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Knowledge Base Articles

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 ...

Anonymous by Not applicable
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How do I start an agent and WebLogic using an Ant script?

Question I am trying to start the Java Agent in a WebLogic environment that deploys and starts the Weblogic domains via an ANT script. Where in the Ant target do I place the agent. Has anyone tried to do instrumentation via an Ant script?   I added s...

Anonymous by Not applicable
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How do I instrument JBoss Fuse?

Question Has anyone successfully instrumented a JBoss Fuse environment?   Answer Review this blog for the steps someone used for instrumenting JBoss Fuse 6.0.0:  http://peter-on-java.blogspot.com/2013/06/setup-appdynamics-for-fuse-esb-in-5.html

Anonymous by Not applicable
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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...

Anonymous by Not applicable
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How can I determine the root cause of CLR crashes?

Updated on 7/30/18   Question We see CLR crashes happening a few times a day. How can I use AppDynamics to determine the root cause of the crashes?   Answer One issue usually causes multiple CLR crashes. Here are some places to look to help you find...

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Anonymous by Not applicable
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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...

Anonymous by Not applicable
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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 ...

Anonymous by Not applicable
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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...

Anonymous by Not applicable
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Access-Control-Allow-Headers Error in EUM

Symptoms You encounter an issue with the POST to /eumcollector/beacons.   JS error is "Request header field X-TS-AJAX-Request is not allowed by Access-Control-Allow-Headers". Diagnosis Research revealed that Access-Control-Allow-Headers is a CORS pr...

Anonymous by Not applicable
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Why am I unable to get JMX metrics from a GlassFish Server?

In some situations, JMX metrics from GlassFish are not reported. Also, some metrics may not be enabled by default. Try this solution:   Confirm that JMX monitoring is enabled in the GlassFish server. Navigate to the <agent_home>/ver<version_number>/c...

Anonymous by Not applicable
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Instrumenting Java Web Start Applications

Java Web Start software allows you to download and run Java applications from the web and is included in the Java Runtime Environment (JRE) since release of Java 5.0. Java Web Start applications are launched by using the Java Network Launch Protocol ...

Anonymous by Not applicable
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How do I view a breakdown of HTTP error codes?

Question A count of HTTP error codes appears on the main dashboard. Is there a way to get a list of the specific error codes, such as 301, 401, 404, 500 and so on?   Answer In the Controller UI, go to Troubleshoot -> Errors, select the Exceptions tab...

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Anonymous by Not applicable
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