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Knowledge Base Articles

Tier and Node Life Cycle

This topic describes the tier and node life cycle within AppDynamics. Phase 1 - Agent Startup Phase 2 - Registration Phase 3 - Metric Registration Phase 4 - Metric Reporting Phase 5 - Metric Rollup   A combination of agent logs and REST logs reveal t...

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pclark by AppDynamics Team (Retired)
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Error Detection Life Cycle

Understanding the AppDynamics error detection life cycle can help you to troubleshoot missing errors and related error metrics. Use agent log files to search for evidence of each phase of error detection and reporting.   Errors and exceptions are cou...

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pclark by AppDynamics Team (Retired)
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Async Thread Detection Life Cycle

Understanding the AppDynamics asynchronous (async) thread detection life cycle can help you to troubleshoot missing threads and related async metrics. Use agent log files to search for evidence of each phase of thread detection and reporting.   The p...

pclark by AppDynamics Team (Retired)
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How do I enable DEBUG level logging?

What are the steps to enabling DEBUG mode for logging? Updated on 7/26/18   Most AppDynamics app agents use INFO level logging by default. Sometimes, it is useful to collect logs with DEBUG level logging—for example: when confirming life cycle phases...

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pclark by AppDynamics Team (Retired)
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Migrating Controller to New Subnet in .NET Environment

ISSUE: Controller IP changed but the .NET Agent doesn't pick up the DNS Change   The agents are configured to use a hostname currently to communicate with the Controller. The Controller's IP address and DNS entry are being changed, for example in the...

pclark by AppDynamics Team (Retired)
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Confirming BT Instrumentation for Web Frameworks

This flowchart describes the steps to confirm BT instrumentation when you are using a web framework. For a complete description of the BT Life Cycle, see: Business Transaction Discovery Life Cycle.     Supported Framework? First check our lists of s...

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pclark by AppDynamics Team (Retired)
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What is the Business Transaction discovery life cycle?

To troubleshoot business transaction discovery it is helpful to have an understanding of the AppDynamics entity life cycle. A business transaction is a discrete piece of business application functionality that is tracked from beginning to end, potent...

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pclark by AppDynamics Team (Retired)
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Exposing an MBean as a JMX Metric

Default JMX Metrics Example  Some MBeans exposed by various supported application servers are preconfigued as JMX Metrics that can be viewed in the JMX Metrics Browser.   In this screen capture of the JMX Metrics Browser, under Web Container Runtime,...

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pclark by AppDynamics Team (Retired)
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Detecting JTurbo JDBC calls

Question Our application uses JTurbo JDBC driver to connect to a MS SQL Database. We can not see the JDBC calls to the MS SQL Server database backend. How can we fix this?   Answer Refer to this article  Using Node Properties to Detect JDBC Backends ...

pclark by AppDynamics Team (Retired)
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Instrumenting TIBCO ActiveMatrix BusinessWorks

This article represents the latest collected set of wisdom from AppDynamics field engineers.   For information on how to configure the Java Agent with TIBCO, see Configure the Java Agent for TIBCO BusinessWorks   Required Agent version BusinessWorks...

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pclark by AppDynamics Team (Retired)
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JBoss EAP Startup Settings

For JBoss EAP AppDynamics supports the underlying JVM and framework versions. Our product documentation has specific installation instructions for JBoss (open-source versions) but those instructions do not necessarily work for JBoss EAP.   JBoss EAP ...

pclark by AppDynamics Team (Retired)
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What is the backend discovery life cycle?

Confirming Backend Discovery and Instrumentation This article describes the backend discovery life cycle. Understanding these details can help you debug instrumentation issues of backends that are not automatically discovered. The phases referred to ...

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pclark by AppDynamics Team (Retired)
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AppDynamics Auto-Discovery Life Cycle

AppDynamics automatically discovers various entities that make up your web applications, such as app servers, databases, and remote services. Other activity in your application, such as errors, exceptions, async activity, and business transactions ar...

entity-life-cycle.png entity-life-cycle-plus-metric-rollup.png
pclark by AppDynamics Team (Retired)
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How do I find and configure missing entry points?

Contents: Who would use this workflow?How to know which POJO to use?ImplementationLimitations   Who would use this workflow?  Note: This workflow has largely been replaced by the Live Mode feature.   If you don't see expected activity in your applica...

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pclark by AppDynamics Team (Retired)
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Why is the Machine Agent not reporting properly?

Users who are troubleshooting scenarios where the AppDynamics *Standalone Machine Agent is not reporting metrics as expected will find causes and solutions here. The following solutions apply to versions 4.4 and higher.   Contents: Installation issu...

pclark by AppDynamics Team (Retired)
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How do I enable allocation tracking for core Java Classes?

Question I am using the Object Instance Tracking feature. When I try to Drill Down on a specific class, I get the following message when I go to the Allocation Tracking tab:   "Allocation Tracking is not enabled for System / core Java classes."   How...

pclark by AppDynamics Team (Retired)
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Why is the Java Agent not reporting to the Controller?

Problem: App Agent log is empty, or nothing is reported to the Controller. Common Solutions: If your agent is behind a network firewall or load balancer, open ports to enable communication between the agent and the Controller.Avoid installing an App ...

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pclark by AppDynamics Team (Retired)
  • 15717 Views
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How do I exclude errors and exceptions from detection?

Content revised  8/1/18 You may want to configure Error Detection to ignore known exceptions. For example, you may see a recurring exception thrown from a framework you are using. If the exception is well-known and insignificant, you might want to el...

Screen Shot 2018-06-28 at 1.25.21 PM.png File not found logged error message.png Ignoring Error Example 1.png Configuration to ignore the error message.png
pclark by AppDynamics Team (Retired)
  • 62854 Views
  • 17 comments
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