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STEP ON IT!
Rapid Event-Based AWS Cost Control
With Step Functions
Damien Jones (he/him)
AWS Consultant @ Steamhaus
2025-09-18 AWS Cloud Day Dublin
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CLIENT AWS ACCOUNT
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EMPLOYER AWS ACCOUNTS
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MY AWS ACCOUNTS
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LOL ROFL LMAO ETC
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NOPE
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AWS STEP FUNCTIONS
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STEP FUNCTION FEATURES
ORCHESTRATOR INTEGRATOR OBSERVER
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BUT FIRST
Hi.
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AWS Consultant Content Creator
Dog Dad
Steam h au s UK amaz o n web s h a r k .c o m
to this noodle
AWS Certified
x5
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AWS User Group Leader
AWS Community Builder
Lanca s h ir e UK
D ata Categ or y
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DATA INGESTION
PIPELINE
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SAVES MONEY ON…
STORAGE COMPUTE
THIRD PARTY
APIS
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DATA SOURCE
DATABASE API
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DATA TARGET
S3 BUCKET EBS VOLUME
RDS
DATABASE
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INGEST DATA FROM SOURCE TO TARGET
SOURCE TARGET
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DATA INGESTOR
SOURCE DATA INGESTOR TARGET
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AWS LAMBDA
FUNCTION
AMAZON S3
BUCKET
API /
DATABASE
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AWS LAMBDA
FUNCTION
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AWS LAMBDA
FUNCTION
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REWRITES SAME DATA
DUPLICATES IF VERSIONNED
RATE LIMITING & COST INCREASES AT SOURCE
PROCESS
DUPLICATION
COMPUTE &
STORAGE COSTS
DATA SOURCE
ISSUES
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DATA SOURCE ISSUES
HIGHER ACCESS
COSTS
RESTRICATED
ACCESS NO ACCESS
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AWS LAMBDA
FUNCTION
AMAZON S3
BUCKET
API /
DATABASE
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STEP FUNCTION CHOICE STATE
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NO S3 DATA FOUND = CALL API
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S3 DATA FOUND = NOTIFY USER
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SAVES MONEY ON…
STORAGE COMPUTE
THIRD PARTY
APIS
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ALSO WORKS WITH…
DYNAMODB RDS
ONPREM / THIRD PARTY
DATABASES
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JOB CHAIN
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SAVES MONEY ON…
COMPUTE
INCIDENT
MANAGEMENT
BUSINESS
CONTINUITY
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SITUATION
AMAZON ECS
TASK
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OVERNIGHT PROCESS CHAIN
A B C
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SEQUENTIAL CALLS
A B C
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UH OH
A B C
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DOUBLE UH OH
A B C
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FAILURE ON B
ON CALL TRIGGERED
TASK C NEVER
STARTS
DOWNSTREAM
IMPACT
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COST IMPACT
ON CALL PAYMENTS
BUSINESS
DISRUPTION
CUSTOMER
DETRIMENT
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SEQUENTIAL CALLS
A B C
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STEP FUNCTION PARALLEL STATE
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STEP FUNCTION PARALLEL WORKFLOW
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ISSUE ON B
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ISSUE ON B
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TRY-CATCH LOGIC
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SAVES MONEY ON…
COMPUTE
INCIDENT
MANAGEMENT
BUSINESS
CONTINUITY
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STOPPING
ABANDONED JOBS
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MY AWS BILL
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AWS GLUE
JOB
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THE CAUSE
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COSTS: 2024 H1
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COSTS: 2024 JUNE
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COST & USAGE: API OPERATION
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COST & USAGE: API OPERATION - TAX
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COST: API OPERATION – GLUE JOB RUN
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COST: API OPERATION – GLUE INTERACTIVE
SESSION
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COST DRIVER #1:
OPEN SESSIONS
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COST DRIVER: ACTIVE SESSION
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COST DRIVER: ACTIVE SESSION
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COST DRIVER #2:
MULTIPLE
SESSIONS
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COST DRIVER: MULTIPLE SESSIONS
ONE TAB ONE SESSION
ONE BILLABLE
RESOURCE
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COST DRIVER: MULTIPLE SESSIONS
MANY TABS MANY SESSIONS
MANY BILLABLE
RESOURCES!
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COST DRIVER: ACTIVE SESSION
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STEP FUNCTION WAIT STATE
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ARCHITECTURE DIAGRAM STEP F
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OTHER USES:
PERFORM OTHER ACTIONS
EMAIL & SLACK
NOTIFICATIONS
BESPOKE
LOGGING
TRIGGER SEPARATE
WORKFLOW
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ARCHITECTURE DIAGRAM
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ARCHITECTURE DIAGRAM
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ARCHITECTURE DIAGRAM
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ARCHITECTURE DIAGRAM
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STEP FUNCTIONS STUDIO
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DEMO: GLUE
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DEMO: GLUE
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DEMO: STEP
FUNCTION
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GLUE INTERACTIVE SESSIONS 2024 H2
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ALSO WORKS WITH…
AMAZON
SAGEMAKER AMAZON EMR AMAZON EC2
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SUMMARY
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THANK YOU
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