objectives and takeaways agenda understanding type of issues 9 (this is weird) customer reported...

Apurva Joshi (AJ)Senior Program Manager

When Bad Things Happen to Good Apps: Troubleshooting Application on Azure App Service

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Objectives and Takeaways

Understand tools and best practices for troubleshooting Azure Web App performance and availability issues.

You can’t RDP, but that doesn’t mean you can’t troubleshoot and mitigate issues.

When everything else fails…

Agenda

• What could possibly go wrong? • Identify and categorize type of issue• Tools available for diagnostics • Demos, Demos and more Demos!• Q&A

What can possibly go wrong?

What could possibly go wrong? It’s just a candy!

Kid is happy now

Understanding Type of Issues

9

(This is weird) Customer Reported

Issues

(Where is the Dev?)Application IssuesImpacts specific

customer SLA

(Hey, Man)Generic FAQ

No SLA impact

(OMG!!!)Platform Issue

Impacts multiple customers’ SLA

Redmond, We’ve Got a Problem

(Where is the fix?)Platform Issue

Impacts multiple customers SLA

Understanding Type of Issues

10

(Where is the Dev?)Application IssuesImpacts specific

customer SLA

(Hey, Man)Generic FAQ

No SLA impact

(OMG!!!)Platform Issue

Impacts multiple customers SLA

Redmond, We’ve Got a Problem

(This is weird) Customer Reported

Issues

(Where is the fix?)Platform Issue

Impacts multiple customers SLA

What Can Go Wrong – Platform Issues

• Azure App Service stamps are deployed globally• Regional – one or more stamps in a given region • Global – multiple regions multiple stamps

• Azure App Service depends on other services• SQL Azure• Storage• Network• Cloud Services (management)

• Azure App Service deployment gone bad• Random bugs

11

http://azure.microsoft.com/en-us/status/

Self-help: where it’s possible.

13

(Where is the Dev?)Application IssuesImpacts specific

customer SLA

(Hey, Man)Generic FAQ

No SLA impact

(OMG!!!)Platform Issue

Impacts multiple customers SLA

Redmond, We’ve Got a Problem

(This is weird) Customer Reported

Issues

(Where is the fix?)Platform Issue

Impacts multiple customers SLA

What You Can’t Do

• You can’t RDP into a VM• Your application can’t emit ETW• You don’t have access to VM / Site ETW• You cant install MSI

14

What Diagnostics Tools Are Available?• Logs• HTTP Logs• Event Logs• .NET Detailed Error Message Logs• Failed Request Tracing Logs• .NET Application Logs / Live Streaming • PHP, Node.JS, Java Error Logs

• Azure Management Portal• Application Insights • Kudu Endpoint / Support Portal• Partners solutions • New Relic (.NET only)• Zend Zray (for PHP)

15

Demo

• Welcome Kudu – Overview of Azure App Service’s Best Worst Kept Secrete

16

There is a big event happening and I want to monitor live HTTP traffic across all my regional deployments.

• Support Site Extension: Observe• Live Monitoring

17

I want to isolate slow response/exceptions coming from my Web App (.NET pipeline)

• Support Site Extension: Analyze• FREB• Event Viewer

18

Why is my App Spinning?

• Support Site Extension: Analyze• DaaS

19

My PHP Web App is loading slow. Why? It’s just a simple WordPress site!!

• Support Site Extension: Analyze • DaaS with PHP Parsers • ClearDB Integration

20

I get a pingdom alert in the middle of a night Simple site restart Go back to bed (why can’t you just automate this?)

• Support Site Extension: Mitigate• Auto Healing

21

I think there is a memory leak in one of my Web Apps – this is affecting other sites too!

• Support Site Extension: DaaS with Leak Analysis

22

Want to report potential service interruption issue?

• Support Site Extension: Need Help?• Report an issue with Engineering team • Get help from Forums • Contact Azure Support

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