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?

griggheo

REGISTER file:/home/hadoop/lib/pig/piggybank.jar;                                       

DEFINE EXTRACT org.apache.pig.piggybank.evaluation.string.EXTRACT();                    

DEFINE CustomFormatToISO org.apache.pig.piggybank.evaluation.datetime.convert.CustomFormatToISO();
DEFINE ISOToUnix org.apache.pig.piggybank.evaluation.datetime.convert.ISOToUnix();

DEFINE DATE_TIME org.apache.pig.piggybank.evaluation.datetime.DATE_TIME();
DEFINE FORMAT_DT org.apache.pig.piggybank.evaluation.datetime.FORMAT_DT();