Aslam Latheef: MangoDB

MangoDB

MongoDB opensource Installation on RHEL6 64bit from rpms

6:36 PM

MangoDB

MongoDB installation on Windows 64bit

6:33 PM

MangoDB

MongoDB Getting Started

6:32 PM

MongoDB

is a non-relational data store for JSON documents. By non-relational means, it doesn't store its data in tables like a relational database does. It stores data in JSON documents. MongoDB is schemaless, it means that two documents don't need to have the same schema. It is (from "humongous") a scalable, high-performance, open source, document-oriented database.
By default, it stores data in '/data/db'. Default port is 27017.

Mongo Shell

Mongo shell is an administrative shell and has lot of similarities with node.js. It is a C++ program control using V8. Node.js application interact with MongoDB with help of node.js driver.

Features supported

1) indexes
2) secondary indexes

Features not supported

1) Joins
2) Transactions across multiple collections

Standard commands

db.names.insert()
db.names.find()
show dbs (to see the available databases)
use database_name (to switch or use database)

Download

Visit http://www.mongodb.org/downloads and choose the appropriate release for your OS

Installation

Pre-create a user - u: mongouser g: mongo
Pre-create directory structure for the Mongo Home and the database home
Eg:
mkdir /u01/mongodb - this will be the Mongo install base
mkdir -p /u01/mongodb/data/db - the main database files
Unpack the downloaded tarball into the Mongo install base
Eg:
cd /u01/mongodb
tar -xvf mongo-linux-x86_64-2.0.0.tgz
Move the contents of this back into /u01/mongodb and rm the dir mongo-linux-x86_64-2.0.0.
Update the .bashrc to reflect the MONGO_HOME and update the PATH
MONGO_HOME=/u01/mongodb
export MONGO_HOME
PATH=$PATH:.:$MONGO_HOME/bin

Start the background process

nohup $MONGO_HOME/bin/mongod --dbpath /u01/mongodb/data/db > /u01/mongodb/mongod.nohup 2>&1 &

Connect to Mongo and connect to a database called jimdb

[mongouser@iadorclgrid02 mongodb]$ mongo
MongoDB shell version: 2.0.0
connecting to: test
> use jimdb
switched to db jimdb

Backup the jimdb database

Lock the database to prevent writes
$MONGO_HOME/bin/mongo admin $MONGO_HOME/bin/fsync_lock.js
Backup the database
$MONGO_HOME/bin/mongodump -d jimdb -o /u01/mongodb/dump
Unlock the database to allow writes again
$MONGO_HOME/bin/mongo admin $MONGO_HOME/bin/unlock.js

Drop a database and shutdown the server process

Connect to the chosen database
MongoDB shell version: 2.0.0
connecting to: test
> use jimdb
switched to db jimdb
Drop the database
> db.dropDatabase()
{ "dropped" : "jimdb", "ok" : 1 }
Connect to the admin database to shutdown a server
> use admin
switched to db admin
Shutdown the Mongo server (NB: this is not the host !)
> db.shutdownServer()
Thu Oct 13 11:26:55 DBClientCursor::init call() failed { shutdown: 1.0 }
Thu Oct 13 11:26:55 query failed : admin.$cmd to: 127.0.0.1 server should be down...
Thu Oct 13 11:26:55 trying reconnect to 127.0.0.1
Thu Oct 13 11:26:55 reconnect 127.0.0.1 failed couldn't connect to server 127.0.0.1
Thu Oct 13 11:26:55 Error: error doing query: unknown shell/collection.js:150

