mongodb 3.2.3 released with Minor Bug Fixes

MongoDB team proudly announced the release of new version of mongoDB 3.2.3 on February 13, 2016. MongoDB 3.2 introduces new storage engines that extend the capabilities of the database & MongoDB 3.2.3 released with minor bug fixes. mongoDB is an opensource, simple, Flexible Data Model, Highly Scalable and NoSQL database. It stores data as a document for high performance compared with SQL databases.

MongoDB Packages

• mongodb-org : This is the main package for MongoDB which will install all required below supporting packages.
• mongodb-org-server : This package contains the mongos daemon and associated configuration and init scripts.
• mongodb-org-mongos : This package contains the mongos daemon.
• mongodb-org-shell : This package contains the mongo shell.
• mongodb-org-tools : This package contains lot of MongoDB tools which will perform all the operations like backup, restore and repair, etc..,

MongoDB tools and usage

• mongoimport : The mongoimport tool, import content from a JSON, CSV, or TSV export created by mongoexport, or another third-party export tool.
• bsondump : The bsondump converts BSON files into human-readable formats including JSON. For example, bsondump is useful for reading the output files generated by mongodump.
• mongodump : mongodump is an utility for creating a binary export of the contents of a database.
• mongoexport : mongoexport is an utility that produces a JSON or CSV export of data stored in a MongoDB instance.
• mongofiles : The mongofiles utility makes it possible to manipulate files stored in your MongoDB instance in GridFS objects from the command line.
• mongooplog : mongooplog is a simple tool that polls operations from the replication oplog of a remote server, and applies them to the local server.
• mongoperf : mongoperf is an utility to check disk I/O performance independent of MongoDB.
• mongorestore : The mongorestore program writes data from a binary database dump created by mongodump to a MongoDB instance. mongorestore can create a new database or add data to an existing database.
• mongostat : The mongostat utility provides a quick overview of the status of a currently running mongod or mongos instances.
• mongotop : mongotop provides a method to track the amount of time a MongoDB instance spends on reading and writing data.

1) Add MongoDB repository to CentOS/RHEL 6.2+ & 7.0+

Create a /etc/yum.repos.d/mongodb-org-3.2.repo file and add MongoDB repository on your system.

$ sudo /etc/yum.repos.d/mongodb-org-3.2.repo
[mongodb-org-3.2]
name=MongoDB Repository
baseurl=https://repo.mongodb.org/yum/redhat/$releasever/mongodb-org/3.2/x86_64/
gpgcheck=0
enabled=1

1a) Add MongoDB repository to Ubuntu 12.04 & 14.04

Use the below commands to add MongoDB repository on your system.

# Import MongoDB Public GPGkey #
$ sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com:80 --recv EA312927

# Create MongoDB repository #
$ echo "deb http://repo.mongodb.org/apt/ubuntu "$(lsb_release -sc)"/mongodb-org/3.2 multiverse" | sudo tee /etc/apt/sources.list.d/mongodb-org-3.2.list

# Update your system repository list #
$ sudo apt-get update

1b) Add MongoDB repository to Debian 7

Use the below commands to add MongoDB repository on your system.

# Import MongoDB Public GPGkey #
$ sudo apt-key adv --keyserver hkp://keyserver.ubuntu.com --recv EA312927

# Add MongoDB repository to Debian #
$ echo "deb http://repo.mongodb.org/apt/debian "$(lsb_release -sc)"/mongodb-org/3.2 main" | sudo tee /etc/apt/sources.list.d/mongodb-org-3.2.list

# Update your system repository list #
$ sudo apt-get update

2) Install the MongoDB packages

Use the below commands to install MongoDB packages on your system.

# Installing MongoDB packages to Ubuntu/Mint/Debian systems #
$ sudo apt-get install -y mongodb-org

# Installing MongoDB packages to RHEL/CentOS systems #
$ sudo yum install -y mongodb-org

# Installing a specific release of MongoDB to deb based system #
sudo apt-get install -y mongodb-org=3.2.1 mongodb-org-server=3.2.1 mongodb-org-shell=3.2.1 mongodb-org-mongos=3.2.1 mongodb-org-tools=3.2.1

# Installing a specific release of MongoDB to RHEL based system #
sudo apt-get install -y mongodb-org=3.2.1 mongodb-org-server=3.2.1 mongodb-org-shell=3.2.1 mongodb-org-mongos=3.2.1 mongodb-org-tools=3.2.1

3) Configuring MongoDB Database

Open /etc/mongod.conf and uncomment the below lines, if it is commented else leave it.

# Configuring MongoDB config file #
sudo nano /etc/mongod.conf
dbpath=/var/lib/mongo
logpath=/var/log/mongo/mongod.log
port=27017

4) Start MongoDB Database

Use the below command to KICK START your newly installed MongoDB.

# Start MongoDB Service #
$ sudo service mongod start

# Start MongoDB as a Daemon #
$ mongod

5) Install MongoDB from source

Use the below steps to install MongoDB from source.

# cd /opt
# curl -O https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-3.2.1.tgz
# tar -zxvf mongodb-linux-x86_64-3.2.1.tgz
# mkdir -p mongodb
# mkdir -p /data/db
# cd mongodb-linux-x86_64-3.2.1
# mv * /opt/mongodb
# cd /opt/mongodb/bin
# ./mongod

Open separate terminal and open the mongodb shell.

# cd /opt/mongodb/bin
# ./mongo

6) MongoDB Daemon issue

When i’m trying to start MongoDB, i got below error message. By default MongoDB stores data’s to /data/db folder but by default it wont be created. So, we need to mention the path name which is in /etc/mongod.conf file use the below command then try again.

# MongoDB Daemon issue : Solution #
$ sudo mongod --dbpath /var/lib/mongodb

# Greping existing session PID #
$ netstat -tulpn | grep :27017

# Killing existing session #
$ sudo kill -9 PID of above output

# Start MongoDB as a Daemon #
$ sudo mongod

7) Accessing MongoDB shell

Accessing MongoDB shell to perform whatever you want.

# Accessing MongoDB shell #
$ sudo mongo

See the below output for MongoDB shell.

Some big IT companies using MongoDB and performace is well. You can also try to learn and implement it to your company.