Defining custom error-detection rules and notifications on the Analyzer


BMC Real End User Experience Monitoring Software Edition version is the latest version of the component and is compatible with TrueSight Operations Management versions 11.3.01 and later.

A web application can encounter a variety of problems. Most of them are handled by the default system error-detection rules in BMC Real End User Experience Monitoring Software Edition. However, you can extend this capability with up to 100 custom error-detection rules that reflect specific needs of your web application.

Message types

Message type

Typical use case


Application-specific errors

Many application environments have their own error pages that handle problems gracefully.

For example, an application shows an error page when a user enters an invalid password. This page would return a normal HTTP status code of 200.

There is two ways to detect this error:

  • Create a custom error condition that looks for the error page by matching its URI stem, because the page is being delivered correctly. You can create a custom error-detection rule to look for that error and measure it.
  • Create a custom field that extracts content from the error page. Based on the value of this custom field, the error-detection rule triggers an error or not.

Built-in errors

You might only care about a 404 Page Not Found error only if it affects a container or a document but not a component of a page.

Turn off the system default "not found" error-detection rule and replace it with a more detailed one that looks for "not found" errors on certain types of objects.

Subjective or performance errors

If a PDF file takes more than 2 minutes to download, you might consider this a problem.

Create a custom rule that is triggered when objects ending with .pdf have an end-to-end time longer than 2 minutes.

Interesting events in your web traffic

You might consider a particular user's logging on to be important.

Define an error-detection rule that contains an informational condition to watch for this.

In the Administration > Thresholds and problem detection > Error detection rules page of a Real User Analyzer, you can perform the following operations:

  • Edit email alert settings for all the rules
  • Edit rules
  • Copy rules (to create a rule with similar settings to another rule)
  • Delete rules
  • Change severity for the rules (Error or Informational condition)
  • Change categories for the rules:
    • Network error
    • Client error
    • Server error
    • Application error
    • Content error
    • Custom error
  • Change priorities for the rules (the order of rules firing)
  • Performing bulk operations to the selected rules (turn on of off, enable or disable alerting for a rule, etc.)

Related Topics

Creating a custom error-detection rule

Configuring error alert notifications

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