Mongodb 啟動報錯:"/sys/kernel/mm/transparent_hugepage/enabled is 'always'"

系統內容

Distributor ID: CentOSDescription:    CentOS release 6.7 (Final)Release:    6.7Codename:   Final

問題描述

在系統上安裝mongodb之後報錯。
(安裝教程地址: https://docs.mongodb.com/master/tutorial/install-mongodb-on-red-hat/)

錯誤資訊:
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’
WARNING: soft rlimits too low. rlimits set to 1024 processes, 65535 files. Number of processes should be at least 32767.5 : 0.5 times number of files.
如圖：
解決方案 前兩個warning

sudo echo "never" > /sys/kernel/mm/transparent_hugepage/enabledsudo echo "never" >  /sys/kernel/mm/transparent_hugepage/defrag

第三個warning

vim /etc/security/limits.conf添加一下幾行mongod  soft  nofile  64000mongod  hard  nofile  64000mongod  soft  nproc  32000mongod  hard  nproc  32000

重啟mongod

sudo service mongod restart

成功

重啟成功之後，所有報錯都沒啦，如下

➜  ~ git:(master) mongoMongoDB shell version: 3.2.6connecting to: test>