dinner in the sky

with

@marcboeker

boarding

MongoDB

MongoDB

freebie

Document-orientated Storage

JSON-Style Documents

Document-orientated Storage

JSON-Style Documents

Document-orientated Storage

Scales to Hell

JSON-Style Documents

Sharding/Replica Sets

Document-orientated Storage

Scales to Hell

JSON-Style Documents

Sharding/Replica Sets

Document-orientated Storage

Scales to Hell

Replication/Failover

JSON-Style Documents

Sharding/Replica Sets

MongoDB ♥ You

Document-orientated Storage

Scales to Hell

Replication/Failover

JSON-Style Documents

Sharding/Replica Sets

MongoDB ♥ You

Document-orientated Storage

Scales to Hell

Replication/Failover

Map & Reduce

welcome passengers

$ sudo port install mongodb

Installation on *nix

deb http://downloads.mongodb.org/distros/ubuntu 10.4 10gen

$ sudo apt-get install mongodb

Ruby

♥ Ruby

$ sudo gem install mongo

Python

♥ Python

$ sudo easy_install pymongo

Node.js

♥ Node.js

$ sudo npm install mongodb

♥

$ sudo pecl install mongo

$ echo "extension=mongo.so" >> php.ini

taking off

$ mongo

db.foo.insert()

db.foo.insert({ name: "Angie", buddies: ["Wulfi", "Sarrazi", "Obami"], followers: 14.75, marked_as_spam: true});

db.foo.find()

db.foo.find({name: "Angie"});{ "_id" : ObjectId("4c9f87f54d17321d092991aa"), "name" : "Angie", "buddies" : ["Wulfi", "Sarrazi","Obami"], "followers" : 14.75, "marked_as_spam" : true}

db.foo.find({name: "Angie"});{ "_id" : ObjectId("4c9f87f54d17321d092991aa"), "name" : "Angie", "buddies" : ["Wulfi", "Sarrazi","Obami"], "followers" : 14.75, "marked_as_spam" : true}

magic

db.foo.update()

db.foo.update( {name: "Angie"}, {"$push": {buddies: "Puti"}});

db.foo.update( {name: "Angie"}, {"$push": {buddies: "Puti"}});

db.foo.find({name: "Angie"});{ "_id" : ObjectId("4c9f87f54d17321d092991aa"), "name" : "Angie", "buddies" : ["Wulfi", "Sarrazi","Obami", "Puti"], "followers" : 14.75, "marked_as_spam" : true}

db.foo.remove()

db.foo.remove({name: "Angie"});

db.foo.remove({name: "Angie"});

db.foo.remove({buddies: "Sarrazi"});

db.foo.remove({name: "Angie"});

db.foo.remove({buddies: "Sarrazi"});

db.foo.remove();

db.foo.remove({name: "Angie"});

db.foo.remove({buddies: "Sarrazi"});

db.foo.remove();

$ sudo rm -Rf /

$query-Imperator

$query-Imperator

O

{age: {$gt: 10}}{weight: {$gte: 100}}{followers: {$lt: 5}}{shares: {$lte: 40}}{color: {$nin: "red"}}{counter: {$mod: [2, 0]}}{numbers: {$all: [1, 2, 3]}}{sql: {$ne: "nosql"}}{buddies: {$size: 4}}{homies: {$in: "Scooter"}}{brain: {$exists: true}}{name: {$type: 2}}

db.foo.find( )

$query

db.foo.find( )

$query

db.foo.update($query, $update)

