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Watch the video with slide
synchronization on InfoQ.com!
https://www.infoq.com/presentations/
microsoft-azure-geo-distributed-
architecture

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Strategy
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Highlights
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Presented at QCon London
www.qconlondon.com

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6. API Frontdoor
West US Internal APIs
(Azure and SaaS)
North Europe Internal APIs
(Azure and SaaS)
East Asia Internal APIs
(Azure and SaaS)

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30. WestUS Frontdoor EastUS Frontdoor West Europe Frontdoor
…
West US Internal APIs North Europe Internal APIs East Asia Internal APIs

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35. X X
Traffic Manager has a probe every
30 seconds
Removes a regional CName if it
sees an issue

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37. X X

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Backend
Workers
Azure Storage #2
Job
Queue
Request
Queue
Async
Operations
Async Workers (Cell 2)
CSM API
(Web Roles)
Sync Front Ends
Azure
Storage
Resources
API VMs
Web Tier
Azure
Storage
Resources
Worker VMs
Azure Storage
Job
Queue
Request
Queues
Async
Operations
Worker TierQueues async tasks
for the backend
Execution is isolated
from the frontend

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DC1 DC2
Application
Tier
DC1
Storage
Replication
Worker
Application
Tier
DC2
Storage
Replication
Worker

49. 1.
2.
3.
Client
Library
Local Table
Local
Queue
Application
Tier

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2.
3.
4.
5.
6.
7.
Queue in
Primary
Replication
Worker
Table in DC 2Table in DC 1
ModifiedDateTime | Etag | Data ModifiedDateTime | Etag | Data

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Local Table
Remote
Table
If failure
Client
Library
Application
Tier

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Client
Library
Local Table
Local
Queue
Application
Tier
Replication
Worker

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2.
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4.

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64. Canar
y

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75. @clamanna
chlama@microsoft.com

76. Watch the video with slide synchronization on
InfoQ.com!
https://www.infoq.com/presentations/microsoft-
azure-geo-distributed-architecture