MapR Control System (MCS)

MapR Control System (MCS) gives Hadoop administrators a single place for configuring, monitoring, and managing their clusters.


Two major features exposed by MCS that dramatically simplify administration of a cluster are:

  • MapR Heatmap™: Heatmaps give administrators an instant read on the health of a Hadoop cluster, providing easy-to-interpret icons representing the state of each node. Heatmaps can show the overall health of a cluster, or more detailed node properties such as CPU, disk, or memory utilization.
  • Job Metrics: MCS gives users a fine-grained view into performance of jobs that are currently, or have completed running in the cluster. The interface displays zoomable job histograms for more than 50 metrics, including job durations, job failures, and utilization. Users can easily drill down into a task-level view for a particular job to see what contributed to the overall performance, and even kill jobs that aren’t running properly.

In addition, MCS exposes many aspects of the MapR Data Platform for configuration and management, including:

  • Tables: MapR M7 Edition includes native support for NoSQL tables. MapR Control System allows administrators to view tables, create tables, add and modify column families, and view region splits.
  • Volumes: MapR Distribution allows users to logically divide available storage into units called volumes. User permissions and quotas can be applied on a per-volume basis, making volumes are a key enabler of multi-tenant clusters. In addition, data protection features like snapshots and mirrors are configured within MCS on a per-volume basis, allowing granular control over all data in a cluster.
  • NFS: MapR Distribution allows simplified data import and export with Network File System (NFS) protocol support. Administrators can view and modify NFS configuration within MCS, as well as configure and modify virtual IP addresses used for redundancy.
  • Alarms: MCS continuously monitors the status of each node in the Hadoop cluster, proactively raising alarms if issues like disk failures are found. Alarms are descriptive, indicating to administrators what action should be taken for remediation.