I am running mongodb replicaSet inside docker containers in Windows. This is docker compose file
version: '3'
services:
rs0:
image: mongo:4.4
ports:
- "27018:27017"
command: mongod --replSet rsnmbp
volumes:
- rs0_data:/data/db
- ./nmbprsdata0:/nmbpdata
rs1:
image: mongo:4.4
ports:
- "27019:27017"
command: mongod --replSet rsnmbp
volumes:
- rs1_data:/data/db
- ./nmbprsdata1:/nmbpdata
rs2:
image: mongo:4.4
ports:
- "27020:27017"
command: mongod --replSet rsnmbp
volumes:
- rs2_data:/data/db
- ./nmbprsdata2:/nmbpdata
rs3:
image: mongo:4.4
ports:
- "27021:27017"
command: mongod --replSet rsnmbp
volumes:
- rs3_data:/data/db
- ./nmbprsdata3:/nmbpdata
rs4:
image: mongo:4.4
ports:
- "27022:27017"
command: mongod --replSet rsnmbp
volumes:
- rs4_data:/data/db
- ./nmbprsdata4:/nmbpdata
volumes:
rs0_data:
rs1_data:
rs2_data:
rs3_data:
rs4_data:
Replica set is configured via
rsconf = {
_id: "rsnmbp",
members: [
{
_id: 0,
host: "rs0:27017"
},
{
_id: 1,
host: "rs1:27017"
},
{
_id: 2,
host: "rs2:27017"
},
{
_id: 3,
host: "rs3:27017"
},
{
_id: 4,
host: "rs4:27017"
},
]
}
rs.initiate(rsconf)
I am trying to connect to replica set via mongoose in node.js
const DB_URI = 'mongodb://localhost:27018,localhost:27019,localhost:27020,localhost:27021,localhost:27022/test'
mongoose.connect(DB_URI)
.then((result) =>console.log ("connected to database"))
.catch((err) =>console.log (err))
but I am receiving following error
MongooseServerSelectionError: getaddrinfo ENOTFOUND rs0
...
reason: TopologyDescription {
type: 'ReplicaSetNoPrimary',
servers: Map(5) {
'rs0:27017' => [ServerDescription],
'rs1:27017' => [ServerDescription],
'rs2:27017' => [ServerDescription],
'rs3:27017' => [ServerDescription],
'rs4:27017' => [ServerDescription]
},
stale: false,
compatible: true,
heartbeatFrequencyMS: 10000,
localThresholdMS: 15,
setName: 'rsnmbp',
maxSetVersion: 1,
maxElectionId: new ObjectId("7fffffff0000000000000003"),
commonWireVersion: 9,
logicalSessionTimeoutMinutes: undefined
}
}
I have added following lines to etc/hosts on Windows
127.0.0.1 rs0
127.0.0.1 rs1
127.0.0.1 rs2
127.0.0.1 rs3
127.0.0.1 rs4
and changed const DB_URI to
const DB_URI = 'mongodb://rs0:27018,rs1:27019,rs2:27020,rs3:27021,rs4:27022/test'
but now I am receiving following error
MongooseServerSelectionError: Server selection timed out after 30000 ms
...
reason: TopologyDescription {
type: 'ReplicaSetNoPrimary',
servers: Map(0) {},
stale: false,
compatible: true,
heartbeatFrequencyMS: 10000,
localThresholdMS: 15,
setName: 'rsnmbp',
maxSetVersion: 1,
maxElectionId: new ObjectId("7fffffff0000000000000003"),
commonWireVersion: 9,
logicalSessionTimeoutMinutes: undefined
}
}
How can I connect to this replicaSet with mongoose in node.js Thanks in advance.
You must use one Replica set & a Replica set can have multiple members. and make sure that you have added Replica set nodes in the host machine in etc/hosts file. Just like the below example -
127.0.0.1 mongoset1 mongoset2 mongoset3
Note - 127.0.0.1 is your host machine and mongoset1, mongoset2 and mongoset3 are the nodes (members) of the replicaset.
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