Running mongodb on ubuntu 16.04 LTS
The packages for 3.2+ contain upstart scripts.
First, follow the official instructions to install:
# If you installed the ubuntu package, remove it, if not skip to key import
sudo apt-get remove mongodb
sudo apt-get autoremove
# import key
sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv EA312927
# add trusty repos
echo "deb http://repo.mongodb.org/apt/ubuntu trusty/mongodb-org/3.2 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-3.2.list
# update apt
sudo apt-get update
# install the package
sudo apt-get install -y mongodb-org
Then unmask the mongodb.service job (and enable and start it). I believe it was masked because the package includes an upstart jobs as well, so you wouldn't want both of them to start. In our case, however, this is clearly what we want.
sudo systemctl unmask mongodb
sudo service mongod start
References:
relevant JIRA issue
related question on Ask Ubuntu
Anyone who upgrade or installed Ubuntu 16.04 ( also known as Ubuntu Xenial xerus ) noticed that some of the old services stopped running. This issue is known from version 15.04 but I will focus on the above version.
Such was my case with MongoDB. To make a long story, short, Ubuntu shifted from upstart to systemd. One common solution, to these problems, is to switch back to upstart. I do not consider that option as a real solution, certainly not for the long run.
A real solution ( IMHO ) to the problem is to write systemd script that will start MongodDB. Unfortunately MongoDB guys had yet to supply one.
So I had to write one from scratch. To create one of your own follow these steps:
- switch to root using
sudo su
or use sudo for all the following steps.
create a service script (in this example the name of the service is Mongodb)
nano /lib/systemd/system/mongodb.service
File content should be
[Unit] Description=MongoDB Database Service Wants=network.target After=network.target [Service] ExecStart=/usr/bin/mongod --config /etc/mongod.conf ExecReload=/bin/kill -HUP $MAINPID Restart=always User=mongodb Group=mongodb StandardOutput=syslog StandardError=syslog [Install] WantedBy=multi-user.target
You can also download the file from here:
mongodb.service
Here is a quick description of the important fields:
ExecStart - Is the command to run. Mongo installs itself under /usr/bin and the configuration file is written at /etc
User - The uid of the mongod process.
Group - The gid of the mongod process. Note that the user and group are created by the installation.
Now to start mongodb:
sudo systemctl start mongodb
To stop mongodb service use:
sudo systemctl stop mongodb
To enable mongodb on startup
sudo systemctl enable mongodb.service
If you need to refresh the services use:
sudo systemctl daemon-reload
For People That Want A Fresh Install
I have been struggling with this for 1 hour. Then I found this page Installing is as easy as doing:
sudo apt-get update
sudo apt-get install mongodb
Then to check if everything works:
sudo service mongodb status
Let me know if this works for you!
The latest version of MongoDB does most of things except one thing for now.
After installing the MongoDB on Ubuntu 16.04.x , run the commands as follows:
$ sudo systemctl enable mongod.service
$ sudo systemctl daemon-reload
Now most likely mongod starts on every boot automatically.
This solution also works in case of getting this error:
Failed to start mongod.service: Unit mongod.service not found.
After run the commands above, the commands below start to work:
$ sudo service mongod start
$ mongo
Similarly, the all services installed must be enabled to run. For instance, after installation of Ops Manager (a.k.a MMS) the documentation says to run the commend below.
$ sudo systemctl start mongodb-mms.service
Most likely Ubuntu does not start the service. Because it is not enabled yet. To enable it just run the command below:
$ sudo systemctl enable mongodb-mms.service
$ sudo systemctl daemon-reload
Then try to start the service:
$ sudo systemctl enable mongodb-mms.service
That's all...