Anatomy of a Modern Node.js Application Architecture

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Anatomy of a Modern Node.js Application Architecture WEB SERVER SLOW CODE EXECUTION QUEUE SERVER WORKER SERVERS CACHE ERRORS VIEW RUNTIME ERRORS • Troubleshoot > Errors > Error Transactions • Double-click Transaction Snapshot • Drill Down > Error Details DATABASE INTERNAL WEBSERVICES DISTRIBUTED TRANSACTIONS CONFIGURE & VIEW • Navigate to AppDynamics Exchange • Search for your server • Download and Install extension • Navigate back to AppDynamics Controller • Analyze > Metric Browser • Find your extension VIEW • Navigate to Application Flowmap • View latency to your cache server CACHE CONFIGURE & VIEW • Navigate to AppDynamics Exchange • Search for your server • Download and Install extension • Navigate back to AppDynamics Controller • Analyze > Metric Browser • Find your extension INTERNAL WEBSERVICES WEB SERVER TRANSACTIONS CONFIGURE BUSINESS TRANSACTIONS • Navigate to Business Transactions • Right-click Transaction • Choose conguration options to organize transactions CONFIGURE TRANSACTION DISCOVERY • Congure > Instrumentation > Select Node.js Tier • Scroll down to Custom Rules • Create rules to group, match and exclude your transactions INFO In a service-oriented environment the performance indicators of the distributed nature of the transaction is an integral aspect of characterizing transaction performance. AppDynamics applies distributed transaction tracing to for all business transactions as well as for the entire application. Using a tag, trace, and learn approach, AppDynamics traces the transaction context across all tiers, including JVMs, CLRs, Node.js servers, and calls to HTTP, SOAP, databases, third party web services, etc. ANALYSIS VIEW • Navigate to your Application Dashboard > Flowmap • Find Queue Server • View latency to your queue server VIEW • Application Dashboards > Transaction Snapshots • Find transactions that speak to your Queue server • Double-click > Start Drill Down > Call Graph • Find method call that sends job, click to correlate to downstream worker server for associated call graph QUEUE SERVER WORKER SERVERS INFO When a Node.js application communicates with an external component that is not being monitored as part of the same business application, such as a database or a message queue, you can monitor the performance data for the communication. AppDynamics displays distributed communication performance in the business application and business transaction ow maps. NODE.JS VIEW UNCAUGHT EXCEPTIONS • Troubleshoot > Errors > Exceptions • Double-click Exception • Double-click Transaction Snapshot • Drill Down > Error Details CONFIGURE ERROR REPORTING • Congure > Instrumentation > Error Detection > Node.js - Error Detection • Congure Ignored Exceptions or Logged Messages NODE.JS CONFIGURE TRANSACTION API • Use the custom API functions to manually dene the beginning and ending of a transaction from within your code • Navigate to Business Transactions to view Hint: This is useful in cases where you have a transaction executing jobs in an innite loop and want to register each job as a transaction. NODE.JS VIEW APPDYNAMICS MACHINE AGENT • Download & Install Machine Agent • Navigate to Servers > App Servers > [Your Node.js Tier] > [Node.js Node] • Select Hardware VIEW HARDWARE • Application Dashboard > Transaction Snapshots > Show Filters • Select search criteria > Search • Double-click Transaction Snapshot • Start Drill Down > Hardware COMPARE RELEASES • Analyze > Compare Releases • Select time ranges to compare VIEW NODE.JS METRICS • Analyze > Metric Browser > Application Infrastructure Performance • Expand [Node.js tier] > Expand Node.js metrics • View specic additional Node.js metrics EXTERNAL WEBSERVICES EXTERNAL WEBSERVICES VIEW • Servers > remote services • Double-click remote service VIEW • Troubleshoot > Slow Response Times > Slowest DB & Remote Service Calls • Select HTTP DATABASE DATABASE VIEW • Navigate to Servers > Databases • Double-click your DB • Select your Node.js Tier • View slow queries VIEW • Application Dashboard > Transaction Snapshots > Show Filters • Select search criteria > Search • Double-click Transaction Snapshot • Start Drill Down > SQL Calls VIEW • Navigate to Application Dashboard > Flowmap • Right-click on Database • Select ‘View in Database Monitoring’ WEB IOS / ANDROID CONFIGURE • End User Experience > Web > Pages & AJAX Requests • Double-click on selected Page • View Summary Timeline to locate bottleneck VIEW • End User Experience > Web > Analyze • Focus on location, browser type, device type, and other combinations to analyze performance. END USER EXPERIENCE SET HEALTH RULES • Alert & Respond > Health Rules VIEW TRANSACTION SNAPSHOT • Application Dashboard > Transaction Snapshots > Show Filters • Select search criteria > Search • Double-click Transaction Snapshot • Start Drill Down • Click on Call Graph OR Hot Spots to view call graph • If Process Snapshot exists, it will have a clickable GUID in the Summary tab VIEW PROCESS SNAPSHOT • Navigate to Servers > App Servers > [Your Node.js Tier] > [Node.js Node] • Click ‘Collect Process Snapshots’ • Enter a time between 1 and 60 seconds • Double-click Process Snapshot in list to view

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