Install

Demonstrate an understanding of the installation process for Cloudera Manager, CDH, and the ecosystem projects.

• Set up a local CDH repository

• Perform OS-level configuration for Hadoop installation

• Install Cloudera Manager server and agents

• Install CDH using Cloudera Manager

• Add a new node to an existing cluster

• Add a service using Cloudera Manager

Configure

Perform basic and advanced configuration needed to effectively administer a Hadoop cluster

• Configure a service using Cloudera Manager

• Create an HDFS user's home directory

• Configure NameNode HA

• Configure ResourceManager HA

• Configure proxy for Hiveserver2/Impala

Manage

Maintain and modify the cluster to support day-to-day operations in the enterprise

• Rebalance the cluster

• Set up alerting for excessive disk fill

• Define and install a rack topology script

• Install new type of I/O compression library in cluster

• Revise YARN resource assignment based on user feedback

• Commission/decommission a node

Secure

Enable relevant services and configure the cluster to meet goals defined by security policy; demonstrate knowledge of basic security practices

• Configure HDFS ACLs

• Install and configure Sentry

• Configure Hue user authorization and authentication

• Enable/configure log and query redaction

• Create encrypted zones in HDFS

Test

Benchmark the cluster operational metrics, test system configuration for operation and efficiency

• Execute file system commands via HTTPFS

• Efficiently copy data within a cluster/between clusters

• Create/restore a snapshot of an HDFS directory

• Get/set ACLs for a file or directory structure

• Benchmark the cluster (I/O, CPU, network)

Troubleshoot

Demonstrate ability to find the root cause of a problem, optimize inefficient execution, and resolve resource contention scenarios

• Resolve errors/warnings in Cloudera Manager

• Resolve performance problems/errors in cluster operation

• Determine reason for application failure

• Configure the Fair Scheduler to resolve application delays