diff --git a/specification/hdinsight/resource-manager/Microsoft.HDInsight/preview/2015-03-01-preview/cluster.json b/specification/hdinsight/resource-manager/Microsoft.HDInsight/preview/2015-03-01-preview/cluster.json
index 263fc59b3384..ed54bb3b793d 100644
--- a/specification/hdinsight/resource-manager/Microsoft.HDInsight/preview/2015-03-01-preview/cluster.json
+++ b/specification/hdinsight/resource-manager/Microsoft.HDInsight/preview/2015-03-01-preview/cluster.json
@@ -56,6 +56,9 @@
           },
           "Create Hadoop cluster with Azure Data Lake Storage Gen 2": {
             "$ref": "./examples/CreateLinuxHadoopAdlsGen2.json"
+          },
+          "Create HDInsight cluster with Autoscale configuration": {
+            "$ref": "./examples/CreateHDInsightClusterWithAutoscaleConfig.json"
           }
         },
         "parameters": [
@@ -605,6 +608,90 @@
         }
       }
     },
+    "AutoscaleTimeAndCapacity": {
+      "properties": {
+       "time": {
+          "type": "string",
+          "description": "24-hour time in the form xx:xx"
+        },
+        "minInstanceCount": {
+          "type": "integer",
+          "format": "int32",
+          "description": "The minimum instance count of the cluster"
+        },
+        "maxInstanceCount": {
+          "type": "integer",
+          "format": "int32",
+          "description": "The maximum instance count of the cluster"
+        }
+      },
+      "description": "Time and capacity request parameters"
+    },
+    "AutoscaleSchedule": {
+      "properties": {
+        "days": {
+          "type": "array",
+          "items": {
+            "type": "string",
+            "enum": [ "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday" ],
+            "x-ms-enum": {
+              "name": "DaysOfWeek",
+              "modelAsString": false
+            }
+          },
+          "description": "Days of the week for a schedule-based autoscale rule"
+        },
+        "timeAndCapacity": {
+          "$ref": "#/definitions/AutoscaleTimeAndCapacity",
+          "description": "Time and capacity for a schedule-based autoscale rule"
+        }
+      },
+      "description": "Parameters for a schedule-based autoscale rule, consisting of an array of days + a time and capacity"
+    },
+    "AutoscaleCapacity": {
+      "properties": {
+        "minInstanceCount": {
+          "type": "integer",
+          "format": "int32",
+          "description": "The minimum instance count of the cluster"
+        },
+        "maxInstanceCount": {
+          "type": "integer",
+          "format": "int32",
+          "description": "The maximum instance count of the cluster"
+        }
+      },
+      "description": "The load-based autoscale request parameters"
+    },
+    "AutoscaleRecurrence": {
+      "properties": {
+        "timeZone": {
+          "type": "string",
+          "description": "The time zone for the autoscale schedule times"
+        },
+        "schedule": {
+          "type": "array",
+          "items": {
+            "$ref": "#/definitions/AutoscaleSchedule"
+          },
+          "description": "Array of schedule-based autoscale rules"
+        }
+      },
+      "description": "Schedule-based autoscale request parameters"
+    },
+    "Autoscale": {
+      "properties": {
+        "capacity": {
+          "$ref": "#/definitions/AutoscaleCapacity",
+          "description": "Parameters for load-based autoscale"
+        },
+        "recurrence": {
+          "$ref": "#/definitions/AutoscaleRecurrence",
+          "description": "Parameters for schedule-based autoscale"
+        }
+      },
+      "description": "The autoscale request parameters"
+    },
     "HardwareProfile": {
       "properties": {
         "vmSize": {
@@ -710,6 +797,11 @@
           "format": "int32",
           "description": "The instance count of the cluster."
         },
+        "autoscale": {
+          "$ref": "#/definitions/Autoscale",
+          "x-ms-client-name": "autoscaleConfiguration",
+          "description": "The autoscale configurations."
+        },
         "hardwareProfile": {
           "$ref": "#/definitions/HardwareProfile",
           "description": "The hardware profile."
