MongoDB Sharded Cluster Deployment: Complete Guide with Scripts

Version Matrix

Port Planning

• Config Server (cfg): 17017 / 17018 / 17019
• Shard1: 37017-37019
• Shard2: 47017-47019
• Mongos: 27017

Sharded Cluster Core Components

1. Shards: Nodes that actually store data
2. Config Servers: Stores cluster metadata
3. Mongos: Application access entry point

Config Server Setup

dbpath=config/config1
port=17017
configsvr=true
replSet=configsvr

Initialize

var cfg = {
  "_id":"configsvr",
  "members":[
    {"_id":1,"host":"192.0.2.38:17017"},
    {"_id":2,"host":"192.0.2.38:17018"},
    {"_id":3,"host":"192.0.2.38:17019"}
  ]
};
rs.initiate(cfg);

Mongos Router Node

port=27017
configdb=configsvr/192.0.2.38:17017,192.0.2.38:17018,192.0.2.38:17019

Add Shards

sh.addShard("shard1/192.0.2.38:37017,192.0.2.38:37018,192.0.2.38:37019");
sh.addShard("shard2/192.0.2.38:47017,192.0.2.38:47018,192.0.2.38:47019");

Enable Sharding

sh.enableSharding("wzk_test")
sh.shardCollection("wzk_test.wzk_test_data",{"name": "hashed"})

Error Quick Reference