我有一些文档必须从mongodb获取，并将其设置为memcache。这是代码
import memcache
from pymongo import MongoClient
db = mongo_client.job_db.JobParsedData
jobs = db.find().sort("JobId", 1)
def set_to_memcache_raw(jobs):
print("Setting raw message to memcache")
count = 0
for item in jobs:
job_id = item.get('JobId')
job_details = item.get('JobDetails')
if job_id.strip():
count += 1
memcache_obj.set(job_id, job_details, time=72000)
if count % 1000 == 0:
print("Inserted {} keys in memcache".format(count))
if count >= 1000000:
break
但是，在经过奇数次迭代后，代码会引发此错误-
Traceback (most recent call last):
File "/home/dimension/.virtualenvs/docparser/lib/python3.5/site-packages/pymongo/pool.py", line 450, in receive_message
self.sock, operation, request_id, self.max_message_size)
File "/home/dimension/.virtualenvs/docparser/lib/python3.5/site-packages/pymongo/network.py", line 137, in receive_message
header = _receive_data_on_socket(sock, 16)
File "/home/dimension/.virtualenvs/docparser/lib/python3.5/site-packages/pymongo/network.py", line 164, in _receive_data_on_socket
chunk = sock.recv(length)
ConnectionResetError: [Errno 104] Connection reset by peer
During handling of the above exception, another exception occurred:
Traceback (most recent call last):
File "memcache-poc.py", line 56, in <module>
elapsed = time.time() - t0
File "memcache-poc.py", line 52, in main
jobs = db.find(query)
File "memcache-poc.py", line 17, in set_to_memcache_raw
print("Setting raw message to memcache")
File "/home/dimension/.virtualenvs/docparser/lib/python3.5/site-packages/pymongo/cursor.py", line 1114, in next
if len(self.__data) or self._refresh():
File "/home/dimension/.virtualenvs/docparser/lib/python3.5/site-packages/pymongo/cursor.py", line 1056, in _refresh
self.__max_await_time_ms))
File "/home/dimension/.virtualenvs/docparser/lib/python3.5/site-packages/pymongo/cursor.py", line 873, in __send_message
**kwargs)
File "/home/dimension/.virtualenvs/docparser/lib/python3.5/site-packages/pymongo/mongo_client.py", line 905, in _send_message_with_response
exhaust)
File "/home/dimension/.virtualenvs/docparser/lib/python3.5/site-packages/pymongo/mongo_client.py", line 916, in _reset_on_error
return func(*args, **kwargs)
File "/home/dimension/.virtualenvs/docparser/lib/python3.5/site-packages/pymongo/server.py", line 136, in send_message_with_response
response_data = sock_info.receive_message(1, request_id)
File "/home/dimension/.virtualenvs/docparser/lib/python3.5/site-packages/pymongo/pool.py", line 452, in receive_message
self._raise_connection_failure(error)
File "/home/dimension/.virtualenvs/docparser/lib/python3.5/site-packages/pymongo/pool.py", line 550, in _raise_connection_failure
_raise_connection_failure(self.address, error)
File "/home/dimension/.virtualenvs/docparser/lib/python3.5/site-packages/pymongo/pool.py", line 211, in _raise_connection_failure
raise AutoReconnect(msg)
pymongo.errors.AutoReconnect: xxx.xxx.xxx.xxx:27017: [Errno 104] Connection reset by peer
我已经通过了诸如
pymongo-errors
mongodb-TCP keep-alive
why-does-pymongo-throw-autoreconnect
上面的代码中的套接字无 liveness 是没有问题的，因为我的工作对象是一个迭代器，并且每次在此对象上调用next()时，它将获取下一个文档(从mongo本身)
我在Azure云上安装了mongodb，实例的TCP保持事件状态为7200秒。我通过执行此命令获得此图
sysctl net.ipv4.tcp_keepalive_time
7200
在这种情况下，在for循环中尝试使用cacth块会有所帮助
最佳答案
根据下面有关pymongo api文档here的问题的信息，需要手动处理该异常。
我搜索了一些现有的解决方案来解决此问题，请参见下文。
AutoReconnect异常。 MongoDBProxy 的中间件自动处理AutoReconnect异常。 希望能帮助到你。
关于python - 对等pymongo重置连接，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/42502879/