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Oracle WebLogic Server 11g Administration Handbook by Sam Alapati

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Using WLDF with the JRockit Flight Recorder

The JRockit JVM contains a built-in performance monitoring and profiling tool called the JRockit Fight Recorder (JFR). JFR stores diagnostic and profiling data in a file called the JRockit flight recording file, which allows you to access the diagnostic data even after a system crash. The JFR file contains JVM events and events from the WebLogic Server, as well as the various Java programs such as servlets that are running in the JVM. The recent integration of WLDF with JFR is a huge step forward in simplifying WebLogic Server diagnostic capabilities, and it greatly reduces the burden of having to manually configure various WLDF modules to capture diagnostic data. Starting with the WebLogic Server ...

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