Note: This post is part of the CCA Administrator Exam (CCA131) objectives series To start with we have just installed few services like HDFS, YARN, and zookeeper in our CDH setup. The Cloudera Manager enables you to add any other service later on. As a part of the exam, you may be asked to add a new service to the CDH cluster. The process remains fairly simple for all the services. I have deleted the YARN service and will outline the steps to add the service below. Adding a new service … [Read more...] about CCA 131 – Add a service using Cloudera Manager
Hadoop
CCA 131 – Add a new node to an existing cluster
Note: This post is part of the CCA Administrator Exam (CCA131) objectives series Cloudera Manager makes it very simple to add and remove hosts in a cluster. All host management operations in Cloudera Manager are done from the Hosts screen. In this section, we will go through the steps of adding a new host to the cluster. There are 2 ways to add a new host using Cloudera Manager: 1. Let Cloudera Manager install the Cloudera Manager agent and other parcels etc. 2. Manually install the … [Read more...] about CCA 131 – Add a new node to an existing cluster
CCA 131 – Install CDH using Cloudera Manager
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
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