HeavenORHell,MongoDB

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Kenzou Yeh

Tecnologia Negócios

About Me

Kenzou Yeh
Co-Founder @Lingtelli, Inc. & AnswerMe, Inc.
Consultant @Fliptop, Inc. & Hiiir, Inc.

Wednesday, December 21,

Agenda

It’s all about MongoDB:

bright side
&
dark side

Wednesday, December 21,

Introduction

MongoDB

Database Database

Collections Collections Collections

Wednesday, December 21,

Bson
Document-Oriented
with
Json-Style

Wednesday, December 21,

and Json-Reference Support

Wednesday, December 21,

$collection “company”: { “_id”: ObjectId(“tasdfbhxnkj19”), “name”: “answerme”, “founder”: DBRef(“person”, “ijqywhxnkj19j4”) } collection “person”: { “_id”: ObjectId(“ijqywhxnkj19j4”), “name”: “Kenzou Yeh”, “company”: DBRef(“company”, “tasdfbhxnkj19”) } Wednesday, December 21,$

don’t be silly...

Wednesday, December 21,

Indexing Support

OS: Is that a feature!!??

Wednesday, December 21,

efﬁcient and easy to use

Wednesday, December 21,

B-tree indexing
&
compound index support

Wednesday, December 21,

eat a lot of memory

Wednesday, December 21,

master/slave & replica set

Wednesday, December 21,

replica set works with

OpLog

Wednesday, December 21,

Capped Collections

Wednesday, December 21,

and

Voting
with primary, secondary, arbiter(node type) and priority

Wednesday, December 21,

sharding environment

Wednesday, December 21,

balancing with chunks

Wednesday, December 21,

please select your sharding key

Wisely

Wednesday, December 21,

SQL-like
Rich Query Interface

Wednesday, December 21,

ﬁnd, sort, skip, limit, operators including $in, $exists, $gte...

Wednesday, December 21,

just like CouchDB
Map/Reduce Support

Wednesday, December 21,

Sample Schema

Mapper

Reducer

Wednesday, December 21,

It’s more like a toy, please don’t easily use it on production

Wednesday, December 21,

See! It’s wonderful with all these
features, but..

Wednesday, December 21,

“Come to the dark side”
- Darth Vader

Wednesday, December 21,

Availability Consistency

Wednesday, December 21,

Global Write Lock

Wednesday, December 21,

without concurrent write...

Wednesday, December 21,

lose performance

Wednesday, December 21,

and frequently update?

Wednesday, December 21,

MongoDB crashed
at any day, any hour and unpredictable

Wednesday, December 21,

under high load?

Wednesday, December 21,

sharding & replication set

doesn’t work correctly

Wednesday, December 21,

without any error logs

Wednesday, December 21,

data might be lost!!

Wednesday, December 21,

just like all NoSQL database

Wednesday, December 21,

depend on how you use it

Wednesday, December 21,

another mystery

Wednesday, December 21,

Facebook is still using MySQL

Wednesday, December 21,

Come on, you’re not facebook!

Wednesday, December 21,

Fliptop is RECRUITING!!

Wednesday, December 21,

@kenzouyeh

kenzouyeh@gmail.com

Wednesday, December 21,

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HeavenORHell,MongoDB

1. Heaven or Hell @kenzouyeh kenzouyeh@gmail.com Wednesday, December 21,

2. About Me Kenzou Yeh Co-Founder @Lingtelli, Inc. & AnswerMe, Inc. Consultant @Fliptop, Inc. & Hiiir, Inc. Wednesday, December 21,

3. Agenda It’s all about MongoDB: bright side & dark side Wednesday, December 21,

4. NoSQL? Wednesday, December 21,

5. Wednesday, December 21,

6. Introduction MongoDB Database Database Collections Collections Collections Wednesday, December 21,

7. Bson Document-Oriented with Json-Style Wednesday, December 21,

8. which means... Wednesday, December 21,

9. It’s AWESOME Wednesday, December 21,

10. and Json-Reference Support Wednesday, December 21,

11. collection “company”: { “_id”: ObjectId(“tasdfbhxnkj19”), “name”: “answerme”, “founder”: DBRef(“person”, “ijqywhxnkj19j4”) } collection “person”: { “_id”: ObjectId(“ijqywhxnkj19j4”), “name”: “Kenzou Yeh”, “company”: DBRef(“company”, “tasdfbhxnkj19”) } Wednesday, December 21,

12. Join?? Wednesday, December 21,

13. don’t be silly... Wednesday, December 21,

14. Indexing Support OS: Is that a feature!!?? Wednesday, December 21,

15. efﬁcient and easy to use Wednesday, December 21,

16. B-tree indexing & compound index support Wednesday, December 21,

17. eat a lot of memory Wednesday, December 21,

18. Replication Wednesday, December 21,

19. master/slave & replica set Wednesday, December 21,

20. replica set works with OpLog Wednesday, December 21,

21. Capped Collections Wednesday, December 21,

22. and Voting with primary, secondary, arbiter(node type) and priority Wednesday, December 21,

23. Auto-Sharding Wednesday, December 21,