start mongo

It occurred to me that I want some place to store data like CSV file. Ok, let us use NoSQL like mongodb.

Like other tools, set up process is quite easy for anyone.

Installation requires only one line of command execution. It depends upon existing packages though, it may take time to download all the necessary package.

$ sudo apt-get install mongodb

Installation will automatically starts up daemon, mongod.

$ ps -ef|grep mongod
mongodb    759     1  0 03:47 ?        00:00:27 /usr/bin/mongod --config /etc/mongodb.conf

Configuration file shall be /etc/mongodb.conf. According to configuration file, database repository seems to reside under /var/lib/mongodb directory.

# Where to store the data.
dbpath=/var/lib/mongodb

mongod listesn on default port, TCP 27107.

$ sudo lsof -nPi:27017
COMMAND PID    USER   FD   TYPE DEVICE SIZE/OFF NODE NAME
mongod  759 mongodb    6u  IPv4 113195      0t0  TCP 127.0.0.1:27017 (LISTEN)

OK, let us import CSV file into mongodb. You can import CSV file into collection, an quivalent of page in spreadsheet(?), under database.

$ mongoimport -d <DB_NAME> -c <COLLECTION_NAME> --type csv --file <CSV_FILE> --headerline

After installation, you will check its content from interactive shell.

$ mongo
MongoDB shell version: 2.2.4
connecting to: test
> use <DB_NAME>
switched to db salary
> db.<COLLECTION_NAME>.find().pretty()