mongodb高可用部署linux

準備三臺服務器，部署方案以下：

一、安裝mongodb，詳細不用說；

二、建立實例分別建立目錄config、configServer、shard一、shard二、shard三、logs,分別存放實例配置文件

 

三、配置服務器實例configServer.conf：

systemLog:
  destination: file
  logAppend: true
  path: /usr/local/server/mongodb/logs/configServer.log
storage:
  dbPath: /usr/local/server/mongodb/configServer/data
  journal:
    enabled: true
  directoryPerDB: true                                             #是否一個庫一個文件夾    
  engine: wiredTiger                                               #數據引擎   
  wiredTiger:                                                      #WT引擎配置
    engineConfig:
      cacheSizeGB: 2                                             #設置爲4G,默認爲物理內存的一半
      directoryForIndexes: true                                  #是否將索引也按數據庫名單獨存儲
      journalCompressor: zlib
    collectionConfig:                                             #表壓縮配置
      blockCompressor: zlib
    indexConfig:                                                  #索引配置
      prefixCompression: true
processManagement:	 #進程管理
  fork: true
  pidFilePath: /usr/local/server/mongodb/configServer/mongod.pid
net:
  port: 29004
  bindIp: 0.0.0.0
sharding:
  clusterRole: configsvr
replication:
  replSetName: configReplSet
四、配置路由服務器 mongos.conf

systemLog:
  destination: file
  logAppend: true
  path: /usr/local/server/mongodb/logs/mongos.log
processManagement:	
  fork: true
  pidFilePath: /usr/local/server/mongodb/mongos/mongod.pid
net:
  port: 29005
  bindIp: 0.0.0.0
sharding:
  configdb: configReplSet/192.168.131.8:29004,192.168.131.9:29004,192.168.131.10:29004
五、配置分片服務器shard一、shard二、shard3
配置文件 shard1.conf:

systemLog:
  destination: file
  logAppend: true
  path: /usr/local/server/mongodb/logs/shard1.log
storage:
  dbPath: /usr/local/server/mongodb/shard1/data
  journal:
    enabled: true
  directoryPerDB: true  
  engine: wiredTiger   
  wiredTiger:
    engineConfig:
      cacheSizeGB: 2
      directoryForIndexes: true
      journalCompressor: zlib
    collectionConfig:
      blockCompressor: zlib
    indexConfig:
      prefixCompression: true
processManagement:
  fork: true
  pidFilePath: /usr/local/server/mongodb/shard1/mongod.pid
net:
  port: 29001
  bindIp: 0.0.0.0
replication:
  replSetName: shard1
sharding:
  clusterRole: shardsvr
  archiveMovedChunks: true

配置shard2.conf:

systemLog:
  destination: file
  logAppend: true
  path: /usr/local/server/mongodb/logs/shard2.log
storage:
  dbPath: /usr/local/server/mongodb/shard2/data
  journal:
    enabled: true
  directoryPerDB: true                                             #是否一個庫一個文件夾    
  engine: wiredTiger                                               #數據引擎   
  wiredTiger:
    engineConfig:
      cacheSizeGB: 2
      directoryForIndexes: true
      journalCompressor: zlib
    collectionConfig:
      blockCompressor: zlib
    indexConfig:
      prefixCompression: true
processManagement:	 #進程管理
  fork: true
  pidFilePath: /usr/local/server/mongodb/shard2/mongod.pid
net:
  port: 29002
  bindIp: 0.0.0.0
replication:
  replSetName: shard2
sharding:
  clusterRole: shardsvr
  archiveMovedChunks: true

配置shard3.conf:

systemLog: destination: file logAppend: true path: /usr/local/server/mongodb/logs/shard3.log storage: dbPath: /usr/local/server/mongodb/shard3/data journal: enabled: true directoryPerDB: true #是否一個庫一個文件夾 engine: wiredTiger #數據引擎 wiredTiger: engineConfig: cacheSizeGB: 2 directoryForIndexes: true journalCompressor: zlib collectionConfig: blockCompressor: zlib indexConfig: prefixCompression: true processManagement: #進程管理 fork: true pidFilePath: /usr/local/server/mongodb/shard3/mongod.pid net: port: 29003 bindIp: 0.0.0.0 replication: replSetName: shard3 sharding: clusterRole: shardsvr archiveMovedChunks: true

六、分別啓動mongodb啓動實例

/usr/local/server/mongodb/bin/mongos --config /usr/local/server/mongodb/config/mongos.conf
/usr/local/server/mongodb/bin/mongod --config /usr/local/server/mongodb/config/configServer.conf
/usr/local/server/mongodb/bin/mongod --config /usr/local/server/mongodb/config/shard1.conf
/usr/local/server/mongodb/bin/mongod --config /usr/local/server/mongodb/config/shard2.conf
/usr/local/server/mongodb/bin/mongod --config /usr/local/server/mongodb/config/shard3.conf

七、配置服務器/usr/local/server/mongodb/bin/mongo --port 29004

use admin

添加成員：

rs.initiate(
{
_id: "configReplSet",
configsvr: true,
members: [
{ _id : 1, host : "192.168.131.8:29004", priority: 30 },
{ _id : 2, host : "192.168.131.10:29004", priority: 20 },
{ _id : 3, host : "192.168.131.9:29004", priority: 10 }
]
}
);

八、分別配置分片服務器

/usr/local/server/mongodb/bin/mongo --port 29001 鏈接shard1

use admin;

rs.initiate({_id:'shard1',members:[
{_id:1,host:'192.168.131.8:29001', priority: 30},
{_id:2,host:'192.168.131.10:29001', priority: 20},
{_id:3,host:'192.168.131.9:29001', priority: 0,arbiterOnly: true}
]});
其餘分片服務器同樣配置，略。。。
九、配置路由服務器

/usr/local/server/mongodb/bin/mongo --port 29005；

use admin;

路由服務器註冊分片：
db.runCommand({addshard: "shard1/192.168.131.8:29001,192.168.131.9:29001,192.168.131.10:29001"});
db.runCommand({addshard: "shard2/192.168.131.8:29002,192.168.131.9:29002,192.168.131.10:29002"});
db.runCommand({addshard: "shard3/192.168.131.8:29003,192.168.131.9:29003,192.168.131.10:29003"});
# 查看
db.printShardingStatus()
啓動分片數據庫test：
db.runCommand({enablesharding: "test"});

設置分片鍵：

sh.shardCollection("test.use",{"usename":1});

 

到此配置完成。