Arbiter configuration

[Sanjay_Soni]

Getting error while setup Arbiter configuration
command i using for this : mongod --port 27017 --dbpath /home/mongodb/arb --replSet mongocluster --bind_ip localhost

The error i’m getting :

“ctx”:“monitoring-keys-for-HMAC”,“msg”:“Failed to refresh key cache”,“attr”:{“error”:“NotYetInitialized: Cannot use non-local read concern until replica set is finished initializing.”

And in primary node while setup : rs.addArb(“mongoArb:27017”)

I’m getting error on primary node :

{
  “_id” : 4,
  “name” : “MongoArb:27017”,
  “health” : 0,
  “state” : 8,
  “stateStr” : “(not reachable/healthy)”,
  “uptime” : 0,
  “lastHeartbeat” : ISODate(“2022-10-17T13:53:03.212Z”),
  “lastHeartbeatRecv” : ISODate(“1970-01-01T00:00:00Z”),
  “pingMs” : NumberLong(0),
  “lastHeartbeatMessage” : “not running with --replSet”,
  “syncSourceHost” : “”,
  “syncSourceId” : -1,
  “infoMessage” : “”,
  “configVersion” : -1,
  “configTerm” : -1
}

Main error is here : “stateStr” : “(not reachable/healthy)” and “lastHeartbeatMessage” : “not running with --replSet”.

Please help me out to resolve this query. Thanks

[Ramachandra_Tummala]

Issue could be with your bind_ip param
Give localhost,IP addr|hostname

[Sanjay_Soni]

Thanks for reply.

I have run this command on arbiter server:

mongod --port 27017 --dbpath /var/lib/mongodb/arb --replSet mongocluster --bind_ip localhost,XX.XX.X.X

And getting error after running this command:

"ctx":"conn966","msg":"Authentication failed","attr":{"mechanism":"SCRAM-SHA-1","speculative":false,"principalName":"__system","authenticationDatabase":"local","remote":"10.0.0.11:36982","extraInfo":{},"error":"BadValue: SCRAM-SHA-1 is disallowed for cluster authentication"

Because of this getting error on primary node :

“stateStr” : “(not reachable/healthy)”

{
			"_id" : 4,
			"name" : "Citus1:27017",
			"health" : 0,
			"state" : 6,
			"stateStr" : "(not reachable/healthy)",
			"uptime" : 0,
			"lastHeartbeat" : ISODate("2022-10-18T11:03:44.751Z"),
			"lastHeartbeatRecv" : ISODate("1970-01-01T00:00:00Z"),
			"pingMs" : NumberLong(0),
			"lastHeartbeatMessage" : "",
			"authenticated" : false,
			"syncSourceHost" : "",
			"syncSourceId" : -1,
			"infoMessage" : "",
			"configVersion" : -1,
			"configTerm" : -1
		}

Do you have any idea how to solve this ?

[Stennie_X (Stennie)]

Hi @Sanjay_Soni,

@Sanjay_Soni

rs.addArb(“mongoArb:27017”)

Is mongoArb a resolvable hostname (for example, can you ping mongoArb from a command shell?

“stateStr” : “(not reachable/healthy)”,

This error message indicates the hostname is not resolvable or a mongod is not listening on that host:port combination.

“not running with --replSet

This error message indicates there was a heartbeat from a mongod that is running without the replSet parameter, so it will not be able to join the replica set. Perhaps you started your intended primary without the replSet parameter.

@Sanjay_Soni

–bind_ip localhost

If you only bind to a localhost address, this replica set member will only be able to connect to other members on the same host.

Regards,
Stennie