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Debugging and interacting with production applications
This document discusses debugging and monitoring applications in Microsoft Azure. It provides an overview of Azure Monitor, which offers unified monitoring of metrics, logs and other telemetry across infrastructure, applications and networks. Azure Monitor uses machine learning capabilities to provide data-driven insights. It also integrates with popular DevOps, issue management and IT security tools. Application Insights is highlighted as a key part of Azure Monitor for application monitoring and analytics. It provides visibility into applications, insights to find and fix problems, and helps with optimization. Features like instant analytics, integrations with DevOps tools, app mapping and correlated tracing are discussed. Snapshot debugging and deployment slots in Azure are also summarized.
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Debugging and interacting with production applications
- 1. Microsoft Azure Training Day:Migrating and modernizing your apps to the cloud
- 2. Debugging and Interactingwith Production Applications Michel Hubert CTO Infeeny
- 3. Why is workingwith production apps difficult? Frustrations with getting exceptions / logs / data Issues caused by config, data, and scale Acquiring and configuring the tools
- 4. Monitoring Landscape –Apps & Infrastructure Apps NetworkInfrastructure
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- 7. Azure Monitor Advanced diagnosticsand analytics powered by machine learning capabilities Data Driven Insights Rich ecosystem of popular DevOps, issue management, SIEM, and ITSM tools Workflow Integrations A common platform for all metrics, logs and other monitoring telemetry Unified Monitoring Metrics Log Common Store Full observability for your infrastructure, app and network
- 8. Signals and Sourcesin Azure Azure Subscriptions Security Center Resource Manager Service Health Azure Resources Network Security Groups Virtual Machines Storage Accounts Guest OS (‘user space’) Linux syslog Windows Perf Counters Application User telemetry Application logs Azure Tenants Azure Active Directory Signals Sources
- 9. Unified Monitoring Metrics Logs Application Container VMMonitoring Solutions Insights Dashboards Views Power BI Workbooks Visualize Metrics Explorer Log Analytics Analyze Alerts Autoscale Respond Event Hubs Ingest & Export APIs Logic Apps Integrate Azure Monitor Custom Sources Application Operating System Azure Resources Azure Subscription Azure Tenant
- 10. Wiring It AllUp Metrics Logs Azure Monitor Custom Sources Application Operating System Azure Resources Azure Subscription Azure Tenant Logs & Metrics emitted by Azure Diag. Extensions + Agents Windows + Linux Support Workload Agnostic Application Insights SDK Driven Multi-Language Support For everything else
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- 12. Application Monitoring andAnalytics Visibility Insights Optimization Get the big picture Find & fix problems Build, measure, learn
- 13. Azure Application Insights Visibility – Getthe big picture Insights – Find & fix problems Optimization – Build, measure, learn
- 14. Application Insights Overview Telemetryis collected at each tier: mobile applications, server applications and browser Telemetry arrives in the Application Insights service in the cloud where it is processed & stored Get a 360° view of the application including availability, performance and usage patterns
- 15. Sources of Telemetry 1Outside-in monitoring Observed user behavior2 Developer traces and events3 Observed application behavior4 Infrastructure performance5
- 16. Intelligent Application PerformanceMonitoring (APM)
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- 19. App Map toPinpoint Problem Server
- 20. Correlated tracing acrossservers
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- 22. Run analytics queriesfor investigations, statistics, and root cause + trend analysis Log Analytics advanced query experience now in Azure Portal Utilize ML algorithms for clustering and anomaly detection RBAC per type Azure Monitor Logs
- 23. Using Analytics toDig Deeper
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- 32. What is aDeployment slot?
- 33. What is adeployment slot?
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Editor's Notes
- #7 Why is working with production apps usually difficult? There are a number of reasons. It can be difficult to pull logs and data. Tracking sessions is complicated when there are multiple load-balanced instances. Tools may be scattered and hard to find and configure.
