ADM 203 - Cluster Maintenance

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About this Course

Learn cluster administration with real-world system administrator concepts and practices, including planning, installation and configuration, load balancing and tuning diagnosing deployment issues, performance, setting up a Hadoop cluster with direct access NFS, snapshots, monitoring cluster health, resolving hardware issues and troubleshooting job errors.

This section teaches you how to monitor the cluster’s health, manage cluster resources, and perform ongoing maintenance and troubleshooting to keep the cluster in top working order.


  • Completion of ESS 100, ESS 101, ADM 200, ADM 201, ADM 202
  • Basic Hadoop knowledge and intermediate linux knowledge
  • Experience using a text editor such as vi
  • Terminal program installed; familiarity with command-line options such as mv, cp, ssh, grep, cd, and useradd


The courses in this curriculum are part of the preparation for the MapR Certified Cluster Administrator (MCCA) certification exam.


Lesson 11 - Monitor and Manage the Cluster

  • Monitor the Cluster
  • Configure and Respond to Alarms
  • Lab 11.2: Configure Alerts
  • Balance Cluster Resources
  • Manage Logs and Snapshots
  • Lab 11.4: Manage Logs and Snapshots
  • Add and Remove Services
  • Lab 11.5: Add and Remove Services

Lesson 12 - Disk and Node Maintenance

  • Replace a Failed Disk
  • Lab 12.1: Replace a Disk
  • Add and Remove Disks
  • Perform Node Maintenance
  • Add Nodes
  • Lab 12.4: Add a Node to a Cluster

Lesson 13 - Troubleshooting

  • Troubleshooting Different Problem Types
  • Lab 13.1: Troubleshooting
  • Use Support Utilities
  • Lab 13.2: Collect Logs for Support