|
所在平台: Udemy |
课程主页: https://www.udemy.com/course/real-world-hadoop-upgrade-cloudera-and-hadoop-hands-on/
课程评论：没有评论
本课程是“Real World Vagrant - Automate a Cloudera Manager Build - Toyin Akin”课程的进阶内容。 **课程概述：** 本课程专注于**升级 Cloudera Manager 和 Hadoop 集群**。通过升级，您可以利用最新产品版本的新功能，同时保留现有数据和设置。课程将指导您完成升级过程中可能涉及的任务，包括： * **安装数据库：** 了解 Cloudera Manager 5 中 Host Monitor 和 Service Monitor 角色的内部数据库，以及是否需要配置外部数据库。 * **升级 Cloudera Manager Server：** 掌握升级 Cloudera Manager Server 的步骤。 * **升级 Cloudera Manager Agent：** 学习使用升级向导或手动安装 Agent 包来升级 Agent。 * **升级 CDH：** 了解如何升级 CDH（Cloudera Distribution Hadoop）以充分利用最新功能，同时 Cloudera Manager 5 可以同时管理 CDH 4 和 CDH 5。 **课程背景与建议：** 本课程基于 Vagrant 虚拟化环境，允许您在本地练习和销毁虚拟环境，在实际服务器/虚拟机上部署前进行充分实践。 **课程学习路径建议：** 1. **初学者（Hadoop 生态系统基础）：** * Udemy 课程: *Big Data Intro for IT Administrators, Devs and Consultants* 2. **Vagrant 实践（构建虚拟环境）：** * Udemy 课程: *Real World Vagrant For Distributed Computing* 3. **部署 Cloudera Manager 及 Agent：** * Udemy 课程: *Real World Vagrant - Automate a Cloudera Manager Build* 4. **部署 Hadoop 服务：** * Udemy 课程: *Real World Hadoop - Deploying Hadoop with Cloudera Manager* (关注 Master/Slave 服务放置逻辑) 5. **HDFS 命令实践：** * Udemy 课程: *Real World Hadoop - Hands on Enterprise Distributed Storage* 6. **通过 Python 自动化部署（进阶）：** * Udemy 课程: *Real World Hadoop - Automating Hadoop install with Python!* 7. **本课程（升级）：** * **Udemy 课程: *Real World Hadoop - Upgrade Cloudera and Hadoop hands on*** **学习目标：** 掌握在已有 Hadoop 集群的基础上，安全有效地升级 Cloudera Manager 和 Hadoop 服务（CDH）的实践操作。
Note: This course is built on top of the "Real World Vagrant - Automate a Cloudera Manager Build - Toyin Akin" course.Upgrading Cloudera Manager enables new features of the latest product versions while preserving existing data and settings. Some new settings are added, and some additional steps may be required, but no existing configuration is removed. Upgrading Cloudera ManagerThe process for upgrading Cloudera Manager varies depending on the starting point. Categories of tasks to be completed include the following: Install databases required for the release. In Cloudera Manager 5, the Host Monitor and Service Monitor roles use an internal database that provides greater capacity and flexibility. You do not need to configure an external database for these roles. Upgrade the Cloudera Manager Server. Upgrade the Cloudera Manager Agent. You can use an upgrade wizard that is invoked when you connect to the Admin Console or manually install the Cloudera Manager Agent packages. Upgrading CDHCloudera Manager 5 can manage both CDH 4 and CDH 5. To benefit from the most current CDH features, you must upgrade CDH.. Here I present a curriculum as to the current state of my Cloudera courses. My Hadoop courses are based on Vagrant so that you can practice and destroy your virtual environment before applying the installation onto real servers/VMs. . For those with little or no knowledge of the Hadoop eco system Udemy course: Big Data Intro for IT Administrators, Devs and Consultants . I would first practice with Vagrant so that you can carve out a virtual environment on your local desktop. You don't want to corrupt your physical servers if you do not understand the steps or make a mistake. Udemy course: Real World Vagrant For Distributed Computing . I would then, on the virtual servers, deploy Cloudera Manager plus agents. Agents are the guys that will sit on all the slave nodes ready to deploy your Hadoop services Udemy course: Real World Vagrant - Automate a Cloudera Manager Build . Then deploy the Hadoop services across your cluster (via the installed Cloudera Manager in the previous step). We look at the logic regarding the placement of master and slave services. Udemy course: Real World Hadoop - Deploying Hadoop with Cloudera Manager . If you want to play around with HDFS commands (Hands on distributed file manipulation). Udemy course: Real World Hadoop - Hands on Enterprise Distributed Storage. . You can also automate the deployment of the Hadoop services via Python (using the Cloudera Manager Python API). But this is an advanced step and thus I would make sure that you understand how to manually deploy the Hadoop services first. Udemy course: Real World Hadoop - Automating Hadoop install with Python! . There is also the upgrade step. Once you have a running cluster, how do you upgrade to a newer hadoop cluster (Both for Cloudera Manager and the Hadoop Services). Udemy course: Real World Hadoop - Upgrade Cloudera and Hadoop hands on
