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Knowledge Base Articles

What does the "Time range not supported error" mean?

Symptoms Issue:  Time range not supported error   Diagnosis Log in into the controller database and verify the following properties:   <Controller_Install_Dir>\bin\controller[.sh/.bat] login-dbselect name, value from global_configuration_cluster whe...

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How can custom correlation be used with validation?

  Use Case Description Using the flight search sample application, this example shows the use of the validation configuration. Prior to applying the custom correlation configuration with validation, the flow map shows the following.   Flow Map Withou...

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pclark by AppDynamics Team (Retired)
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Why are snapshots missing in the Controller?

How does the monitored application, its BT characteristics and load, affect snapshots in the Controller? Updated on 7/30/18   This article describes common issues that can explain why expected snapshots might be missing in the Controller. The issues ...

pclark by AppDynamics Team (Retired)
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How do I block external access to the Controller Database?

This topic provides a firewall-based method to block external access to the Controller MySQL Database by dropping all traffic trying to connect to port 3388.   Environment and components Linux such as RHEL, Centos, systems using iptables if your syst...

pclark by AppDynamics Team (Retired)
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Zero Calls Per Minute for a Business Transaction

Question A number of business transactions are showing up, but they have 0 calls (using data for last one year). Why they would at all show up. If a business transaction was discovered by an agent, that means there was a call for that business transa...

pclark by AppDynamics Team (Retired)
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Why is there no data in the Metric Browser?

This may indicate that the agents are not correctly configured. Begin troubleshooting by looking at the server.log file. All log files for Controller are located in the <Controller_Installation_Directory>/logs folder.   Error Message Solution ...

pclark by AppDynamics Team (Retired)
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Policy and Health Rule Configuration Matrix

This article describes how policies and health rules behave depending on which entities/objects are used in the configuration.   You can specify affected entities, such as nodes and tiers, in both Health rules and policies. It is important to underst...

pclark by AppDynamics Team (Retired)
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Controller Install Log

Question How can I debug my controller install?   Answer The Controller installer actually keeps a verbose log of what it is doing on every platform. The filename is of the general format i4j_log_Controller_nnnnnnnnnnnnnnnnnnn.log.   On Linux, you ca...

pclark by AppDynamics Team (Retired)
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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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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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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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