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Big Data Scripting

Social

@tsunamiide

tsunami.io

Earthquake Enterprises


Founder of Lift Analytics
 (F# IDE)



Big Data / Machine Learning
Applied Researcher



Business Intelligence



Process Engineering

Social

@tsunamiide

tsunami.io

Earthquake Enterprises


Two main tasks on the Big Data Pipeline
are Getting More Data and Finding More
Factors

Get More
Data

Social

@tsunamiide

Find
More
Factors

tsunami.io

Machine
Learning

A/B
Testing

Earthquake Enterprises


Data Science is an inherently exploratory pursuit



Over 50% of the queries you write will only be
executed once



Very few queries are worth saving



Exploration involves writing a whole lot of new code
and then throwing most of it away



There are no QA teams and no test suites



Many more new opportunities to make mistakes

Social

@tsunamiide

tsunami.io

Earthquake Enterprises


Most queries are exploratory in nature
 The decision on which query to run next often

depends on the result of the previous query
 Queries are often very short (e.g. 5 minutes)
 Queues are often very long (e.g. 2 hours)


Mistakes waste a lot of your time

Social

@tsunamiide

tsunami.io

Earthquake Enterprises


Clusters are a shared resource



A simple mistake may kill a big job after
12 hours of cluster processing time



Mistakes waste everyone's time

Social

@tsunamiide

tsunami.io

Earthquake Enterprises


Democratized write access to the cluster



Meta-data is often kept as tribal
knowledge, team wikis, and files sent in
emails

Social

@tsunamiide

tsunami.io

Earthquake Enterprises


Users will start to share datasets amongst
themselves without any formal
agreements or dependency management



Other people can now break your code

Social

@tsunamiide

tsunami.io

Earthquake Enterprises


There are many more chances for making
mistakes, they have become easier to
make and they are far more costly.



Most of the time they are not even your
fault and there is nothing you could have
reasonably done to prevent them.

Social

@tsunamiide

tsunami.io

Earthquake Enterprises
Social

@tsunamiide

tsunami.io

Earthquake Enterprises

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  • 2.  Founder of Lift Analytics  (F# IDE)  Big Data / Machine Learning Applied Researcher  Business Intelligence  Process Engineering Social @tsunamiide tsunami.io Earthquake Enterprises
  • 3.  Two main tasks on the Big Data Pipeline are Getting More Data and Finding More Factors Get More Data Social @tsunamiide Find More Factors tsunami.io Machine Learning A/B Testing Earthquake Enterprises
  • 4.  Data Science is an inherently exploratory pursuit  Over 50% of the queries you write will only be executed once  Very few queries are worth saving  Exploration involves writing a whole lot of new code and then throwing most of it away  There are no QA teams and no test suites  Many more new opportunities to make mistakes Social @tsunamiide tsunami.io Earthquake Enterprises
  • 5.  Most queries are exploratory in nature  The decision on which query to run next often depends on the result of the previous query  Queries are often very short (e.g. 5 minutes)  Queues are often very long (e.g. 2 hours)  Mistakes waste a lot of your time Social @tsunamiide tsunami.io Earthquake Enterprises
  • 6.  Clusters are a shared resource  A simple mistake may kill a big job after 12 hours of cluster processing time  Mistakes waste everyone's time Social @tsunamiide tsunami.io Earthquake Enterprises
  • 7.  Democratized write access to the cluster  Meta-data is often kept as tribal knowledge, team wikis, and files sent in emails Social @tsunamiide tsunami.io Earthquake Enterprises
  • 8.  Users will start to share datasets amongst themselves without any formal agreements or dependency management  Other people can now break your code Social @tsunamiide tsunami.io Earthquake Enterprises
  • 9.  There are many more chances for making mistakes, they have become easier to make and they are far more costly.  Most of the time they are not even your fault and there is nothing you could have reasonably done to prevent them. Social @tsunamiide tsunami.io Earthquake Enterprises