MongoDB Atlas Autoscaling automatically changes both the storage and compute capacity of your MongoDB Atlas cluster, in response to changing traffic patterns. This enables MongoDB Atlas to continuously maximize performance while minimizing cost, with just a press of a button. Plan to attend this session and learn more about how autoscaling works behind the scenes, and the best ways to use it. 

1. Atlas Autoscaling
Michael Lynn
Director, Principal Developer Advocate

2. Agenda
What is it?
How does it work?
When to use it?
What’s Next?
Atlas Autoscaling

3. #MDBLocal @mlynn
{
_id: ObjectID(”A14GDB23163…”),
Name: ”Michael Lynn”,
Title: ”Director, Principal DevRel”,
Company: ”MongoDB”,
Location: ”Philadelphia, PA”,
Twitter: ”@mlynn”,
Previous: {
Titles: [”Engineer”,”Architect”]
},
Programs: [“MongoDB for Startups”,
“MongoDB for Schools”]
}
Who is this guy?

4. #MDBLocal @mlynn
● Access to MongoDB Platform
and Tools
● Technical Support and
Advising
● Network and Community
Access
● Marketing Support
● Access to MongoDB University
● Access to MongoDB Atlas
● Curriculum Engineering
Support
● Network and Community
● Marketing Support
Interested?
Reach out, DM’s welcome:
@mlynn
michael.lynn@mongodb.com

5. #MDBLocal @mlynn
TIME
ACTIVITY
LAUNCH
RELEASE / UPDATE
NEWS /
MARKETING
DEVELOPMENT
RELEASE / UPDATE
In an ideal world...

6. #MDBLocal @mlynn
TIME
ACTIVITY
LAUNCH
RELEASE / UPDATE
SUN SPOTS
NEWS /
MARKETING
DEVELOPMENT
In reality...

7. #MDBLocal @mlynn
So what?

8. #MDBLocal @mlynn
At some point, we need to think about deployment...

9. #MDBLocal @mlynn
Enter our hero...

10. #MDBLocal @mlynn
TIME
ACTIVITY
M0 Tier Cluster
Capacity
Utilization

11. #MDBLocal @mlynn
TIME
ACTIVITY
M0 Tier Cluster
Capacity
Utilization

12. #MDBLocal @mlynn
TIME
ACTIVITY
M0 Tier Cluster
Capacity
Utilization
M100 Tier Cluster
Excess Capacity

13. #MDBLocal @mlynn
TIME
ACTIVITY
M0 Tier Cluster
Capacity
Utilization
M100 Tier Cluster
CapacityM40 Tier Cluster
Excess Capacity
Capacity
Over Capacity

14. #MDBLocal @mlynn
TIME
ACTIVITY
LAUNCH
RELEASE / UPDATE
SUN SPOTS
NEWS /
MARKETING
DEVELOPMENT
Planning for changes in utilization...
Yep - planned for
that
Yep - planned for
that
Viral Moment…
Uhh… didn’t
see that coming

15. #MDBLocal @mlynn
Free Tier Upgrade to M10
Upgrade to M30
Downgrade to M30
Upgrade to M40

16. #MDBLocal @mlynn
CPU Utilization
Activity
Response Time
Memory

17. #MDBLocal @mlynn
MongoDB Atlas Metrics / Monitoring

18. #MDBLocal @mlynn
Setting Alerts
● Asserts
● Opcounters
● Memory
● Connections
● Queues
● Page Faults
● Cursors
● Network
● Replication Oplog
● DB Storage
● Wired Tiger - Tickets
● System, Disk

19. So now you’re notified…
now what?

20. #MDBLocal @mlynn

21. #MDBLocal @mlynn
What is Auto-Scaling?
a method used in cloud computing, whereby the
amount of computational resources in a server farm,
typically measured in terms of the number of active
servers, scales automatically based on the load on
the farm.

22. #MDBLocal @mlynn
STIMULUS
AWARENESS
CONTROL
CENTER
REACTION

23. #MDBLocal @mlynn

24. #MDBLocal @mlynn
What do we do?
Autoscaling
Compute Storage
● Vertical scaling between Atlas Tiers (ex: M20
to M30)
● Only for tiers with standard CPU and Disk
● Can scale both up and down
● Up - keep up with performance
● Down - save $$s
● Scale storage capacity within a tier
● Automatically keeps up with write
workloads

25. #MDBLocal @mlynn
How it works?
User
Atlas Metrics
Atlas predicts
future
utilization
Executes
autoscaling
decisions
Check user
specified
conditions
Automated
hardware
provisioning
Atlas
automatically
changes cluster’s
computation
capacity with no
downtime
Utilization metrics
are captured in
real time
User
Alerts to
users

26. #MDBLocal @mlynn
How does it work?
CPU Util > 75%
OR
Memory > 75%
UP For at least
1 hour

27. #MDBLocal @mlynn
How does it work?
CPU Util < 50%
AND
Memory < 50%
DOWN
For at least
72 hours

28. #MDBLocal @mlynn
When to use Autoscaling?

29. #MDBLocal @mlynn
Don’t care about time?

30. #MDBLocal @mlynn
Don’t care about Money?

31. #MDBLocal @mlynn
Don’t care about Quality?

32. #MDBLocal @mlynn
Impact so Far
% of Atlas Clusters which we would have downgraded/upgraded
$ figures of how much money we would save customers

33. Quick UI Walkthrough

34. #MDBLocal @mlynn
Quick UI Walkthrough

35. #MDBLocal @mlynn
When not to use auto-scaling
CHOPPY SPIKEY

36. #MDBLocal @mlynn
The future…

37. #MDBLocal @mlynn
The future… Increased reaction speed.

38. #MDBLocal @mlynn
The future… Incorporating Seasonality

39. #MDBLocal @mlynn
The future… Incorporating Core Product Features
Indexing Sharding

40. #MDBLocal @mlynn
In closing...

41. #MDBLocal @mlynn
● Access to MongoDB Platform
and Tools
● Technical Support and
Advising
● Network and Community
Access
● Marketing Support
● Access to MongoDB University
● Access to MongoDB Atlas
● Curriculum Engineering
Support
● Network and Community
● Marketing Support
Interested?
Reach out, DM’s welcome:
@mlynn
michael.lynn@mongodb.com

42. #MDBLocal @mlynn
Suggestions
● Start Small
● Build, Test, Iterate
● Plan for Scale in all Directions

43. #MDBLocal @mlynn