Browser Agent and .NET Agent Traces are not correlated

Products

• CA Application Performance Management Agent (APM / Wily / Introscope)
• INTROSCOPE

Issue/Introduction

Browser Agent and .NET Agent Traces are not correlated   - Checklist

Environment

APM 10.5.2 and higher version

Resolution

1.- Traces correlation depends on the below Agent property, make sure it has been enabled in the IntroscopeAgent.profile:
introscope.agent.browseragent.responseCookieEnabled=true
This is a hot property.
 
2.- In your browser press F12, go to the “Network tab”, open the page you would like to inspect, then click  “Cookies” tabs.
Verify that x-apm-brtm-response-bt-page-<you-app-url> includes the CorBrowsGUID or value.

 

If you can't find the cookie, then problem is in inserting the cookie, make sure Cookies are enabled in the browser, see Browser Agent Prerequisites:

https://docops.ca.com/ca-experience-collector/en/browser-agent/implement-the-browser-agent#ImplementtheBrowserAgent-VerifytheBrowserAgentPrerequisites

 

If you find the cookie, switch from the “Network” to the “Console” tab, check if the javascript can read the cookie, make sure you don’t see any warning message, the problem could be when reading the cookie, possible causes:

a) cookie has already expired : increase introscope.agent.browseragent.responseCookie.expirationTime =3 to some high number, and try again
b) cookie can't read because the cookie name. This requires debugging in the JavaScript side. Open the logging.config.xml, set <level value="DEBUG">, save the IntroscopeAgent.profile so the change in the logging.config.xml is trigger immediately, reproduce the issue and send the information to CA Support.
 
3. Verify that the Introscope trace passed the trace session

Go to the <DxC-hostname> | DxC Agent | Logstash-APM-Plugin | Business Segment, click “Traces” tab, locate the Traces for the application you are analyzing
Go to the <App-hostname> | <Process> | <agent> | Frontends , click Traces tab, locate the relevant Introscope traces.
 
Below is an example illustrating BrowserAgent and Introscope correlation, you can see 2 threads containing:
a) Browser Agent timing metrics gathered by DxC reported as “Business Segment” data
b) Normal trace gathered by the agent  instrumentation.
 
Notice how “Cross Process Data” matches in both threads. You can also jump to Business Segment in DxC in case you need to investigate further the issue from the DxC node