互联网企业的发展模式 Web3? So-called Web3 ？ Where is the Next Stage ★ Blockchain ★ Decentralized Ledger Storage: MPT (Merkle Patricia Tree) ★ K-V database ★ Smart Contract ★ Serverless The Weapons Web3 Utilizes general cases • Limites of On-chain VM computation • Limites of MPT • Limites of K-V db Problems of Web3: Technical Viewpoint Financial Model: Account=>Balance ➔ Relatively closed dataset, linear increasement the closed data model has been at the end. A New Proposal: Open Data Application The Road to Open Web ➔ From the user side, it looks like just the traditional Internet app ➔ But everyone have the chance

Yes Yes Yes KVM Hyper Firecracker+ Firecracker- containerd No Yes Rust, Golang Yes No No KVM Amazon Nabla+runnc Yes No C, Golang Yes No No None IBM OCI Comparison kata- runtime runc runsc container

Project History Harbor Community Harbor Users and Partners (selected) x x Main Features 6 Web Portal • Based on open source Clarity • Image operation full capabilities • Batch operations Restful Users (GUI/API) Container Schedulers/Runtimes Consumers LDAP/Active Directory Supporting services Harbor Packaging Docker Kubernetes Cloud Foundry Deep dive Harbor through panel discussion

in mesh traffic ● Summary #IstioCon Istio Architecture Connect, secure, control, and observe services. #IstioCon Security Architecture #IstioCon Bookinfo architecture without service mesh ● Reviews-v1 calls ratings, black stars ● Reviews-v3 ○ calls ratings, red stars Initializing services 1) Deploy bookinfo services with istio sidecar without reviews-v2 2) Deploy bookinfo gateway 3) Deploy reviews-v2 kubectl label namespace default istio-injection=disabled/enabled ） Initializing services 1) Deploy bookinfo services with istio sidecar without reviews-v2 2) Deploy bookinfo gateway 3) Deploy reviews-v2

apply K8S API Спецификация ClickHouse on Kubernetes – components Shard 1 Replica 1 Zookeeper Services Zookeeper-0 Zookeeper-2 Zookeeper-1 Replica Service Load Balancer Service Shard 1 Replica процесс может занять некоторое время (не мгновенно). Схема отношений Kubernetes Pods, Volumes, Services Replication – нужен Zookeeper Можно использовать любой имеющийся ZK cluster Install Zookeeper:

data plane • Poor in scheduling algorithm • Iptables rules are difficult to debug IPVS mode • Services are organized in hash table • IPVS DNAT • conntrack/iptables SNAT • Pros • O(1) time complexity

© 2018 Percona. 38 Need Help ? Percona - MySQL, MariaDB, MongoDB, PostgreSQL Support and Services Will help you getting your MySQL log to Clickhouse Recommend Altinity for complete ClickHouse

oDebugging JavaScript Why are we here? How did NativeScript come to be? Swift/Obj-C Java .NET We ❤ Web. But… We need: • Better offline support • Access to all device APIs • Home screen availability discovery • … Hybrid "Promise" 100% Web 100% Nativ e Hybri d Reach Code/Skill Reuse Richness Premium experience Device APIs Best of both? Compromises. Mobile Web - PWA Hybrid Native “1st Gen” apps for iOS & Android o Use web skills o JS, CSS, XML-based markup o Write once, run everywhere o Share 100% code between iOS/Android o Share 80% code with web o Reuse popular plugins from NodeJS/iOS/Android

Analytics, ML App Python/Matlab/R Java/C/C++/Restful IoT Application Visualization Tool Grafana Web Based Management Tool 21,400+ 4,600+ 18,500+ 社区版开源 2019.07.12 集群版开源 2020.08.03 云原生版开源 2022.08.13 io/crates/tokio-cron-scheduler • MPMC Channel: https://crates.io/crates/flume • Web Service: • Framework: https://crates.io/crates/actix-web • OpenAPI：https://crates.io/crates/utoipa • Metrics: https://crates.io/crates/metrics

service() doGet() doPost() Get Request Post Request Response Response Web Server HttpServlet subclass 注意： 方法由 HttpServlet 的子类实现