自动重新连接:没有可用于使用ReadPreference PRIMARY_PREFERRED查询的副本集成员

Question

问题处理此类错误的最佳方法是什么？比如说,最多30秒后重试.5次？

设置 我在AWS ECS上有一个PRIMARY +两个SECONDARY设置,并且没有任何框已关闭.

从异常消息来看,似乎Mongo说"我没有PRIMARY,我试图从SECONDARY获取数据,但它们也已经失效".但是,没有一个Mongo服务器出现故障.我这有一个默认的另一个进程运行read_preference的SECONDARY,并已被罚款运行.

例外

is_auth = db.authenticate("myid","mypass")
 File "/usr/local/lib/python2.7/dist-packages/pymongo/database.py", line
720, in authenticate
   read_preference=read_pref)["nonce"]
 File "/usr/local/lib/python2.7/dist-packages/pymongo/database.py", line
390, in command
   result = self["$cmd"].find_one(command, **extra_opts)
 File "/usr/local/lib/python2.7/dist-packages/pymongo/collection.py",
line 598, in find_one
   for result in self.find(spec_or_id, *args, **kwargs).limit(-1):
 File "/usr/local/lib/python2.7/dist-packages/pymongo/cursor.py", line
814, in next
   if len(self.__data) or self._refresh():
 File "/usr/local/lib/python2.7/dist-packages/pymongo/cursor.py", line
763, in _refresh
   self.__uuid_subtype))
 File "/usr/local/lib/python2.7/dist-packages/pymongo/cursor.py", line
700, in __send_message
   **kwargs)
 File 
"/usr/local/lib/python2.7/dist-packages/pymongo/mongo_replica_set_client.py
", line 1210, in _send_message_with_response
   raise AutoReconnect(msg, errors)


AutoReconnect: No replica set members available for query with
ReadPreference PRIMARY_PREFERRED

码

connection = MongoReplicaSetClient(, replicaSet='myReplica-2', use_greenlets = True) 
db = "my_real_db"
db.read_preference = ReadPreference.PRIMARY
is_auth = db.authenticate("myid", "mypass") # ERROR at this line

版本 MongoDB:2.2.0和PyMongo:2.4.2

Answer 1

我会仔细检查您的副本集配置.rs.status()在其中一个副本集成员上运行,并确保每个成员的"名称"字段实际上是正确的,并从运行应用程序的计算机中解析.