How to connect to remote MongoDB with mongo-connector? - mongodb

Question

How can I connect to a MongoDB cluster on Mongo Atlas using mongo-connector?
I have tried to connector to my cluster with the following commands:
First attempt
sudo mongo-connector -m "mongodb://g******:*********#rest-api-data-shard-00-00-xemv3.mongodb.net:27017,rest-api-data-shard-00-01-xemv3.mongodb.net:27017,rest-api-data-shard-00-02-xemv3.mongodb.net:27017/admin?ssl
=true&replicaSet=rest-api-data-shard-0&authSource=admin" -a g****** -p "***********" -t http://localhost:9200 -d elastic2_doc_manager
Response:
Logging to mongo-connector.log.
Exception in thread Thread-1:
Traceback (most recent call last):
File "/usr/local/Cellar/python/2.7.12_2/Frameworks/Python.framework/Versions/2.7/lib/python2.7/threading.py", line 801, in __bootstrap_inner
self.run()
File "/usr/local/lib/python2.7/site-packages/mongo_connector/util.py", line 90, in wrapped
func(*args, **kwargs)
File "/usr/local/lib/python2.7/site-packages/mongo_connector/connector.py", line 263, in run
main_conn['admin'].authenticate(self.auth_username, self.auth_key)
File "/usr/local/lib/python2.7/site-packages/pymongo/database.py", line 1018, in authenticate
connect=True)
File "/usr/local/lib/python2.7/site-packages/pymongo/mongo_client.py", line 434, in _cache_credentials
raise OperationFailure('Another user is already authenticated '
OperationFailure: Another user is already authenticated to this database. You must logout first.
Second attempt:
sudo mongo-connector -m "mongodb://rest-api-data-shard-00-00-xemv3.mongodb.net:27017,rest-api-data-shard-00-01-xemv3.mongodb.net:27017,rest-api-data-shard-00-02-xemv3.mongodb.net:27017/admin?replicaSet=rest-api-data-shard-0" -a g********* -p "********" -t http://localhost:9200 -d elastic2_doc_manager
Response:
Logging to mongo-connector.log.
Exception in thread Thread-1:
Traceback (most recent call last):
File "/usr/local/Cellar/python/2.7.12_2/Frameworks/Python.framework/Versions/2.7/lib/python2.7/threading.py", line 801, in __bootstrap_inner
self.run()
File "/usr/local/lib/python2.7/site-packages/mongo_connector/util.py", line 90, in wrapped
func(*args, **kwargs)
File "/usr/local/lib/python2.7/site-packages/mongo_connector/connector.py", line 263, in run
main_conn['admin'].authenticate(self.auth_username, self.auth_key)
File "/usr/local/lib/python2.7/site-packages/pymongo/database.py", line 1018, in authenticate
connect=True)
File "/usr/local/lib/python2.7/site-packages/pymongo/mongo_client.py", line 439, in _cache_credentials
writable_preferred_server_selector)
File "/usr/local/lib/python2.7/site-packages/pymongo/topology.py", line 210, in select_server
address))
File "/usr/local/lib/python2.7/site-packages/pymongo/topology.py", line 186, in select_servers
self._error_message(selector))
ServerSelectionTimeoutError: rest-api-data-shard-00-02-xemv3.mongodb.net:27017: [Errno 54] Connection reset by peer,rest-api-data-shard-00-00-xemv3.mongodb.net:27017: [Errno 54] Connection reset by peer,rest-api-data-shard-00-01-xemv3.mongodb.net:27017: [Errno 54] Connection reset by peer

Answer 1

Answered on the github issue. Solution:
In your first attempt, the problem is that you are specifying the username and password for MongoDB twice. Remove the -a g****** -p "***********" and it should work fine. If you need to authenticate to Elasticsearch you need to use a mongo-connector config file and set the correct authentication options for the Python Elasticsearch client, eg:
{
"mainAddress": "mongodb://user:pass#mongodb:27017,mongodb:27018,mongodb:27019/admin?ssl=true&replicaSet=name&authSource=admin",
"verbosity": 1,
"docManagers": [
{
"docManager": "elastic2_doc_manager",
"targetURL": "http://localhost:9200",
"args": {
"clientOptions": {
"http_auth": ["user", "secret"],
"use_ssl": true
}
}
}
]
}
In your second attempt, it looks like the problem is that you forgot to add ssl=true to the MongoDB connection string. That's why you're getting Connection reset by peer errors.