Mongodb connect issue

[nilava]

Short description

Cant connect to mongodb replica set on cloud atlas

https://cloud.mongodb.com/

Environment

• Ubuntu 18.04 & Latest Enterprise Edition

Logs

Place logs on pastebin or elsewhere and put links here

Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'tomcat.cluster' defined in class path resource [jee-container.xml]: Cannot create inner bean 'io.antmedia.enterprise.cluster.ClusterStore#6cf0e0ba' of type [io.antmedia.enterprise.cluster.ClusterStore] while setting bean property 'clusterStore'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'io.antmedia.enterprise.cluster.ClusterStore#6cf0e0ba' defined in class path resource [jee-container.xml]: Bean instantiation via constructor failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [io.antmedia.enterprise.cluster.ClusterStore]: Constructor threw exception; nested exception is com.mongodb.MongoTimeoutException: Timed out after 30000 ms while waiting for a server that matches WritableServerSelector. Client view of cluster state is {type=UNKNOWN, servers=[{address=ant-media.1dy4f.azure.mongodb.net:27017, type=UNKNOWN, state=CONNECTING, exception={com.mongodb.MongoSocketException: ant-media.1dy4f.azure.mongodb.net: No address associated with hostname}, caused by {java.net.UnknownHostException: ant-media.1dy4f.azure.mongodb.net: No address associated with hostname}}]

[mekya]

Thank you for the report.

It the log it says something

java.net.UnknownHostException for ant-media.1dy4f.azure.mongodb.net

There may be a kind of DNS issue?

[nilava]

thats what i initially though, however looks like it cant connect to replica set

using this standalone code works, should i modify the db connect file and build one from source? or is there something i am doing wrong?

MongoClientURI uri = new MongoClientURI(
    "mongodb+srv://admin:<password>@ant-media.1dy4f.azure.mongodb.net/<dbname>?retryWrites=true&w=majority");

MongoClient mongoClient = new MongoClient(uri);
MongoDatabase database = mongoClient.getDatabase("test");

[mekya]

Thank you. I try to check it out at weekend.

[mekya]

My colleague(@muratugureminoglu ) will look into this.

Before that, I should mention that in order to connect to replicaSet. db.host url should be set to something like this.

db.host=<mongo_host>:27017/?replicaSet=<replication_name>

[nilava]

Tried everything with no success.

[mekya]

Hi @muratugureminoglu ,
Do you have some chance for trying that?

[burak-58]

Hi @nilava,
Could you please try it again after changing change_server_mode.sh file with this one.

[nilava]

Sure, will try it out, right now we have moved to production use with local mongo db instance with no replica set.
Will spin up a new test instance and test it out.

[choxnox]

I'm facing similar issues when trying to run the EE in cluster mode and when Mongo is hosted at Mongo Atlas. I've also tried the suggested change_server_mode.sh script but to no avail.

It works just fine when I spin up MongoDB instance in DigitalOcean but when I try to use Mongo Atlas service, it simply fails. I've tried with the following:

• cluster0.xxxxx.mongodb.net
• cluster0-shard-00-00.xxxxx.mongodb.net:27017,cluster0-shard-00-01.xxxxx.mongodb.net:27017,cluster0-shard-00-02.xxxxx.mongodb.net:27017/replicaSet=atlas-yyyyyy-shard-0
• cluster0-shard-00-01.xxxxx.mongodb.net

I'm able to connect to the Mongo Atlas cluster with any of the above URIs using MongoDB Compass app or any other Mongo management app.

[choxnox]

@mekya Any inputs on this?

[mekya]

Re-opening issue and it'll be scheduled again in this week.

[burak-58]

For MongoDB Atlas, the following works for me:
./change_server_mode.sh cluster 'mymongotestcluster-shard-00-00.xxxxx.mongodb.net:27017/?ssl=true&replicaSet=atlas-yyyyyy-shard-0' user pass

[choxnox]

For MongoDB Atlas, the following works for me:
./change_server_mode.sh cluster 'mymongotestcluster-shard-00-00.xxxxx.mongodb.net:27017/?ssl=true&replicaSet=atlas-yyyyyy-shard-0' user pass

This is what I get when I execute that for my Mongo Atlas cluster (v2.1 EE):

[choxnox]

However, this seems to work:

./change_server_mode.sh cluster 'mymongotestcluster-shard-00-00.xxxxx.mongodb.net:27017\/?ssl=true\&replicaSet=atlas-yyyyyy-shard-0' user pass

Notice the "escaped" slash (/) and ampersand (&) characters.