Mongodb批量写入错误

Question

我正在执行批量写入

bulk = new_packets.initialize_ordered_bulk_op()

bulk.insert(packet)

output = bulk.execute()

并且得到一个我认为是数据包不是命令的错误。但是，我确实知道这是一个命令。可能是什么问题？

这里是错误：

    BulkWriteError                            Traceback (most recent call last)
    <ipython-input-311-93f16dce5714> in <module>()
          2 
          3 bulk.insert(packet)
    ----> 4 output = bulk.execute()

    C:\Users\e306654\AppData\Local\Continuum\Anaconda\lib\site-packages\pymongo\bulk.pyc in execute(self, write_concern)
583         if write_concern and not isinstance(write_concern, dict):
584             raise TypeError('write_concern must be an instance of dict')
    --> 585         return self.__bulk.execute(write_concern)

    C:\Users\e306654\AppData\Local\Continuum\Anaconda\lib\site-packages\pymongo\bulk.pyc in execute(self, write_concern)
429             self.execute_no_results(generator)
430         elif client.max_wire_version > 1:
    --> 431             return self.execute_command(generator, write_concern)
432         else:
433             return self.execute_legacy(generator, write_concern)

    C:\Users\e306654\AppData\Local\Continuum\Anaconda\lib\site-packages\pymongo\bulk.pyc in execute_command(self, generator, write_concern)
296                 full_result['writeErrors'].sort(
297                     key=lambda error: error['index'])
    --> 298             raise BulkWriteError(full_result)
299         return full_result
300 

    BulkWriteError: batch op errors occurred

Answer 1

可能有很多原因...最好是您尝试...捕获...异常并检查错误

from pymongo.errors import BulkWriteError
try:
    bulk.execute()
except BulkWriteError as bwe:
    print(bwe.details)
    #you can also take this component and do more analysis
    #werrors = bwe.details['writeErrors']
    raise

Answer 2

好吧，问题是我在显式分配_id，结果该字符串大于12字节的限制，这很糟糕。

Answer 3

您应该检查两件事：

1. 重复，如果您要定义自己的密钥。
2. 能够管理自定义类型，在我的情况下，我试图传递一个无法转换为有效objectId的哈希类型对象，这导致我走到了第一点，我感到陷入了恶性循环（我解决了将myObject转换为字符串的问题。

一一插入将使您了解发生了什么。