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Improving the User Experience with
AppDynamics EUEM and F5
Tim Lukasiewicz
Technology Architect, CTS CorpOps CSM
@securi_t...
© 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information ...
© 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information ...
© 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information ...
The Challenge: Speed
© 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information ...
© 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information ...
© 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information ...
Reactive Monitoring
© 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information ...
© 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information ...
Automated HTML Rewriting with
F5
Infrastructure As A Developer
Injecting the page-modifications with the F5 means
we aren’t reliant on developers or vendors to
implement our monitoring
© 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information ...
© 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information ...
© 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information ...
Setting up Injection – Every time
© 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information ...
Hosting the adrum.js file
More F5 magic
© 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information ...
© 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information ...
Cerner’s Use Case: Remedy
© 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information ...
“Remedy is Slow”
(Not any better than our basic up/down monitors)
© 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information ...
© 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information ...
© 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information ...
HTTP Performance Overview
© 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information ...
© 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information ...
© 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information ...
F5 Application Acceleration
© 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information ...
© 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information ...
Cerner’s Results
© 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information ...
© 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information ...
© 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information ...
© 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information ...
© 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information ...
Q&A
Please give us your feedback—Session T5906
• Complete the online survey you'll receive via
email later today or via text a...
Thank you for attending AppSphere 2016!
Contact me with any other questions:
@securi_tron or Tim.Lukasiewicz@cerner.com
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How Cerner Corporation Deployed AppDynamics EUM Leveraging F5 Load Balancers - AppSphere16

Cerner devised a way to gather AppDynamics End User Monitoring (EUM) data without modifying application code by leveraging existing F5 load balancers. This allowed Cerner to deploy the EUM technology rapidly, without interrupting development pipelines or requiring vendor assistance for integration with third-party software. Hear how EUM helps Cerner build data-driven acceleration and caching policies in F5's application acceleration manager to maximize the value of its infrastructure investments and strategically place new accelerators where they provide the greatest improvements to users. Learn about the value Cerner gained by deriving F5 application acceleration policies from EUM data.

Key takeaways:
o How to simplify EUM deployment using both native and custom F5 functionality (with technical configuration steps)
o How to gather actionable insights from data provided by EUM
o Understand how to translate the value Cerner has gained into your own success

For more information go to: www.appdynamics.com

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How Cerner Corporation Deployed AppDynamics EUM Leveraging F5 Load Balancers - AppSphere16

