ADF在Until活动中提供一个选项，使得在Until活动的内部活动失败时停止在Pipeline中运行。可以使用以下JSON代码将此选项设置为“true”：

{
    "name": "Until1",
    "type": "Until",
    "typeProperties": {
        "expression": {
            "value": "@equals(activity('Check_file_existence').output.firstRow.exists, false)"
        },
        "activities": [
            {
                "name": "Check_file_existence",
                "type": "Copy",
                "inputs": [
                    {
                        "referenceName": "blob_input",
                        "type": "DatasetReference"
                    }
                ],
                "outputs": [
                    {
                        "referenceName": "blob_output",
                        "type": "DatasetReference"
                    }
                ],
                "typeProperties": {
                    "source": {
                        "type": "BlobSource"
                    },
                    "sink": {
                        "type": "BlobSink",
                        "writeBatchSize": 0,
                        "writeBatchTimeout": "00:00:00"
                    }
                },
                "policy": {
                    "timeout": "00:01:00",
                    "retry": 0,
                    "retryIntervalInSeconds": 0
                }
            }
        ],
        "OuterActivityCannotFailOnInnerActivityFailure": true
    }
}