azureResizeHDI: Resize a HDInsight cluster role.
In Microsoft/AzureSMR: Manage and Interact with Azure Resources

Resize a HDInsight cluster role.

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azureResizeHDI(azureActiveContext, clustername, role = c("workernode",
  "headnode", "edgenode"), size = 2, mode = c("Sync", "Async"),
  subscriptionID, resourceGroup, verbose = FALSE)

`azureActiveContext`	A container used for caching variables used by `AzureSMR`, created by `createAzureContext()`
`clustername`	Cluster name, used for HDI and Spark clusters. See `azureCreateHDI()`
`role`	role type: 'worker', 'head' or 'edge'
`size`	Numeric: the number of nodes for this type of role
`mode`	Provisioning mode, "Sync" or "Async". Use "Async" to immediately return to R session after submission of request
`subscriptionID`	Subscription ID. This is obtained automatically by `azureAuthenticate()` when only a single subscriptionID is available via Active Directory
`resourceGroup`	Name of the resource group
`verbose`	If TRUE, prints verbose messages