Skip Headers
Previous
Previous
 
Next
Next

Definition of Terms

Table: Flight Recorder Terminology defines Flight Recorder-specific terms you will encounter both while using the tool and in the Flight Recorder documentation.

Flight Recorder Terminology

Term Definition

Buffer or (Recording Buffer)

The temporary storage that the Flight Recorder uses. It can be in-memory or a combination of in-memory and disk.

Consumer

A component that extracts data from the Flight Recorder. Potential consumers include the jrcmd command-line tool, the Java Mission Control console, Enterprise Manager, the WLDF component of WLS, ADR and so on. Consumers can also control and manage the operating mode of the Flight Recorder during runtime.

Consumer API

An API by which the consumer manages the Flight Recorder. The Consumer API is a JMX API used for configuration, flushing data to file, starting recordings, and so on. The Consumer API will be available to other product groups at Oracle.

Data Gathering Mode

The value that defines what information the Flight Recorder stores in its buffer.

Flight Data Recording

Information that is returned when the Flight Recorder is asked for recordings of historic data.

Flight Recorder


The component of the JVM that continuously gathers diagnostics data and manages the rotating buffers.

Flight Recording

A user-readable data file containing Flight Recorder data. This file is the result of both the profiling and flight data recording. All events will be hierarchically organized as a tree, where the root of the hierarchy is the producer of the events.

Java Mission Control Server

The conceptual name for all monitoring, management, diagnostics and profiling features exposed by the JVM. It includes the Flight Recorder and the Java Management Agent.

Producer

A component that inserts data in the Flight Recorder buffer. This includes the JVM itself and a Java application which uses the Flight Recorder API, such as WLS, the DMS framework and so on.

Producer API

In internal JMX API that allows the producer can add event information to the Flight Recorder. This API will be available internally to other product groups at Oracle

Storage Mode

The value that determines if the buffer is non-persistent (in-memory, transient) or persistent (on-disk).