Request Tracing Service

Since Payara Server 4.1.1.164

The Request Tracing Service provides tracing facilities for multiple protocols and process communications done by the components of deployed applications.

The service helps users to detect application slowness and performance degradation by logging requests that exceed a given threshold. The trace data from long-running requests gives insight to solve bottlenecks and other performance issues.

The service is available in both Payara Server and Payara Micro, though the service configuration is different in Payara Micro.

The following types of requests are traced if the service is enabled:

  • REST (JAX-RS endpoints)

  • Servlets (HTTP requests)

  • SOAP Web Services

  • WebSockets

  • EJB timers execution

  • Inbound JMS messages received by an MDB

  • JBatch jobs creation

  • Tasks executed by injected Managed Executors.

Once a request is being traced, the service collects events during its processing, so that it may later provide a report of what was happening and how long it took if the configured threshold is exceeded. The following events are observed and reported:

  • Start and end of the request

  • Entering or exiting an EJB method execution

  • Entering or exiting a CDI bean method (only configured methods are traced)

  • SQL statement invocations via JDBC calls

  • Starting or finishing JTA transactions

  • JASPIC authentication calls