Note: This post is part of the CCA Administrator Exam (CCA131) objectives series In the last post, we have seen how to install the Cloudera server manager and Cloudera Manager agents. In this post, we will begin installing the CDH cluster using the Cloudera Manager. You can point your browser to http://[cloudera manager host]:7180 and provide the default credentials of admin:admin. Accept the license on the next page to proceed. 1. Cloudera Manager Editions Cloudera Manager comes … [Read more...] about CCA 131 – Install CDH using Cloudera Manager
Hadoop
CCA 131 – Install Cloudera Manager server and agents
Note: This post is part of the CCA Administrator Exam (CCA131) objectives series Cloudera Installation Paths There are 3 paths in which the cloudera cluster can be installed and configured. PATH A - Automated Installation PATH B - Using Cloudera Manager with local Parcel/Packages PATH C - Manual Installation using tarballs Cloudera installation Phases Whichever installation path you choose, the below 6 phases of installation has to be completed in order to complete the CDH … [Read more...] about CCA 131 – Install Cloudera Manager server and agents
CCA 131 – Perform OS-level configuration for Hadoop installation
Note: This post is part of the CCA Administrator Exam (CCA131) objectives series In the last post we have setup the local CDH repository. But before we can perform any installation or even before setting up the repositoy you must perform few OS-level configurations. The OS-level configuration includes: Enabling NTP Configuring Network Names (hostnames/FQDNs) Disabling SELinux Disabling the Firewall We will cover each of the OS-level configurations in detail below. Make sure you … [Read more...] about CCA 131 – Perform OS-level configuration for Hadoop installation
Preparing for the CCA Administrator Exam (CCA131)
CCA 131 or Cloudera Administration Certification Exam is the most valued certification exam in the Hadoop world. The exam is practical oriented with sample scenarios to work upon. Number of Questions: 8–12 performance-based (hands-on) tasks on pre-configured Cloudera Enterprise cluster. Time Limit: 120 minutes Passing Score: 70% Language: English Price: USD $295 Exam Objectives Install Demonstrate an understanding of the installation process for Cloudera Manager, CDH, and the … [Read more...] about Preparing for the CCA Administrator Exam (CCA131)
CCA 131 – Set up a local CDH repository
Note: This post is part of the CCA Administrator Exam (CCA131) objectives series CDH can be installed using one of the following two methods: Installation using the operating system's package manager (e.g. yum) Installation using Cloudera Manager Note: Make sure you have followed the post "Perform OS-level configuration for Hadoop installation" before you proceed to configure the local CDH repository. This is necessary as we need to perform some task like disabling firewalld and … [Read more...] about CCA 131 – Set up a local CDH repository
HDPCA Practice Exam Questions and AWS Instance Setup Details
Before taking the HDPCA exam, you can get the feel of the exam by using the HDPCA practice exam on AWS cloud. The practice exam is very similar to the actual exam. You can perform 6 tasks for practice on this machine. The recommended instance configuration in AWS is m3.2xlarge which has 30 GB of memory and 8 vCPUs. You can opt for the spot instances if you are on a budget. Environment Details The details of the setup in the HDPCA practice exam AWS machine are as below: A five-node HDP … [Read more...] about HDPCA Practice Exam Questions and AWS Instance Setup Details
HDPCA Exam Objective – Configure HiveServer2 HA ( Part 2 – Configure HA )
Note: This is post is part of the HDPCA exam objective series Hive first started with HiveServer1. However, this version of the Hive server was not very stable. It sometimes suspended or blocked clients' connection quietly. Since version 11, Hive includes a new Hive server called HiveSever2 as an addition to HiveServer1. HiveServer2 is an enhanced Hive server designed for multiclient concurrency and improved authentication. HiveServer2 also supports Beeline as the alternative command-line … [Read more...] about HDPCA Exam Objective – Configure HiveServer2 HA ( Part 2 – Configure HA )
How to configure Capacity Scheduler Queues Using YARN Queue Manager
Note: This is post is part of the HDPCA exam objective series Capacity Scheduler is mainly designed for multitenancy, where multiple organizations collectively fund the cluster based on the computing needs. There is an added benefit that an organization can access any excess capacity not being used by others. This provides elasticity for the organizations in a cost-effective manner. In the previous post, we have seen installing and configuring capacity scheduler. The fundamental unit of … [Read more...] about How to configure Capacity Scheduler Queues Using YARN Queue Manager
How to Create HDFS policies in Ranger
Note: This is post is part of the HDPCA exam objective series Apache Ranger is an application that enables data architects to implement security policies on a big data ecosystem. The goal of this project is to provide a unified way for all Hadoop applications to adhere to the security guidelines that are defined. Here are some of the features of Apache Ranger: Centralized administration Fine grained authorization Standardized authorization Multiple authorization methods Centralized … [Read more...] about How to Create HDFS policies in Ranger
How to Configure Hive Authorization Using Apache Ranger
Note: This is post is part of the HDPCA exam objective series Apache Ranger is a framework for enabling, monitoring, and managing the comprehensive data security across the Hadoop platform. Ranger simply helps a Hadoop admin with various security management tasks. It provides a mechanism to manage the security from a single pane for various components. With Ranger, you can control fine-grained access to various components of the Hadoop ecosystem. Ranger has an Administration Portal you can … [Read more...] about How to Configure Hive Authorization Using Apache Ranger