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The Web Server Agent automatically discovers incoming HTTP requests as business transaction entry points. See Transaction Detection for Web Servers.
The agent automatically discovers exit points to Apache modules and resolves them to the downstream tier or backend. See Backend Detection for Web Servers.
The Web Server Agent tracks the following metrics for web servers:
- calls per minute and time spent in the web server tier.
- calls per minute and time spent in Apache module backends.
- number of errors.
The agent automatically identifies slow and stalled transactions according to dynamic baselines. When it detects an HTTP response code greater than 400, the agent identifies the transaction as an error transaction.
The agent takes transaction snapshots that include the following data:
- HTTP error codes
- HTTP request data
- Cookie, including JSESSIONID
- Exit calls to Apache modules