  1. 1. Improving the User Experience with AppDynamics EUEM and F5 Tim Lukasiewicz Technology Architect, CTS CorpOps CSM @securi_tron | Tim.Lukasiewicz@cerner.com
  2. 2. © 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information which may not be reproduced or transmitted without the express written consent of Cerner. Agenda Background Our Challenge – Regionalize the Business Service #1 - Understand the End User’s Experience #2 – Find ways to make it faster EUEM Technical Implementation Steps Cerner’s Remedy Use Case Review Driving F5 Application Acceleration with AppDynamics Results Q&A
  3. 3. © 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information which may not be reproduced or transmitted without the express written consent of Cerner. Background Global Healthcare Information Technology Company 200+ Offices located around the world 27,680 Total associates Primary datacenter presence in Kansas City
  4. 4. © 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information which may not be reproduced or transmitted without the express written consent of Cerner. Corporate Systems Management About our CTS CSM team… Corporate Systems Management 47 team members (31 US, 16 BLR, India) • Service Delivery Managers • Production Owner Architects • Technology Architects • System Engineers • Interns – Cerner Scholars, MIC Interns, KCIT Apprentices Responsible for all Enterprise Application Operations If you use it to do your job at Cerner, we probably manage it!
  5. 5. The Challenge: Speed
  6. 6. © 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information which may not be reproduced or transmitted without the express written consent of Cerner. Challenge: Regionalize the Business Services 33 Countries Cerner associates are hereBusiness Service lives here
  7. 7. © 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information which may not be reproduced or transmitted without the express written consent of Cerner. Cerner’s Challenges Applications fail to perform outside of Kansas City >1 minute page loads (or timeouts) reported by users “System” looks fine to engineers Rapid growth of Cerner Associates outside US New acquisitions Expanding Cerner’s global presence and new client-bases Reduced Operational Efficiency Associates hampered by technological and physical limitations Investigation struggles without solid diagnostic data
  8. 8. © 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information which may not be reproduced or transmitted without the express written consent of Cerner. Why does it matter? Every 100ms delay 74% are willing to wait 5 seconds or less for a single web page to load before leaving the site. Costs Amazon 1% in sales. Original Slide Courtesy of F5, Source Citation: http://www.webperformancetoday.com/2013/05/06/psychology-waiting-faster-online-checkout/
  9. 9. Reactive Monitoring
  10. 10. © 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information which may not be reproduced or transmitted without the express written consent of Cerner. …doesn’t always give us the big picture
  11. 11. © 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information which may not be reproduced or transmitted without the express written consent of Cerner. Real User Monitoring Gather the metrics directly from real users performing their work with no impact Identify performance trends from real-world scenarios
  12. 12. Automated HTML Rewriting with F5 Infrastructure As A Developer
  13. 13. Injecting the page-modifications with the F5 means we aren’t reliant on developers or vendors to implement our monitoring
  14. 14. © 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information which may not be reproduced or transmitted without the express written consent of Cerner. Setting up the F5 for Injection – First time Name the rule ‘PrependEUMAgent’ if its general-use Append the application to the end if specific, eg ‘PrependEUMAgent_Remedy’ Profiles -> Content -> HTML -> Click 'Rules‘ Click the down arrow next to "Create New" and select "Prepend HTML"
  15. 15. © 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information which may not be reproduced or transmitted without the express written consent of Cerner. Setting up the F5 for Injection – First time Copy HTML from AppDynamics UI Paste into the Prepend window under “Action Settings” Adjust “src=adrum.js” to match your application Click Match Settings Enter ‘/head’ in the tag name field Leave others blank
  16. 16. © 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information which may not be reproduced or transmitted without the express written consent of Cerner. Setting up the F5 for Injection – First Time Profiles -> Content -> Click “HTML” Create a New Profile and name it “html_insertEUM” If specialized- append the name of the application Example: “html_insertEUM_Remedy” Select '/Common/html' as the parent profile. HTML Rules tab and add the relevant rule we created before to this profile.
  17. 17. Setting up Injection – Every time
  18. 18. © 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information which may not be reproduced or transmitted without the express written consent of Cerner. Setting up Injection – Every time Open the "Local Traffic" Heading and navigate through the hover-menus Virtual Servers -> Virtual Server List Select the VS for your application, then change the "HTML Profile" option from 'None' to the html_insertEUM profile. Click "Update" at the bottom of the page to save your changes.
  19. 19. Hosting the adrum.js file More F5 magic
  20. 20. © 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information which may not be reproduced or transmitted without the express written consent of Cerner. Adrum.js Hosting – Hosted Model Adrum.js file is served by application web tier Requires placing the file in the document-root of the website Ask the developers if you aren’t sure where that lives
