Introduction to MongoDB Kristina Chodorow kristina@mongodb.org - - PowerPoint PPT Presentation

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Introduction to MongoDB Kristina Chodorow kristina@mongodb.org - - PowerPoint PPT Presentation

Feb 29, 2024 809 likes •2.15k views

Introduction to MongoDB Kristina Chodorow kristina@mongodb.org Application PHP Apache Database Linux Application PHP IIS Windows Application PHP Apache Linux Application PHP Apache Linux Application PHP Apache Linux

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Kristina Chodorow kristina@mongodb.org

Introduction to MongoDB

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Application PHP Linux Database Apache

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Application PHP Windows IIS

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Application PHP Linux Apache

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Application PHP Linux Apache

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Application PHP Linux Apache

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Application PHP Linux Apache

The world's most popular open source database

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Application PHP Linux Apache

The world's most advanced open source database

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databases

contain tables contain rows

server

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databases

contain tables contain rows

schema server

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databases

contain tables contain rows

joins schema server

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databases

contain tables contain rows

joins schema server

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Application Perl Linux Apache

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getting started

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www.mongodb.org

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$ mysqld

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$ mongod

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$ mysql

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$ mongo

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$ mongo MongoDB shell version 1.5.5 url: test connecting to: test type "help" for help >

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$ mongo MongoDB shell version 1.5.5 url: test connecting to: test type "help" for help > db

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$ mongo MongoDB shell version 1.5.5 url: test connecting to: test type "help" for help > db test >

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$ mongo MongoDB shell version 1.5.5 url: test connecting to: test type "help" for help > db test >

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$ mongo MongoDB shell version 1.5.5 url: test connecting to: test type "help" for help > db test > table = db.foo

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server

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databases server

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databases

contain tables

server

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databases

contain tables

server

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databases

contain tables

server

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databases

contain rows

server

contain tables

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databases

contain rows

server

contain tables

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databases

contain rows

server

contain tables

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databases

contain rows

server

contain tables

schema

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databases

contain rows

server

contain tables

schema joins

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databases

contain collections contain documents

server

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$ mongo MongoDB shell version 1.5.5 url: test connecting to: test type "help" for help > db test > collection = db.foo

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$ mongo MongoDB shell version 1.5.5 url: test connecting to: test type "help" for help > db test > collection = db.foo

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> doc = { ... "name" : "kristina", ... "contact info" : { ... "twitter" : "@kchodorow", ... "email" : "kristina@10gen.com" ... }, ... "friends" : 400232, ... "pic" : BinData(...) ... "member since" : new Date()}

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> db.foo.insert(doc)

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> db.foo.findOne({"name" : "kristina"});

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> db.foo.findOne({"name" : "kristina"}) > db.foo.findOne({ ... "contact.twitter" : "@kchodorow"})

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> db.foo.findOne({"name" : "kristina"}) > db.foo.findOne({ ... "contact.twitter" : "@kchodorow"}) > db.foo.find({ ... "member since" : { ... "$gt" : yesterday, ... "$lt" : today ... }})

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> db.foo.findOne({"name" : "kristina"}) > db.foo.findOne({ ... "contact.twitter" : "@kchodorow"}) > db.foo.find({ ... "member since" : { ... "$gt" : yesterday, ... "$lt" : today ... }}).sort({friends : 1}).limit(10). ... skip(100)

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db.people.update( {name : "kristina"},

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db.people.update( {name : "kristina"}, {$set :

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db.people.update( {name : "kristina"}, {$set : {"contact.website" : "snailinaturtleneck.com" }});

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> db.pageviews.update( {url : "example.com"}, {$inc : {pageviews : 1}}, true)

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some features

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I suddenly have a deep love for stored procedures

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I suddenly have a deep love for stored procedures

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> db.system.js.insert({ "_id" : "x", "value" : 3}); > db.system.js.insert({ "_id" : "y", "value" : 4}); > db.eval("return x+y")

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> db.system.js.insert({_id : "log", ... value : function(msg, level) { ... var date = "[" + new Date() + "] "; ... var lvl = level ? level+" " : ""; ... print(date + lvl + msg); ... }})

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> db.eval("log('all your base are belong to us', 'FATAL');");

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> db.eval("log('all your base are belong to us', 'FATAL');"); [Fri May 19 18:34:57] FATAL all your base are belong to us

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J J J J J J J J J

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capped collections

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indexes

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geospatial indexes

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MapReduce

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what did we leave out?

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I say, we should get a mainframe, old chap. Harumph.

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are you practicing safe data storage?

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Insert this. Okay, got it. Phew, my data's safe.

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Write this to disk All over it! I know better than he does, I'll just let this sit in a buffer for a while.

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? I have no idea what you're talking about.

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trust no one!

...trust a bunch of ones. Mostly.

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prod1.example.com prod2.example.com

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prod1.example.com prod2.example.com

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prod1.example.com prod2.example.com

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prod1.example.com prod2.example.com

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prod1.example.com prod2.example.com

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prod1.example.com prod2.example.com

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prod1.example.com

?

prod2.example.com

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prod2.example.com prod1.example.com

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prod2.example.com prod1.example.com

?

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prod2.example.com prod1.example.com

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prod2.example.com prod1.example.com

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primary secondary passive secondary

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secondary passive secondary

My priority is 2 My priority is 1

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primary passive secondary

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secondary passive secondary

I'm 5 minutes behind the master I'm 3 seconds behind the master

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secondary passive primary

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passive

I'll still take reads.

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  • kay
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?

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make sure two slaves have this

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all set

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scaling

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(rdbms)

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U - Z K - O A - E F - J P - T

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U - Z K - O A - E F - J P - T

I want Mark through Sarah.

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U - Z K - O A - E F - J P - T

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U - Z K - O A - E F - J P - T

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U - Z K - O A - E F - J P - T

Insert Linus

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U - Z K - O A - E F - J P - T

Insert Linus

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U - Z K - O A - E F - J P - T

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$ mongo MongoDB shell version 1.5.5 url: test connecting to: test type "help" for help >

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$ mongo MongoDB shell version 1.5.5 url: test connecting to: test type "help" for help > db.foo.insert({x:1})

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thank you!

@kchodorow http://www.snailinaturtleneck.com