errmsg" : "No host described in new configuration 1 for replica set rs0 maps to this node", Why I am getting this message?
Solution 1
I just ran into this issue, and in my case the symptoms were that everything worked correctly, until I rebooted the server.
Then I would get the following error: NodeNotFound: No host described in new configuration $id for replica set $name maps to this node
Just restarting the mongodb daemon fixed it, so it couldn't be a replica set configuration issue.
After checking the logs a bit more in detail, I noticed the following error message: NETWORK [replexec-0] getaddrinfo("$name.emilburzo.com") failed: Temporary failure in name resolution
-> bingo
It was trying to query the hostname before the network was fully up, and thus the replica set member didn't know it's own identity
Adding the server's FQDN hostname to /etc/hosts
fixed it, e.g.:
127.0.1.1 shortname shortname.fqdn.com
Solution 2
Looks like the port is wrong. The default port of MongoDB is 27017, not 27071.
Solution 3
if you are using mongo.conf file then initially comment "replication" section like below,
...
#operationProfiling:
# replication:
# replSetName: rs0-here
#sharding:
...
Now run mongod and configure replica set on mongo terminal like below,
rs.initiate({_id: "rs0-here", version: 1, members: [{ _id: 0, host : "your_host:27017" }]})
You can also create users and databases here and then exit out of it. Uncomment the following section in mongo.conf,
replication:
replSetName: rs0-here
run mongod again and then this issue should go away.
Related videos on Youtube
![Shashank](https://lh4.googleusercontent.com/-_SPjtFn5YOo/AAAAAAAAAAI/AAAAAAAADPQ/dp5-QpBOYVg/photo.jpg?sz=256)
Shashank
Updated on July 09, 2022Comments
-
Shashank almost 2 years
I am getting this message every time I do
rs.initiate()
:No host described in new configuration 1 for replica set rs0 maps to this node
This is how my /etc/hosts/ file looks on both the replica set servers.
Server 1 and server 2 "hosts" file
127.0.0.1 localhost
aa.bb.cc.dd DataMongo1
ee.ff.gg.hh DataMongo2Server 1-mongod.conf file
bind-ip aa.bb.cc.dd
Server 2 -mongod.conf file
bind-ip ee.ff.gg.hh
changed server1 hostname to DataMongo1 and server2 to DataMongo2
$hostname DataMongo1
Port 27071 is uncommented on both servers
ReplicaSet config file:
cfg= {
_id:"rs0",
members:[{_id:0,host:"DataMongo1:27071"},{_id:1,host:"DataMongo2:27071"}]}Please help me with this issue.
-
wdberkeley over 9 yearsLooks like it didn't make it in. I think the problem is likely that the hostname one of the machines is assigned in the config isn't what
hostname -f
returns, so the machine doesn't recognize itself. -
austin over 8 yearsi think you need to add the hostname in the hosts file Check this answer
-