You can tail the mongod.nohup file to see the shutdown messages
Thu Oct 13 11:26:55 dbexit: shutdown called
Thu Oct 13 11:26:55 [conn3] shutdown: going to close listening sockets...
Thu Oct 13 11:26:55 [conn3] closing listening socket: 6
Thu Oct 13 11:26:55 [conn3] closing listening socket: 7
Thu Oct 13 11:26:55 [conn3] closing listening socket: 8
Thu Oct 13 11:26:55 [conn3] removing socket file: /tmp/mongodb-27017.sock
Thu Oct 13 11:26:55 [conn3] shutdown: going to flush diaglog...
Thu Oct 13 11:26:55 [conn3] shutdown: going to close sockets...
Thu Oct 13 11:26:55 [conn3] shutdown: waiting for fs preallocator...
Thu Oct 13 11:26:55 [conn3] shutdown: lock for final commit...
Thu Oct 13 11:26:55 [conn3] shutdown: final commit...
Thu Oct 13 11:26:55 [conn3] shutdown: closing all files...
Thu Oct 13 11:26:55 [conn3] closeAllFiles() finished
Thu Oct 13 11:26:55 [conn3] journalCleanup...
Thu Oct 13 11:26:55 [conn3] removeJournalFiles
Thu Oct 13 11:26:55 [conn3] shutdown: removing fs lock...
Thu Oct 13 11:26:55 dbexit: really exiting now

MangoDB

MongoDB Enterprise Installation on RHEL6 64bit from rpms

6:31 PM

1. Configure repo

[hostname_mongodb ~]# vi /etc/yum.repos.d/mongodb.repo
[mongodb-enterprise]
name=MongoDB Enterprise Repository
baseurl=https://repo.mongodb.com/yum/redhat/$releasever/mongodb-enterprise/stable/$basearch/
gpgcheck=0
enabled=1

2. Install packages via yum

[hostname_mongodb ~]#  yum install mongodb-enterprise*

Dependencies Resolved
=====================================================================================================================================================================
 Package                                        Arch                        Version                                  Repository                                 Size
=====================================================================================================================================================================
Installing:
 mongodb-enterprise                             x86_64                      3.0.3-1.el6                              mongodb-enterprise                        4.7 k
 mongodb-enterprise-mongos                      x86_64                      3.0.3-1.el6                              mongodb-enterprise                        4.0 M
 mongodb-enterprise-server                      x86_64                      3.0.3-1.el6                              mongodb-enterprise                        8.4 M
 mongodb-enterprise-shell                       x86_64                      3.0.3-1.el6                              mongodb-enterprise                        4.1 M
 mongodb-enterprise-tools                       x86_64                      3.0.3-1.el6                              mongodb-enterprise                         32 M
Installing for dependencies:
 cyrus-sasl-gssapi                              x86_64                      2.1.23-15.el6_6.2                        rhel-x86_64-server-6                       34 k
Updating for dependencies:
 cyrus-sasl                                     x86_64                      2.1.23-15.el6_6.2                        rhel-x86_64-server-6                       78 k
 cyrus-sasl-lib                                 x86_64                      2.1.23-15.el6_6.2                        rhel-x86_64-server-6                      136 k
 cyrus-sasl-md5                                 x86_64                      2.1.23-15.el6_6.2                        rhel-x86_64-server-6                       47 k
 cyrus-sasl-plain                               x86_64                      2.1.23-15.el6_6.2                        rhel-x86_64-server-6                       31 k
Transaction Summary
=====================================================================================================================================================================

3. Start MongoDB and check the log to verify

[hostname_mongodb ~]# service mongod start
[hostname_mongodb ~]# cat /var/log/mongodb/mongod.log
[hostname_mongodb ~]# chkconfig mongod on

4. Login to shell

[hostname_mongodb ~]# mongo

Labels

MongoDB opensource Installation on RHEL6 64bit from rpms

1. Configure repo

2. Install packages via yum

3. Start MongoDB and check the log to verify

4. Login to shell

MongoDB installation on Windows 64bit

1. Download MongoDB with SSL enabled feature

2. Create datadir and install hotfix

3. Default location

4. Install MongoDB app as a service and set it to start as automatic

5. Start Mongo shell and create a shortcut on desktop

MongoDB Getting Started

MongoDB

Mongo Shell

Features supported

Features not supported

Standard commands

Download

Installation

Start the background process

Connect to Mongo and connect to a database called jimdb

Backup the jimdb database

Drop a database and shutdown the server process

MongoDB Enterprise Installation on RHEL6 64bit from rpms

1. Configure repo

2. Install packages via yum

3. Start MongoDB and check the log to verify

4. Login to shell

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