When the Fur Flies
Dev/Ops Cooperation at the Worst Possible Times
Michael T. Nygard
© 2010 N6 Consulting, LLC. All Rights Reserved.
Tuesday, October 5, 2010
About The Speaker
Application Developer/Architect – 20 years
Web Developer – 15 years
IT Operations – 7 years
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Reaching Across the Aisle
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Reaching Across the Aisle
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Reaching Across the Aisle
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“Web Site”
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“Web Site”
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Online Store
Order Management
Content Creation
Payment & Fraud
Online Store
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Online Store
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Akamai
LB
LB
web1
...
web6
...
image1
image3
LB
LB
app1
app2
app12
LoadManager
LoadManager
Request
Handler
Request
Handler
Request
Handler
Request
Handler
Request
Handler
Request
Handler
Request
Handler
Request
Handler
Request
Handler
...
db1
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search1
Request
Handler
search12
...
db2
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“Web Site”
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£
app12
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app12
db1
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app12
eth0 eth1
sw01
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eth2
db1
eth3
sw02
eth0 eth1
mon-sw
eth2
eth3
When in doubt,
biopsy something.
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app1
app11
app12
eth0 eth1 eth2 eth3
eth0 eth1 eth2 eth3
...
eth0 eth1 eth2 eth3
sw01
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sw02
mon-sw
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Short Term ℞
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Stop It.
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Long Term ℞
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Seriously,
stop it.
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Lessons?
Shared understanding
Concrete language
Collaboration across boundaries
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Organization Design
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Organization Design
Change
Requests
Defect
Reports
Development
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Operations
Organization Design
Change
Requests
Defect
Reports
Development
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Operations
Organization Design
Change
Requests
Defect
Reports
Development
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Operations
Organization Design
Change
Requests
Defect
Reports
Development Operations
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Organization Design
Backlog
Change
Requests
Defect
Reports
Development Operations
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Organization Design
Backlog
Change
Requests
Defect
Reports
Development Operations
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Refuse
Can’tTo Understand
They Wouldn’t
!
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They Wouldn’t Understand
!
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They Wouldn’t Understand
why the build broke.
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They Wouldn’t Understand
how to tune a
connection pool.
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They Wouldn’t Understand
that a good day is deleting
more code than I write.
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They Wouldn’t Understand
that high CPU utilization
doesn’t always mean a
problem.
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They Wouldn’t Understand
we get those alerts all the
time.
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They Wouldn’t Understand
what load average really
means.
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They Wouldn’t Understand
how to read a revenue
forecast
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They Wouldn’t Understand
the difference between
revenue and gross margin
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They Wouldn’t Understand
!
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False
Accountability
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Other Suspicious Characters
“100% Pure Java”™ Developers
All-I-Need-Is-Unix Admins
Function Point Project Managers
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The Big Red Button
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1 month scheduled for
load testing. Extended to
3 months.
7x12 conference calls
Redefined success (down
from 25000 concurrent
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Success!
Ship it!
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Perimeter
Defences
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Mean
Time
Between
Horrifying
Discoveries
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What Went Right?
Dev & Ops collaboration
Shared views and information
Speed of change
Heroic efforts both challenged and elevated
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Schrödinger’s Manager
permanence of quick
fixes.
show chart of hacks and
their longevity.
rolling restart & my
grandfather’s axe.
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Seeds Sown In Trauma Bear Twisted Fruit
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Michael T. Nygard
[email protected]
@mtnygard
© 2010 N6 Consulting, LLC. All Rights Reserved.
Tuesday, October 5, 2010