mongo-connector: `ServerSelectionTimoutError` on Remote Replica Set

I’m trying to connect from a remote MongoDB instance to a local Elasticsearch instance. The MongoDB instance is a replica set behind a proxy, and I’m connecting with SSL. I’ve tried tweaking things with varying degrees of success, the closest I’ve gotten is when I hit this error:

ServerSelectionTimeoutError: <ip_address_1>:27017: timed out,<ip_address_2>:27017: timed out,<ip_address_3>:27017: timed out

The 3 IP addresses it lists are correct for the replica set members, which indicates to me that it’s actually connecting/authenticating properly, but some issue occurs afterward.

The command I’m using looks like this: mongo-connector -c mongo-connector-config.json -m mongodb://<ip_address>:<port>/?ssl=true -t 192.168.99.100:9200 -d elastic_doc_manager --ssl-ca-certs my-cert.pem --ssl-certificate-policy optional

The only things I’m specifying in my config are noDump: true and a few namespaces.

About this issue

Original URL
State: closed
Created 8 years ago
Comments: 25 (9 by maintainers)

Most upvoted comments

@pratyus Nice job with the fix, implemented it for my app’s architecture and it works fine.

benlavalley on May 8, 2019

Friendly ping to take a look at the PR. Thanks

pratyus on Oct 20, 2017

The second-last option on that page is pretty much what I was trying to accomplish with my --ssl-ca-certs option:

client = pymongo.MongoClient('example.com',
...                              ssl=True,
...                              ssl_ca_certs='/path/to/ca.pem')

The equivalent works via command line, so I’m not sure what’s going on in between the CLI and the actual MongoClient call. I’ll try to debug and see.

letsgolesco on Feb 22, 2016