问题
I have setup a MongoDB replica set with 3 nodes(vm's running CentOS). One node became Primary other 2 stuck in Startup. When these 2 nodes will change their states from startup to secondary.
aryabhata:PRIMARY> rs.status()
{
"set" : "aryabhata",
"date" : ISODate("2016-04-30T08:10:45.173Z"),
"myState" : 1,
"members" : [
{
"_id" : 0,
"name" : "localhost.localdomain:27017",
"health" : 1,
"state" : 1,
"stateStr" : "PRIMARY",
"uptime" : 69091,
"optime" : Timestamp(1461935462, 1),
"optimeDate" : ISODate("2016-04-29T13:11:02Z"),
"electionTime" : Timestamp(1461934754, 1),
"electionDate" : ISODate("2016-04-29T12:59:14Z"),
"configVersion" : 459192,
"self" : true
},
{
"_id" : 1,
"name" : "repset1.com:27017",
"health" : 1,
"state" : 0,
"stateStr" : "STARTUP",
"uptime" : 92,
"optime" : Timestamp(0, 0),
"optimeDate" : ISODate("1970-01-01T00:00:00Z"),
"lastHeartbeat" : ISODate("2016-04-30T08:10:44.485Z"),
"lastHeartbeatRecv" : ISODate("1970-01-01T00:00:00Z"),
"pingMs" : 0,
"configVersion" : -2
},
{
"_id" : 2,
"name" : "repset2.com:27017",
"health" : 1,
"state" : 0,
"stateStr" : "STARTUP",
"uptime" : 68382,
"lastHeartbeat" : ISODate("2016-04-30T08:10:43.974Z"),
"lastHeartbeatRecv" : ISODate("1970-01-01T00:00:00Z"),
"pingMs" : 0,
"configVersion" : -2
}
],
"ok" : 1
}
回答1:
From primary check whether you are able to connect to secondary
mongo --host repset1.com --port 27017
When the above one fails may be firewall or BindIP issue.
Check bind_ip (should be 0.0.0.0, change in mongodb.conf is it's 127.0.0.1):
netstat -plunt | grep :27017 | grep LISTEN
Look at the log-files of secondaries, why they are stuck. Did they receive the configuration details?
Try to reconfigure, see mongo replicaset reconfigure
回答2:
For me the problem was that primary had authorization enabled. In this case the secondaries always stayed in STARTUP
.
To use authorization you need to set keyFile
in configuration file of all nodes (primary and secondary).
Create mongodb key file on linux:
openssl rand -base64 741 > mongodb.key
chmod 600 mongodb.key
chown mongod:mongod mongodb.key
mongod.conf file:
replication:
replSetName: rs0
security:
authorization: enabled
keyFile: /home/mongodb.key
Source MongoDB replica set with simple password authentication
来源:https://stackoverflow.com/questions/36952564/monogodb-replica-set-status-not-changing-from-startup-to-secondary