View
5
Download
0
Category
Preview:
Citation preview
Not Just Functions: 360 degree view of Serverless and FaaS
#GHC19
About Me
#GHC19
• Identity Cloud Services Architect at Oracle Corporation.
• Over 2 decades of experience in the computing Industry
• Has been awarded 4 patents and 2 more patents pending
• Ph. D from Indian Institute of Technology, Madras,
Vasuki Ashok
About Umit
#GHC19
• Visiting Professor , Computer Science Dept, Occidental College
• Over 2 decades of experience in the computing Industry
• Ph. D from Case Western Reserve University
Ümit Yalçinalp
Agenda
#GHC19
• Introduction
• Common Use-cases
• Sample Use-case
• Developer and Cloud Provider
• Major Challenge in Serverless
• Serverless @Oracle
• Challenges ahead
Introduction
#GHC19
Paradigm Shift in Computing
#GHC19
Focus on Business Logic
Stac
kA
bst
ract
ion
SERVER BASED
IN DATA CENTERIN THE CLOUD
PHYSICAL SERVERSVIRTUAL
MACHINES
APPLICATIONS
FUNCTIONS
•Physical machines•Deploy in Months•Live for years
•Virtual Machines•Deploy in Weeks•Live for
weeks/months
•Containerized apps •Deploy in seconds•Live for hours or days
•Serverless•Deploy in milliseconds•Live for minutes/Hours
#GHC19Confidential – Oracle Internal/Restricted/Highly Restricted
8
WH
AT
IT IS
WH
AT IT ISN
’TApplication Architecture style that allows focusing on business logic
No management of Server hosts or server processes.
Cloud provider managed auto scaling and auto provisioning
Drives Usage based billing
Configuration driven SLA.
Implicit High Availability Support
NOT PaaS that can integrate with other services
Start time NOT > 20 milliseconds and execution time NOT > 10 mins
NOT Containers with autoscaling. Event Driven only
Usecases
#GHC19
COMMON USECASES
#GHC19
Web, Mobile, IoT Backends
Real-time File, Stream Processing
DevOps, Batch Processing
Glue Cloud Services Event-driven
SAMPLE USECASE – ANALYTICS REPORT FROM MOBILE
. . . . . . . . . . . . . . . Event request
Request processing function Events
AnalyticsReportGen Fn
Reports
Report GenerationRequest
Glue Cloud Services – Event Driven Functions
#GHC19
User name, Operation
User Context, Report Context
Developer and
Cloud Provider
#GHC19
#GHC19
COMPLIMENTS
CHALLENGES
No Framework & Library constraints
No administrativeResponsibility
related to availability
No resource constraints for
scaling the service
Faster development because the
functions are small
DEVELOPER’S VIEW
Latency
Runtime LimitState mgmt.And Logging
Lack of End-to-end perspective
Security ???
CLOUD PROVIDER CHALLENGES
#GHC19DEV
ELO
PER
TO
OLS
Troubleshoot
Cold Start
Deploy
Develop
RESO
UR
CE M
ON
ITOR
ING
& M
GM
T
IDE Support
Routing
Dependencies
Authentication
ProgrammingLanguages
OperatingSystems
$$$Financial Viability
Serverless
Challenges
#GHC19
COLD START
. . .
WARM START
What is coldstart? Time taken to instantiate the code on a platform
Specialize the server . . . Function
runtime reset . . . Functions ready in memory
. . . Running code
COLD START – in Server
. . . . . . . . . . . . Running code
#GHC19
Cold Start– Sample Usecase
. . . . . . . . . . . . Request Event
Request Processing Function Events
Report GenerationFunction
Reports
Report GenerationRequest
#GHC19
• Identify the server node• Initialize with context info• Reset the memory• Load the ReqProcFn• Start processing messages
• Identify the server node• Initialize db connection• Reset the memory• Load the RepGenFn• Start processing messages
. . .
Serverless @Oracle
#GHC19
Oracle Functions
AutonomousPlatform auto-scales functions
No servers to provision, manage
Pay Per UsePay for execution, not for idle time
No Lock-inBuilt on open-source FnProject and Docker
Oracle Functions
Functions-as-a-Service
Oracle Cloud Integrated
Container Native
Multi-tenant
Secure
Open Source Engine
Generally Available
#GHC19
Oracle Functions - Usecases
• Glue for Oracle SaaS, PaaS and IaaS services
#GHC19
HOW DOES IT WORK?
Push Functions container to
registry
Configure function trigger
Code runs only when triggered
Pay for code execution time
only
21
#GHC19
SUMMARY
#GHC19
• Introduction
• Common Use-cases
• Sample Use-case
• Developer and Cloud Provider
• Major Challenge in Serverless
• Serverless @Oracle
SourcesIcons: mainframe by Deemak Daksina from the Noun Project
THANK YOUhttps://www.oxy.edu/sites/default/files/assets/
Computer_Science/faas.pdf
YOU CAN FOLLOW US @
https://www.linkedin.com/in/Vasuki.ashokhttps://www.linkedin.com/in/Umit.Yalcinalp
#GHC19
Please remember to complete the session survey in the mobile
app.
CHALLENGES AHEAD• Competitors and Opensource AWS Lambda, Azure Functions, Google Cloud
Functions, Oracle F, OpenSource Fn
#GHC19
Recommended