MongoDB安装部署

MongoDB安装部署

0.安装依赖

[root@redis01 ~]# yum install -y libcurl openssl

1.上传或下载包

#下载地址：https://www.mongodb.com/download-center/community
[root@redis01 ~]# rz mongodb-linux-x86_64-3.6.13.tgz 

2.解压包

[root@redis01 ~]# tar xf mongodb-linux-x86_64-3.6.13.tgz -C /usr/local/
[root@redis01 ~]# ln -s /usr/local/mongodb-linux-x86_64-3.6.13 /usr/local/mongodb

3.配置

#创建目录
[root@redis01 ~]# mkdir /server/mongo_27017/{conf,logs,pid,data} -p

#配置
[root@redis01 ~]# vim /server/mongo_27017/conf/mongodb.conf
systemLog:
  destination: file   
  logAppend: true  
  path: /server/mongo_27017/logs/mongodb.log

storage:
  journal:
    enabled: true
  dbPath: /server/mongo_27017/data
  directoryPerDB: true
  wiredTiger:
     engineConfig:
        cacheSizeGB: 1
        directoryForIndexes: true
     collectionConfig:
        blockCompressor: zlib
     indexConfig:
        prefixCompression: true

processManagement:
  fork: true
  pidFilePath: /server/mongo_27017/pid/mongod.pid

net:
  port: 27017
  bindIp: 127.0.0.1,10.0.0.91
  
  
#配置详解
#日志相关
systemLog:
  #以文件格式存储
  destination: file
  #每次重启，不生成新文件，每次都追加到文件
  logAppend: true
  #指定文件路径
  path: /server/mongo_27017/logs/mongodb.log

#数据部分
storage:
  #数据回滚。类似于mysql的undolog
  journal:
    enabled: true
  #数据目录
  dbPath: /server/mongo_27017/data
  #默认 false，不适用 inmemory engine
  directoryPerDB: true
  #存储引擎
  wiredTiger:
     #存储引擎设置
     engineConfig:
        #想把数据存到缓存，缓存的大小
        cacheSizeGB: 1
        #设置一个库就是一个目录，关闭就全放到一个目录下，很乱
        directoryForIndexes: true
     #压缩相关
     collectionConfig:
        blockCompressor: zlib
     #索引压缩（与压缩一起使用）
     indexConfig:
        prefixCompression: true
#守护进程的模式
processManagement:
  fork: true
  #指定pid文件
  pidFilePath: /server/mongo_27017/pid/mongod.pid
#指定端口和监听地址
net:
  port: 27017
  bindIp: 127.0.0.1,10.0.0.91

4.启动

[root@redis01 ~]# /usr/local/mongodb/bin/mongod -f /server/mongo_27017/conf/mongodb.conf 
about to fork child process, waiting until server is ready for connections.
forked process: 11547
child process started successfully, parent exiting

#验证启动
[root@redis01 ~]# ps -ef | grep mongo
root      11547      1  6 08:48 ?        00:00:00 /usr/local/mongodb/bin/mongod -f /server/mongo_27017/conf/mongodb.conf

5.配置环境变量

[root@redis01 ~]# vim /etc/profile.d/mongo.sh
export PATH="/usr/local/mongodb/bin:$PATH"

[root@redis01 ~]# source /etc/profile

四、mongo登录警告处理

1.警告一

#访问设置没有被允许
WARNING: Access control is not enabled for the database.

#解决方式：开启安全认证
[root@redis01 ~]# vim /server/mongo_27017/conf/mongodb.conf 
security:
  authorization: enabled

2.警告二

#以root用户运行了
WARNING: You are running this process as the root user, which is not recommended.

#解决方式：使用普通用户启动
1.先关闭mongodb
[root@redis01 ~]# mongod -f /server/mongo_27017/conf/mongodb.conf --shutdown
2.创建mongo用户
[root@redis01 ~]# useradd mongo
[root@redis01 ~]# echo '123456'|passwd --stdin mongo
Changing password for user mongo.
passwd: all authentication tokens updated successfully.
3.授权目录
[root@redis01 ~]# chown -R mongo.mongo /usr/local/mongodb/
[root@redis01 ~]# chown -R mongo.mongo /server/mongo_27017/
4.重新启动
[root@redis01 ~]# su - mongo
Last login: Wed May 27 09:07:51 CST 2020 on pts/1
[mongo@redis01 ~]$ mongod -f /server/mongo_27017/conf/mongodb.conf

3.警告三、四

#你使用的是透明大页，可能导致mongo延迟和内存使用问题。
WARNING: /sys/kernel/mm/transparent_hugepage/enabled is 'always'.
       We suggest setting it to 'never'
WARNING: /sys/kernel/mm/transparent_hugepage/defrag is 'always'.
       We suggest setting it to 'never'

#解决方法：执行 echo never > /sys/kernel/mm/transparent_hugepage/enabled 修复该问题
#         执行 echo never > /sys/kernel/mm/transparent_hugepage/defrag 修复该问题

#配置之后重启
[root@redis01 ~]# su - mongo
[mongo@redis01 ~]$ mongod -f /server/mongo_27017/conf/mongodb.conf --shutdown
[mongo@redis01 ~]$ mongod -f /server/mongo_27017/conf/mongodb.conf

#这样设置是临时的，我们要把他加到 rc.local，在授个权

4.警告五

#rlimits太低，MongoDB的软件进程被限制了，MongoDB希望自己是最少rlimits 32767.5
WARNING: soft rlimits too low. rlimits set to 7837 processes, 65535 files. Number of processes should be at least 32767.5 : 0.5 times number of files.

#解决方法：
[root@redis01 ~]# vim /etc/profile
ulimit -f unlimited
ulimit -t unlimited
ulimit -v unlimited
ulimit -n 65535
ulimit -m unlimited
ulimit -u 65535

[root@redis01 ~]# vim /etc/security/limits.d/20-nproc.conf
*          soft    nproc     65535
root       soft    nproc     unlimited

[root@redis01 ~]# source /etc/profile