python脚本 用sqoop把mysql数据导入hive
时间:2022-03-15 08:24
用python把mysql数据库的数据导入到hive中,该过程主要是通过python语言操作sqoop.
#! /usr/bin/env python # coding:utf-8 # -------------------------------- # Created by coco on 16/2/23 # --------------------------------- # Comment: 主要功能说明 :初始化业务数据库 import os import pyhs2 conn=pyhs2.connect(host="192.168.8.94",port=10000,authMechanism="PLAIN",user="hdfs") mysql_info={"host":"192.168.8.94","port":3306,"user":"root","passwd":"gc895316"} print mysql_info def run_hive_query(sql): with conn.cursor() as cursor: cursor.execute(sql) return cursor.fetchall() def mysql_to_hive(host,port,user,passwd,database,table): #os.system("hadoop fs -rm -r /user/task/%s"%table) if [database] not in run_hive_query("show databases"): with conn.cursor() as cursor: cursor.execute("create database " +database) with conn.cursor() as cursor: cursor.execute("use "+database) if [table] not in run_hive_query("show tables"): os.system("sqoop import --connect jdbc:mysql://%s:%s/%s --username %s --password %s --table %s --hive-database %s -m 10 --create-hive-table --hive-import --hive-overwrite "%( host,port,database,user,passwd,table,database)) else: os.system("sqoop import --connect jdbc:mysql://%s:%s/%s --username %s --password %s --table %s --hive-database %s -m 10 --hive-import --hive-overwrite "%( host,port,database,user,passwd,table,database)) mysql_to_hive(mysql_info["host"],mysql_info["port"],mysql_info["user"],mysql_info["passwd"].replace("(","\("),"wwn","cm_vip")