With MongoDB packages, We can easily start and stop mongodb
with service command but we face auto start and stop issue while we install
MongoDB with tarball file.
To automate start/stop mongo activity we can use
shell scripting.
Below is example of shell script which we can use
for MongoDB auto startup and stop process.
First, You need to create scripts
for MongoDB startup and Stop. This is how mine looks like:
- vi /data/users/mongodb/scripts/mongo_start.sh
#!/bin/bash
#
script to start the MongoDB
.
~/.bash_profile
#
start the database
mongod
-f /data/users/mongodb/config/mongod.conf
exit
0
- vi /data/users/mongodb/scripts/mongo_stop.sh
#!/bin/bash
# script to stop the MongoDB
. ~/.bash_profile
# stop the database
ps -ef | grep mongod | grep -v grep | awk '{print
$2}' | xargs kill
exit 0
You see that inside the scripts, we are calling the
.bash_profile file of the user. This is needed to set the MONGO_HOME
environment variable.
Next, give execute rights to the
scripts:
- chmod u+x mongo_stop.sh mongo_start.sh
You could now test these scripts
to see if they correctly shut down and start up your Mongo database.
We will now create a wrapper
script that can be used to schedule as a service.
With user root, create a file called “mongo” under /etc/init.d.
- vi /etc/init.d/mongo
#!/bin/bash
# chkconfig: 345 99 10
# description: mongo auto
start-stop script.
# Set MONGO_OWNER to the user id
of the owner of the
MONGO_OWNER=mongodb
RETVAL=0
case "$1" in
'start')
su -
$MONGO_OWNER -c
"/data/users/mongodb/scripts/mongo_start.sh"
touch
/var/lock/subsys/mongo
;;
'stop')
su -
$MONGO_OWNER -c
"/data/users/mongodb/scripts/mongo_stop.sh"
rm -f
/var/lock/subsys/mongo
;;
*)
echo
$"Usage: $0 {start|stop}"
RETVAL=1
esac
exit $RETVAL
Next, provide required permission
- chmod 750 /etc/init.d/mongo
To create a service
of this script, run the following command
- chkconfig --add mongo
Next, check the script by running
“service mongo stop” or “service mongo start”
from the command line.
After this, it’s time for the final
test: reboot your server and check if your Mongo database is automatically
started after the reboot.
Good luck! :-)
