Лицензия: Apache 2.0, Распространяется как Docker image ClickHouse cluster resources kubectl apply K8S API Спецификация ClickHouse on Kubernetes – components Shard 1 Replica 1 Zookeeper Services Services Zookeeper-0 Zookeeper-2 Zookeeper-1 Replica Service Load Balancer Service Shard 1 Replica 2 Shard 2 Replica 1 Shard 2 Replica 2 Replica Service Replica Service Replica Service User Services Replication – нужен Zookeeper Можно использовать любой имеющийся ZK cluster Install Zookeeper: manifests/zookeeper/quick-start-persistent-volume/zookeeper-1-node-create.sh Replication apiVersion:

идеальная. Репликация требует ZooKeeper 12 ZooKeeper — отдельный от ClickHouse компонент, написанный на Java, требующий тщательной настройки и отдельных серверов. ZooKeeper уходит! 13 1. Clickhouse-keeper Clickhouse-keeper — 100% совместимый с ZooKeeper по протоколу и модели данных • Compressed logs and snapshots • No issues with zxid overflow • No issues with large packets • Better memory usage • No issues

is too big(max_ast_elements, max_expanded_ast_elements) ● Mutations are stuck (KILL MUTATION) ● Zookeeper OOM because of SQL length (Put ids in a Memory Engine temp table) Final Product ● Only one

Native Modules • UI Thread vs JS Thread • Angular/Vue/Vanilla vs React • Progress vs Facebook • Apache 2.0 vs BSD+ JavaScript-Driven Native • Share code • Reuse existing skills/teams • Reuse existing source developers NativeScript CLI docs.nativescript.org Xcode, Xcode CLI tools, iOS SDK JDK, Apache Ant, Android SDK $ npm install –g nativescript NativeScript Sidekick o Tool for Mac/Windows/Linux

Integrated into enterprise products: VIC and PKS GitHub Repo: https://github.com/go harbor/harbor/ Apache 2.0 license An open source trusted cloud native registry project HARBOR More integrations in

Overview Part 04 CppCon 2019  CppCon 2020 • Announced at CppCon 2019 • github.com/microsoft/STL • Apache License v2.0 with LLVM Exception • Implemented ~50 C++20 features • Majority from our amazing contributors