Pymongo几周来一直很好，直到我遇到以下错误：
Traceback (most recent call last):
File "main.py", line 14, in
main()
File "main.py", line 11, in main
downloader.process()
File "/mnt/vdisk/crawler/eurostat/downloader.py", line 25, in process
self.processHelper()
File "/mnt/vdisk/crawler/eurostat/downloader.py", line 61, in processHelper
self.base.insert(documents)
File "/usr/local/lib/python2.7/dist-packages/pymongo/collection.py", line 359, in insert
continue_on_error, self.__uuid_subtype), safe)
File "/usr/local/lib/python2.7/dist-packages/pymongo/mongo_client.py", line 852, in _send_message
rv = self.__check_response_to_last_error(response)
File "/usr/local/lib/python2.7/dist-packages/pymongo/mongo_client.py", line 793, in __check_response_to_last_error
raise DuplicateKeyError(details["err"])
pymongo.errors.DuplicateKeyError: E11000 duplicate key error index: test.eurostatdata.$_id_ dup key: { : ObjectId('50fd056757b924675af21a0e') }
_id绝对不是该领域之一。我总是依靠mongodb来生成自己的_id，所以我之前从未遇到过这种问题。
插入代码：
documents = []
for key in split_table_data:
document = ele
document["title"] = ele["title"]
document["table_data"] = split_table_data[key]
document["cols"] = colsHeader
document["subTitles"] = key
documents.append(document)
self.base.insert(documents)
我使用最新的pymongo包和最新的mongodb。
唯一可能导致此问题的是我尝试插入超出大小限制的文档。
我试过了
db.repairDatabase（）
db.test.validate（）