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The Future is Dead: Long live the Past
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elcuervo
June 02, 2012
Programming
4
1k
The Future is Dead: Long live the Past
The Future is Dead: Long live the Past
elcuervo
June 02, 2012
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Transcript
The Future is Dead long live the past
Hi!
Bruno Aguirre
Bruno Aguirre github: elcuervo
Bruno Aguirre @cuerbot github: elcuervo
cuervo
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disclaimer
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relax
it’s not about this future
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nor this past
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UNIX
UNIX DB
UNIX DB WEB
UNIX
than an MORE OPERATING system
than MORE SOFTWARE
Philosophy
The ART of Unix programming Eric Raymond
Write SIMPLE parts connected by CLEAN interfaces
CLARITY is better than cleverness
Design programs to be CONNECTED to other programs
ps uax | grep ruby | sort | uniq
Design for SIMPLICITY; add complexity ONLY where you must
S R P
S R P ingle
S R P ingle esponsability
S R P ingle esponsability rinciple
PROTOTYPE before polishing. GET IT WORKING before you OPTIMIZE it
DISTRUST all claims for “ONE TRUE WAY”
Design for the FUTURE, because it will be here SOONER
than you think
KISS
KEEP
IT
SIMPLE
SWEETIE
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“Simplicity is the ultimate sophistication” Leonardo Da Vinci 1452-1519
“Everything should be made as simple as possible, but no
simpler” Albert Einstein 1879-1955
“Unix is simple. It just takes a genius to understand
its simplicity” Dennis Ritchie 1941-2011
DB
once upon a time
RDB
ROFLSCALE
ROFLSCALE
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POSTGRESQL
POSTGRESQL MYSQL
CONSTRAINS
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PRIMARY KEY
PRIMARY KEY UNIQUE
PRIMARY KEY UNIQUE NOT NULL
PRIMARY KEY UNIQUE NOT NULL FOREIGN KEY
PRIMARY KEY UNIQUE NOT NULL FOREIGN KEY CHECK
PREPARED STATEMENTS
SELECT * FROM fruits WHERE id = 42;
PREPARE fruit_seeker (int) AS SELECT * FROM fruits WHERE id
= $1;
PREPARE fruit_seeker (int) AS SELECT * FROM fruits WHERE id
= $1; EXECUTE fruit_seeker(42);
~2003
QUERIES PER SECOND BOOST
~2011
STORED PROCEDURES
Execution within the database
Complex data handling
Column operations
We want to use Ruby everywhere
DON’T
WITHOUT ORM
WEB
HTTP 1.0 RFC 1945 (1996)
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MOST WEB of the
client server request response open open close close
HTTP 1.1 RFC 2616 (1999)
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Persistent connections
client server request response open close Re use open sockets
close open
client server request response open close Re use open sockets
Enabled by default
Pipelining
client server request response open close
Disabled by default
Get ready for the PAST
Firefox: can be enabled
Firefox: can be enabled Chrome: can be enabled
Firefox: can be enabled Chrome v20: enabled by default Chrome:
can be enabled
Upgrade header
GET /mychat HTTP/1.1 Host: server.example.com Upgrade: websocket Connection: Upgrade Sec-WebSocket-Key:
x3JJHMbDL1EzLkh9GBhXDw== Sec-WebSocket-Protocol: chat Sec-WebSocket-Version: 13 Origin: http://example.com request
GET /mychat HTTP/1.1 Host: server.example.com Upgrade: websocket Connection: Upgrade Sec-WebSocket-Key:
x3JJHMbDL1EzLkh9GBhXDw== Sec-WebSocket-Protocol: chat Sec-WebSocket-Version: 13 Origin: http://example.com request
HTTP/1.1 101 Switching Protocols Upgrade: websocket Connection: Upgrade Sec-WebSocket-Accept: HSmrc0sMlYUkAGmm5OPpG2HaGWk=
Sec-WebSocket-Protocol: chat response
HTTP/1.1 101 Switching Protocols Upgrade: websocket Connection: Upgrade Sec-WebSocket-Accept: HSmrc0sMlYUkAGmm5OPpG2HaGWk=
Sec-WebSocket-Protocol: chat response
That’s IT?
12 years
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HTTP PTTH
HTTP R e v e rs e
client server
POST /reverse HTTP/1.1 Host: server.example.com Upgrade: PTTH/0.9 Connection: Upgrade Origin:
http://example.com request
POST /reverse HTTP/1.1 Host: server.example.com Upgrade: PTTH/0.9 Connection: Upgrade Origin:
http://example.com request
client server
HTTP/1.1 101 Switching Protocols Upgrade: PTTH/0.9 Connection: Upgrade response
client server
client server
server client
REAL life
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The Future is not Dead
The Past is not Dead
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LEARN from the past
LEARN from the past WATCH the present
LEARN from the past WATCH the present CREATE the future
Thank you!
Thank you! twitter: @cuerbot github: elcuervo
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