Python连接Hive

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])