Avoiding #CloudFail: Learning Lessons from Microsoft...
Transcript of Avoiding #CloudFail: Learning Lessons from Microsoft...
![Page 1: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/1.jpg)
![Page 2: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/2.jpg)
![Page 3: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/3.jpg)
![Page 4: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/4.jpg)
![Page 5: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/5.jpg)
![Page 6: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/6.jpg)
…Web Role
Cache
Worker
Roles
…AzureBlob
WCFClient
WCFClient
WCFClient
WCFServer
WCFServer
WCFServer
![Page 7: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/7.jpg)
…Web Role
Cache
Worker
Roles
…AzureBlob
WCFClient
WCFClient
WCFClient
WCFServer
WCFServer
WCFServer
Cache Cache Cache
![Page 8: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/8.jpg)
![Page 9: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/9.jpg)
![Page 10: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/10.jpg)
…Web Role
…Azure
Blob
Azure DB Results Main
WorkerRole
…
…
![Page 11: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/11.jpg)
…Web Role
…Azure
Blob
Azure DB Results Main
WorkerRole
…
…
…Web Role
…Azure
Blob
Azure DB Results Main
WorkerRole
…
Azure Traffic Manager
![Page 12: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/12.jpg)
Expected Load
Scenarios Expected Page Views
Time Window
(hrs) Page View/sec
10X/pvs
DB Calls/sec
Average 10,000,000 4 694 6,944
Peak Hour 6,000,000 1 1,667 16,667
![Page 13: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/13.jpg)
1 2 n…Web Role
…Azure
Blob
Azure DB
Results MainWorkerRole
…
…
CacheWorkerRole
![Page 14: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/14.jpg)
![Page 15: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/15.jpg)
Actual: if direct SQL DB Calls (~10X)
Time Actual Page Views Time Window (sec) Page View/sec
Possible 10X
DB Calls/sec
Est Capacity
DIFF DB Calls/sec
8pm+10 secs 448,932 10 44,893 448,932 (447,932)
8pm+30 secs 206,925 20 10,346 103,463 (102,463)
8:01 pm 171,231 30 5,708 57,077 (56,077)
8:03 pm 378,350 120 3,153 31,529 (30,529)
8:10 pm 494,423 420 1,177 11,772 (10,772)
8:30 pm 416,379 1200 347 3,470 (2,470)
Actual: using Azure Cache (10X)
Time Actual Page Views Time Window (sec) Page View/sec
Actual 10X
Cache
Calls/sec
Est Capacity
DIFF Cache Calls/sec
8pm+10 secs 448,932 10 44,893 448,932 (288,932)
8pm+30 secs 206,925 20 10,346 103,463 56,538
8:01 pm 171,231 30 5,708 57,077 102,923
8:03 pm 378,350 120 3,153 31,529 128,471
8:10 pm 494,423 420 1,177 11,772 148,228
8:30 pm 416,379 1200 347 3,470 156,530
![Page 16: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/16.jpg)
![Page 17: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/17.jpg)
![Page 18: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/18.jpg)
![Page 19: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/19.jpg)
1 2 n…Web Role
IaaS
SQL
ApplicationWorkerRole
200 User Test
On-Prem App Azure
Total Counts For Test 1 (batch): 33,174 10,135
Total Counts For Test 2 (interactive): 114,497 39,341
![Page 20: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/20.jpg)
Data.VHD Tempdb.VHD Data+Tempdb.VHD
![Page 21: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/21.jpg)
![Page 22: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/22.jpg)
![Page 23: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/23.jpg)
…Azure
Blob…
IngestionWorkerRole
Azure DB Results
![Page 24: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/24.jpg)
![Page 25: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/25.jpg)
…Azure
Blob…
IngestionWorkerRole
…
Azure DB
Today
Today-1
Today-6
Today-7X
Aggregate
![Page 26: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/26.jpg)
![Page 27: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/27.jpg)
AdminWeb Role
User ServicesWeb Role
…AzureBlob
DB
Message Processor WorkerRole
…
NotificationsWorkerRole
…
Dedicated Cache WorkerRole
…
OperationsService Bus Queue
![Page 28: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/28.jpg)
MessageProcessor
Message2
Message1
Message3
MessageProcessor
Message2
Message1
Message3
![Page 29: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/29.jpg)
http://msdn.microsoft.com/en-us/library/azure/hh528527.aspx
MessageProcessor
Message2
Message1
Message3
Processed Message
1
Processed Message
3
Processed Message
2
MessageProcessor
Message2
Message1
Message3
Processed Message
1
Processed Message
2
Processed Message
3
![Page 30: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/30.jpg)
![Page 31: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/31.jpg)
![Page 32: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/32.jpg)
HVAC
Thermostat
Thermostat
Bu
ildin
g R
ou
ter
Web Role
(Synchronous HTTP)
Web Role
Mobile User Interface
Azure
On-Prem
Gateway
Weather WCF
Service
Azure Queue Email Queue
SMTP Relay
Dealer Email
![Page 33: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/33.jpg)
12 A3 VMs
![Page 34: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/34.jpg)
![Page 35: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/35.jpg)
HVAC
Thermostat
Thermostat
Bu
ildin
g R
ou
ter
Web Role
(Synchronous HTTP)
Web Role
Mobile User Interface
Service Bus
Email Queue
Azure
On-Prem
Gateway
SMTP RelayWeather WCF
Service
Async and Writes
Sync and
Reads
Worker Role
(write-leveling)
Em
ail R
eq
uest
![Page 36: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/36.jpg)
4 A3 VMs
![Page 37: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/37.jpg)
![Page 38: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/38.jpg)
![Page 39: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/39.jpg)
![Page 40: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/40.jpg)
![Page 41: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/41.jpg)
![Page 42: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/42.jpg)
![Page 43: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/43.jpg)
Gateway
Service 1
User profile
Service 9
Image processing
ClientSQL DB
Monolithic, Synchronous and MonolingualWeb role (single instance)
……
….
