Data Lake Architecture

The First Step in Information Management
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Produced by:
MONTHLY SERIES
In partnership with:
Data Lake Architecture
October 5, 2017

Topics for Today’s Analytics Webinar
 Benefits and Risks of a Data Lake
 Data Lake Reference Architecture
 Lab and the Factory
 Base Environment for Batch Analytics, Streaming and Real-Time Data
 Critical Governance Components
 Key Take-Aways
 Q&A
pg 2© 2017 First San Francisco Partners www.firstsanfranciscopartners.com

Polling Questions
 Do you have a data lake?
− Yes
− No
− Unsure
 If yes, is it:
− Operational and regularly used for analytics
− Informally used, like a lab or sandbox
− Unsure

Defining the Data Lake
 A data lake is a collection of storage instances of various data assets additional to the
originating data sources. These assets are stored in a near-exact, or even exact, copy
of the source format.
 The purpose of a data lake is to present an unrefined view of data to only the most
highly skilled analysts, to help them explore their data refinement and analysis
techniques independent of any of the system-of-record compromises that may exist
in a traditional analytic data store (such as a data mart or data warehouse).
 A data lake can support either/or exploratory analytics and operational uses of data.
Source: Gartner IT Glossary

www.firstsanfranciscopartners.com
Benefits and Risks of the Data Lake

Benefits of the Data Lake
 Enables “productionizing” advanced
analytics
 Cost-effective scalability and flexibility
 Derives value from unlimited data types
(including raw data)
 Reduces long-term cost of ownership across
entire spectrum of data use

Risks of the Data Lake
 Loss of trust
 Loss of relevance and momentum
 Increased risk
 Long-term excessive cost

Data Lake Reference Architecture

Modern Reality of the Data Lake
 The data lake has changed due to storage availability, data management tools
and ease of which data can be managed.
 Today’s data lake is comprised of:
‒ Landing Zone
‒ Standardization Zone
‒ Analytics Sandbox

LANDING ZONEDATA SOURCES
Landing Zone:
Closest to original data lake
conception where raw data is stored
and available for consumption

LANDING ZONE STANDARDIZATION ZONEDATA SOURCES
Standardization Zone:
Standardized, cleaned data –
the preferred version for
downstream consumers and
the Analytics Sandbox

LANDING ZONE STANDARDIZATION ZONE ANALYTICS SANDBOXDATA SOURCES
Analytics
Sandbox:
Where Data
Scientists
work to
create new
models

LANDING ZONE STANDARDIZATION ZONE ANALYTICS SANDBOXDATA SOURCES
DATA MANAGEMENT

LANDING ZONE STANDARDIZATION ZONE ANALYTICS SANDBOX
DATA GOVERNANCE DATA OPERATIONS
DATA SOURCES
DATA MANAGEMENT

DATA GOVERNANCE DATA OPERATIONS
DATA SOURCES
DATA SCIENTISTS
DATA MANAGEMENT

DATA GOVERNANCE
DATA CONSUMERS
DATA OPERATIONS
DATA SOURCES
DATA SCIENTISTS
DATA MANAGEMENT

Reminder: Two Lenses to Derive an Effective Architecture
Form
Developing the
architecture so all
stakeholders can
actually understand
and develop it
Progression
Develop architectures
that are best fit for
purpose and effective,
no matter how simple
or complex

Lab and the Factory

Why is This Topic Important?
 A key to successful data lake management is understanding if it is a lab,
a factory or both.
 There are architectural, governance and organizational impacts.
 You must clearly identify if you are evolving from a lab to a factory or intend
to keep them separate.

First Progression – Lab Elements
Organization ElementsFunctional Elements Technology Elements
Data
Consumption
DataSupply
Chain/Logistics
Data
Management
Landing/Staging ETL
Data Analysts
Access – Publish, Subscribe, Notify
Access Tools – BI, AnalyticsAnalytics – Descriptive,
Predictive, Prescriptive
HDFS, Columnar and Graph

