backend/app/datax/job/hive2hive.json

{
    "job": {
        "content": [
            {
                "reader": {
                    "name": "hdfsreader", 
                    "parameter": {
                        "column": ["*"], 
                        "defaultFS": "hdfs://hadoop03:8020/", 
                        "encoding": "UTF-8", 
                        "fieldDelimiter": "\t", 
                        "fileType": "text", 
                        "path": "/user/hive/warehouse/user_info/user_info_data.txt"
                    }
                }, 
                "writer": {
                    "name": "hdfswriter", 
                    "parameter": {
                        "column": [
                             {
                               "name":"user_id",
                               "type":"string"
                             },
                             {
                               "name":"area_id",
                               "type":"string"
                             },
                            {
                               "name":"age",
                               "type":"int"
                             },

                             {
                              "name":"occupation",
                               "type":"string"  
                             }
                         ], 
                        "compress": "", 
                        "defaultFS": "hdfs://hadoop03:8020/", 
                        "fieldDelimiter": "\t", 
                        "fileName": "user_info_data_2.txt", 
                        "fileType": "text", 
                        "path": "/user/hive/warehouse/user_info/", 
                        "writeMode": "append"
                    }
                }
            }
        ], 
        "setting": {
            "speed": {
                "channel": "1"
            }
        }
    }
}