![Page 44: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/44.jpg)
![Page 45: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/45.jpg)
Gateway
User profile service
Image processing
service
Client
SQL DB
Distributed, Asynchronous and Polyglot
Image
processing
Decompose workloads into different roles
Use queue and worker for CPU intensive task
Worker roleWeb role
Web role Web role
Web role
Other servicesTable
Storage
Cache
Blob
Storage
Optimal storage per each data type
Async calls all around
Cache
![Page 46: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/46.jpg)
![Page 47: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/47.jpg)
![Page 48: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/48.jpg)
![Page 49: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/49.jpg)
![Page 50: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/50.jpg)
Role A Role B
Port
80
Port
3389
Port
3390
Role A’ Role B’
Port
80
Port
3389
Port
3390
Production VIP – VIP1
<dnsname>.cloudapp.netStaging VIP – VIP2
<guid>.cloudapp.net
![Page 51: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/51.jpg)
Slot VIP Role A Role B
Production 168.133.1.22 Healthy Healthy
Stage 168.124.33.22 Healthy Healthy
Slot VIP Role A Role B
Stage 168.124.33.22 Healthy Healthy
Production 168.133.1.22 Healthy Healthy
![Page 52: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/52.jpg)
Slot VIP Role A Role B
Production 168.133.1.22 Healthy Healthy
Stage 168.124.33.22 Healthy Healthy
Slot VIP Role A Role B
Stage 168.124.33.22 Healthy Healthy
Production 168.133.1.22 Healthy Healthy
Slot VIP Role A Role B
Stage 168.124.33.22 Healthy Healthy
Stage 168.124.33.22 Healthy Healthy
![Page 53: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/53.jpg)
RDFE A RDFE vNextRDFE B
![Page 54: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/54.jpg)
RDFE A RDFE vNextRDFE B
![Page 55: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/55.jpg)
RDFE vNextRDFE B
![Page 56: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/56.jpg)
RDFE vNextRDFE vNext
![Page 57: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/57.jpg)
http://blogs.msdn.com/b/windowsazure/archive/2013/03/01/details-of-the-february-22nd-2013-windows-azure-storage-
disruption.aspx
![Page 58: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/58.jpg)
![Page 59: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/59.jpg)
![Page 60: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/60.jpg)
![Page 61: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/61.jpg)
System.Reflection.TargetInvocationException: Exception has been thrown by the target of an
invocation. ---> Microsoft.ServiceModel.Web.WebProtocolException: Server Error: The service
name is unknown (NotFound)
HTTP Status Code: 400. Service Management Error Code: MissingOrIncorrectVersionHeader. Message: The versioning header is not specified or was specified incorrectly.
![Page 62: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/62.jpg)
![Page 63: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/63.jpg)
![Page 64: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/64.jpg)
![Page 65: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/65.jpg)
![Page 66: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/66.jpg)
![Page 67: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/67.jpg)
![Page 68: Avoiding #CloudFail: Learning Lessons from Microsoft Azuredownload.microsoft.com/download/6/1/C/61C0E37C-F252-4B33-955… · Actual: if direct SQL DB Calls (~10X) Time Actual Page](https://reader036.fdocuments.net/reader036/viewer/2022071022/5fd6b9ced8b9854c1a4e82d5/html5/thumbnails/68.jpg)