mongodb replication in sharded machine

0
votes

I have done Replication in one single machine with three different port(Say 27018[master],27019,27020). Also I have done Sharding in one single machine with two different port(Say 27021,27022).

Now I have to implement replication for the sharded machine port. I need to implement replication for 27021 and 27022. How can I do this? Please help me to resolve this issue.

Steps followed :

Part 1: Set up 3 port for replication

  1. mongod --replSet rs0
  2. mongod --port 27018 --dbpath F:\Data1 --replSet rs0
  3. mongod --port 27020 --dbpath F:\Data2 --replSet rs0
  4. mongo localhost:27017
  5. rs.initiate()
  6. rs.add("ComputerName:27018")
  7. rs.add("ComputerName:27020")

Part 2: Now set up for sharding

  1. mongod --configsvr --replSet configReplSet
  2. mongod --port 27021 --dbpath F:\Data4 --replSet configReplSet
  3. mongod --port 27025 --dbpath F:\Data5 --replSet configReplSet
  4. mongo 127.0.0.1:27019
  5. rs.initiate({_id:"configReplSet",configsvr:true,members:[{_id: 0,host: "127.0.0.1:27021"},{_id:1,host: "127.0.0.1:27025"}]})

When I run this code I am getting an error:

{
    "ok" : 0,
    "errmsg" : "No host described in new configuration 1 for replica set configReplSet maps to this node",
    "code" : 93
}

So remaining steps I am not able to execute. Any idea how can I overcome this issue?

1
mongodbreplicationsharding
Can you add your tries? - love gupta
@lovegupta I tried this link docs.mongodb.com/v3.2/tutorial/… But the issue I faced in rs.initiate( { _id: "configReplSet", configsvr: true, members: [ { _id: 0, host: "mongodb07.example.net:27019" }, { _id: 1, host: "mongodb08.example.net:27019" }, { _id: 2, host: "mongodb09.example.net:27019" } ] } ) and mongos --configdb configReplSet/mongodb07.example.net:27019,mongodb08.example.net:27019,mongodb09.example.net:27019 --chunkSize 1 The sharding environment is not able to set.. - Vinitha
Please let me know if I need to provide my tries step wise step. - Vinitha
@Vinitha Yes, it would be useful if you could list the steps you've tried. Remember that you are encouraged to edit your question to improve it as much as possible. - Vince Bowdren
@Vinitha can you just help me with the mongo version and your machine config. I am specifically looking for 32 bit/64 bit and koee interested in the storage engine you are using. I think i got the issue. - love gupta

1 Answers

0
votes

Got one method to achieve my requirement. Steps as follows

Config Server and its replication

  • mongod --configsvr --dbpath F:\Data1\configdb\ --replSet rs2 --port 27017
  • mongod --configsvr --dbpath F:\Data2\configdb\ --replSet rs2 --port 27018
  • mongod --configsvr --dbpath F:\Data3\configdb\ --replSet rs2 --port 27019
  • mongo machineip:27017
  • config= {_id:"rs2", members :[{ _id:0, host:'10.18.0.225:27017'}, {_id:1, host:'10.18.0.225:27018'}, {_id:2, host:'10.18.0.225:27019'}]}
  • rs.initiate (config)
  • rs.status()

Routing Server

  • mongos -configdb machineip:27017 --port 27020

Shard1 and its replication

  • mongod --dbpath F:\Data4\db\ --shardsvr --replSet rs0 --port 27021
  • mongod --dbpath F:\Data5\db\ --shardsvr --replSet rs0 --port 27022
  • mongod --dbpath F:\Data6\db\ --shardsvr --replSet rs0 --port 27023

Shard2 and its replication

  • mongod --dbpath F:\Data7\db\ --shardsvr --replSet rs1 --port 27024
  • mongod --dbpath F:\Data8\db\ --shardsvr --replSet rs1 --port 27025
  • mongod --dbpath F:\Data9\db\ --shardsvr --replSet rs1 --port 27026

Replication configuration for Shard1

  • mongo machineip:27021
  • config= {_id:"rs0", members :[{ _id:0, host:'machineip:27021'},{_id:1,host:'machineip:27022'},{_id:2,host:'machineip:27023'}]}
  • rs.initiate(config)
  • rs.status()

Replication configuration for Shard2

  • mongo machineip:27024
  • config= {_id:"rs0", members :[{ _id:0, host:'machineip:27024''},{_id:1,host:'machineip:27025''},{_id:2,host:'machineip:27026''}]}
  • rs.initiate(config)
  • rs.status()

Sharding Configuration in route server

  • sh.status()
  • sh.addShard ("rs0/machineip:27021")
  • sh.addShard ("rs0/machineip:27024")
  • sh.status()
  • sh.enableSharding ("test")
  • sh.shardCollection ("test.stud", {id: 1})
  • sh.status()

Hope this will help :-)