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Branching and Tagging
Branching and Tagging Overview Iceberg table metadata maintains a snapshot log, which represents the changes applied to a table. Snapshots are fundamental in Iceberg as they are ... -
Object
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Hive Dialect Support
Features Usage Hive Dialect plugin aims to provide Hive Dialect support to Spark’s JDBC source. It will auto registered to Spark and applied to JDBC sources with url prefix of j... -
Install the Ambari Server
Follow the instructions in the section for the operating system that runs your installation host. RHEL/CentOS/Oracle Linux 7 SLES 12 Ubuntu 16 Ubuntu 18 Debian 9 Use a com... -
1. Getting Ready
This section describes the information and materials you should get ready to install a cluster using Ambari. Ambari provides an end-to-end management and monitoring solution for y... -
为 Ranger 配置数据库实例
MySQL、Oracle、PostgreSQL 或 Amazon RDS 数据库实例必须正在运行并且可供 Ranger 使用。 Ranger 安装将创建两个新用户（默认名称：rangeradmin 和 rangerlogger ）和两个新数据库（默认名称：ranger 和 ranger_audit ）。 从以下选项中选择： 为 Ranger 配置 ... -
安装、启动和测试
下一步 安装进度显示在屏幕上。 Ambari 安装、启动并对每个组件运行简单的测试。进程的总体状态显示在屏幕顶部的进度栏中，逐个主机的状态显示在主要部分中。在此过程中请勿刷新浏览器。刷新浏览器可能会中断进度指示器。 要查看有关每个主机已完成哪些任务的具体信息，请单击相应主机的 Message 列中的链接。在 Tasks 弹出窗口中，单击单个任务以查... -
Prepare the Environment
To deploy your Hortonworks stack using Ambari, you need to prepare your deployment environment: Set Up Password-less SSH Set Up Service User Accounts Enable NTP on the Cluster... -
Types of Classes
JDO provides a means of transparent persistence of objects of user defined classes. With JDO there are actually 3 types of classes. Persistence Capable classes are classes whose... -
Math
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