Example 2

In this example 10-node cluster, each node has the following characteristics:

  • 16 cores
  • 32 GB memory
  • 4 drives

This hardware has a small number of drives; with limited disk I/O capacity, run a conservative number of map and reduce slots:

  • Not more than 2 or 3 reduce slots
  • Not more than 8 map slots
  • Give the leftover 6G memory to MapR-FS