MongoDB service not running in Fedora

Question

Just installed a clean version of mongodb on Fedora 17 64-bit, but the Mongo service wont run.

I followed these instructions during installation

Running

service mongod start

results in

Starting mongod (via systemctl):  Job failed. See system journal and 'systemctl status' for details.  [FAILED]

So I ran

systemctl status mongod.service

which gives me

mongod.service - SYSV: Mongo is a scalable, document-oriented database.
  Loaded: loaded (/etc/rc.d/init.d/mongod)
  Active: failed (Result: exit-code) since Mon, 18 Jun 2012 13:15:56 +0200; 58s ago
 Process: 13584 ExecStart=/etc/rc.d/init.d/mongod start (code=exited, status=1/FAILURE)
  CGroup: name=systemd:/system/mongod.service

Mongo logs in /var/log/mongo/mongod.log is empty

Thanks

Answer 1

How to install mongodb and mongodb-server on fedora linux (verified on f16 & f17). All commands are intended to be run in a su session.

1) make sure you have no mongodb installation lying around

# yum erase mongodb
# yum erase mongo-10gen  (if it is installed)

2) install from fedora yum repository

# yum --disablerepo=* --enablerepo=fedora,updates install mongodb mongodb-server

3) start mongod (mongodb daemon)

# systemctl start mongod.service

4) verify mongod is running

# systemctl status mongod.service
# tail /var/log/mongodb/mongodb.log
# nmap -p27017 localhost

or running client

# mongo
MongoDB shell version: 2.0.2
connecting to: test
> db.test.save( { a: 1 } )
> db.test.find()
{ "_id" : ObjectId("4fdf28f09d16204d66082fa3"), "a" : 1 }

5) customize configuration

# vim /etc/mongodb.conf
# systemctl restart mongod.service

6) make mongodb service automatically start at boot

# systemctl enable mongod.service

Update for Fedora 18

When started for the first time by systemd on a slow or loaded machine, mongod service might timeout before finishing its initialization, with systemd flagging the service as failed.

Symptoms:

# journalctl -xn

-- Unit mongod.service has begun starting up.
10:38:43 local mongod[24558]: forked process: 24560
10:38:43 local mongod[24558]: all output going to: /var/log/mongodb/mongodb.log
10:40:13 local systemd[1]: mongod.service operation timed out. Terminating.
10:40:13 local systemd[1]: Failed to start High-performance, schema-free document-oriented database.
-- Subject: Unit mongod.service has failed

Very easy cure, restart the service:

# systemctl restart mongod.service

this should finish the initialization successfully and leave the daemon in running state.