selcukcihan

S3

• By default all new buckets are private
• You can have bucket policies and ACLs (ACL can go down to individual objects)
• Read after write consistency for puts of new objects
• Eventual consistency for overwrite PUTs and DELETEs
• Storage classes
  • S3 standard (99.99 availability, 11 9s durability) can sustain loss of 2 facilities concurrently
  • S3-IA lower fee than S3 but you are charged a retrieval fee (99.9% availability)
  • S3 One Zone - IA lower cost option if you don't need multi AZ data resilience (99.5% availability)

• S3 Intelligent Tiering

vasanthk

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

1. Clarify and agree on the scope of the system

• User cases (description of sequences of events that, taken together, lead to a system doing something useful)
  • Who is going to use it?
  • How are they going to use it?

staltz

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

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This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

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fallwith

$> launchctl unload -w ~/Library/LaunchAgents/com.mysql.mysqld.plist

$> /usr/local/Cellar/mysql/5.5.9/bin/mysqld --basedir=/usr/local/Cellar/mysql/5.5.9 --datadir=/usr/local/Cellar/mysql/5.5.9/data --plugin-dir=/usr/local/Cellar/mysql/5.5.9/lib/plugin --log-error=/usr/local/Cellar/mysql/5.5.9/data/errors.err --pid-file=/usr/local/Cellar/mysql/5.5.9/data/pidfile.pid --skip-grant-tables

$> mysql

mysql> UPDATE mysql.user SET Password=PASSWORD('root_password') WHERE User='root';
mysql> FLUSH PRIVILEGES;

$> kill `cat /usr/local/Cellar/mysql/5.5.9/data/pidfile.pid`