I CONTROL [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/enabled is 'always'.

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启动mongodb时提示下方信息

Server has startup warnings: 2015-06-18T17:20:17.944+0800 I CONTROL  [initandlisten] 2015-06-18T17:20:17.944+0800 I CONTROL  [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/enabled is 'always'.2015-06-18T17:20:17.944+0800 I CONTROL  [initandlisten] **        We suggest setting it to 'never'2015-06-18T17:20:17.944+0800 I CONTROL  [initandlisten] 2015-06-18T17:20:17.944+0800 I CONTROL  [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/defrag is 'always'.2015-06-18T17:20:17.944+0800 I CONTROL  [initandlisten] **        We suggest setting it to 'never'2015-06-18T17:20:17.944+0800 I CONTROL  [initandlisten]

只需打开/etc/init/mongod.conf文件，将下方的代码添加到chown $DEAMONUSER /var/run/mongodb.pid 和end script.之间即可，注意空格的对齐。

if test -f /sys/kernel/mm/transparent_hugepage/enabled; then   echo never > /sys/kernel/mm/transparent_hugepage/enabledfiif test -f /sys/kernel/mm/transparent_hugepage/defrag; then   echo never > /sys/kernel/mm/transparent_hugepage/defragfi

然后重启mongod服务

deng@deng-Lenovo:~$ sudo service mongod restartmongod stop/waitingmongod start/running, process 26127deng@deng-Lenovo:~$ mongoMongoDB shell version: 3.0.4connecting to: test>

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