1.在使用Python连接hive之前,需要将hive安装包下的lib/py中的文件拷贝到python的sys.path中的site-packages下,否则引入对应的包会报错,这个是使用hive提供的Python接口来调用hive客户端。
2 启动hive 的thrift
确保以下服务开启:
hive --service hiveserver
默认端口是10000
from hive_service import ThriftHive from thrift import Thrift from thrift.transport import TSocket from thrift.transport import TTransport from thrift.protocol import TBinaryProtocol def ReadHiveTest(sql): try: tSocket = TSocket.TSocket('172.18.1.88',10000) tTransport = TTransport.TBufferedTransport(tSocket) protocol = TBinaryProtocol.TBinaryProtocol(tTransport) client = ThriftHive.Client(protocol) tTransport.open() client.execute(sql) return client.fetchAll() except Thrift.TException, tx: print '%s' % (tx.message) finally: tTransport.close() if __name__ == '__main__': showDatabasesSql = 'show databases' showTablesSql = 'show tables' selectSql = 'SELECT * FROM 07_jn_mysql_2' result = ReadHiveTest(selectSql) print(result[1])
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