  21. 21. © 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information which may not be reproduced or transmitted without the express written consent of Cerner. Adrum.js Hosting – Redirected Model Adrum.js file is served by arbitrary web server, hidden by the F5 Needs ACLs from applications F5s to web server Requires consistency in naming
  22. 22. Cerner’s Use Case: Remedy
  23. 23. © 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information which may not be reproduced or transmitted without the express written consent of Cerner. Remedy at Cerner 2,100 daily concurrent users 10,000+ active users 5,000 Incidents records created per day 135 seconds to create an incident record 666,360 seconds per day creating incident records
  24. 24. “Remedy is Slow” (Not any better than our basic up/down monitors)
  25. 25. © 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information which may not be reproduced or transmitted without the express written consent of Cerner. Global Performance Analysis
  26. 26. © 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information which may not be reproduced or transmitted without the express written consent of Cerner. Performance Testing – Load Testing (Bangalore) 0 10 20 30 40 50 60 70 80 Landing Login Console Load Logout RemedyCert from India (AAM Off) AVERAGE Time Across All Console Load Scenarios 50% 75% 100% Percentages of Average Prod Workload
  27. 27. © 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information which may not be reproduced or transmitted without the express written consent of Cerner. BMC & CDNetworks Whitepaper https://www.cdnetworks.com/wp-content/uploads/2016/01/CDNetworks-BMC-Remedy-OnDemand-WP-EN-US.pdf
  28. 28. HTTP Performance Overview
  29. 29. © 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information which may not be reproduced or transmitted without the express written consent of Cerner. Life of an HTTP Request DNS -> Connect -> Request -> Receive (Repeat)
  30. 30. © 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information which may not be reproduced or transmitted without the express written consent of Cerner. The HTTP dilemma "Waterfall" of associated resources required to compose the page. • Modern browsers only support 6 concurrent connections per hostname • JS files are a blocking download • CSS files are a blocking download for most IE browser versions (although not intended to be) http://www.igvita.com/slides/2012/webperf-crash-course.pdf Slide courtesy of Ilya Grigorik @ Google:
  31. 31. © 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information which may not be reproduced or transmitted without the express written consent of Cerner. PLT: latency vs. bandwidth http://www.igvita.com/slides/2012/webperf-crash-course.pdf Slide courtesy of Ilya Grigorik @ Google:
  32. 32. F5 Application Acceleration
  33. 33. © 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information which may not be reproduced or transmitted without the express written consent of Cerner. Life of an HTTP Request http://www.igvita.com/slides/2012/webperf-crash-course.pdf Slide courtesy of Ilya Grigorik @ Google:
  34. 34. © 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information which may not be reproduced or transmitted without the express written consent of Cerner. Acceleration in the Data Center Load balance • Distribute application load across multiple servers to increase availability Offload • Increase server capacity • Accelerate SSL processing • Manage TCP connections more efficiently SPDY gateway • Leverage SPDY or HTTP/2.0 and other protocols without recoding applications Fast cache • Offload repetitive traffic from web and application servers to increase server capacity
  35. 35. Cerner’s Results
  36. 36. © 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information which may not be reproduced or transmitted without the express written consent of Cerner. Performance Testing – Load Testing (Bangalore) 0 10 20 30 40 50 60 70 80 Landing Login Console Load Logout RemedyCert from India (AAM Off) AVERAGE Time Across All Console Load Scenarios 50% 75% 100% Percentages of Average Prod Workload
  37. 37. © 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information which may not be reproduced or transmitted without the express written consent of Cerner. Performance Testing – Load Testing (Bangalore) 0 1 2 3 4 5 6 7 8 9 10 Landing Login Console Load Logout RemedyCert from India (AAM Off) AVERAGE Time Across All Console Load Scenarios 50% 75% 100% Percentages of Average Prod Workload
  38. 38. © 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information which may not be reproduced or transmitted without the express written consent of Cerner. Performance Testing – Load Testing (Bangalore) 0 10 20 30 40 50 60 70 80 Landing Login Console Load Logout RemedyCert from India (AAM On) AVERAGE Time Across All Console Load Scenarios 50% 75% 100% 150% 200% Percentages of Average Prod Workload
  39. 39. © 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information which may not be reproduced or transmitted without the express written consent of Cerner. Performance Testing – Load Testing (Bangalore) 0 1 2 3 4 5 6 7 8 9 10 Landing Login Console Load Logout RemedyCert from India (AAM On) AVERAGE Time Across All Console Load Scenarios 50% 75% 100% 150% 200% Percentages of Average Prod Workload
  40. 40. © 2011 Cerner Corporation. All rights reserved. This document contains Cerner confidential and/or proprietary information which may not be reproduced or transmitted without the express written consent of Cerner. The Way Forward – Cerner Global CDN
  41. 41. Q&A
  42. 42. Please give us your feedback—Session T5906 • Complete the online survey you'll receive via email later today or via text at: Text this number: 878787 Text this word: APPSPHERE • Every time you submit a session survey, your name will be entered in a random drawing. We're giving away Amazon Echos to 5 lucky winners! • Thank you for your input APPDYNAMICS CONFIDENTIAL AND PROPRIETARY 41 Win!
  43. 43. Thank you for attending AppSphere 2016! Contact me with any other questions: @securi_tron or Tim.Lukasiewicz@cerner.com

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