Editing Mongo DB Doc Prepared @ AIRTEL for DT Project

<center>'''MongoDB installation and configuration guide'''</center>


'''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 http://downloads.mongodb.org/linux/mongodb-linux-x86_64-2.4.9.tgz]


2. Extract the downloded file to specified location


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


3. Rename the extracted file. PFB

 <nowiki>[root@DTdb opt]#</nowiki>mv mongodb-linux-i686-2.4.9 mongodb


4. Create directory inside the mongodb folder


 <nowiki>[root@DTdb mongodb]#</nowiki> mkdir conf

 <nowiki>[root@DTdb mongodb]#</nowiki>mkdir data


5. Create a file under the conf directory


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


6. Create Rc script for the mongodb


 <nowiki>[root@DTdb conf]# </nowiki>vim /etc/init.d/mongodb
 <nowiki>#!/bin/bash</nowiki>
 <nowiki>#</nowiki>
 <nowiki># mongodb </nowiki>Startup script for the mongodb server
 <nowiki>#</nowiki>
 <nowiki># chkconfig: - 64 36</nowiki>
 <nowiki># description: MongoDB Database Server</nowiki>
 <nowiki>#</nowiki>
 <nowiki># processname: mongodb</nowiki>
 <nowiki>#</nowiki>
 <nowiki># Source function library</nowiki>
 . /etc/rc.d/init.d/functions
 <nowiki>if [ -f /etc/sysconfig/mongodb ]; then</nowiki>
 . /etc/sysconfig/mongodb
 fi
 prog="mongod"
 mongod="/opt/mongodb/bin/mongod -config /opt/mongodb/conf/soptree.conf"
 <nowiki>#mongod="/opt/mongodb/bin/mongod"</nowiki>
 RETVAL=0
 start() {
 echo -n $"Starting $prog: "
 <nowiki>#daemon $mongod "--fork --logpath /var/log/mongodb.log --logappend 2>&1 >>/var/log/mongodb.log"</nowiki>
 daemon $mongod "--fork --logpath /opt/mongodb/db.log --logappend 2>&1 >>/opt/mongodb/db.log"
 RETVAL=$?
 echo
 <nowiki>[ $RETVAL -eq 0 ] && touch /var/lock/subsys/$prog</nowiki>
 return $RETVAL
 }
 stop() {
 echo -n $"Stopping $prog: "
 killproc $prog
 RETVAL=$?
 echo
 <nowiki>[ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/$prog</nowiki>
 return $RETVAL
 }
 reload() {
 echo -n $"Reloading $prog: "
 killproc $prog -HUP
 RETVAL=$?
 echo
 return $RETVAL
 }
 case "$1" in
 start)
 start
 <nowiki>;;</nowiki>
 stop)
 stop
 <nowiki>;;</nowiki>
 restart)
 stop
 start
 <nowiki>;;</nowiki>
 condrestart)
 <nowiki>if [ -f /var/lock/subsys/$prog ]; then</nowiki>
 stop
 start
 fi
 <nowiki>;;</nowiki>
 reload)
 reload
 <nowiki>;;</nowiki>
 status)
 status $mongod
 RETVAL=$?
 <nowiki>;;</nowiki>
 <nowiki>*)</nowiki>
 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.


# Shutdown the MongoDB server

# 
## cd /opt/mongodb/bin
## ./mongo
## db.shutdownServer()
## exit

# copy existing copy of backup folder into “backup”

# 
## cd /opt/mongodb/bin
## mkdir backup
## <nowiki><copy backup files from source machine to ../bin/backup folder></nowiki>
## ./mongorestore –dbpath /opt/mongodb/data/ -o /opt/mongodb/bin/backup
# Restart MongoDb server
## /etc/init.d/mongodb start

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

# cd /opt/mongodb/bin
# ./mongo
# use soptree
# 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 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
 <nowiki># noauth = true</nowiki>
 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
 <nowiki># noauth = true</nowiki>
 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