Mongo DB Doc Prepared @ AIRTEL for DT Project

MongoDB installation and configuration guide

Note:- Make sure that when u do any configuration on mongo database server. Stop the server before working on it.

1.Use below command to download the mongo database.

curl -O http://downloads.mongodb.org/linux/mongodb-linux-x86_64-2.4.9.tgz

2. Extract the downloded file to specified location

[root@DTdb opt]# tar -zxvf mongodb-linux-x86_64-2.4.9.tgz

3. Rename the extracted file. PFB

[root@DTdb opt]#mv mongodb-linux-i686-2.4.9 mongodb

4. Create directory inside the mongodb folder

[root@DTdb mongodb]# mkdir conf

[root@DTdb mongodb]#mkdir data

5. Create a file under the conf directory

[root@DTdb mongodb]# vim soptree.conf
##insert the below entries on that file.##
verbose = true
vvvv = true
port = 27017
#bind_ip = 127.0.0.1
logpath = /opt/mongodb/db.log
logappend = true
fork = true
auth = true
dbpath = /opt/mongodb/data/

6. Create Rc script for the mongodb

[root@DTdb conf]# vim /etc/init.d/mongodb

#!/bin/bash

#

# mongodb Startup script for the mongodb server

#

# chkconfig: - 64 36

# description: MongoDB Database Server

#

# processname: mongodb

#

# Source function library

. /etc/rc.d/init.d/functions

if [ -f /etc/sysconfig/mongodb ]; then

. /etc/sysconfig/mongodb

fi

prog="mongod"

mongod="/opt/mongodb/bin/mongod -config /opt/mongodb/conf/soptree.conf"

#mongod="/opt/mongodb/bin/mongod"

RETVAL=0

start() {

echo -n $"Starting $prog: "

#daemon $mongod "--fork --logpath /var/log/mongodb.log --logappend 2>&1 >>/var/log/mongodb.log"

daemon $mongod "--fork --logpath /opt/mongodb/db.log --logappend 2>&1 >>/opt/mongodb/db.log"

RETVAL=$?

echo

[ $RETVAL -eq 0 ] && touch /var/lock/subsys/$prog

return $RETVAL

}

stop() {

echo -n $"Stopping $prog: "

killproc $prog

RETVAL=$?

echo

[ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/$prog

return $RETVAL

}

reload() {

echo -n $"Reloading $prog: "

killproc $prog -HUP

RETVAL=$?

echo

return $RETVAL

}

case "$1" in

start)

start

;;

stop)

stop

;;

restart)

stop

start

;;

condrestart)

if [ -f /var/lock/subsys/$prog ]; then

stop

start

fi

;;

reload)

reload

;;

status)

status $mongod

RETVAL=$?

;;

*)

echo $"Usage: $0 {start|stop|restart|condrestart|reload|status}"

RETVAL=1

esac

exit $RETVAL

Then save and quit the file.

7. Copy the database from remote location to this server.

Then do following steps.

1. Shutdown the MongoDB server

1. 1. cd /opt/mongodb/bin
   2. ./mongo
   3. db.shutdownServer()
   4. exit

1. copy existing copy of backup folder into “backup”

1. 1. cd /opt/mongodb/bin
   2. mkdir backup
   3. <copy backup files from source machine to ../bin/backup folder>
   4. ./mongorestore –dbpath /opt/mongodb/data/ -o /opt/mongodb/bin/backup

1. Restart MongoDb server
   1. /etc/init.d/mongodb start

8. Create the user for database. Do following steps.

1. cd /opt/mongodb/bin
2. ./mongo
3. use soptree
4. db.addUser(“admin”,”@irTel#321”)

How to configure Master-Slave for MongoDB:-

Reference:-

https://library.linode.com/databases/mongodb/clusters#sph_configure-master-slave-replication

On Master Node:-

Go to RootDirectory and edit below file.

RootDirectory:- /home/mongodb

vim /home/mongodb/conf/soptree.conf

dbpath = /home/mongodb/data ( define data location where all data will be alien)

logpath = /home/mongodb/db.log(define log location and log file name)

logappend = true

bind_ip = 10.56.139.68(master server ip)

port = 27017

fork = true

auth = true

# noauth = true

master = true( cluster status)

On Slave Node:-

dbpath = /home/mongodb/data( define data location where all data will be alien)

logpath = /home/mongodb/db.log(define log location and log file name)

logappend = true

bind_ip = 10.56.139.69(Slave node ip)

port = 27017

fork = true

auth = true

# noauth = true

slave = true(Cluster status)

autoresync = true

source = 10.56.139.68:27017(Master’s node ip and port number)

Now Restart service on both nodes