MongoDB Service Installation

README.md

MongoDB Installation

Official Documentation

• systemd DigitalOcean
• journalctl DigitalOcean

Downloading binary

curl -O https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-3.4.0.tgz

Extracting files

tar -zxvf mongodb-linux-x86_64-3.4.0.tgz

Creating files

sudo mv mongodb-linux-x86_64-3.4.0.tgz /usr/local/mongodb3.4.0
sudo ln -s /usr/local/mongodb3.4.0 /usr/local/mongodb

sudo mkdir /var/{lib,log}/mongodb
sudo mkdir /etc/mongodb

Creating group

sudo useradd -r --home-dir /usr/local/mongodb mongodb

Changing owner

sudo chown -R mongodb:mongodb /usr/local/mongodb3.4.0 /usr/local/mongodb /var/lib/mongodb /var/log/mongodb

Adding configuration

Copy mongod.conf to /etc/mongodb/mongod.conf and mongod.service to /etc/systemd/system/mongod.service

sudo vim /etc/mongodb/mongod.conf
sudo vim /etc/systemd/system/mongod.service

Running service

sudo service mongod start

sudo service mongod status

Output:

● mongod.service - MongoDB service
   Loaded: loaded (/etc/systemd/system/mongod.service; disabled; vendor preset: enabled)
   Active: active (running) since ven. 2016-11-11 20:37:26 CET; 8min ago
     Docs: https://docs.mongodb.org/manual
 Main PID: 2777 (mongod)
   CGroup: /system.slice/mongod.service
           └─2777 /usr/local/mongodb/bin/mongod --quiet --config /etc/mongodb/mongod.conf

nov. 11 20:37:26 sandbox systemd[1]: Started MongoDB service.

Using MongoDB

Add Mongo binary in your global path

vim ~/.bashrc

export PATH=/usr/local/mongodb/bin:$PATH

Reloading bash :

source ~/.bashrc

mongo

Output:

MongoDB shell version: 3.4.0
connecting to: mongodb://127.0.0.1:27017
MongoDB server version: 3.4.0
Server has startup warnings:
2016-11-11T20:37:26.269+0100 I CONTROL  [initandlisten] 
2016-11-11T20:37:26.269+0100 I CONTROL  [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/enabled is 'always'.
2016-11-11T20:37:26.269+0100 I CONTROL  [initandlisten] **        We suggest setting it to 'never'
2016-11-11T20:37:26.269+0100 I CONTROL  [initandlisten] 
2016-11-11T20:37:26.269+0100 I CONTROL  [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/defrag is 'always'.
2016-11-11T20:37:26.269+0100 I CONTROL  [initandlisten] **        We suggest setting it to 'never'
2016-11-11T20:37:26.269+0100 I CONTROL  [initandlisten] 
> 

mongod.conf

# Basic configuration

net:
  port: 27017

storage:
  dbPath: "/var/lib/mongodb"
  directoryPerDB: false

processManagement:
  fork: false

systemLog:
  destination: file
  path: "/var/log/mongodb/mongod.log"
  logAppend: true

mongod.service

[Unit]
Description=MongoDB service
After=network.target
Documentation=https://docs.mongodb.org/manual

[Service]
User=mongodb
Group=mongodb
ExecStart=/usr/local/mongodb/bin/mongod --quiet --config /etc/mongodb/mongod.conf

[Install]
WantedBy=multi-user.target