python3.7通过thrift操作hbase的示例代码

脚本专栏 2025/1/3 佚名

3 2 1

HBase是一个分布式的、面向列的开源数据库，其是Apache的Hadoop项目的子项目。HBase不同于一般的关系数据库，它是一个适合于非结构化数据存储的数据库。另一个不同的是HBase基于列的而不是基于行的模式。其数据结构类似与Redis的key-value模式。

python3.7 通过 thrift ， rpc 接口操作 hbase ，指定依赖库为： thrift 和 hbase-thrift 。然而我们在 python3.7 环境中发现 hbase-thrift-0.20.4 无法被支持， hbase-thrift 官方仅推荐用于 python2.x 。于是有了下边的 patch 版本和 patch 版本写法的客户端。

patch 版本下载，适用于 python 3.x ： http://dl.cpp.la/Archive/hbase-thrift-0.20.4.patch.tgz

卸载 hbase-thrift-0.20.4 版本

# pip3 list | grep hbase-thrift
 hbase-thrift    0.20.4
# pip3 uninstall hbase-thrift -y
 Successfully uninstalled hbase-thrift-0.20.4

安装 hbase-thrift-0.20.4.patch 版本(支持 python3.x )

wget http://dl.cpp.la/Archive/hbase-thrift-0.20.4.patch.tgz
tar -zxvf hbase-thrift-0.20.4.patch.tgz
cd hbase-thrift-0.20.4.patch
python3 setup.py install

检测安装是否成功

# pip3 list | grep hbase-thrift
 hbase-thrift    0.20.4.patch
Python3.7 操作 hbase-thrift-patch 客户端代码示例
from thrift.transport import TSocket
from thrift.transport.TTransport import TBufferedTransport
from thrift.protocol import TBinaryProtocol
 
from hbase import Hbase
from hbase.ttypes import ColumnDescriptor
from hbase.ttypes import Mutation
 
class HBaseClient(object):
 
  def __init__(self):
    self.__ip = HBASE_URI.get("HOST")
    self.__port = HBASE_URI.get("PORT")
    self.__transport = self.createSocket
    protocol = TBinaryProtocol.TBinaryProtocol(self.__transport)
    self.__client = Hbase.Client(protocol)
    self.__transport.open()
 
  @property
  def createSocket(self):
    CS = TSocket.TSocket(self.__ip, self.__port)
    CS.setTimeout(60*1000)
    return TBufferedTransport(CS)
 
  def __del__(self):
    self.__transport.close()
 
  def get_tables(self):
    """
    get all table name
    :return: table name list
    """
    return self.__client.getTableNames()
 
  def create_table(self, table, *columns):
    """
    create table
    :param table: table name
    :param columns: columns name , variable parameter
    """
    func = lambda col: ColumnDescriptor(col)
    column_families = list(map(func, columns))
    self.__client.createTable(table, column_families)
 
  def delete_table(self, table):
    '''
    delete table in hbase
    :param table: tableName
    :return:
    '''
    if self.__client.isTableEnabled(table):
      self.__client.disableTable(table)
    self.__client.deleteTable(table)
 
  def put(self, table, row, columns):
    """
    add record
    :param table: table name
    :param row:
    :param columns:
    :return:
    """
    self.__client.mutateRow(table, row, [Mutation(column=k, value=v) for k, v in columns.items()])
 
  def delete(self, table, row, column):
    """
    delete record
    :param table: table name
    :param row:
    """
    self.__client.deleteAll(table, row, column)
 
  def scan(self, table, start_row="", columns=None):
    """
    get record
    :param table: table name
    :param start_row:
    :param columns:
    """
    scanner = self.__client.scannerOpen(table, start_row, columns)
    while True:
      r = self.__client.scannerGet(scanner)
      if not r:
        break
      yield dict([(k, v.value) for k, v in r[0].columns.items()])
if __name__ == "__main__":
  client = HBaseClient()
  for v in client.scan('studentd', columns={"cpp.la":"https://cpp.la"}):
    print(v)
by:cpp.la

ps：python3.7连接hbase

pip安装thrift 和hbase 包

from thrift.transport import TSocket,TTransport
from thrift.protocol import TBinaryProtocol,TCompactProtocol
from hbase import Hbase
socket = TSocket.TSocket('10.1.21.35',port=9090)
socket.setTimeout(5000)
transport = TTransport.TFramedTransport(socket)
protocol = TBinaryProtocol.TBinaryProtocol(transport) //不使用这个协议
protocol = TCompactProtocol.TCompactProtocol(transport)
client = Hbase.Client(protocol)
socket.open()
table = client.getTableNames()
print(table)

总结

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thrift,python,python,hbase