Introduction to MongoDB. Kristina Chodorow

Transcription

1 Introduction to MongoDB Kristina Chodorow

2

3 Application PHP Apache Database Linux

4 Application PHP IIS Windows

5 Application PHP Apache Linux

6 Application PHP Apache Linux

7 Application PHP Apache Linux

8 Application PHP The world's most popular open source database Apache Linux

9 Application PHP Apache Linux The world's most advanced open source database

10

11 server databases contain tables contain rows

12 server schema databases contain tables contain rows

13 server schema databases contain tables contain rows joins

14 server schema databases contain tables contain rows joins

15

16

17

18

19 Application Perl Apache Linux

20 getting started

21

22 $ mysqld

23 $ mongod

24 $ mysql

25 $ mongo

26 $ mongo MongoDB shell version url: test connecting to: test type "help" for help >

27 $ mongo MongoDB shell version url: test connecting to: test type "help" for help > db

28 $ mongo MongoDB shell version url: test connecting to: test type "help" for help > db test >

29 $ mongo MongoDB shell version url: test connecting to: test type "help" for help > db test >

30 $ mongo MongoDB shell version url: test connecting to: test type "help" for help > db test > table = db.foo

31 server

32 databases server

33 server databases contain tables

34 server databases contain tables

35 server databases contain tables

36 server databases contain tables contain rows

37 server databases contain tables contain rows

38 server databases contain tables contain rows

39 server schema databases contain tables contain rows

40 server schema databases contain tables contain rows joins

41 server databases contain collections contain documents

42 $ mongo MongoDB shell version url: test connecting to: test type "help" for help > db test > collection = db.foo

43 $ mongo MongoDB shell version url: test connecting to: test type "help" for help > db test > collection = db.foo

44 > doc = {... "name" : "kristina",... "contact info" : {... "twitter" : "@kchodorow",... " " : "[email protected]"... },... "friends" : ,... "pic" : BinData(...)... "member since" : new Date()}

45 > db.foo.insert(doc)

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

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

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

49 > 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)

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

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

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

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

54

55

56 some features

57 I suddenly have a deep love for stored procedures

58 I suddenly have a deep love for stored procedures

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

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

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

62 > 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

63

64

65 J J J J J J J J J

66

67 capped collections

68 indexes

69 geospatial indexes

70

71 MapReduce

72 what did we leave out?

73

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

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76

77

78 are you practicing safe data storage?

79

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

81 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.

82

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

84 trust no one!...trust a bunch of ones. Mostly.

85 prod1.example.com prod2.example.com

86 prod1.example.com prod2.example.com

87 prod1.example.com prod2.example.com

88 prod1.example.com prod2.example.com

89

90 prod1.example.com prod2.example.com

91 prod1.example.com prod2.example.com

92 prod1.example.com? prod2.example.com

93 prod1.example.com prod2.example.com

94 ? prod1.example.com prod2.example.com

95 prod1.example.com prod2.example.com

96 prod1.example.com prod2.example.com

97 primary secondary secondary passive

98 My priority is 2 My priority is 1 secondary secondary passive

99 primary secondary passive

100 I'm 5 minutes behind the master secondary secondary I'm 3 seconds behind the master passive

101 secondary primary passive

102 I'll still take reads. passive

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104

105

106

107 okay

108 ?

109 make sure two slaves have this

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111

112

113 all set

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115

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118

119

120 scaling

121

122 (rdbms)

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

124 A - E F - J K - O P - T U - Z I want Mark through Sarah.

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

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

127 A - E F - J K - O P - T U - Z Insert Linus

128 A - E F - J K - O P - T U - Z Insert Linus

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

130 $ mongo MongoDB shell version url: test connecting to: test type "help" for help >

131 $ mongo MongoDB shell version url: test connecting to: test type "help" for help > db.foo.insert({x:1})

132 thank