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I'm trying to add a node to a replica set using rs.add("developer-ViratualBox:30103") and I'm getting the following error message:
{
"ok" : 0,
"errmsg" : "Quorum check failed because not enough voting nodes responded; required 2 but only the following 1 voting nodes responded: developer-VirtualBox:30101; the following nodes did not respond affirmatively: developer-ViratualBox:30103 failed with Failed attempt to connect to developer-ViratualBox:30103; couldn't initialize connection to host developer-ViratualBox, address is invalid",
"code" : 74
}
The node is already running and I'm connected to it using mongo shell. What could possibly be the problem?
784
In simple terms, MongoDB replication is the process of creating a copy of the same data set in more than one MongoDB server. This can be achieved by using a Replica Set. A replica set is a group of MongoDB instances that maintain the same data set and pertain to any mongod process.
MongoDB replication lag occurs when the secondary node cannot replicate data fast enough to keep up with the rate that data is being written to the primary node.
To connect to a replica set deployment, specify the hostname and port numbers of each instance, separated by commas, and the replica set name as the value of the replicaSet parameter in the connection string. In the following example, the hostnames are host1 , host2 , and host3 , and the port numbers are all 27017 .
The actual error is couldn't initialize connection to host developer-ViratualBox, address is invalid, Simply the primary node is not able to connect with secondery nodes. check connections, firewall, and check connection with mongo shell whether you can access that port or not.
84
The missing point is that the instance that I was trying to add did not have mongod instance started at the port defined. The given connection parameters hence were incorrect, and that caused the communication problem.
45
While starting secondary mongod process use --replSet option the try to run rs.add("localhost:27002") from primary mongod shell.
27
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