Cannot see any data running in Application Insight

Syed muhammad harith al gadri syed abdul rahman 25

Hi , Harith here

I just cant pinpoint what went wrong for the implementation

I follow this doc https://learn.microsoft.com/en-us/azure/azure-monitor/app/opentelemetry-enable?tabs=java#frequently-asked-questions

To install the agent automatically in my maven project,

I used this code to add the dependency

<dependency> <groupId>com.microsoft.azure</groupId> <artifactId>applicationinsights-agent</artifactId> <version>3.5.1</version> </dependency>

After I rebuild and the applicationinsights-agent.3.5.1.jar is already installed in WEB-INF/lib file

Following up steps after that I've created applicationinsight.json for putting the connection string configuration and I put it in the same directory as the jar file.

Any missing steps I need to figure out?

SwathiDhanwada-MSFT 17,401 Reputation points

2024-03-20T08:27:04.41+00:00

@Syed muhammad harith al gadri syed abdul rahman Community SMEs are looking into it and will provide a response soon.
Syed muhammad harith al gadri syed abdul rahman 25 Reputation points

2024-03-21T00:36:04.35+00:00

@AnuragSingh-MSFT ,Thank you for your input.

For context,this is for on premises server hosting a web application in Tomcat.Theres a multiple maven java application using same server instances which is Tomcat.

With that being said,is the JVM arguments need to be set at the server level and will it affect all deployed applications? How do I differentiate each application? Is it by creating multiple resource with different connection string and each application have different applicationinsight.json?

Any docs or reference that I could approach to make this working?

Thanks in advance
AnuragSingh-MSFT 19,936 Reputation points

2024-03-22T10:42:24.0966667+00:00

Syed muhammad harith al gadri syed abdul rahman, thank you for the reply.

Maven has options to specify the arguments passed to JVM using environment variable - Configuring Apache Maven Based on my understanding (as I have very limited knowledge of Maven) this would work well if a single process/server is running the java application - i.e., for every app a new Tomcat server is forked, this environment variable is set and then it loads the application.

However, if a single tomcat process is running multiple application, then this approach might not work, as the same -javaagent parameter will be passed to all the applications. In such case, something like what is discussed in the following link might help - Specify javaagent argument with Maven exec plugin.

You could also explore setting this JVM argument from Tomcat itself - https://stackoverflow.com/questions/7738794/add-jvm-options-in-tomcat
AnuragSingh-MSFT 19,936 Reputation points

2024-03-26T05:50:21.25+00:00

Syed muhammad harith al gadri syed abdul rahman, Following-up to check if you had a chance to review the answer provided.

Please let me know if you have any questions.
Syed muhammad harith al gadri syed abdul rahman 25 Reputation points

2024-03-26T23:57:12.91+00:00

Hi @AnuragSingh-MSFT ,thanks for the response. I'm currently still trying to make it working.By the option given, is the agent will be configured on maven dependencies only? so it needs to apply to other project as well?
AnuragSingh-MSFT 19,936 Reputation points

2024-03-27T07:25:13.7733333+00:00

Syed muhammad harith al gadri syed abdul rahman, you can set it up as dependency also. The sample pom.xml file in the sample code below shows a cleaner way to download the applicationInsights-agent and save it to a specific output directory:
https://github.com/Azure-Samples/ApplicationInsights-Java-Samples/tree/main/maven

Now, for running this application from Tomcat, the JVM argument (-javaegent:path_to_agent) is set using CATALINA_OPTS or JAVA_OPTS For more details, see ApplicationInsights configuration for Tomcat

For your specific scenario, multiple application/projects running on same instance - I am not sure how this is configured. I would suggest checking with the Tomcat community with this scenario specific question - especially to understand how to set jvm argument for a specific application.
Syed muhammad harith al gadri syed abdul rahman 25 Reputation points

2024-03-27T08:22:33.0833333+00:00

Hi @AnuragSingh-MSFT ,thanks for the response, any other option that can be done for this other than using this agent? perhaps would javascript SDK would work? we are currently just trying to make it into application insight
AnuragSingh-MSFT 19,936 Reputation points

2024-03-29T04:26:11.2166667+00:00
Syed muhammad harith al gadri syed abdul rahman - javascript sdk are not applicable to Java applications. They are to monitor javascript webapps.

There are only 2 options available for java application instrumentation -

as mentioned above using the -javaagent parameter to the JVM.

If you develop a Spring Boot application, you can optionally replace the JVM argument by a programmatic configuration. For more information, see Using Azure Monitor Application Insights with Spring Boot.

Hope this helps.
AnuragSingh-MSFT 19,936 Reputation points

2024-04-01T05:35:32.6166667+00:00

Syed muhammad harith al gadri syed abdul rahman Following-up to check if you had a chance to review the reply provided.

If the answer helped, please click Accept answer so that it can help others in the community looking for help on similar topics.
Syed muhammad harith al gadri syed abdul rahman 25 Reputation points

2024-04-01T05:41:40.0266667+00:00

Hi @AnuragSingh-MSFT , for context yes it is a java web application. I think I already found a work around method where I include the javascript SDK in the application code and we can see the data already.However not for the live metrics.In that case for getting the live metrics also and the server client telemetry what I do is using the application insight agent hosted on the service level which is tomcat. Is this something that make sense to you? Just to confirm I didnt do anything that are redundant at this point
Syed muhammad harith al gadri syed abdul rahman 25 Reputation points

2024-04-01T22:06:08.7133333+00:00

Anyway this seems to be working, Thanks a lot ! :)

Accepted answer

AnuragSingh-MSFT 19,936 Reputation points

2024-03-20T09:42:43.1966667+00:00

@Syed muhammad harith al gadri syed abdul rahman, thank you for posting this question here.

Have you configured the JVM to load applicationInsights-agent-*.jar file with -javaagent parameter. For more details, refer to the first section in the Modify you Application section here - Modify your Application

You could also use the selfDiagnostics flag in the applicationInsight.json file to enable internal logging from the AppInsight agent itself locally. This would help understand if the agent even got loaded by the JVM (in which case a log file gets created and some entries are populated in it). In case the agent was loaded but data could not be sent to AppInsights workpace, this log file should contain additional information. For details, see Self-diagnostics.

Hope this helps. Please let us know if you have any questions.
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Cannot see any data running in Application Insight

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