- #10 Let’s talk about Azure’s over-arching solution for monitoring.
- #15 On overview, show the Http 5x, data in, data out, etc. and explain this is part of monitoring Open log streaming and navigate the site, show the streaming Explain Application Insights is a part of Azure Monitor and you’ll explore those details next Note: logs turn off automatically after 12 hours
- #18 This is an example dashboard. From one place you can (reiterate bullets here).
- #19 This is an overview of how Application Insights works.
- #20 Application insights is designed to handle telemetry from all areas of the stack. It’s “outside-in” meaning monitoring starts at the client (mobile, desktop, browser, game console, or edge device), allows for user-focused events, collects custom developer traces/events and standard telemetry emitted by the platform and infrastructure.
- #21 Application insights provides intelligent performance monitoring, looking across the full stack and tracking performance through layers of dependencies.
- #22 All of the data collected by Application Insights can be analyzed using a powerful built-in analytics query language.
- #23 Application Insights can be integrated to your DevOps workflow, for example by providing a gate the prevents an application from being promoting to production unless specific performance levels are met in the staging environment.
- #24 Application Insights automatically provides an application map that is generated based on observed dependencies between components of your application.
- #25 With Application Insights, drilling into a transaction is possible with correlating tracing that maps the entire interaction from the browser down to the database.
- #26 Navigate to Application Insights and show the overview Click on the Application Map Click on the SQL speed and in the right pane choose “investigate performance” Show the results Go to Live Metrics stream. Collapse “Outgoing requests” and “Overall Health.” Navigate the site and show the results in Live Stream. Show the Performance graph
- #27 Let’s take a closer look at how to analyze your collected telemetry.
- #28 Log analytics provides query capabilities directly from the portal. It can be locked down with role-based security and features built-in algorithms for detecting anomalies and clusters in the data.
- #29 The data provided by log analytics can be displayed as a table or in a variety of different chart formats. You can easily save queries to reuse later.
- #30 Open application insights Click on Logs (Analytics) Open Help -> Documentation -> Tutorials -> Log Queries Go to “Sample queries” -> Reports failures -> Exceptions causing request failures Explain the query Show “Requests’ performance” -> response time trend Show different options to plot, graph, etc.
- #32 Snapshot debugging is a powerful feature that allows you to debug your application in production.
- #33 It is designed to support distributed applications.
- #34 As with other Azure services, it supports role-based access control.
- #35 Debugging locally is straightforward because there is typically one instance of the app running on a single server.
- #36 The cloud complicates things. In production, you have multiple users each accessing your distributed application with instances spanning multiple servers. How do you debug a specific end-to-end experience?
- #37 Snapshot debugging captures the unique callstack for a specific session so you can debug without having to understand which client or server was part of the end-to-end flow that resulted in an exception.
- #38 Navigate to Application Insights Navigate to Failures Drill into an operation on the right panel Click on “drill into operations” Click on an operation to open the snapshot Click “open debug snapshot” in the right If necessary, add the debugger role Optional: if you have VS Enterprise, download the snapshot and open it there Explain it is a NuGet package added to the code
- #39 As a last step, once you’ve identified, triaged, diagnosed and repaired an issue, what is the safest way to roll out your update? Deployment slots make the process of patching code safe and seamless.
- #40 A deployment slot is simply another instance of your application that runs in the same process with it’s own version of code and settings. It allows you to run a configuration in the target environment side-by-side with your production application.
- #41 Deployment slots can handle multiple scenarios, from staging environments to run smoke tests before turning code on in production to canary testing so that you can pilot a change on a small percentage of users to evaluate before doing a larger scale rollout.
- #42 Deployment slots enable you to …
- #43 TBD
- #45 And that’s a statement around how we feel about Azure. We want to invent with purpose in how we think about it what we deliver to you but also enable you to invent with purpose. And we do that in some key ways. TRANSITION: I talk about these ways as our promises to you on what Azure will always deliver and why we’ll help you.