一、系統環境
CentOS 6.8_x64
官方參考文檔https://docs.mongodb.org/manual/reference/glossary/#term-init-script

二、添加官方yum庫
#cd /etc/yum.repo.d/
#vim mongodb.repo

[mongodb-org-3.0]
name=MongoDB Repository
baseurl=https://repo.mongodb.org/yum/redhat/$releasever/mongodb-org/3.0/x86_64/
gpgcheck=0
enabled=1

三、安裝配置
1、安裝並創建數據目錄

#yum install -y mongodb-org
#mkdir -p /Data/mongodb 
#chown   mongod.mongod /Data/mongodb -R

2、配置mongod.conf
#vim /etc/mongod.conf

# mongod.conf
# for documentation of all options, see:
#   http://docs.mongodb.org/manual/reference/configuration-options/
# where to write logging data.
systemLog:
  destination: file
  logAppend: true
  path: /Data/mongodb/mongod.log    #需要自定義
# Where and how to store data.
storage:
  dbPath: /Data/mongodb/db           #需要自定義
  journal:
    enabled: true
#  engine:
#  mmapv1:
#  wiredTiger:
# how the process runs
processManagement:
  fork: true  # fork and run in background
  pidFilePath: /var/run/mongodb/mongod.pid  # location of pidfile
# network interfaces
net:
  port: 27017
  bindIp: 10.1.0.7  # Listen to local interface only, comment to listen on all interfaces.    需要自定義
#security:
#operationProfiling:
#replication:
#sharding:
# Enterprise-Only Options
#auditLog:

啟動mongod
#service mongod start

四、測試
登錄mongodb
#mongo --host 10.1.0.7
> db.version();
3.0.7
> show dbs
com_ylt_plat_passport 0.078GB
local 0.078GB
chown mongod.mongod /Data/mongodb -R
service mongod start

五、排錯

故障描述 ：
service mongod stop 時發現 並沒有 關閉mongod服務 進程依然在

通過排查發現問題出在/etc/mongod.conf中第24行
pidFilePath: /var/run/mongodb/mongod.pid # location of pidfile

六、解決警告提示
1、問題描述
解決登錄mongo --host 10.1.0.7 --port 27017 類似如下提示

** WARNING: /sys/kernel/mm/transparent_hugepage/enabled is ‘always‘. 和 ** WARNING: /sys/kernel/mm/transparent_hugepage/defrag is ‘always‘.
MongoDB shell version: 3.0.7
connecting to: 10.1.0.7:27017/test
Server has startup warnings:
2016-12-08T16:10:15.638+0800 I CONTROL [initandlisten]
2016-12-08T16:10:15.638+0800 I CONTROL [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/enabled is ‘always‘.
2016-12-08T16:10:15.638+0800 I CONTROL [initandlisten] ** We suggest setting it to ‘never‘
2016-12-08T16:10:15.638+0800 I CONTROL [initandlisten]
2016-12-08T16:10:15.638+0800 I CONTROL [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/defrag is ‘always‘.
2016-12-08T16:10:15.638+0800 I CONTROL [initandlisten] ** We suggest setting it to ‘never‘
2016-12-08T16:10:15.638+0800 I CONTROL [initandlisten]

由於環境為CentOS6.8 所以解決方法如下，其他平臺及版本請參考官方文檔：https://docs.mongodb.org/manual/tutorial/transparent-huge-pages/

2、解決方法：
添加如下腳本
#vim /etc/init.d/disable-transparent-hugepages

#!/bin/sh### BEGIN INIT INFO
# Provides:          disable-transparent-hugepages
# Required-Start:    $local_fs
# Required-Stop:
# X-Start-Before:    mongod mongodb-mms-automation-agent
# Default-Start:     2 3 4 5
# Default-Stop:      0 1 6
# Short-Description: Disable Linux transparent huge pages
# Description:       Disable Linux transparent huge pages, to improve
#                    database performance.
### END INIT INFO
case $1 in 
 start)    
    if [ -d /sys/kernel/mm/transparent_hugepage ]; then      
        thp_path=/sys/kernel/mm/transparent_hugepage    
    elif [ -d /sys/kernel/mm/redhat_transparent_hugepage ]; then 
        thp_path=/sys/kernel/mm/redhat_transparent_hugepage   
    else     
        return 0    
     fi     
        echo ‘never‘ > ${thp_path}/enabled   
        echo ‘never‘ > ${thp_path}/defrag    
        unset thp_path
    ;;
    esac

添加到開機自啟服務

#chmod +x /etc/init.d/disable-transparent-hugepages
#chkconfig --add disable-transparent-hugepages

3、修改系統參數

#mkdir -p /etc/tune-profiles/no-thp
#cd /etc/tune-profiles/no-thp
#echo "set_transparent_hugepages never" > ktune.sh
#chmod +x ktune.sh
#tuned-adm profile no-thp 如果提示找不到命令請執行yum install tuned -y

reboot 系統

4、驗證：

$mongo --host 10.1.0.7 --port 27017

MongoDB shell version: 3.0.7

connecting to: 10.1.0.7:27017/test

>

5、出現如下錯誤：

** WARNING: soft rlimits too low. rlimits set to 1024 processes, 64000 files. Number of processes should be at least 32000 : 0.5 times number of files.

#vim /etc/security/limits.conf

添加：

mongod soft nofile 64000

mongod hard nofile 64000

mongod soft nproc 32000

mongod hard nproc 32000

重啟mongod

到此mongod安裝完成~如有錯誤之處歡迎指正！

本文出自 “學地止境” 博客，請務必保留此出處http://dyc2005.blog.51cto.com/270872/1942438

CentOS6.8安裝mongodb3.0並添加到系統服務