 + Web” ● What We Have Done for “ROS + Web” ● The Design of rclnodejs & ros2-web-bridge ● List of Features ● Performance Comparison: Node.js, C++ & Python ● Video Demo ● Intel Robot ● Contacts & Resource Links 2 3 Who we are package system in the world ● Easy deployment & debugging ● Naturally for web interface Why Use Node.js & Web in Robotics Benchmark Link NPM* is the largest package system in the world (>600k) ● Web

Master Redundancy 163 The Segments 164 Segment Redundancy 164 Segment Failover and Recovery 165 Example Segment Host Hardware Stack 165 Example Segment Disk Layout 166 The Interconnect 166 Interconnect directory location on the master 192 Creating Data Storage Areas on Segment Hosts 193 To create the data directory locations on all segment hosts 193 Next Steps 193 Validating Your Systems 193 Validating Standby Master iptables Rules 234 VMware Greenplum v6.17 Documentation VMware, Inc. 8 Example Segment Host iptables Rules 235 Installation Management Utilities 235 Installation Management Utilities

Support distributed algorithms - Achieve high performance for both multi-GPU, NUMA, and multi-node execution float dot_product(vector& x, vector& y) { auto z = send and receive calls Node 0 Node 1 Send MSG(1) Receive MSG(0) Communication Mechanisms- Message Passing - processes issue matching send and receive calls Node 0 Node 1 Send MSG(1) Receive now in // `recv_values`- Message Passing - processes issue matching send and receive calls Node 0 Node 1 Send MSG(1) Receive MSG(0) // Calculate data auto values = algorithm(1.0f, 3,

Master Redundancy 229 The Segments 230 Segment Redundancy 230 Segment Failover and Recovery 231 Example Segment Host Hardware Stack 231 Example Segment Disk Layout 232 The Interconnect 232 VMware directory location on the master 259 Creating Data Storage Areas on Segment Hosts 259 To create the data directory locations on all segment hosts 259 Next Steps 260 Validating Your Systems 260 Validating iptables 299 Example iptables Rules 300 Example Master and Standby Master iptables Rules 301 Example Segment Host iptables Rules 301 Installation Management Utilities 302 Installation Management Utilities

Master Redundancy 237 The Segments 237 Segment Redundancy 238 Segment Failover and Recovery 238 Example Segment Host Hardware Stack 239 Example Segment Disk Layout 239 The Interconnect 240 Interconnect directory location on the master 267 Creating Data Storage Areas on Segment Hosts 267 To create the data directory locations on all segment hosts 267 Next Steps 268 Validating Your Systems 268 Validating iptables 308 Example iptables Rules 309 Example Master and Standby Master iptables Rules 310 Example Segment Host iptables Rules 311 Installation Management Utilities 311 Installation Management Utilities

Type 297 Compute 297 Memory 298 Network 298 Storage 298 GCP Recommendations 298 Master and Segment Instances 299 Azure 299 Virtual Machine Type 299 Compute 299 Memory 299 Network 300 Storage Redundancy 305 About the Greenplum Segments 305 Segment Redundancy 306 Segment Failover and Recovery 306 Example Segment Host Hardware Stack 307 Example Segment Disk Layout 308 About the Greenplum Interconnect Parallel Data Loading 326 About Redundancy and Failover in Greenplum Database 327 About Segment Mirroring 327 Segment Failover and Recovery 328 About Master Mirroring 328 About Interconnect Redundancy