Operational Elements
Organization ElementsFunctional Elements Technology Elements
Data
Consumption
DataSupply
Chain/Logistics
Data
Management
Pedigree and Preparation
Landing/Staging
Model/Metrics Management
Data Reduction
Glossary Management
Machine Learning/AI
Data Governance
Data OperationsData Ingestion
Reference and Master Data
Competency Centers
Self-Service/Data Citizens
ETL/Virtualization
Distributed Processing
Metadata
Data Quality/Hygiene
Lake, Pond, Warehouse
HDFS, Columnar and Graph
Data Streaming
Data Glossary
Data Lake Management
Taxonomy/Ontology
Web Services
Policy and Process
Data Analysts and Scientists
Collaboration, Decision-Making
Access – Publish, Subscribe, Notify
Access Tools – BI, Analytics
Applications
Analytics – Descriptive,
Predictive, Prescriptive
Business/Tech. Planning
Security, Privacy
Business Continuity

pg 22
The Lab – Characteristics
 Allows for experimentation, testing new models, proof of concepts
 Technical
− Flexible architectures, even ad hoc or non-persistent
− Rarely documented
− Schema on read
 Organizational
− Run by the main users, hence informal or departmental
 Functional
− By nature, results should be evaluated for relevance
© 2017 First San Francisco Partners www.firstsanfranciscopartners.com

pg 23
The Factory – Characteristics
 Addressing directed requirements, producing regular outputs
associated with a business service, product or action
 Technical
− Architecture needs to be defined so its use and limits are understood
 Organizational
− Published rules of engagement
 Functional
− Data quality is monitored and known
− Lineage and metadata support navigation and use of content
− May need scheduled access and loading
− Publishing results will require some form of quality control and approval
− Models that are executed on a scheduled basis will require some sort of
administrative and maintenance capabilities

Base Environment for Batch Analytics,
Streaming and Real-Time Data

A Base Environment
Data Governance Data Operations
Rapid ingestion –
stream, low latency
or batch updating
Ease of access –
find it, use it,
know what it
means
Effective data supply chain – data of the correct
quality needs to be where it is supposed to be
Flexibility – Data
Scientists need to be
able to experiment,
but without polluting
the lake

Additional Components for Real-time Analytics
and Ingesting Streaming Data
 Are you replacing the Operational Data Store (ODS)?
 Will you be doing full CRUD operation (Create, Update, Read, Delete)?
 How fast do you need to go? Latencies should match your real needs.
 Vendors – Hortonworks, Attunity, Splice
− Ingest
− Process
− Consumption
 Technologies you will hear about
− Apache Kafka, Storm (real-time streaming components)
− Apache Spark (fast batches)

Critical Governance Components

Major Areas of Data Governance Concern
In the Data Lake
DATA GOVERNANCE
DATA CONSUMERS
DATA OPERATIONS
DATA SOURCES
DATA SCIENTISTS
1
2
3 3 3
4
5
6
1
2
3
4
5
6
Data Acquisition
Data Catalog
Data Decisions
Analytics Governance
Data Usage
Model Productionalization
Some Data Governance approaches are new, and
others are applications of traditional approaches

Major Areas of Data Governance Concern in the Data Lake
Data is
cataloged/
mapped so it’s
easily found
Data is described
adequately to
permit reuse for
any need
Decisions about data are logged and communicated
Flow of data (data lineage) is documented, so users/
regulators can understand where it came from
Staff who knows and
understands the
data are identified
Data Governance defines
the information you
need to maintain your
data, develops the
processes to do this,
trains staff and provides
the environments to
manage the knowledge,
while monitoring and
ensuring compliance.

Evolution of Critical Governance Components
While flexible, governance is
required to ensure appropriate use
While operational, governance will ensure
legitimacy, compliance and verify
alignment with business needs
To move to operational, governance
should supply road map, new policies,
training and organization management

Key Take-Aways

Key Take-Aways
 Make sure you offer up business benefits in addition to
traditional “access to data” – such as lower costs, more
nimble reactions.
 Avoid additional data risks by providing oversight of data
quality and sources. Do not take a causal approach to
managing the data lake assets.
 Understand that the architectural aspect of the data lake
(as it is evolving) is becoming a standard, much like the data
warehouse.
 Maintain an open mind for supporting technologies, because
they are changing every day.
 Implement Data Governance. It is a critical success factor, no
matter how you view the data lake.

Questions?
MONTHLY SERIES

Thank you for joining today!
Please join us Thursday, Nov. 2 for the
Keys to Effective Data Visualization webinar.
John Ladley @jladley
john@firstsanfranciscopartners.com
Kelle O’Neal @kellezoneal
kelle@firstsanfranciscopartners.com

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