Question

我正在使用happybase连接到我的Hbase数据库。我制作了一个名为'irisSample'的样本表。这是我遇到问题的代码部分 -

import happybase
from happybase import *
import json

connection = happybase.Connection('<ip-address>', '9090')

table = connection.table('irisSample')

n = 0
x = 1
for u in y:
    data = {'petalWidth':points['petalWidth'][n], 'sepalLength':points['sepalLength'][n], 
          'petalLength':points['petalLength'][n], 'label': u}
    row = 'row' + str(x)
    table.put(row, {'flowers': str(data)})
    n += 1
    x += 1

我得到以下内容。

TApplicationException                     Traceback (most recent call last)
<ipython-input-15-94741a8b04dc> in <module>()
      9           'petalLength':points['petalLength'][n], 'label': u}
     10     row = 'row' + str(x)
---> 11     table.put(row, {'flowers': str(data)})
     12     n += 1
     13     x += 1

/root/anaconda/lib/python2.7/site-packages/happybase/table.pyc in put(self, row, data, timestamp, wal)
    437         """
    438         with self.batch(timestamp=timestamp, wal=wal) as batch:
--> 439             batch.put(row, data)
    440 
    441     def delete(self, row, columns=None, timestamp=None, wal=True):

/root/anaconda/lib/python2.7/site-packages/happybase/batch.pyc in __exit__(self, exc_type, exc_value, traceback)
    130             return
    131 
--> 132         self.send()

/root/anaconda/lib/python2.7/site-packages/happybase/batch.pyc in send(self)
     53                      self._table.name, self._mutation_count, len(bms))
     54         if self._timestamp is None:
---> 55             self._table.connection.client.mutateRows(self._table.name, bms, {})
     56         else:
     57             self._table.connection.client.mutateRowsTs(

/root/anaconda/lib/python2.7/site-packages/happybase/hbase/Hbase.pyc in mutateRows(self, tableName, rowBatches, attributes)
   1574     """
   1575     self.send_mutateRows(tableName, rowBatches, attributes)
-> 1576     self.recv_mutateRows()
   1577 
   1578   def send_mutateRows(self, tableName, rowBatches, attributes):

/root/anaconda/lib/python2.7/site-packages/happybase/hbase/Hbase.pyc in recv_mutateRows(self)
   1592       x.read(self._iprot)
   1593       self._iprot.readMessageEnd()
-> 1594       raise x
   1595     result = mutateRows_result()
   1596     result.read(self._iprot)

TApplicationException: Internal error processing mutateRows

我也尝试了json.dumps(data)而不是str(data)，它引发了同样的例外。

从我收集的内容看起来更像是一个节俭问题，但我可能是错的。我可能不得不看一下starbase。我不知道，这就是我问你们的原因。

Answer 1

在您的＆＃34;数据中看起来像＃34;对象您没有给列系列以及列名称。

data = {'petalWidth':points['petalWidth'[n], 'sepalLength':points['sepalLength'][n], 'petalLength':points['petalLength'][n], 'label': u}

您需要在每个列值之前添加列族。例如，你的专栏系列是＆＃34; cf＆＃34;而不是'petalWidth＆＃39;你想要＆＃39; cf：petalWidth＆＃39;。

data = {'cf:petalWidth':points['petalWidth'[n], 'cf:sepalLength':points['sepalLength'][n], 'cf:petalLength':points['petalLength'][n], 'cf:label': u}

这样做为我修复了mutateRows错误。

Answer 2

我找到了答案here。它需要REST框架在未使用的端口上运行。然后我连接到该端口，并能够看到Hbase中所有表的列表并将数据插入数据库。命令为./hbase-daemon.sh start rest -p <unused port number>。我无法在任何地方找到答案，甚至没有人评论过几天，所以我希望这对你有所帮助！这是代码。我最终使用了starbase。

import starbase
from starbase import Connection

c = Connection(host='<ip-address>', port=8000)

顺便说一下，

8000是默认端口。

t = c.table('irisSample')

for flower in range(len(labels)):
    data = {'petalWidth':X[flower][3], 'petalLength':X[flower][2], 
              'sepalLength':X[flower][0], 'sepalWidth':X[flower][1], 'cluster': labels[flower]}
    n += 1
    row = 'row' + str(n)
    t.insert(row, {'flowers': data})

如何绕过happybase“TApplicationException：内部错误处理mutateRows”错误？

2 个答案: