MongoDB Replication addition failing - mongodb

Question

I'm trying to add 2 slaves in mongodb replication after successful initialization. But unfortunately it is failing.
repset_init.js file details
rs.add( { host: "10.0.1.170:27017" } )
rs.add( { host: "10.0.2.157:27017" } )
rs.add( { host: "10.0.3.88:27017" } )
command which i have executed for replicaset addition
mongo -u xxxxx -p yyyy --authenticationDatabase admin --port 27017 repset_init.js
command hangs in terminal and below is the log output
{"t":{"$date":"2021-06-09T12:29:34.939+00:00"},"s":"I", "c":"REPL", "id":21393, "ctx":"conn2","msg":"Found self in config","attr":{"hostAndPort":"MongoD-1:27017"}}
{"t":{"$date":"2021-06-09T12:29:34.939+00:00"},"s":"I", "c":"COMMAND", "id":51803, "ctx":"conn2","msg":"Slow query","attr":{"type":"command","ns":"local.system.replset","appName":"MongoDB Shell","command":{"replSetReconfig":{"_id":"Shard_0","version":2,"protocolVersion":1,"writeConcernMajorityJournalDefault":true,"members":[{"_id":0,"host":"MongoD-1:27017","arbiterOnly":false,"buildIndexes":true,"hidden":false,"priority":1.0,"tags":{},"slaveDelay":0,"votes":1},{"host":"10.0.2.157:27017","_id":1.0}],"settings":{"chainingAllowed":true,"heartbeatIntervalMillis":2000,"heartbeatTimeoutSecs":10,"electionTimeoutMillis":10000,"catchUpTimeoutMillis":-1,"catchUpTakeoverDelayMillis":30000,"getLastErrorModes":{},"getLastErrorDefaults":{"w":1,"wtimeout":0},"replicaSetId":{"$oid":"60c0b3566991d93637465f55"}}},"lsid":{"id":{"$uuid":"263568b4-ec31-4ea6-8f72-69cec80c1a7c"}},"$db":"admin"},"numYields":0,"reslen":38,"locks":{"ParallelBatchWriterMode":{"acquireCount":{"r":3}},"ReplicationStateTransition":{"acquireCount":{"w":5}},"Global":{"acquireCount":{"r":1,"w":4}},"Database":{"acquireCount":{"w":2,"W":1}},"Collection":{"acquireCount":{"w":2}},"Mutex":{"acquireCount":{"r":2}}},"flowControl":{"acquireCount":2,"timeAcquiringMicros":3},"storage":{},"protocol":"op_msg","durationMillis":151}}
{"t":{"$date":"2021-06-09T12:29:34.940+00:00"},"s":"I", "c":"REPL", "id":21215, "ctx":"ReplCoord-1","msg":"Member is in new state","attr":{"hostAndPort":"10.0.2.157:27017","newState":"STARTUP"}}
{"t":{"$date":"2021-06-09T12:29:34.941+00:00"},"s":"I", "c":"REPL", "id":4508702, "ctx":"conn2","msg":"Waiting for the current config to propagate to a majority of nodes"}
{"t":{"$date":"2021-06-09T12:33:55.701+00:00"},"s":"I", "c":"CONTROL", "id":20712, "ctx":"LogicalSessionCacheReap","msg":"Sessions collection is not set up; waiting until next sessions reap interval","attr":{"error":"ShardingStateNotInitialized: sharding state is not yet initialized"}}
{"t":{"$date":"2021-06-09T12:33:55.701+00:00"},"s":"I", "c":"CONTROL", "id":20714, "ctx":"LogicalSessionCacheRefresh","msg":"Failed to refresh session cache, will try again at the next refresh interval","attr":{"error":"ShardingStateNotInitialized: sharding state is not yet initialized"}}
{"t":{"$date":"2021-06-09T12:34:35.029+00:00"},"s":"I", "c":"CONNPOOL", "id":22572, "ctx":"MirrorMaestro","msg":"Dropping all pooled connections","attr":{"hostAndPort":"10.0.2.157:27017","error":"ShutdownInProgress: Pool for 10.0.2.157:27017 has expired."}}
Additional details:
Shard_0:PRIMARY> rs.printSlaveReplicationInfo()
WARNING: printSlaveReplicationInfo is deprecated and may be removed in the next major release. Please use printSecondaryReplicationInfo instead.
source: 10.0.2.157:27017
syncedTo: Thu Jan 01 1970 00:00:00 GMT+0000 (UTC) 1623243005 secs (450900.83 hrs) behind the primary
Able to reach the node via port 27017
telnet 10.0.2.157 27017
Trying 10.0.2.157...
Connected to 10.0.2.157.
Escape character is '^]'.
My config file
net:
bindIp: 0.0.0.0
port: 27017
ssl: {}
processManagement:
fork: "true"
pidFilePath: /var/run/mongodb/mongod.pid
replication:
replSetName: Shard_0
security:
authorization: enabled
keyFile: /etc/zzzzzkey.key
setParameter:
authenticationMechanisms: SCRAM-SHA-256
sharding:
clusterRole: shardsvr
storage:
dbPath: /data/dbdata
engine: wiredTiger
systemLog:
destination: file
path: /data/log/mongodb.log
I'm initializing replicaset using below cmd
mongo --host 127.0.0.1 --port {{mongod_port}} --eval 'printjson(rs.initiate())'
Not sure what causing this issue. Could you please help me

Answer 1

The command looks a bit strange:
{
"replSetReconfig": {
"_id": "Shard_0",
"members": [
{ "_id": 0, "host": "MongoD-1:27017", "arbiterOnly": false, "hidden": false, "priority": 1.0, "slaveDelay": 0, "votes": 1 },
{ "_id": 1.0, "host": "10.0.2.157:27017" }
],
}
}
Why do you name your replica set Shard_0? Do you try to setup a Sharded Cluster?
You add _id: 0, host: "MongoD-1:27017" and _id: 1.0, host: "10.0.2.157:27017" which is not consistent, i.e. you mixed IP-Address and hostname. Also _id "0" and "1.0" is confusing.
How does your config files look like and how did you start the MongoDB services?