MongoDB-分片（Sharding）部署

#具体目录可以根据实际情况调整，只要和下面的配置文件对应即可。 

# 创建数据和日志目录
mkdir -p /mongodb/{config,shard,mongos}/{data,logs}
mkdir -p /mongodb/config/{cfg1,cfg2,cfg3}
mkdir -p /mongodb/shard/{shard1,shard2,shard3}

vi /etc/mongod-config.conf

# 配置服务器配置
systemLog:
  destination: file
  path: /mongodb/config/logs/config.log
  logAppend: true

storage:
  dbPath: /mongodb/config/data
  wiredTiger:
    engineConfig:
      cacheSizeGB: 1

net:
  bindIp: 0.0.0.0
  port: 27019

processManagement:
  pidFilePath: /run/config.pid

sharding:
  clusterRole: configsvr

replication:
  replSetName: configReplSet

#具体看你的二进制文件位置 
mongod -f /etc/mongod-config.conf

# 连接到任意配置服务器
mongosh --host 192.168.31.211 --port 27019

# 初始化副本集
test> rs.initiate({
...   _id: "configReplSet",
...   members: [
...     { _id: 0, host: "192.168.31.211:27019"},
...     { _id: 1, host: "192.168.31.212:27019" },
...     { _id: 2, host: "192.168.31.213:27019" }
...   ]
... })
{ ok: 1 }
configReplSet [direct: other] test> 

vi /etc/mongod-shard.conf

systemLog:
  destination: file
  path: /mongodb/shard/logs/shard.log
  logAppend: true

storage:
  dbPath: /mongodb/shard/data
  wiredTiger:
    engineConfig:
      cacheSizeGB: 2

net:
  bindIp: 0.0.0.0
  port: 27018

processManagement:
  pidFilePath: /run/shard1.pid

sharding:
  clusterRole: shardsvr

replication:
  replSetName: shard

#具体看你的二进制文件位置 
mongod -f /etc/mongod-shard.conf

# 连接到第一个分片
mongosh --host 192.168.31.211 --port 27018

# 初始化副本集
test> rs.initiate({
...   _id: "shard",
...   members: [
...     { _id: 0, host: "192.168.31.211:27018"},
...     { _id: 1, host: "192.168.31.212:27018"},
...     { _id: 2, host: "192.168.31.213:27018"}
...   ]
... })
{ ok: 1 }
shard [direct: other] test> 

vi /etc/mongos.conf

systemLog:
  destination: file
  path: /mongodb/mongos/logs/mongos.log
  logAppend: true

net:
  bindIp: 0.0.0.0
  port: 27017

processManagement:
  pidFilePath: /run/mongos.pid

sharding:
  configDB: configReplSet/192.168.31.211:27019,192.168.31.212:27019,192.168.31.213:27019

#注意这里和上面使用的二进制不是一个 
mongos -f /etc/mongo.conf