无法在Python中使用Happybase创建简单表

Posted 2021-04-30

我正在尝试使用Happybase创建一个表。首先，我输入以下命令，让Hbase和Thrift运行：

start-hbase.sh
hbase thrift start &

一旦运行，我打开Python的命令提示符并输入以下内容：

import happybase as hb
connection = hb.Connection()
connection.open()

但是，当我尝试创建一个表时：

connection.create_table(
'mytable',
{'cf1': dict(max_versions=10),
 'cf2': dict(max_versions=1, block_cache_enabled=False),
 'cf3': dict(),  # use defaults
}

我得到以下错误，我只是不明白。

Traceback (most recent call last):
  File "<stdin>", line 5, in <module>
  File "/usr/local/lib/python2.7/dist-packages/happybase/connection.py", line 309, in create_table
    self.client.createTable(name, column_descriptors)
  File "/usr/local/lib/python2.7/dist-packages/thriftpy/thrift.py", line 198, in _req
    return self._recv(_api)
  File "/usr/local/lib/python2.7/dist-packages/thriftpy/thrift.py", line 210, in _recv
    fname, mtype, rseqid = self._iprot.read_message_begin()
  File "thriftpy/protocol/cybin/cybin.pyx", line 429, in cybin.TCyBinaryProtocol.read_message_begin (thriftpy/protocol/cybin/cybin.c:6325)
  File "thriftpy/protocol/cybin/cybin.pyx", line 60, in cybin.read_i32 (thriftpy/protocol/cybin/cybin.c:1546)
  File "thriftpy/transport/buffered/cybuffered.pyx", line 65, in thriftpy.transport.buffered.cybuffered.TCyBufferedTransport.c_read (thriftpy/transport/buffered/cybuffered.c:1881)
  File "thriftpy/transport/buffered/cybuffered.pyx", line 69, in thriftpy.transport.buffered.cybuffered.TCyBufferedTransport.read_trans (thriftpy/transport/buffered/cybuffered.c:1948)
  File "thriftpy/transport/cybase.pyx", line 61, in thriftpy.transport.cybase.TCyBuffer.read_trans (thriftpy/transport/cybase.c:1472)
  File "/usr/local/lib/python2.7/dist-packages/thriftpy/transport/socket.py", line 125, in read
    message='TSocket read 0 bytes')
thriftpy.transport.TTransportException: TTransportException(message='TSocket read 0 bytes', type=4)
)

答案

您需要指定服务器地址，并可能指定端口：

connection = hb.Connection(SERVER, PORT)

您可以省略端口值，因为很可能默认值将匹配，但以防万一检查您的thrift服务器正在侦听的端口并将其指定为数值