MongoDB service doesn't start. errno:13 Permis

Question

I have installed MongoDB on a Ubuntu server like is indicated in the docs http://docs.mongodb.org/manual/tutorial/install-mongodb-on-ubuntu/. Then, I have modified the configuration file /etc/mongod.conf for, later, run a mongod service.

MongoDB runs correctly if I execute:

sudo mongod -f /etc/mongod.conf

But MongoDB stops if I execute:

sudo service mongod start

In the config file /etc/mongod.conf I changed only this:

dbpath=/data/db
logpath=/root/logs/mongod.log
port=20000

With this configuration, the log file is not created too.

If I don't modify the previous values indicated, the service starts correctly. The default values are:

dbpath=/var/lib/mongodb
logpath=/var/log/mongodb/mongod.log
port = 27017

Because the log file is not created with the custom configuration, I have only changed the dbpath for see the error:

[initandlisten] exception in initAndListen: 10309 Unable to create/open lock file: /data/db/mongod.lock errno:13 Permission denied Is a mongod instance already running?

I tried to run the following commands but without success:

sudo chown -R `id -u` /data/db

sudo rm /var/lib/mongodb/mongod.lock
mongod --repair

Stack:

• Ubuntu 14.10
• MongoDB 2.6.5

Answer 1

We must make all the directories/files owned by mongod user. For this:

sudo chown -R mongodb:mongodb /data/db