{$inc: {counter: 1}}

{$set: {name: "monkey"}}

{$unset: {money: 1}}

{$push: {buddies: ["Homer"]}}

{$pushAll: {numbers: [1, 2]}}

{$addToSet: {drinks: "water"}}

{$pop: {queue: 1}}

{$pop: {queue: -1}}

{$pull: {colors: "red"}}

{$pullAll: {chars: ["a", "b"]}}

$update

$update

dinner in the sky

replicas

S1

S2

S3

Set 1

S1

Set 2

S1

S2

Set 3

Master-Server Slave-ServerS1 S2

sharding

{ { mongod 3

mongod 2

mongod 1

mongod 3

mongod 2

mongod 1

Shard 3Shard 2

mongod 3

app 1 app 2 app 3

mongos 1 mongos 2 mongos 3

Shard 1

config 1

config 2

config 3

Config Servers

mongod 2

mongod 1

indexes

db.foo.ensureIndex({email: 1});

db.foo.ensureIndex({email: 1});

db.foo.ensureIndex({name: -1});

db.foo.ensureIndex({email: 1});

db.foo.ensureIndex({name: -1});

db.foo.ensureIndex({email: 1, password: 1});

db.foo.ensureIndex({email: 1});

db.foo.ensureIndex({name: -1});

db.foo.ensureIndex({email: 1, password: 1});

db.foo.ensureIndex({location: "2d"});

db.foo.ensureIndex({email: 1});

db.foo.ensureIndex({name: -1});

db.foo.ensureIndex({email: 1, password: 1});

db.foo.ensureIndex({location: "2d"});

db.foo.ensureIndex({email: 1}, {unique: true});

gridfs

$ mongofiles listconnected to: 127.0.0.1?

$ mongofiles put foo.jpgconnected to: 127.0.0.1done!

"

$ mongofiles listconnected to: 127.0.0.1foo.jpg12000964?

$ mongofiles get foo.jpgconnected to: 127.0.0.1done write to: foo.jpg

"

map & reduce

$ ./mongo

> db.things.insert( { _id : 1, tags : ['dog', 'cat'] } );

> db.things.insert( { _id : 2, tags : ['cat'] } );

> db.things.insert( { _id : 3, tags : ['mouse', 'cat', 'dog'] } );

> db.things.insert( { _id : 4, tags : [] } );

http://www.flickr.com/photos/lovely-yukari/4388391318/

$ ./mongo

> db.things.insert( { _id : 1, tags : ['dog', 'cat'] } );

> db.things.insert( { _id : 2, tags : ['cat'] } );

> db.things.insert( { _id : 3, tags : ['mouse', 'cat', 'dog'] } );

> db.things.insert( { _id : 4, tags : [] } );

lalala datahttp://www.flickr.com/photos/lovely-yukari/4388391318/

> m = function(){

... this.tags.forEach(

... function(z){

... emit( z , { count : 1 } );

... }

... );

...};

> m = function(){

... this.tags.forEach(

... function(z){

... emit( z , { count : 1 } );

... }

... );

...};

map function

> r = function( key , values ){

... var total = 0;

... for ( var i=0; i<values.length; i++ )

... total += values[i].count;

... return { count : total };

...};

> r = function( key , values ){

... var total = 0;

... for ( var i=0; i<values.length; i++ )

... total += values[i].count;

... return { count : total };

...};

reduce function

> res = db.things.mapReduce(m, r);

> res = db.things.mapReduce(m, r);

do it!

> db[res.result].find()

{"_id" : "cat" , "value" : {"count" : 3}}

{"_id" : "dog" , "value" : {"count" : 2}}

{"_id" : "mouse" , "value" : {"count" : 1}}

> db[res.result].find()

{"_id" : "cat" , "value" : {"count" : 3}}

{"_id" : "dog" , "value" : {"count" : 2}}

{"_id" : "mouse" , "value" : {"count" : 1}}

no rabbit :(

( 25 * ) +*

http://www.flickr.com/photos/frensjan/4011678461/

( 25 * ) +*

http://www.flickr.com/photos/frensjan/4011678461/

8.000.000 operationsper hour

( 25 * ) +*

http://www.flickr.com/photos/frensjan/4011678461/

8.000.000 operationsper hourSECOND

especi

ally fo

r Robe

rto

Cens

ored

Thank you very much for travelling with me!

especi

ally fo

r Robe

rto

Cens

ored