ConnectionFailed: Failed to connect to MongoDB

[AnuradhaGarje606]

I am trying to sync two mongodb services with replicasets. i.e. first service have 3 replicas and second service also have 3 replicas. So I want to sync all the data from first service to second service, which is giving below error.

`Traceback (most recent call last):
File "/usr/local/lib/python3.9/site-packages/pymongo/mongo_client.py", line 425, in init
self._ensure_connected(True)
File "/usr/local/lib/python3.9/site-packages/pymongo/mongo_client.py", line 1083, in _ensure_connected
self.__ensure_member()
File "/usr/local/lib/python3.9/site-packages/pymongo/mongo_client.py", line 957, in __ensure_member
member, nodes = self.__find_node()
File "/usr/local/lib/python3.9/site-packages/pymongo/mongo_client.py", line 1048, in __find_node
raise AutoReconnect(', '.join(errors))
pymongo.errors.AutoReconnect: connection closed

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/usr/local/lib/python3.9/site-packages/mongo_connector/doc_managers/mongo_doc_manager.py", line 70, in init
self.mongo = pymongo.MongoClient(url, **kwargs.get("clientOptions", {}))
File "/usr/local/lib/python3.9/site-packages/pymongo/mongo_client.py", line 428, in init
raise ConnectionFailure(str(e))
pymongo.errors.ConnectionFailure: connection closed

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "/usr/local/bin/mongo-connector", line 8, in
sys.exit(main())
File "/usr/local/lib/python3.9/site-packages/mongo_connector/util.py", line 107, in wrapped
func(*args, **kwargs)
File "/usr/local/lib/python3.9/site-packages/mongo_connector/connector.py", line 1409, in main
conf.parse_args()
File "/usr/local/lib/python3.9/site-packages/mongo_connector/config.py", line 124, in parse_args
option.apply_function(
File "/usr/local/lib/python3.9/site-packages/mongo_connector/connector.py", line 1134, in apply_doc_managers
dm_instances.append(DocManager(target_url, **kwargs))
File "/usr/local/lib/python3.9/site-packages/mongo_connector/doc_managers/mongo_doc_manager.py", line 74, in init
raise errors.ConnectionFailed("Failed to connect to MongoDB")`

my config file contents are as below

`{
"mainAddress": "mongodb://$USERNAME:$PASSWORD@68******************-0.budep0g.databases.appdomain.cloud:31933,68*******-1.budep0g.databases.appdomain.cloud:31933,68*******-2.budep***********0g.databases.appdomain.cloud:31933/?authSource=admin&replicaSet=replset",
"verbosity": 3,

"docManagers": [
{
"docManager": "mongo_doc_manager",
"targetURL": "mongodb://$USERNAME:$PASSWORD@68******************-0.budep0g.databases.appdomain.cloud:31933,68*******-1.budep0g.databases.appdomain.cloud:31933,68*******-2.budep***********0g.databases.appdomain.cloud:31933/?authSource=admin&replicaSet=replset"
}
]
}`