Top 10 Scalability Mistakes

Top 10 Scalability Mistakes John Coggeshall

Welcome! ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

What is Scalability? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

The secret to scalability is the ability to design, code, and maintain your applications using the same process again and again regardless of size

Mistake #1: Network file systems ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Mistake #1: Network file systems ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Mistake #2: Blocking calls ,[object Object],[object Object],[object Object],[object Object],[object Object]

Mistake #2: Blocking calls ,[object Object],[object Object],[object Object],[object Object]

Mistake #3: Poor database design ,[object Object],[object Object],[object Object],[object Object],[object Object]

Mistake #4: Failure to understand The web server ,[object Object],[object Object],[object Object]

Mistake #4: Failure to understand The web server ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Mistake #5: Hanging up Apache ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Mistake #5: Hanging up Apache ,[object Object],[object Object],[object Object],[object Object],[object Object]

Mistake 5a: Letting Apache do any static handling ,[object Object],[object Object],[object Object]

Tricks of the Trade ,[object Object],[object Object],[object Object],[object Object]

Tricks of the Trade ,[object Object],[object Object],[object Object]

Tricks of the Trade ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Mistake #6: Designing without Scalability ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Mistake #7: Improperly dealing with database connections ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Mistake #8: Development Infrastructure ,[object Object],[object Object],[object Object],[object Object],[object Object]

Development Infrastructure ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],“ Scalability marginally impacts procedure, procedure grossly impacts scalability” - Theo Schlossnagle

Mistake #9: Failing to Cache ,[object Object],[object Object],[object Object],[object Object]

Mistake #9: Failing to Cache ,[object Object],[object Object]

Mistake 10: Not Knowing where to optimize ,[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object],[object Object],Mistake 10: Not Knowing where to optimize

[object Object],[object Object],[object Object],Mistake 10: Not Knowing where to optimize

[object Object],[object Object],Mistake 11: Because I give 110%

One of the biggest problems with AJAX

One of the biggest problems with AJAX ,[object Object]

One of the biggest problems with AJAX ,[object Object],[object Object]

Some requests will happen faster ,[object Object],[object Object],[object Object],[object Object],[object Object]

Developing with Latency in mind ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Final Thoughts Final Thoughts ,[object Object],[object Object],[object Object],[object Object],Questions?

Top 10 Scalability Mistakes

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Top 10 Scalability Mistakes