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What is the correct way to ensure `mongod` starts on system startup in 16.04?

rated 0 times [ 6] [ 0] / answers: 1 / hits: 55318 / 3 Years ago, sat, october 23, 2021, 4:57:04

I installed MongoDB through the software centre in Ubuntu 16.04:

mongodb 1:2.6.10-0ubuntu1

I believe this currently contains MongoDB 2.6.10.

I am running an application on apache2 localhost setup and have to start mongod manually each time the system starts with:

mongod

I want it to start automatically.

I've come across two main methods to do this:

update-rc.d mongodb defaults

from: https://askubuntu.com/a/89914/367134

which results in:

update-rc.d mongodb defaults

insserv: fopen(.depend.stop): Permission denied

But this didn't produce error:

sudo update-rc.d mongodb defaults

I've also seen a few references to edit the "MongoDB config file", but I'm not sure what this refers to as I can see config files in more than one location:

/etc/mongodb.conf

/etc/init/mongodb.conf

/etc/init.d/mongodb

And, once in the correct file, I'm not sure what to change in there.

In /etc/init/mongodb.conf I can see:

start on runlevel [2345]

stop on runlevel [!2345]

What is the correct way to ensure mongod starts on system startup in 16.04?

I've been reading this, and looked in /etc/rc2.d and can see:

S01mongodb@                       --> /etc/init.d/mongodb

Update:

After running suggestion:

sudo systemctl enable mongodb

and then restarting, running systemctl status mongodb returns:

* mongodb.service - An object/document-oriented database

   Loaded: loaded (/lib/systemd/system/mongodb.service; enabled; vendor preset: enabled)

   Active: failed (Result: exit-code) since Mon 2016-04-18 23:42:28 AEST; 7min ago

     Docs: man:mongod(1)

  Process: 655 ExecStart=/usr/bin/mongod --config /etc/mongodb.conf (code=exited, status=100)

 Main PID: 655 (code=exited, status=100)



Apr 18 23:42:27 me-comp systemd[1]: Started An object/document-oriented database

Apr 18 23:42:28 me-comp systemd[1]: mongodb.service: Main process exited, code=exited, status=100/n/a

Apr 18 23:42:28 me-comp systemd[1]: mongodb.service: Unit entered failed state.

Apr 18 23:42:28 me-comp systemd[1]: mongodb.service: Failed with result 'exit-code'.

Permission Troubleshooting

/var/lib/mongodb = drwxr-xr-x mongodb mongodb.

/var/log/mongodb = drwxr-xr-x mongodb mongodb.

/var/log/mongodb/mongodb.log = -rw-r--r-- mongodb nogroup.

/var/log/mongodb/mongod.log = -rw-r--r-- mongodb mongodb.

/data/db/mongod.lock = -rwxrwxr-x me me and 0 bytes.

/data = drwxr-xr-x root root.

/data/db = drwxr-xr-x me root.

Config File Contents

/etc/mongodb.conf:

# Where to store the data.

dbpath=/var/lib/mongodb



#where to log

logpath=/var/log/mongodb/mongodb.log



logappend=true



bind_ip = 127.0.0.1

#port = 27017 ...

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wenceslockro

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1 Year ago

answered 3 Years ago cisccla · Accepted Answer

Installing

This is the method I ended up using (from user Adam C's comment re: using more up to date version of mongodb). It worked for me but I'm not an authority on the matter.

https://askubuntu.com/a/757385/367134

Then I had to make a service file, see:

https://askubuntu.com/a/694226/367134

And edit the path in that service file from:

/etc/mongodb.conf

to:

/etc/mongod.conf

And then make mongodb start on system startup with:

sudo systemctl enable mongodb

see:

https://www.digitalocean.com/community/tutorials/how-to-use-systemctl-to-manage-systemd-services-and-units

Now mongodb is starting on 16.04 system startup.

Uninstalling Old MongoDB

Before I did that however, I had to remove the existing installs and directories, which i did like this (steps mainly from https://askubuntu.com/a/497144/367134):

# go to /etc/apt/sources.list.d and remove any mongodb lists, then:



# sanity check - see what is installed

sudo dpkg -l | grep mongo



# remove all packages 

sudo apt-get remove mongodb* --purge

sudo apt-get autoremove



# remove old directories

sudo rm -r -f /var/lib/mongodb/

sudo rm -r -f /var/log/mongodb/