diff --git a/specification/hdinsight/resource-manager/Microsoft.HDInsight/preview/2015-03-01-preview/examples/CreateHDInsightClusterWithAutoscaleConfig.json b/specification/hdinsight/resource-manager/Microsoft.HDInsight/preview/2015-03-01-preview/examples/CreateHDInsightClusterWithAutoscaleConfig.json
new file mode 100644
index 000000000000..bd255b6f85cb
--- /dev/null
+++ b/specification/hdinsight/resource-manager/Microsoft.HDInsight/preview/2015-03-01-preview/examples/CreateHDInsightClusterWithAutoscaleConfig.json
@@ -0,0 +1,123 @@
+{
+    "parameters": {
+        "clusterName": "cluster1",
+        "resourceGroupName": "rg1",
+        "api-version": "2015-03-01-preview",
+        "subscriptionId": "subid",
+        "parameters": {
+            "properties": {
+                "clusterVersion": "3.6",
+                "osType": "Linux",
+                "tier": "Standard",
+                "clusterDefinition": {
+                    "kind": "hadoop",
+                    "componentVersion": {
+                        "Hadoop": "2.7"
+                    },
+                    "configurations": {
+                        "gateway": {
+                            "restAuthCredential.isEnabled": true,
+                            "restAuthCredential.username": "admin",
+                            "restAuthCredential.password": "**********"
+                        }
+                    }
+                },
+                "storageProfile": {
+                    "storageaccounts": [
+                        {
+                            "name": "mystorage.blob.core.windows.net",
+                            "isDefault": true,
+                            "container": "hdinsight-autoscale-tes-2019-06-18t05-49-16-591z",
+                            "key": "storagekey"
+                        }
+                    ]
+                },
+                "computeProfile": {
+                    "roles": [
+                        {
+                            "autoscale": {
+                                "capacity": null,
+                                "recurrence": {
+                                    "timeZone": "China Standard Time",
+                                    "schedule": [
+                                        {
+                                            "days": [
+                                                "Monday",
+                                                "Tuesday",
+                                                "Wednesday",
+                                                "Thursday",
+                                                "Friday"
+                                            ],
+                                            "timeAndCapacity": {
+                                                "time": "09:00",
+                                                "minInstanceCount": 3,
+                                                "maxInstanceCount": 3
+                                            }
+                                        },
+                                        {
+                                            "days": [
+                                                "Monday",
+                                                "Tuesday",
+                                                "Wednesday",
+                                                "Thursday",
+                                                "Friday"
+                                            ],
+                                            "timeAndCapacity": {
+                                                "time": "18:00",
+                                                "minInstanceCount": 6,
+                                                "maxInstanceCount": 6
+                                            }
+                                        },
+                                        {
+                                            "days": [
+                                                "Saturday",
+                                                "Sunday"
+                                            ],
+                                            "timeAndCapacity": {
+                                                "time": "09:00",
+                                                "minInstanceCount": 2,
+                                                "maxInstanceCount": 2
+                                            }
+                                        },
+                                        {
+                                            "days": [
+                                                "Saturday",
+                                                "Sunday"
+                                            ],
+                                            "timeAndCapacity": {
+                                                "time": "18:00",
+                                                "minInstanceCount": 4,
+                                                "maxInstanceCount": 4
+                                            }
+                                        }
+                                    ]
+                                }
+                            },
+                            "name": "workernode",
+                            "targetInstanceCount": 4,
+                            "hardwareProfile": {
+                                "vmSize": "Standard_D4_V2"
+                            },
+                            "osProfile": {
+                                "linuxOperatingSystemProfile": {
+                                    "username": "sshuser",
+                                    "password": "**********"
+                                }
+                            },
