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Building and Scaling
Data Lineage at Netflix
Strata SF 2019
Di Lin, Girish Lingappa, Jitender
Aswani (@jaswani)
CTA: Intentionally Purposeful to
Improve Diversity in Tech
People, Security,
& Infra Data Eng
(DEI)
Data Lineage Asset Inventory Anomaly Detection
Leverage data to
improve cloud infra
Show of hands
in thinking / planning stages?
currently
building the
system?
done
building?
Imagination Trip
(User Stories)
#1 Data Scientist
validate
source of the
metrics?
#2 Software Engineer
who
downstream to
you service is
impacted?
#3 Reliability Engineer
identify and
alert on jobs /
table at risk of
missing SLA?
Detection and
Data Cleansing
Use Cases Inspired Lineage
Retention and
Data Efficiency
Cost Attribution Platform Reliability
Data Integrity
intentionality
behind complex
data landscape
Freedom & Responsibility
distributed decision
making =>
● move fast,
● scale complexity,
● Judicious about
what’s best for Netflix
Data Landscape
Top Challenges
Challenge # 1
Diverse Data Landscape
First time expanding beyond traditional data
warehouse realm
Challenge # 2
Platform Evolution
New Platforms Upgrades
Challenge # 3
Data Conformance
Variance in granularity of the meta data
Design Principles
Design Principle # 1
Ensure data coverage
Design Principle # 2
Enable seamless integration
Design Principle # 3
Envision a flexible data model
Data Coverage
Data Coverage - data gets pushed
● Platform tools publish events (preferred approach)
○ Compute engines
○ Data movement tools
○ Reporting tools
Data Coverage - we pull & parse data
● Ingestion scripts parse logs and metadata
○ Enumerate jobs and scripts
○ Parse plan info
○ Parse queries
Lineage Data Flow
Use Cases
#1: Platform Reliability
● SLA Recommendation
● Predict SLA miss
● Instructive notifications
● Anomaly detection
#2 : Data visibility
● Reinstate key tables
● Deprecate tables
● Schema changes
● Contract no longer held
#3: Efficiency
● Cost evaluation for entities
○ Storage
○ Compute
○ Usage
● Retention
● Disaster recovery
Please visit us at
jobs.netflix.com
Continue your journey...
Lineage blog
Infra DE team blog
Netflix @ Strata
● Wednesday
○ Self-service data platform
● Thursday
○ App performance measurement
○ Security detection platform
○ Personalization enhancement 4:40 PM @ 2002
11:50 AM @ 2002
11:50 AM @ 2006
2:40 PM @ 2024
???
Thank you.
“Provide a complete and accurate
data lineage system enabling
decision-makers to win moments
of truth”
Lineage Mission

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