| name | data type | description |
|---|---|---|
| roleNamesToMigrate | array of string | The list of role names to migrate. |
| destinationHostId | string | The ID of the host to which the roles should be migrated. |
| clearStaleRoleData | boolean | Delete existing stale role data, if any. For example, when migrating a NameNode, if the destination host has stale data in the NameNode data directories (possibly because a NameNode role was previously located there), this stale data will be deleted before migrating the role. |
Example
{
"roleNamesToMigrate" : [ "...", "..." ],
"destinationHostId" : "...",
"clearStaleRoleData" : true
}