+                            "virtualNetworkProfile": null,
+                            "scriptActions": [],
+                            "dataDisksGroups": null
+                        }
+                    ]
+                }
+            }
+        }
+    },
+    "responses": {
+        "200": {
+            "headers": {
+                "location": "https://management.azure.com/subscriptions/subid/providers/Microsoft.HDInsight/pathToOperationResult"
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/specification/hdinsight/resource-manager/Microsoft.HDInsight/preview/2015-03-01-preview/examples/HDI_Clusters_UpdateGatewaySettings_Enable.json b/specification/hdinsight/resource-manager/Microsoft.HDInsight/preview/2015-03-01-preview/examples/HDI_Clusters_UpdateGatewaySettings_Enable.json
index da62bfa19376..d29d32c8b776 100644
--- a/specification/hdinsight/resource-manager/Microsoft.HDInsight/preview/2015-03-01-preview/examples/HDI_Clusters_UpdateGatewaySettings_Enable.json
+++ b/specification/hdinsight/resource-manager/Microsoft.HDInsight/preview/2015-03-01-preview/examples/HDI_Clusters_UpdateGatewaySettings_Enable.json
@@ -15,6 +15,11 @@
       "headers": {
         "location": "https://management.azure.com/subscriptions/subid/providers/Microsoft.HDInsight/pathToOperationResult"
       }
+    },
+    "200": {
+        "headers": {
+            "location": "https://management.azure.com/subscriptions/subid/providers/Microsoft.HDInsight/pathToOperationResult"
+        }
     }
   }
 }
diff --git a/specification/hdinsight/resource-manager/Microsoft.HDInsight/stable/2018-06-01-preview/cluster.json b/specification/hdinsight/resource-manager/Microsoft.HDInsight/stable/2018-06-01-preview/cluster.json
index fc18241a07fa..853c0ca854db 100644
--- a/specification/hdinsight/resource-manager/Microsoft.HDInsight/stable/2018-06-01-preview/cluster.json
+++ b/specification/hdinsight/resource-manager/Microsoft.HDInsight/stable/2018-06-01-preview/cluster.json
@@ -56,6 +56,9 @@
           },
           "Create Hadoop cluster with Azure Data Lake Storage Gen 2": {
             "$ref": "./examples/CreateLinuxHadoopAdlsGen2.json"
+          },
+          "Create HDInsight cluster with Autoscale configuration": {
+            "$ref": "./examples/CreateHDInsightClusterWithAutoscaleConfig.json"
           }
         },
         "parameters": [
@@ -605,6 +608,90 @@
         }
       }
     },
+    "AutoscaleTimeAndCapacity": {
+      "properties": {
+       "time": {
+          "type": "string",
+          "description": "24-hour time in the form xx:xx"
+        },
+        "minInstanceCount": {
+          "type": "integer",
+          "format": "int32",
+          "description": "The minimum instance count of the cluster"
+        },
+        "maxInstanceCount": {
+          "type": "integer",
+          "format": "int32",
+          "description": "The maximum instance count of the cluster"
+        }
+      },
+      "description": "Time and capacity request parameters"
+    },
+    "AutoscaleSchedule": {
+      "properties": {
+        "days": {
+          "type": "array",
+          "items": {
+            "type": "string",
+            "enum": [ "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday", "Sunday" ],
+            "x-ms-enum": {
+              "name": "DaysOfWeek",
+              "modelAsString": false
+            }
+          },
+          "description": "Days of the week for a schedule-based autoscale rule"
+        },
+        "timeAndCapacity": {
+          "$ref": "#/definitions/AutoscaleTimeAndCapacity",
+          "description": "Time and capacity for a schedule-based autoscale rule"
+        }
+      },
+      "description": "Parameters for a schedule-based autoscale rule, consisting of an array of days + a time and capacity"
+    },
+    "AutoscaleCapacity": {
+      "properties": {
+        "minInstanceCount": {
+          "type": "integer",
+          "format": "int32",
+          "description": "The minimum instance count of the cluster"
+        },
+        "maxInstanceCount": {
+          "type": "integer",
+          "format": "int32",
+          "description": "The maximum instance count of the cluster"
+        }
+      },
+      "description": "The load-based autoscale request parameters"
+    },
+    "AutoscaleRecurrence": {
+      "properties": {
+        "timeZone": {
+          "type": "string",
+          "description": "The time zone for the autoscale schedule times"
+        },
+        "schedule": {
+          "type": "array",
+          "items": {
+            "$ref": "#/definitions/AutoscaleSchedule"
+          },
+          "description": "Array of schedule-based autoscale rules"
+        }
+      },
+      "description": "Schedule-based autoscale request parameters"
+    },
+    "Autoscale": {
+      "properties": {
+        "capacity": {
+          "$ref": "#/definitions/AutoscaleCapacity",
+          "description": "Parameters for load-based autoscale"
+        },
+        "recurrence": {
+          "$ref": "#/definitions/AutoscaleRecurrence",
+          "description": "Parameters for schedule-based autoscale"
+        }
+      },
+      "description": "The autoscale request parameters"
+    },
     "HardwareProfile": {
       "properties": {
         "vmSize": {
@@ -710,6 +797,11 @@
           "format": "int32",
           "description": "The instance count of the cluster."
         },
+        "autoscale": {
+          "$ref": "#/definitions/Autoscale",
+          "x-ms-client-name": "autoscaleConfiguration",
+          "description": "The autoscale configurations."
+        },
         "hardwareProfile": {
           "$ref": "#/definitions/HardwareProfile",
           "description": "The hardware profile."
