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Comment: add link, fix typos, update default profiles for small, medium, and large

The Node Manager profiles allow you to manually scale your cluster as needed. These profile is an abstraction for the amount of resources a Node Manager advertises to the Resource Manager. These profiles are set in the Myriad configuration file, myriad-config-default.yml. Each profile is identified by zero, small, medium, and large with default CPU and memory parameters. During initial startup, the default profile is zero, that is, the cluster is launched with zero (0) cpu and zero (0) memory.  The cluster can be configured to start with an initial number of Node Managers. By default, Myriad requires at least 1 NodeManager instance with a medium profile. See Scaling Resources Dynamically and the Myriad Cluster API for information about scaling instance resources.

Note

During initial startup, Myriad launches one NodeManager instance with a profile of medium through the parameter, nmInstances, which is specified in the myriad-config-default.yml file.

"nmInstances": {

    "medium": 1

  },


The following default profiles are configurable. To change a profile, modify the Myriad configuration file, myriad-config-default.yml. 

Note

If you modify the Myriad configuration file after the initial build, you must build and deploy again for the changes to take affect.

Default profiles:

Code Block
"profiles": {
  "zero": {
    "cpu": "0",
    "mem": "0"
  },
  "small": {
    "cpu": "12",
    "mem": "11002048"
  },
  "medium": {
    "cpu": "24",
    "mem": "20484096"
  },
  "large": {
    "cpu": "410",
    "mem": "409612288"
  }
},