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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,
24.
sharding environment Wednesday, December
21,
25.
balancing with chunks Wednesday,
December 21,
26.
please select your
sharding key Wisely Wednesday, December 21,
27.
SQL-like
Rich Query Interface Wednesday, December 21,
28.
find, sort, skip,
limit, operators including $in, $exists, $gte... Wednesday, December 21,
29.
just like CouchDB
Map/Reduce Support Wednesday, December 21,
30.
Sample Schema
Mapper Reducer Wednesday, December 21,
31.
It’s more like
a toy, please don’t easily use it on production Wednesday, December 21,
32.
See! It’s wonderful
with all these features, but.. Wednesday, December 21,
33.
“Come to the
dark side” - Darth Vader Wednesday, December 21,
34.
Before that... Wednesday, December
21,
35.
CAP Theorem Wednesday, December
21,
36.
and MongoDB? Wednesday, December
21,
37.
Availability
Consistency Wednesday, December 21,
38.
How? Wednesday, December 21,
39.
Global Write Lock Wednesday,
December 21,
40.
Issues Wednesday, December 21,
41.
without concurrent write... Wednesday,
December 21,
42.
lose performance Wednesday, December
21,
43.
and frequently update? Wednesday,
December 21,
44.
MongoDB crashed
at any day, any hour and unpredictable Wednesday, December 21,
45.
under high load? Wednesday,
December 21,
46.
sharding & replication
set doesn’t work correctly Wednesday, December 21,
47.
even more.. Wednesday, December
21,
48.
without any error
logs Wednesday, December 21,
49.
one more thing Wednesday,
December 21,
50.
data might be
lost!! Wednesday, December 21,
51.
Wednesday, December 21,
52.
conclusion Wednesday, December 21,
53.
just like all
NoSQL database Wednesday, December 21,
54.
depend on how
you use it Wednesday, December 21,
55.
another mystery Wednesday, December
21,
56.
Facebook is still
using MySQL Wednesday, December 21,
57.
Come on, you’re
not facebook! Wednesday, December 21,
58.
Fliptop is
RECRUITING!! Wednesday, December 21,
59.
@kenzouyeh
kenzouyeh@gmail.com Wednesday, December 21,