diff --git a/specification/hdinsight/resource-manager/Microsoft.HDInsight/stable/2018-06-01-preview/examples/CreateHDInsightClusterWithAutoscaleConfig.json b/specification/hdinsight/resource-manager/Microsoft.HDInsight/stable/2018-06-01-preview/examples/CreateHDInsightClusterWithAutoscaleConfig.json
new file mode 100644
index 000000000000..19a92e1154e3
--- /dev/null
+++ b/specification/hdinsight/resource-manager/Microsoft.HDInsight/stable/2018-06-01-preview/examples/CreateHDInsightClusterWithAutoscaleConfig.json
@@ -0,0 +1,123 @@
+{
+    "parameters": {
+        "clusterName": "cluster1",
+        "resourceGroupName": "rg1",
+        "api-version": "2018-06-01-preview",
+        "subscriptionId": "subid",
+        "parameters": {
+            "properties": {
+                "clusterVersion": "3.6",
+                "osType": "Linux",
+                "tier": "Standard",
+                "clusterDefinition": {
+                    "kind": "hadoop",
+                    "componentVersion": {
+                        "Hadoop": "2.7"
+                    },
+                    "configurations": {
+                        "gateway": {
+                            "restAuthCredential.isEnabled": true,
+                            "restAuthCredential.username": "admin",
+                            "restAuthCredential.password": "**********"
+                        }
+                    }
+                },
+                "storageProfile": {
+                    "storageaccounts": [
+                        {
+                            "name": "mystorage.blob.core.windows.net",
+                            "isDefault": true,
+                            "container": "hdinsight-autoscale-tes-2019-06-18t05-49-16-591z",
+                            "key": "storagekey"
+                        }
+                    ]
+                },
+                "computeProfile": {
+                    "roles": [
+                        {
+                            "autoscale": {
+                                "capacity": null,
+                                "recurrence": {
+                                    "timeZone": "China Standard Time",
+                                    "schedule": [
+                                        {
+                                            "days": [
+                                                "Monday",
+                                                "Tuesday",
+                                                "Wednesday",
+                                                "Thursday",
+                                                "Friday"
+                                            ],
+                                            "timeAndCapacity": {
+                                                "time": "09:00",
+                                                "minInstanceCount": 3,
+                                                "maxInstanceCount": 3
+                                            }
+                                        },
+                                        {
+                                            "days": [
+                                                "Monday",
+                                                "Tuesday",
+                                                "Wednesday",
+                                                "Thursday",
+                                                "Friday"
+                                            ],
+                                            "timeAndCapacity": {
+                                                "time": "18:00",
+                                                "minInstanceCount": 6,
+                                                "maxInstanceCount": 6
+                                            }
+                                        },
+                                        {
+                                            "days": [
+                                                "Saturday",
+                                                "Sunday"
+                                            ],
+                                            "timeAndCapacity": {
+                                                "time": "09:00",
+                                                "minInstanceCount": 2,
+                                                "maxInstanceCount": 2
+                                            }
+                                        },
+                                        {
+                                            "days": [
+                                                "Saturday",
+                                                "Sunday"
+                                            ],
+                                            "timeAndCapacity": {
+                                                "time": "18:00",
+                                                "minInstanceCount": 4,
+                                                "maxInstanceCount": 4
+                                            }
+                                        }
+                                    ]
+                                }
+                            },
+                            "name": "workernode",
+                            "targetInstanceCount": 4,
+                            "hardwareProfile": {
+                                "vmSize": "Standard_D4_V2"
+                            },
+                            "osProfile": {
+                                "linuxOperatingSystemProfile": {
+                                    "username": "sshuser",
+                                    "password": "**********"
+                                }
+                            },
+                            "virtualNetworkProfile": null,
+                            "scriptActions": [],
+                            "dataDisksGroups": null
+                        }
+                    ]
+                }
+            }
+        }
+    },
+    "responses": {
+        "200": {
+            "headers": {
+                "location": "https://management.azure.com/subscriptions/subid/providers/Microsoft.HDInsight/pathToOperationResult"
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/specification/hdinsight/resource-manager/Microsoft.HDInsight/stable/2018-06-01-preview/examples/HDI_Clusters_UpdateGatewaySettings_Enable.json b/specification/hdinsight/resource-manager/Microsoft.HDInsight/stable/2018-06-01-preview/examples/HDI_Clusters_UpdateGatewaySettings_Enable.json
index 306db252822e..23c05b00feca 100644
--- a/specification/hdinsight/resource-manager/Microsoft.HDInsight/stable/2018-06-01-preview/examples/HDI_Clusters_UpdateGatewaySettings_Enable.json
+++ b/specification/hdinsight/resource-manager/Microsoft.HDInsight/stable/2018-06-01-preview/examples/HDI_Clusters_UpdateGatewaySettings_Enable.json
@@ -15,6 +15,11 @@
       "headers": {
         "location": "https://management.azure.com/subscriptions/subid/providers/Microsoft.HDInsight/pathToOperationResult"
       }
+    },
+    "200": {
+      "headers": {
+          "location": "https://management.azure.com/subscriptions/subid/providers/Microsoft.HDInsight/pathToOperationResult"
+      }
     }
   }
 }