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Question How can I use AppD4DB to alert if a database instance goes down? This is not for when an OS goes down. We want to know if SQL Server crashes, for example. Answer Set up a Custom SQL Alert like this: If the SQL Connection is successful...
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...
You can assign multiple MIDCs to the same class and method or multiple information points to the same class and method. However, you cannot assign more than one type of interceptor to the same class and method in a .NET application. For example, de...
JDBC connection pool metrics are not configured out-of-the-box for GlassFish. To configure them, uncomment the JDBC connection pool section and provide the relevant information in the following file: <agent_home>/ver<version_number>/conf/jmx/ser...
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...
In certain situations, you may encounter the following exception in the agent.log file for the Java Agent deployed on the WebSphere Application Server (WAS). [AD Thread-Transient Event Channel Poller0] 17 Aug 2011 08:14:08,031ERROR JMXTransientOper...
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 ...
Updated 7/23/18 Issue I am receiving the following notification on the Controller. CONTROLLER_METRIC_DATA_BUFFER_OVERFLOW Explanation This message indicates that the data buffer used to store the metrics is full before these can be flushed ...
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...
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...
Question How can I check the expiration date of the SSL certificate being used by my Controller? Answer 1. Use the following command and change localhost:8181 to match the controller you are querying. echo ^D |openssl s_client -connect localhost:...
I need to instrument an Adobe ColdFusion app — how do I do it? Table of Contents How do I install the Java Agent on Cold Fusion?Tips: ColdFusion with Java AgentResource Summary How do I install the Java Agent on Cold Fusion? Install the AppDynam...
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...
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...
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...
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...
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...
Updated 6/15/18 If one or more of your expected business transactions (BTs) are not appearing on the Business Transaction list in your Controller UI, complete the following troubleshooting steps to determine the root cause. Do you see any busines...
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...
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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