Operator Pattern - Custom Resource & Controller Desired State Actual State Compare & Make Changes 扩展 Kubernetes 的几种方式 PingCAP.com Common ways to extend Kubernetes - Custom Resource - TidbCluster Backup/Restore - Custom Controller - Scheduler Extender (optional) - Admission Webhook (optional) - …Scheduler framework, Aggregated APIServer PingCAP.com Custom Resource PingCAP.com Custom Controller Desired may change or deny it. TiDB Operator 实现 PingCAP.com TiDB Operator Implementation - The tidb-controller-manager - Initialization - Watch objects (Tidb Cluster CR) - Reconcilation - on change of watched

application-specific controller that extends the Kubernetes API to create, configure and manage instances of complex stateful applications on behalf of a Kubernetes user. operator 是特殊的 controller，用来管理复杂的分布式应用 应用 ü custom resource definition(CRD) ü custom controller Operator 是什么 • Kubernetes 中一切都可视为资源 • 默认资源类型：如 Pod、Service、Volume 等 • Kubernetes 1.7 之后增加了 CRD 自定义资源 • 二次开发扩展 Kubernetes API CRD 的基本原理 API 消除差别 TestCluster app=test app=test 申请扩容 期望副本数：3 当前副本数：1 VS app=test 增加2个副本 当前副本数：3 Controller 的基本原理 1. 背景介绍 2. Operator 的基本原理 3. MySQL Operator 设计实践 4. 小结 MySQL 容器化目标 • 快速部署 MySQL 主从集群

objects View and edit table data Execute SQL queries Select in a main menu Connection > Manual > Custom Select database Set connection options and driver properties and press button Connect Application your credentials or any user data. You could try to connect to some of your databases using the Custom connection wizard. Warning: it is not secure to open direct access to your database so do not use Have fun! Demo Server Demo Server - https://demo.cloudbeaver.io Pre-configured databases access: Custom connections Security CloudBeaver User Guide 23.1. Page 12 of 140. 1. 2. Initial server configuration

database objects View and edit table data Execute SQL queries 1. Select Connection > Manual > Custom in a main menu 2. Select database 3. Set connection options and driver properties and press Connect saving credentials for non-admin users. Server configuration Server information Configuration Custom connections Navigator simple view Services AWS Authentication settings Security Save credentials in the list to open the creation form (You can also select database type there). You can use the Custom tab to create a connection for the specified database or driver. You can search databases by name

objects View and edit table data Execute SQL queries Select in a main menu Connection > Manual > Custom Select database Set connection options and driver properties and press button Connect Application your credentials or any user data. You could try to connect to some of your databases using the Custom connection wizard. Warning: it is not secure to open direct access to your database so do not use Have fun! Demo Server Demo Server - https://demo.cloudbeaver.io Pre-configured databases access: Custom connections Security CloudBeaver User Guide 23.2. Page 13 of 182. Initial server configuration

object View and edit table data Execute SQL query Select in a main menu Connection > Manual > Custom Select database Set connection options and driver properties and press button Connect Application Execute SQL query CloudBeaver User Guide 23.3. Page 13 of 252. Pre-configured databases access: Custom connections Security We host a demo server where you can see what CloudBeaver looks in real life your credentials or any user data. You could try to connect to some of your databases using the Custom connection wizard. Warning: it is not secure to open direct access to your database so do not use

容器应用对基础设施透明 Greenplum Operator Kubernetes Operator ● 自定义资源类型 ○ Custom Resource Definition (CRD) ○ 和内置资源用法一致 ● 自定义控制器 ○ Custom Controller (Operator) ○ 根据资源状态封装对资源的自定义操作 Greenplum CRD $ kubectl create

everywhere to select a PostgreSQL user name to connect as. 3 Chapter 1. Getting Started • Writing a custom application, using one of the several available language bindings. These possibilities are discussed names as the built-in operators mentioned above. For example, if you define a “+” operator for some custom data type it will have the same precedence as the built-in “+” operator, no matter what yours does needed for client application development as well as for server-side program development, such as custom functions or data types written in C. (Prior to PostgreSQL 8.0, a separate gmake install-all-headers

Vertical and Horizontal sharding support – Multiple sharding schemes, with the ability to plug-in custom ones Comparisons to other storage options The following sections compare Vitess to two common alternatives including master failover and data backups. 45 Vanilla MySQL Vitess A MySQL cluster can have custom database configurations for different workloads, like a master database for writes, fast read-only not usually support transactions. Vitess supports transactions. NoSQL solutions have custom APIs, leading to custom architectures, applications, and tools. Vitess adds very little variance to MySQL, a

Choosing the Table Distribution Policy 562 Declaring Distribution Keys 563 Custom Distribution Key Hash Functions 564 Example Custom Hash Operator Class 564 Choosing the Table Storage Model 566 Heap Storage VMware by Broadcom 30 s3 Protocol Limitations 632 Using the gpcheckcloud Utility 632 Using a Custom Protocol 634 Handling Errors in External Table Data 634 Creating and Using External Web Tables Examples 733 Loading Data Using an External Table 734 Loading and Writing Non-HDFS Custom Data 734 Using a Custom Format 734 Importing and Exporting Fixed Width Data 735 Examples of Reading Fixed-Width