【基础设施】【linux下在单机搭建MongoDB集群】【权限系统】

跟redis相比，网上MongoDB的文章比较少，MongoDB集群的搭建大部分是多机器部署，为了测试方便，需要在本地机器部署MongoDB集群，参考了很多文章，终于搭建成功，记录下相关步骤。

需要注意的是，MongoDB更新很快，很多文章的语法过时，建议参考看官网文档，

环境版本：

mongodb 3.4.6

Centos 7.5

1、安装mongodb

#解压
tar -xzvf mongodb-linux-x86_-3.4.6.tgz  
#改名
mv mongodb-linux-x86_-3.4.6  ../mongodb

#配置环境变量
vim /etc/profile
export MONGODB_HOME=/opt/mongodb
export PATH=$MONGODB_HOME/bin:$PATH
source /etc/profile

mkdir -p /opt/mongodb/conf
mkdir -p /opt/mongodb/config1/data
mkdir -p /opt/mongodb/config1/log
mkdir -p /opt/mongodb/config2/data
mkdir -p /opt/mongodb/config2/log
mkdir -p /opt/mongodb/config3/data
mkdir -p /opt/mongodb/config3/log
mkdir -p /opt/mongodb/mongos1/log
mkdir -p /opt/mongodb/mongos2/log
mkdir -p /opt/mongodb/mongos3/log
mkdir -p /opt/mongodb/shard1a/data
mkdir -p /opt/mongodb/shard1a/log
mkdir -p /opt/mongodb/shard1b/data
mkdir -p /opt/mongodb/shard1b/log
mkdir -p /opt/mongodb/shard1c/data
mkdir -p /opt/mongodb/shard1c/log
mkdir -p /opt/mongodb/shard2a/data
mkdir -p /opt/mongodb/shard2a/log
mkdir -p /opt/mongodb/shard2b/data
mkdir -p /opt/mongodb/shard2b/log
mkdir -p /opt/mongodb/shard2c/data
mkdir -p /opt/mongodb/shard2c/log
mkdir -p /opt/mongodb/shard3a/data
mkdir -p /opt/mongodb/shard3a/log
mkdir -p /opt/mongodb/shard3b/data
mkdir -p /opt/mongodb/shard3b/log
mkdir -p /opt/mongodb/shard3c/data
mkdir -p /opt/mongodb/shard3c/log

2、config server配置服务器

mongodb3.4以后要求配置服务器也创建副本集，不然集群搭建不成功。

添加配置文件

vi /opt/mongodb/conf/config1.conf
##  配置文件内容
systemLog:
    destination: file
    logAppend: true
    path: /opt/mongodb/config1/log/congigsrv.log
storage:
    dbPath: /opt/mongodb/config1/data
    journal:
        enabled: true
processManagement:
    fork: true
    pidFilePath: /opt/mongodb/config1/log/configsrv.pid
net:
    port: 21001
    bindIp: 0.0.0.0
replication:
    replSetName: configs        
sharding:
    clusterRole: configsvr
##  配置文件end

vi /opt/mongodb/conf/config2.conf
##  配置文件内容
systemLog:
    destination: file
    logAppend: true
    path: /opt/mongodb/config2/log/congigsrv.log
storage:
    dbPath: /opt/mongodb/config2/data
    journal:
        enabled: true
processManagement:
    fork: true
    pidFilePath: /opt/mongodb/config2/log/configsrv.pid
net:
    port: 21002
    bindIp: 0.0.0.0
replication:
    replSetName: configs        
sharding:
    clusterRole: configsvr
##  配置文件end

vi /opt/mongodb/conf/config3.conf
##  配置文件内容
systemLog:
    destination: file
    logAppend: true
    path: /opt/mongodb/config3/log/congigsrv.log
storage:
    dbPath: /opt/mongodb/config3/data
    journal:
        enabled: true
processManagement:
    fork: true
    pidFilePath: /opt/mongodb/config3/log/configsrv.pid
net:
    port: 21003
    bindIp: 0.0.0.0
replication:
    replSetName: configs        
sharding:
    clusterRole: configsvr
##  配置文件end

启动三台服务器的config server

mongod -f /opt/mongodb/conf/config1.conf
mongod -f /opt/mongodb/conf/config2.conf
mongod -f /opt/mongodb/conf/config3.conf
登录任意一台配置