MongoDB cluster deployment

Question

I am new to MongoDB. I am trying to deploy a MongoDB cluster. I am following:

https://docs.mongodb.org/manual/tutorial/deploy-shard-cluster/

I initiated Config Server Replica Set and after that I tried to addShard but I receive always error:

mongos> sh.addShard("rs1/10.1.10.12:27017,10.1.10.13:27017,10.1.10.14:27017")
{
 "ok" : 0,
 "errmsg" : "could not find host matching read preference { mode: \"primary\" } for set rs1",
 "code" : 133
}

I have tried to add a shard but I receive the following error:

mongos> sh.addShard("firstRS/centos-m-1.ovm:27017")
{
 "ok" : 0,
 "errmsg" : "Cannot add firstRS/centos-m-1.ovm:27017 as a shard since it is part of a config server replica set",
 "code" : 96
}

In replicaSet I see:

rs.conf()
{
 "_id" : "firstRS",
 "version" : 3,
 "configsvr" : true,
 "protocolVersion" : NumberLong(1),
 "members" : [
 {
 "_id" : 0,
 "host" : "centos-m-1.ovm:27017",
 "arbiterOnly" : false,
 "buildIndexes" : true,
 "hidden" : false,
 "priority" : 1,
 "tags" : {
 },
 "slaveDelay" : NumberLong(0),
 "votes" : 1
 },
 {
 "_id" : 1,
 "host" : "centos-m-2.ovm:27017",
 "arbiterOnly" : false,
 "buildIndexes" : true,
 "hidden" : false,
 "priority" : 1,
 "tags" : {
 },
 "slaveDelay" : NumberLong(0),
 "votes" : 1
 },
 {
 "_id" : 2,
 "host" : "centos-m-3.ovm:27017",
 "arbiterOnly" : false,
 "buildIndexes" : true,
 "hidden" : false,
 "priority" : 1,
 "tags" : {
 },
 "slaveDelay" : NumberLong(0),
 "votes" : 1
 }
 ],
 "settings" : {
 "chainingAllowed" : true,
 "heartbeatIntervalMillis" : 2000,
 "heartbeatTimeoutSecs" : 10,
 "electionTimeoutMillis" : 10000,
 "getLastErrorModes" : {
 },
 "getLastErrorDefaults" : {
 "w" : 1,
 "wtimeout" : 0
 },
 "replicaSetId" : ObjectId("572e55c00408eaa72066cef3")
 }
}

I cannot understand. Could you help me?

MongoDB shell version: 3.2.6
connecting to: 10.1.10.12:28017/test

mongos> rs.status()
{
 "info" : "mongos",
 "ok" : 0,
 "errmsg" : "replSetGetStatus is not supported through mongos"
}

If I connect to config server and I give: rs.status() I found all nodes with one node highlighted as PRIMARY. After than I try to connect to a mongos instances and I try to add a shard:

sh.addShard( "rs1/10.1.10.14:28017" )

and I get error I reported previously and in log I found:

2016年05月06日T12:37:33.787Z W NETWORK [conn1] No primary detected for set rs1
2016年05月06日T12:37:33.787Z I NETWORK [conn1] All nodes for set rs1 are down. This has happened for 1 checks in a row. Polling will stop after 29 more failed checks

• Stennie: Were you able to work out the issue? The error messages relate to the replica set rs1 that you are trying to add (apparently rs1 did not have a primary when you tried to add?). If your config server is called firstRS, you should make sure the mongos is started up with a command line similar to: mongos --configdb firstRS/<cfgsvr1:port1>,<cfgsvr2:port2>,<cfgsvr3:port3>

Answer 1

creat three replica set with different port number and then try

• ypercubeᵀᴹ: and then try ... what exactly?